Annual report of Research Institute of Electrical Communication 2018

Contents
1. Introduction-------------------------------------------------------------------------------------------------------------------------------------------------------

1

2. Organization Chart------------------------------------------------------------------------------------------------------------------------------------------

5

3. Research Activities-------------------------------------------------------------------------------------------------------------------------------------------

7

・

Information Devices Division - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -7

・Broadband Engineering Division

15

・

Human Information Systems Division

・

Systems & Software Division

Research Divisions---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

24-----------------------------------------------------------------------------------------------------

36

Laboratories and Centers
・Laboratory for Nanoelectoronics and Spintoronics

・------------------------------------------------------------

45

Laboratory for Brainware Systems------------------------------------------------------------------------------------------

49

・

Recognition and learning systems--------------------------------------------------------------------------------------------

51

・

Research Center for 21st Century Information Technology

・Management Office for Safety and Health・

Flexible Information System Center・

Fundamental Technology Center・Ad-hoc research groups---------------------------------------------

52-----------------------------------------------------------------------------

57----------------------------------------------------------------------------------------

58----------------------------------------------------------------------------------------------

59----------------------------------------------------------------------------------------------------------------

60

Related Organizations and Programs, etc.
・Center for Spintronics Integrated Systems (CSIS)

・

Research Organization of Electrical Communication (ROEC)---------------------------------------

63・Center for Innovative Integrated Electronics Systems (CIES)--------------------------------------

64

・Center for Spintronics Research Network (CSRN)------------------------------------------------------------

66

・Advanced Institute for Yotta Informatics - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 67

・

Leading Graduate Program・

Graduate Program in Spintronics (GP-Spin)

・Center for Science and Innovation in Spintronics (CSIS)

・Advanced Graduate Program for AI Electronics---------------------------------------------------------------------------------------------------------

5. Symposium Organized by the Institute

68
69
70

------------------------------------------------------------------

71--------------------------------------------------------------------------------------------

72----------------------------------------------------------------------------------------------------

88

6. Study Groups on Electrical Communication-------------------------------------------------------------------------------------------

94-----------------------------------------------------------------------------------------------------------------------------------

97

8. Periodicals Published by the Institute
9. Staff, Budget-------------------------------------------------------------------------

62-------------------------------------------------

4. Nation-wide Cooperative Research Projects

7. International Activities-------------------------------------------------------------------------------------------------------------------------------------------------------------------

101-------------------------------------------------------------------------------------------------------------------------------------------------------

102

2018
㸯. Introduction
It is the mission of RIEC to realize a new paradigm of communications thatenriches people’s lives. Communication is important in various ways inhuman society. Information communication technology (ICT) has beenchanging the way we deal with information drastically, overriding our
biological limitations and expanding the world of communication from amongpeople to among things as well as between people and things. RIEC isdetermined to work for future society with further advanced ICT, contributing
to the welfare of human beings by opening up a new era of academicallyrooted innovation befitting a university.
The Japan’s Fifth Science and Technology Basic Plan aims to realize a cycleof innovation toward a super-smart society. The plan sets out policies forstrengthening the fundamental technologies that will support this, including
cyber security, the “Internet of things (IoT),” big data, artificial intelligence,and devices. It goes without saying that these research fields fall under the
RIEC’s scope of expertise and that the institute must play a leading role infurthering them. Meanwhile, universities are expected to conduct basic
researches, some of which would create innovations that enriches the society.
We have such examples in the history of our institute, such as Professor
Junichi Nishizawa's three elements of optical communication and Professor
Shunichi Iwasaki's perpendicular magnetic recording. They started related
basic researches at RIEC, which opened new fields in ICT eventually. A more
recent case is spintronics, which Professor Hideo Ohno has led from basic
science to application to new devices. Magnetoresistive Random Access
Memory (MRAM) is a device that uses the spintronics technology, and is
attracting public attention as the promising candidate of a critical andemerging device in the near future ICT. The environment in which Tohoku
University and RIEC operate is constantly changing. Recognizing roles ofuniversity, RIEC must utilize resources efficiently to execute its mission anddevelop the environment for the purpose.
Since 2004, the institute’s organizational structure has been organized into
three units: four research divisions (Information Devices Division, Broadband
Engineering Division, Human Information Systems Division, and Systems &Software Division), two laboratories (Laboratory for Nanoelectronics andSpintronics, and Laboratory for Brainware Systems), and the Research

1

2018
Center for 21st Century Information Technology. These units are engaged inresearch aimed at achieving fruition over different time scales (Research
Divisions: 20 years, Laboratories: 10 years, Research Center: 5 years). In
addition, we collaborate closely with Tohoku University's graduate schools insubjects relating to electrical engineering (School of Engineering, Graduate
School of Information Sciences, and Graduate School of Biomedical
Engineering) in order to cover a wide range of cutting-edge research fields
and foster the development of outstanding researchers and engineers.
RIEC has also been certified by the Ministry of Education, Culture, Sports,
Science and Technology as a Joint Usage/Research Center for collaborative
research in information science and technology. The current fiscal year marks
the fourth year of the program’s second term. As management expenses
grants decrease, our role in advancing the information and communication
community 䇷 both in Japan and overseas 䇷 will become increasingly
important. To this end, we are collaborating on joint research projects withexternal researchers and engineers from industry, government, and academia
in a systematic manner.
Today, information and communication technology are an essential part of thesocial infrastructure. We must therefore realize faster, higher-capacity
telecommunications with greater energy efficiency performance, while theexperience of the Great East Japan Earthquake of 2011 reemphasized theimportance of ensuring that our social infrastructure has a high resilience todisaster. We are expected to contribute to a new paradigm of information
processing and communication methods that interconnect people in afundamentally different way. Developed by RIEC over more than 20 years,
Brainware has become increasingly important with current trends inartificial intelligence (AI) research. We will continue to address these social
needs by fully leveraging our strengths as a university-affiliated research
center. In doing so, we hope to forge the path to a new world of communication,and through these efforts continue to promote education going forward.
To contribute to the improvement of our research activities and support future
developments, we publish this Annual Report every year to make ouractivities relating to research, education, and social contribution widely
available for public scrutiny. This edition contains reports on a range ofactivities, including the research conducted by each of our departments and

2

2018
laboratories, collaborative research projects, international activities, social
contributions, the RIEC symposia, activities of the engineering research
association, and RIEC lectures. The bibliography section also includes dataon the various activities we have conducted over the last five years.
We welcome your frank opinions regarding our activities, and look forward to
your continued guidance and support in the future.
May 31, 2019

Satoshi Shioiri
Director, Research Institute of Electrical Communication

3

2018
2. 䚷Organization 䚷Chart
Director

Advisory Council

Information Devices Division

Deputy Director
䚷
Research Divisions

FacultyCouncilBroadband Engineering Division

Human Information Systems Division

Systems & Software Division

Research Facilities

Nano-Photoelectronics
Solid State Electronics
Dielectric Nano-Devices
Materials Functionality Design
Spintronics
Nano-Integration Devices and Processing
Quantum Devices
Magnetic Devices
Ultrahigh-Speed Optical Communication
Applied Quantum Optics
Advanced Wireless Information Technology
Information Storage Systems
Ultra-Broadband Signal Processing
Quantum-Optical Information Technology
Basic Technology for Broadband Communication
Electromagnetic Bioinformation Engineering
Advanced Acoustic Information Systems
Visual Cognition and Systems
Information Content
Real-World Computing
Nano-Bio Hybrid Molecular Devices
Multimodal cognitive system
Multimodal Computing
Software Construction
Computing Information Theory
Communication Network Systems
Environmentally Conscious Secure Information System
Soft Computing Integrated System
New Paradigm VLSI System
Information Social Structure

Laboratory for
Nanoelectronics and Spintronics

Nano-Integration Devices and Processing
Spintronics
Nano-Bio Hybrid Molecular Devices

Laboratory for Brainware Systems

Recognition and learning systems
Soft Computing Integrated System
New Paradigm VLSI System
Real-World Computing

Research Center for21st Century Information Technology

Industry-Academia-Government-Collaboration
Research and Deveropment DivisionInterdisciplinary Collaboration Research Division
exploratory Division
Management Office for Safety and HealthCommon Research
Facilities

Flexible Information System Center

Fundamental Technology Center

Administration
OfficeࠉࠉࠉࠉGeneral Affairs Section
Cooperative Research Section
Library Section
Accounting Section
Purchasing Section
Support Division
Center for Spintronics Integrated Systems
Research Organization of Electrical Communication
Center for Innovative Integrated Electronic Systems
Spintronics Research and Education Promotion Office
Advanced Institute for Yotta Informatics

52018
㸱. Research Activities
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8

Contact to Professor Yoichi UEHARA : uehara@riec.tohoku.ac.jp

2018
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Solid State Physics for Electroncis Hirokazu Fukidome, Associate Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
Graphene is a 2D honeycomb network ofcarbon atoms. Its extremely high carrier
mobility, which is ~100 times as high as thatof silicon, makes graphene a dream material.
We have developed a method to form an
epitaxial graphene onto silicon substrates forthe first time, which consists of 3C-SiC
heteroepitaxy
on
Si
and
subsequent
sublimationofsurfaceSi
atoms(graphene-on-Si). We are currently working on
betterment of the GOS quality as well as on
the development of graphene devices centeredon RF field-effect transistors and optical devices.
In FY2018, we succeeded in raising up high-frequenecy graphene transistor by tuning
graphene/dielectric interface and quantitatively evaluating a spatial distribution of surface electron
trapping of GaN-HEMT, which causes operation instabilities, so-called current collapse phenomena.
Furthermore, we developed spatiotemporal operando x-ray spectroscopy, enabling
spatio-temporally examining electronic states of advanced devices.
>6WDII@
Associate Professor : Hirokazu Fukidome, Dr.
Research Assistant : Fuminori Sasaki, Mr.
Research Assistant : Kwan-Soo Kim, Dr.
Technical Assistant : Kumi Namiiri
Technical Assistant : Misako Suzuki >3URILOH@
Prof. Hirokazu Fukidome received Ph.D on chemistry from Osaka University. After serving forBell Labs and RIKEN, he became assistant professor at RIEC in 2008. He has been associate
professor at RIEC since 2012. He has been engaged on two-dimensional Dirac electron systems andtheir operando-microscopy analysis. He was awarded the Best Paper Award from the Surface
Science Society of Japan (2011). M. Ishida Research Foundation Award (2015). RIEC Award (2016).
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

Contact to Associate Professor Hirokazu FUKIDOME : fukidome@riec.tohoku.ac.jp

9

2018
'LHOHFWULF1DQR'HYLFHV

5HVHDUFKRQ'LHOHFWULF1DQR6FLHQFHDQG7HFKQRORJ\
Dielectric Nano-Devices Yasuo CHO, Professor
Dielectric Nanoscale Measurement Systems
Kohei YAMASUE, Associate Professor
>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
Our main area of interest is evaluation anddevelopment of dielectric materials, including
ferroelectric and piezoelectric materials and theirapplication to communication devices and ferroelectric
data storage systems. Our major contributions toadvancement in these fields are the invention and thedevelopment of “Scanning Nonlinear DielectricFig.1 Digital bit data written on ferroelectric
Microscope” (SNDM) which is the first successful purely
single crystal with the areal recording
electrical method for observing the ferroelectric
density of 4 Tbit/inch2.
polarization distribution and it has already been put
into practical use. The resolution of the microscope has been improved up to atomic scale-order.
Therefore, it has a great potential for realizing the ultra-high density ferroelectric recording system. In
addition, SNDM can be used for the evaluation of various semiconductor materials and devices.
Major achievements of studies in 2018 are as follows: (1) Local deep level transient spectroscopy(DLTS) based on SNDM has been significantly improved, which allows higher resolution, broader
bandwidth, and faster acquisition speed in the nanoscale measurement of interface state density insemiconductor materials and devices (2) We showed SNDM operated in an intermittent contact modeis useful for the nanoscale investigation of carrier concentration distribution in atomically-thin layered
semiconductors such as MoS2. (3) We developed a novel recording medium using Pb(Zr,Ti)O3 thin films,
which allows higher speed data readout in hard disk type ferroelectric data storage.
>6WDII@Professor : Yasuo Cho, Ph.D.
Associate Professor㸸 Kohei Yamasue, Ph. D.
Assist. Professor: Yoshiomi Hiranaga, Ph.D. Specially-appointed Assist. Prof.: Yuji Yamagishi, Ph.D.
>3URILOH@
Yasuo Cho graduated in 1980 from Tohoku University in electrical engineering department. In 1985 hebecame a research associate at Research Institute of Electrical Communication, Tohoku University. In
1990, he received an associate professorship from Yamaguchi University. He then became an associate
professor in 1997 and a full professor in 2001 at Research Institute of Electrical Communication
Tohoku University. During this time, his main research interests included nonlinear phenomena inferroelectric materials and their applications, research on the scanning nonlinear dielectric microscope,and research on using the nonlinear dielectric microscope in next-generation ultrahigh density
ferroelectric data storage (SNDM ferroelectric probe memory).
Kohei Yamasue received the Ph. D degree in engineering from Kyoto University in 2007. He thenbecame a postdoctoral fellow in 2007 and an assistant professor in 2008 at Venture BusinessLaboratory, Kyoto University. In 2010, he joined Research Institute of Electrical Communication,
Tohoku University, as an assistant professor and, in 2016, became an associate professor. His maininterests include the development of atomic resolution scanning nonlinear dielectric potentiometry
and its applications to the evaluation of the next-generation electronic materials and devices.

>3DSHUV@

[1] Y. Yamagishi and Y. Cho: “Improvement of local deep level transient spectroscopy for microscopic
evaluation of SiO2/4H-SiC interfaces”, Materials Science Forum, Vol. 924, pp.289-292, 2018.
[2] K. Yamasue and Y. Cho: “Local carrier distribution imaging on few-layer MoS2 exfoliated on SiO2 byscanning nonlinear dielectric microscopy”, Appl. Phys. Lett., Vol. 112, No. 24, pp.243102-1-5, 2018.
[3] Y. Cho and S. Hong: “Scanning probe-type data storage beyond hard disk drive and flash memory”, MRS
Bulletin, Vol. 43, No. 5, pp.365-370, 2018.

10

Contact to Professor Yasuo CHO : yasuocho@riec.tohoku.ac.jp

2018


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Our research targets are as follows: (1) theoretical analyses of quantum phenomena in materials
and nanostructures for advanced information devices, (2) computational design of materials andnanostructures which possess new functionalities for improvement of device performance, and (3)development of new design procedures based on large-scale computational simulation techniques.
Our research activities in FY 2017 are as follows:(1) Voltage control of magnetic anisotropy (VCMA)
We reveal the origin of voltage controlled magnetic
anisotropy (VCMA) at the MgO/Co/Fe and MgO/Pt/Fe
interfaces by ab initio calculations and XMCD
measurements. The VCMA of Pt atom is attributed tovoltage-induced electric quadrupole as well as voltage–induced orbital magnetic moment.
(2) Dense metallic hydrides
New metallic phases of MgH4, ZrH4, and ZrH6 are
predicted at high pressures. The phases are expected tohave high superconducting transition temperatures; thehighest value reaches 150 K in ZrH6. It is also pointed
Fig. 1: Voltage-induced charge
out that Mg, Sc, and Zr (namely, diagonally adjacentdistribution of Pt atom at theelements) show structural similarities in dense hydride.
MgO/Pt/Fe interface.
>6WDII@Professor: Masafumi Shirai, Dr.
Associate Professor: Kazutaka Abe, Dr.
Assistant Professor: Masahito Tsujikawa, Dr.
>3URILOH@
Masafumi Shirai received the Doctor of Engineering degree from Osaka University in 1989. Since
2002, he has been a Professor at Tohoku University.
Kazutaka Abe received Doctor of Science degree from Osaka University in 1998. Since 2003, he has
been at Tohoku University as a Research Associate, as an Assistant Professor, and currently as an
Associate Professor.
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Contact to Professor Masafumi SHIRAI : shirai@riec.tohoku.ac.jp

11

2018
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12

Contact to Associate Professor Shunsuke FUKAMI : s-fukami@riec.tohoku.ac.jp

2018
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Nano-Integration Devices

Shigeo Sato, Professor

Group IV Quantum Heterointegration
Masao Sakuraba, Associate Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
In addition to the conventional demands such as faster operation and larger throughput, lowpower operation for low-carbon emission and robust operation not damaged even in a disaster are
required for the development of the next generation information technology. To meet these demands,studies on high functional and high performance Si-based semiconductor devices realized by 3-D
nano-processing and large scale integration of such devices are important research subjects. We
study the subjects such as new transistors and memories using new materials, new devices basedon new principles like quantum effects, and required 3-D processing. Moreover, we develop
advanced technologies related to 3-D nano-integration, dependable mixed signal LSI, and non von
Neumann architecture.
In this year, following experimental results have been obtained: (1) Toward the development of
quantum adiabatic computation hardware inspired by brain computation, we studied
implementation using superconducting charge qubits. We successfully confirmed by numericalsimulations that associative memory function can be obtained by learning. (2) In the depth profilesof P-doped or B-doped Si epitaxial films grown by using low-energy ECR plasma CVD without
substrate heating, gradual increasing tendency towards surface was observed. Additionally,
improvement for electrical activation of B atoms in the heavily doped film up to above 50% has been
demonstrated.
>6WDII@Professor :Shigeo Sato, Dr.
Associate Professor :Masao Sakuraba, Dr.
>3URILOH@
Shigeo Sato was received his B.E. and Ph.D.
degrees from Tohoku University, in 1989 and1994, respectively. In 1996, he joined the
Research Institute of Electrical Communication,
Tohoku University. Now, he studies brain
computer and quantum computer as a professor.
Masao Sakuraba received his B.E. and Ph.D.
degrees from Tohoku University in 1990 and
7RZDUGVWKH5HDOL]DWLRQRI 
D3URWRW\SH%UDLQ&RPSXWHU
1995, respectively. In 1995, he joined the
Research Institute of Electrical Communication,
Tohoku University. Now, he studies group IV quantum heterointegration as an associate professor.
>3DSHUV@
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Contact to Professor Shigeo SATO : shigeo@riec.tohoku.ac.jp

13

2018
4XDQWXP'HYLFHV(OHFWURQLFSURSHUWLHVRIQDQRVWUXFWXUHVDQGGHYLFHDSSOLFDWLRQV
Quantum Devices: Tomohiro Otsuka, Associate Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
In solid-state nanostructures, exotic phenomena like quantum effects occur. We are exploring
interesting properties of solid-state nanostructures utilizing precise and high-speed electricmeasurement and control techniques. We are also developing materials and devices utilizing
nanostructures.
Our research activities in FY 2018 are the following.
(1) Development of high-speed electric microprobes
We improved the operation of the local electronic probes which
can directly access local electronic states in nanostructuresutilizing high-frequency measurement techniques and data
informatics approaches.
(2) Measurement of local electronic states and their dynamics
We measured real-time changes of local electronic and spinstates in a hybrid system which consists of a semiconductor
quantum dot and an electronic reservoir. We revealed thedetail of local dynamics induced by movement of a single
electron [1].
(3) Quantum bit experiments
Figure:Scanning
electron
We applied the local measurement techniques to quantum bit
experiments. We realized precise quantum bit operations,micrographoftheconversion between different qubits and multiple quantum dot
nanostructure devices
operations [2, 3].
>6WDII@
Associate Professor: Tomohiro Otsuka, Ph. D.
>3URILOH@
Tomohiro Otsuka received Ph. D. degree from the University of Tokyo in 2010. After working for the
University of Tokyo and RIKEN, he became an Associate Professor at Tohoku University in 2018.
He received Research Encouraging Prize from School of Science, University of Tokyo (2010), NF
Foundation R&D Encouragement Award (2016), Young Scientist Award of the Physical Society ofJapan (2017), RIKEN Researcher Incentive Award (2017), Yazaki Memorial Foundation for Scienceand Technology Research Encouraging Award (2018), and the Young Scientists’ Prize of Science andTechnology by MEXT (2018).
>3DSHUV@>@ 72WVXND71DNDMLPD05'HOEHFT36WDQR6$PDKD-<RQHGD.7DNHGD*$OOLVRQ6/L$1RLUL7
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14Contact to Associate Professor Tomohiro OTSUKA : tomohiro.otsuka@riec.tohoku.ac.jp

2018%URDGEDQG(QJLQHHULQJ'LYLVLRQ㸸5HVHDUFK7DUJHWVDQG5HVXOWVIn order to establish future broadband communication systems and novel devices thatcan be flexibly applied to future ubiquitous ultra-high capacity information
communications, research and development is being carried out over the wide spectrumof microwaves, millimeter/submillimeter waves, terahertz waves, and lightwaves withregard to information generation, transmission, processing, and storage technologies.
(1) Ultrahigh-Speed Optical Communication
We are engaged in research on ultrahigh-speed optical transmission, digital coherent
transmission, and high-speed and spectrally efficient optical transmission by combining
these two approaches. With a view to supporting innovative new ICT services such as
5G and IoT, our goal is also to develop novel transmission schemes integrating opticaland wireless communications.
This year, we successfully achieved a single-channel 10 Tbit/s Nyquist pulse
transmission over 300 km, which was enabled by generation of subpicosecond Nyquist
pulses and their dispersion compensation up to higher order and ultrafast
demultiplexing. We also developed a bi-directional digital coherent transmission systemwith an injection-locked homodyne receiver, and demonstrated 80 Gbit/s, 256 QAM
transmission with a loss budget of 14 dB. This result indicates the applicability of digital
coherent technologies to high-speed mobile fronthaul.
(2) Applied Quantum Optics
Novel functional semiconductor photonic devices including photonic integrated
circuits are being investigated to explore next-generation photonic network systems.
A study on high speed semiconductor laser introducing hybrid modulation scheme isbeing continued. It was confirmed numerically and experimentally that the frequency
chirp in generated high speed optical signal by the laser which determines thetransmission performance in long-haul optical fiber can be reduced drastically. A study
on electron spin polarization controlled VCSEL is also progressing to realize very highspeed lasing mode’s polarization switch. It was confirmed that the modulation sensitivity
can be enhanced at the vicinity of the frequency coincident with a birefringence-induced
polarization mode splitting under the electron spin polarization modulation, which leads toa wide modulation bandwidth of the VCSEL not limited by the relaxation oscillation
frequency. A wide 3-dB bandwidth of 23 GHz was experimentally confirmed by utilizing an
optical spin polarization modulation technique.

15

2018

(3) Advanced Wireless Information Technology
We are actively engaged in research work on dependable wireless information
technologies for next-generation wireless systems, which include terrestrial / satellite
communications. The covered areas of us are all technical fields from the lower to higher
layers, i.e., signal processing, RF/Mixed-signal device, antenna, MODEM, and network
technologies. This year, we have investigated (1) a millimeter-wave wireless body area
network (WBAN) to realize broadband and reliable communication and (2) nonorthogonal multiple access (NOMA) for increasing capacity of next-generation wirelesscommunication systems such as 5G (5th generation mobile communication system).
(4) Information Storage Systems
Research on next-generation perpendicular magnetic recording is being carried out
to meet the strong demand for high density, low cost storage due to the rapid growth of
the Internet and web services.
We have been investigating novel, three dimensional, energy-assisted recording
technologies that enable selective recording on media with multiple, discrete recording
layers. Methods to reduce interactions between the recording layers have also been
proposed. Composite media designs to improve the recording performance of heatassisted magnetic recording systems have been developed. Such media structures canalso lead to higher data rates during recording. The simultaneous readback of two tracks
with single or multiple readers was investigated in order to increase the data transfer
rate during reading.
(5) Ultra-Broadband Signal Processing
We are developing novel, integrated electron devices and circuit systems operatingin the terahertz region. One of our major concerns is a new material called “graphene”,
a single-layered honeycomb-lattice carbon crystal.
First, towards the creation of novel current-injection graphene THz laser-transistors,
we developed an graphene laser-transistor featured with our original asymmetric dualgrating gates demonstrating coherent amplification of THz radiation with the maximal
gain of 9% at room temperature promoted by graphene plasmon instabilities driven by
dc-channel current flow. Second, for the realization of photonics-electronics convergencedevices, we introduced a photoabsorption structure of a unitraveling-carrier photodiodeinto an InGaAs-channel high-electron-mobility transistor and successfully demonstrated
the enhancement of the gain of the frequency down-conversion from 1.5-μm optical data
signal to millimeter-wave data signal by more than three orders of magnitude.

16

2018

(6) Quantum-Optical Information Technology
Our goal is to develop quantum information devices utilizing the quantum
interaction between photons and electrons in solids.
In 2018, we have achieved (1) generation of frequency-entangled photons with twoperiod PPLN crystal, (2) development of a novel sensor for mg-scale gravity
measurements, (3) observation of local-field effects on optical coherent transients ofsemiconductor bound excitons, and (4) controlled introduction of nano and micro
particles to a nanofiber surface and the measurement of the chiral polarization response.

17

2018
5HVHDUFK/DERUDWRU\RI8OWUDKLJK6SHHG2SWLFDO&RPPXQLFDWLRQ

7RZDUG,QQRYDWLYH2SWLFDO7UDQVPLVVLRQIURP%DFNERQHWR$FFHVV1HWZRUNV
Research Area of Ultrahigh-Speed Optical TransmissionToshihiko Hirooka, Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
Advanced global ICT services such as ultrahigh-definition video transmission and ultra-realistic
communication cannot be realized without high-speed and large-capacity optical transmission
systems. At the same time, optical transmission schemes with high spectral efficiency are crucial interms of the maximum utilization of limited bandwidth resources. In our laboratory, we are engaged
in research on ultrahigh-speed optical transmission using optical time division multiplexing with asingle-channel Tbit/s-class capacity, digital coherent QAM optical transmission, and high-speed andspectrally efficient optical transmission by combining these two approaches. With a view tosupporting innovative new ICT services such as 5G and IoT, our goal is also to apply digital
coherent transmission to access networks and mobile fronthaul, and to develop novel transmission
schemes integrating optical and wireless communications. This year, we successfully achieved asingle-channel 10 Tbit/s Nyquist pulse transmission over 300 km, which was enabled by generation;SRODUL]DWLRQ
of subpicosecond Nyquist pulses andSV7ELWVZDYHIRUP
)(&WKUHVKROG<SRODUL]DWLRQ[7EDXG
their dispersion compensation up tohigherorder
andultrafast
demultiplexing (Fig. 1). We also
developedabi-directional
digital 
coherent transmission system with anSV7EDXG ZDYHIRUP
injection-locked homodyne receiver, anddemonstrated 80 Gbit/s, 256 QAM
transmission with a loss budget of 14 dB.
This result indicates the applicability of 
digitalcoherent
technologies
to Fig. 1. 10 Tbit/s Nyquist pulse waveform and 300 km
transmission result.
high-speed mobile fronthaul.
>6WDII@Professor: Toshihiko Hirooka, Dr.
Assistant Professor: Keisuke Kasai, Dr.
Research Fellow: Hisao Kuroda>3URILOH@
Toshihiko Hirooka received the Ph. D. degree from Osaka University in 2000. From 2000 to 2002,
he was a Research Associate at University of Colorado at Boulder. He is currently a Professor at the
Research Institute of Electrical Communication, Tohoku University. He has been engaged inresearch on ultrahigh-speed optical communications and nonlinear fiber optics.
>3DSHUV@
[1] M. Nakazawa, M. Yoshida, M. Terayama, S. Okamoto, K. Kasai, and T. Hirooka, "Observation ofguided acoustic-wave Brillouin scattering noise and its compensation in digital coherent opticalfiber transmission," Opt. Express vol. 26, no. 7, pp. 9165-9181, April (2018).
[2] K. Kimura, J. Nitta, M. Yoshida, K. Kasai, T. Hirooka, and M. Nakazawa, "Single-channel 7.68
Tbit/s, 64 QAM coherent Nyquist pulse transmission over 150 km with a spectral efficiency of 9.7
bit/s/Hz," Opt. Express vol. 26, no. 13, pp. 17418-17428, June (2018).
[3] T. Hirooka, R. Hirata, J. Wang, M. Yoshida, and M. Nakazawa, “Single-channel 10.2 Tbit/s (2.56
Tbaud) optical Nyquist pulse transmission over 300 km,” Opt. Express, vol. 26, no. 21, pp.
27221-27236, October (2018).

18

Contact to Professor Toshihiko HIROOKA : hirooka@riec.tohoku.ac.jp

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Highly Functional Photonics
Hiroshi Yasaka, Professor
High accuracy optical measurement Masato Yoshida, Associate Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
Novel functional photonic devices including high function laser diode (LD) sources arebeing investigated to explore new-generation photonic network systems.
The studies on ultra-high-speed semiconductor lasers are being continued. It was
confirmed that high speed lasing mode’s polarization switch can be realized by utilizing electron
spin polarization modulation in an active region of VCSEL which reads to a wide operation
bandwidth not limited by the relaxation oscillation frequency.
Furthermore the study on compact and narrow linewidth semiconductor laser sources isalso being proceeded by applying the optical negative feedback technology we proposed.
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&DUULHUGHQVLW\PRGXODWLRQ 1R0RGXODWLRQIUHTXHQF\ *+]Schematic structure of spin polarization modulation VCSEL (left), calculated (center) andmeasured (right) responses of VCSEL under electron spin polarization modulation.

>6WDII@Professor 㸸
Hiroshi Yasaka, Dr.
Associate Professor :Masato Yoshida, Dr.
Assistant Professor 㸸 Nobuhide Yokota, Dr.
>3URILOH@
Hiroshi Yasaka received M.S. degrees in physics from Kyusyu University in 1985, and Ph.D.
degree in electronic engineering from Hokkaido University in 1993. In 1985 he joined Nippon
Telegraph and Telephone (NTT) Corporation. Since then, he has been engaging in research anddevelopment on semiconductor photonic devices for optical fiber communication systems. From2008 he has been a professor of Tohoku University.
Masato Yoshida received Ph.D. degree in electronic engineering from Tohoku University in 2001.
In 2001, he joined the Research Institute of Electrical Communication, Tohoku University. He iscurrently an Associate Professor of the Institute. He has been engaging in research on fiber lasers
and their application to optical measurements.

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Contact to Professor Hiroshi YASAKA : yasaka@riec.tohoku.ac.jp

19

2018
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>6WDII@Professor: Noriharu Suematsu, Ph.D
Associate Professor: Suguru Kameda, Ph.D
Assistant Professor: Mizuki Motoyoshi, Ph.D
>3URILOH@
Noriharu Suematsu received the M.S. and Ph.D. degrees in Electronics and Communication
Engineering from Waseda University in 1987 and 2000. From 1987 to 2010, he had been with the
R&D center of Mitsubishi Electric, Japan. Since 2010, he has been a professor of Research Instituteof Electrical Communication (RIEC), Tohoku University. He received the OHM technology award
from the promotion foundation for electrical science and engineering in 2002 and Prize for Science andTechnology, the Commendation for Science and Technology by the Minister of Education, Culture,
Sports, Science and Technology in 2009.
Suguru Kameda received the B.S., M.S. and Ph.D. degrees in Electronics Engineering from Tohoku
University in 1997, 1999 and 2001, respectively. From 2001, he was an assistant professor of the
RIEC. From 2012, he has been currently an associate professor.

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20

Contact to Professor Noriharu SUEMATSU : suematsu@riec.tohoku.ac.jp

2018,QIRUPDWLRQ6WRUDJH6\VWHPV +LJK'HQVLW\DQG+LJK6SHHG(QHUJ\$VVLVWHG0DJQHWLF5HFRUGLQJInformation Storage Systems: Simon Greaves, Associate Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
We have been working on technologies to increase the speed and density of magnetic recording
devices. During this year research was concentrated on microwave-assisted magnetic recording(MAMR), with additional work on heat-assisted magnetic recording (HAMR). Modeling ofmagnetoresistive random access memories (MRAM) was also carried out.
In a MAMR system it is possible to record information on a medium consisting of multiple,
discrete storage layers by utilising storage layers with different ferromagnetic resonancefrequencies. During recording a spin torque oscillator located next to the write head generates ahigh frequency magnetic field at the resonance frequency of the appropriate storage layer, enabling
selective recording on that layer only. The work in [2] describes how to optimise a dual layer system
by introducing anti-ferromagnetic coupling between the recording layers to mitigate magnetostaticinteractions between the layers. The work in [3] demonstrates magnetic recording using only a spin
torque oscillator. Switching of magnetic grains with an exchange-coupled composite structure wasshown to be possible under a wide range of conditions. A review of heat assisted magnetic recording
is given in [4].
>6WDII@
Associate Professor: Simon Greaves, Ph.D. (since 2003)>3URILOH@
Simon Greaves has been at Tohoku University since 2003. He developed micromagnetic simulation
software to model magnetic recording and to investigate the potential of magnetic, information
storage devices. He received his Ph.D. in 1993 from Salford University, U.K.
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Contact to Associate Professor Simon J. Greaves : simon@riec.tohoku.ac.jp

21

2018
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We are developing novel, integrated electron devices and circuit systems operating in the terahertz(THz) region. First, towards the creation of novel current-injection graphene THz laser-transistors, wedeveloped a graphene laser-transistor featured with our original asymmetric dual-grating gates
demonstrating coherent amplification of THz radiation with the maximal gain of 9% at room
temperature promoted by graphene plasmon instabilities driven by dc-channel current flow. Second,
for the realization of photonics-electronics convergence devices, we introduced a unitraveling-carrier
photodiode structure into an InGaAs-channel high-electron-mobility transistor and successfully
demonstrated the enhancement of the gain of the frequency down-conversion from 1.5-μm opticalsignal to millimeter-wave signal by more than three orders of magnitude.

>6WDII@Professor: Taiichi OTSUJI, Dr. Eng.
Associate Professor: Akira SATOU, Dr. Comp. Sci.
Assistant Professor: Takayuki WATANABE, Dr. Eng.
Research Fellow: Victor RYZHII, Ph.D.
Secretary: Kayo UENO
>3URILOH@
Taiichi OTSUJI: received the Dr. Eng. deg. from Tokyo Tech., Japan, in 1994. After working for NTT
Labs., Japan, since 1984, he joined Kyutech in 1999, as an Assoc. Prof., being a prof. from 2002. Since
2005, he has been a Prof. at RIEC, Tohoku Univ., Japan. Recipient of the Outstanding Paper Award of
the 1997 IEEE GaAs IC Symposium. Distinguished Lecturer, Electron Device Society, IEEE, since2013. Member of IEEE (Fellow), OSA (Senior), MRS, SPIE, IEICE, and JSAP.
Akira SATOU: received Dr. Comp. Sci. from Univ. of Aizu, Japan, in 2008. He was an AssistantLecturer, ISTC, Univ. of Aizu, in 2008 and CAIST, Univ. of Aizu, in 2009. He joined RIEC, Tohoku Univ.,
Japan, in 2010 as an Assistant Professor and was promoted to an Associate Professor in 2017. He is amember of IEEE (Senior), APS, JSAP, and IEICE.
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22

Contact to Professor Taiichi OTSUJI : otsuji@riec.tohoku.ac.jp

2018
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Quantum-Optical Information Technology: Keiichi Edamatsu, Professor
Quantum Laser Spectroscopy: Yasuyoshi Mitsumori, Associate professor
Quantum Nanophotonics: Mark Sadgrove, Associate professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
Our goal is to develop quantum information devices/
utilizing quantum interaction between photons and elec/಑
trons in solids. In 2018, we have achieved (1) generationof frequency-entangled photons with two-period PPLN
crystal, (2) development of a novel sensor for mg-scale Fig. 1. An illustration of the scheme forgravity measurements, (3) observation of local-field ef- producing frequency-entangled photons. A
fects on optical coherent transients of semiconductor nonlinear crystal has two different polingbound excitons, and (4) controlled introduction of nano periods so that produced photon pairs withand micro particles to a nanofiber surface and the meas- orthogonally polarized photon pairs can beurement of the chiral polarization response.
frequency entangled.
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9HUWLFDOSRODUL]DWLRQ>6WDII@Professor: Keiichi Edamatsu, Dr.
Associate Professor: Yasuyoshi Mitsumori, Dr.
Associate Professor: Mark Sadgrove, Dr.
>3URILOH@
Keiichi Edamatsu received B.S., M.S., and D.S. degrees in Physics from Tohoku University. He was a
Research Associate in Faculty of Engineering, Tohoku University, a Visiting Associate in California
Institute of Technology, and an Associate Professor in Graduate School of Engineering Science, Osaka
University.
Yasuyoshi Mitsumori received B.S., M.S. and D.S. degrees in Applied Physics from Tokyo Institute ofTechnology. He was a Research Fellow of the Japan Society for the Promotion of Science, a Researcher
in NTT Basic Research Laboratories, a Postdoctoral Fellow in Tokyo Institute of Technology, a Postdoctoral Fellow in Communications Research Laboratory, a Research Associate in Research Institute ofElectrical Communication, Tohoku University.
Mark Sadgrove received B.S., M.S., and Ph.D degrees in science from University of Auckland. He wasa Postdoctoral Fellow in The University of Electrocommunications, a Postdoctoral Fellow in Gakushuin
University, and an Assistant Professor (nontenured) in The Center for Photonic Innovations, The University of Electrocommunications>3DSHUV@>@  <0LWVXPRUL6:DWDQDEH.$VDNXUD.6HNL.(GDPDWVX.$NDKDQHDQG1<DPDPRWR³(IIHFWRIWKHGHSRODUL]DWLRQILHOGRQFRKHUHQWRSWLFDOSURSHUWLHVLQVHPLFRQGXFWRUTXDQWXPGRWV´3K\V5HY%  >@ ).DQHGD+6X]XNL56KLPL]XDQG.(GDPDWVX³'LUHFWJHQHUDWLRQRIIUHTXHQF\ELQHQWDQJOHGSKRWRQVYLDWZRSHULRGTXDVLSKDVHPDWFKHGSDUDPHWULFGRZQFRQYHUVLRQ´2SW([S  >@ 1 0DWVXPRWR 6 % &DWDxR/RSH] 0 6XJDZDUD 6 6X]XNL 1$EH . .RPRUL < 0LFKLPXUD <$VR DQG .
(GDPDWVX³'HPRQVWUDWLRQRI'LVSODFHPHQW6HQVLQJRIDPJ6FDOH3HQGXOXPIRUPPDQGPJ6FDOH*UDYLW\0HDVXUHPHQWV´3K\V5HY/HWW  Contact to Professor Keiichi EDAMATSU : eda@riec.tohoku.ac.jp

23

2018
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To realize advanced information communications systems, it is essential to understand andapply sophisticated information processing mechanisms of human being as well as to establish
communications environments in that human can communicate anywhere, anytime without
recognizing the communications tools. The aim of this division is to research and develop core andsystem technologies essential to advanced human friendly information and communications
systems through understanding biological information generation mechanisms, human information
processing mechanisms focusing on acoustic and visual inputs, and optimizing the communications
environments.
To achieve the goal of the Division, six laboratories have been carrying out researches anddevelopments in the following areas: (1) Electomagnetic Bioinformation Engineering, (2) Advanced
Acoustic Information Systems, (3) Visual Cognition and Systems, (4) Information Content, (5)Real-world computing, (6) Nano-Bio Hybrid Molecular Devices, (7) Multimodal Cognitive System
Laboratory.
The goals and achievements in the fiscal year 2018 of each laboratory are described in detailbelow.
(1) Electromagnetic Bioinformation Engineering(Aims) This laboratory aims at obtaining the high accuracy sensor system for the signals from thehuman body or electric devices and at obtaining the system for approaching action to the humanbody by using the nano-scale controlled magnetic materials and by the development of the devices
under the functions of the magnetics.
(Achievements) To develop a high sensitive microvibration measuring system, we worked on the
fabrication of high sensitive strain sensors on a Si wafer and the design of detection circuits withultra-low noise. The obtained proto-type system shows extra-high sensitivity compare with thecommercial products. On the work of high frequency magnetic field measuring system, we havesucceeded in imaging the distribution of up to 6GHz magnetic field generated from electronic
circuits by our proposed system. This system is going on the commercialization with thecorroborated work with a company. The study about nanostructured magnetic materials using
magnetic nanoparticles was carried out for the creation of novel functional materials such as
extraordinary strong magnets.
(2) Advanced Acoustic Information Systems(Aims) To propose high-definition communication systems that convey a rich and natural sense ofpresence. To this end, we are developing acoustic information processing technologies based onwell-grounded knowledge of the human auditory system and the multimodal perception processes
related to hearing.
(Achievements) We have focused on the auditory attention mechanism from various points of view.

24

2018
The effects of spatio-temporal cues on the understanding of a speech target were quantitatively
characterized through psychophysical experiments. Moreover, it was observed that when thelisteners’ attention is drawn to a specific distance, they are able to identify an auditory target
presented from same distance faster than when it is presented from elsewhere. These findings could
be applied to the diagnosis of auditory processing disorders (APD). In addition, we develop advanced
acoustic systems, such as 3D virtual auditory displays, sound acquisition and presentation systems.
We proposed a modeling method for head-related transfer functions (HRTFs), an importantcomponent in binaural systems, based on the spherical wavelet transform. The proposed method caneffectively express the local characteristics of HRTFs. We also evaluated the extension andcoloration of multiple listening zones synthesized by our proposed shared auditory-field
reproduction system.
(3) Visual Cognition and Systems(Aims) To understand the vision-related brain functions in order to apply the knowledge to realize
human oriented information communication systems.
(Achievements) We achieved results in the fields of implicit learning of visual environments throughbody movements and illusory visual perception of object orientations. Firstly, we investigated theability to process spatial information surrounding the viewer visually in the condition where not all
information can be processed simultaneously. To investigate the function, we developed anexperimental procedure, where the observer searched a target in the 360° visual, moving the body,the head and the eyes. The results showed that the visual system obtains spatial information
surrounding the viewer without explicit knowledge by repeated visual searches. Secondly, we founda new visual illusion of object orientation. When a rotating object (inducer) is briefly replaced by astatic face image (test stimulus), the orientation of the face appears to shift in the rotation directionof the inducer (object orientation induction, OOI). The OOI suggests that there is a predictive
process that continuously analyzes and updates the orientation of rotating objects, independently of
their identification.
(4) Information Content(Aims) As the Internet of Things (IoT) expands, everything around us coming online and joining
integrated networks. Even everyday items like furniture are going digital. We view all artifacts,
physical and digital, as content. Honoring the unique perspectives of people, systems, and theenvironments they inhabit, we study the interactions between types of content, with the ultimate
goal of formulating cohesive, holistic, and intuitive approaches that promote efficiency, ease of use,and effective communication, we focus on content design to enhance living.
(Achievements)
This year, we contributed novel spatial user interfaces. First, we proposed and prototyped atransformable digital table by combining modular self-actuated tables that physically and spatially
adapts its shape to user’s physical characteristics. Second, we created a novel intuitive world

25

2018
building tool in virtual reality using metaphors of world-tree and blocks. Finally, we proposed
Redirected jumping, a novel locomotion method in immersive room-scale virtual environment,
enabling imperceptible manipulations of user’s jumping motions and their distance/direction
perceptions.
(5) Real-world computing(Aims) This laboratory aims at understanding the mechanism underlying adaptive and resilient
behavior of animals from the viewpoint of decentralized control schemes.
(Achievements) The main contributions achieved in 2018 are summarized as follows: (1) we haveelucidated the gait transition mechanism in centipedes through mathematical modeling based on
behavioral observations; (2) we have proposed a minimal model for body-limb coordination ofquadrupeds and have developed a robotic platform to validate it; (3) we have improved theTegotae-based control model for undulatory locomotion which we proposed previously, and havesucceeded in enlarging adaptable environments; (4) we have succeeded in elucidating the decision
making mechanism of brittle stars through mathematical modeling based on behavioral
experiments wherein the nerve ring is partially transected.
(6) Nano-Bio Hybrid Molecular Devices.
(Aims) Our research activities focus on development of sophisticated molecular-scale devices
through the combination of well-established microfabrication techniques and various soft materials,
such as biomaterials and organic materials.
(Achievements) Mechanically stable lipid bilayers were formed on microfabricated silicon chips that
had amphiphobic surfaces through surface modification. We succeeded in reconstitution of cardiac
hERG channel proteins into the lipid bilayers and recording their activities at the single-channel
level. We also showed that by implementing modular organization to cultured cortical neurons, their
network can be tuned to generate much richer in dynamics both spatially and temporally. Anotherachievement is fabrication of a novel photo-sensing device based on a hybrid of phospholipid bilayers
and organic semiconductor molecules.
(7) Multimodal Cognitive System Laboratory(Aims) This group aims to study the basic mechanisms underlying multimodal cognitive systems,
including vision, audition, tactile sensation, gustation and olfaction, together with the relatedgroups such as the Advanced Acoustic Information Systems and the Visual Cognition and Systems
groups.
(Achievements) In this year, we have done some experiments about the followings; the effect of odors
of fabric softeners on perception and estimation of female faces, the effects of visually presented
brand information on perception of coffee flavor, the interactions between color and flavor in foodrecognition, etc. We have also started the cognitive studies about interaction of the intention and/or
the cognition for the actions with the perception.

26

2018
(OHFWURPDJQHWLF%LRLQIRUPDWLRQ(QJLQHHULQJ&RPPXQLFDWLRQZLWKKXPDQERG\
Electromagnetic Bioinformation Engineering, Kazushi Ishiyama, Professor
Electromagnetic Biomaterial Engineering, Shuichiro Hashi, Associate Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
To develop a high sensitive microvibration measurement system, fabrication of high sensitive strain
sensors on Si wafer and the design of detection circuits with low noise were carried out. Imaging
sensitivity of high frequency magnetic field measuring system was promoted by applying newtechnologies. In addition, wireless magnetic motion capture system with four-excitation-coils wasstudied to improve its detection accuracy. The study about optimization of structure for obtaining highsensitivity was carried out for high frequency carrier type magnetic sensor.

6L VXEVWUDWH

6WUDLQ 
YLEUDWLRQ VHQVRU
Fig. 1 Strain and vibration sensor using
inverse-magnetostrictive effect.

>6WDII@Professor: Kazushi Ishiyama, Dr.
Associate Professor: Shuichiro Hashi, Dr.
Assistant Professor: Yoshiaki Hayashi, Dr.

Fig. 2 High frequency magnetic field measuringsystem using magneto-optical crystal probe>3URILOH@
Kazushi Ishiyama received his MS and PhD degrees in Electrical Engineering from Tohoku University
in 1986 and 1993, respectively. His research interests are in the area of magnetics and magnetic
applications.
Shuichiro Hashi received the DE degree in Electrical Engineering from Tohoku University in 1998. His
research interests are in the area of magnetic measurement and magnetic materials.
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0DWHULDOV9ROSS  Contact to Professor Kazushi ISHIYAMA : ishiyama@riec.tohoku.ac.jp

27

2018
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Illustration of the research topics and process in this laboratoryAdvanced Acoustic Information Systems: Yôiti Suzuki, Professor
Auditory and Multisensory Information Systems: Shuichi Sakamoto, Associate Professor>5HVHDUFKWDUJHW@
Our research goal is to clarify the how humans process information through "hearing," which isone of the most important modalities in human perception. In addition, we investigate themultimodal processing of auditory and visual information, as well as proprioception. Our findings
are applied towards the development of advanced acoustic communication systems and userinterfaces, including the realistic and comfortable expression of three-dimensional sound spaces.

>$FWLYLWLHVRI@
1. Understanding of hearing and its related multimodal sensory information perceptual processes.
Humans form stable and accurate mental images of their external environment by integrating
information from multiple senses. Within this context, our research focuses on the role of audition
and related multimodal sensory information processing. During the fiscal year 2018, we pursued
research on the perception of spatial sound during self-motion, achieving several new findings. In
particular, we examined the relationship between rotational motion and stimulus duration inhorizontal sound image localization. We found it possible for sound image localization performance
to be improved through active listening. Further, duration of the auditory stimulus was not found tobe as important for accurate sound localization as previously thought. This result was published asa journal article [1].

28Contact to Associate Professor Shuichi SAKAMOTO : saka@ais.riec.tohoku.ac.jp

20182. Research on 3D sound space perception, as well as its and control and reproduction
Three-dimensional sound recording and reproduction are critical to convey high-level perceptual
information, such as the sense-of-presence, in communication systems. During fiscal year 2018 we
proposed the theory of Boundary Matching Filters to calculate optimal loudspeaker driving signal
for spatial sound reproduction. The proposal relies on the spherical harmonic expansion to match arecording boundary, sampled using microphones, to a reproduction one. This result was publishedin an international journal [2].
3. Kansei evaluation of auditory and multimodal space
Next-generation communication systems are expected to present virtual environments in arealistic “as if you were there” fashion. To achieve this goal, it is necessary to elucidate the processes
involved in human perception of the external environment through our various senses. In fiscal
year 2018, we looked into the difference between sense-of-presence, the feeling of “being there,” andverisimilitude, the impression of being “the real thing.” To this end, we conducted perceptual
experiments using multimodal contents, including vibration. In particular, we compared theperformance of real-world vibration information to that of synthetic one derived from soundrecordings at the scene. The synthetic vibration was shown to convey high-level kansei information
to the same degree as the real-world measurement. Further, in some cases the synthetic vibration
can achieve a higher score in verisimilitude evaluations. These results were published as an invited
paper in an academic journal [3].

>6WDII@Professor: Yôiti Suzuki (since 1999)
Associate professor: Shuichi Sakamoto (since 2011)
Assistant professors: Zhenglie Cui, Jorge Trevino
Specially appointed assistant professor: Cesar Daniel Salvador
Technical Staff: Fumitaka Saito
Secretaries: Miki Onodera, Makiko Minowa>3URILOH@Yôiti Suzuki graduated from Tohoku University in 1976 and received his Ph. D. degree in ’81 also
from Tohoku University. His research interests include psychoacoustics and digital signal
processing of acoustic signals. He served as president of the Acoustical Society of Japan from 2005
to ’07 and a board member of the Japan VR Society since ‘14. He is a fellow of the Acoustical Societyof America.
Shuichi Sakamoto graduated from Tohoku University in 1997 and received his Ph. D. degree in2004 also from Tohoku University. His research interests include human auditory and multisensory
information processing and development of advanced multimodal information systems. Since 2016
he is serving as a board member of the Acoustical Society of Japan.

29

2018
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ORXGVSHDNHUDUUD\V´,(((7UDQVDFWLRQVRQ$XGLR6SHHFKDQG/DQJXDJH3URFHVVLQJ     
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30

2018
9LVXDO&RJQLWLRQDQG6\VWHPV/DERUDWRU\

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Our target is to understand the vision-related brain functions in order to apply the knowledge torealize human oriented information communication systems. We made achievements in the fields of
implicit learning and object perception.
Firstly, we investigated the ability to process spatial
information surrounding the viewer visually in the condition
where not all information can be processed simultaneously.
To investigate the function, we developed an experimental
procedure, where the observer searched a target in the 360°
visual field, moving the body, the head and the eyes. The
results showed that the visual system obtains spatial
information surrounding the viewer without explicit
Figure. Experimental setup to investigate implicit
knowledge by repeated visual searches. Secondly, we found alearning of surroundings
new visual illusion of object orientation perception. When arotating object (inducer) is briefly replaced by a static face image (test stimulus), the orientation of
the face appears to shift in the rotation direction of the inducer (object orientation induction, OOI).
We investigated the perception of object orientation in motion, examining potential factors that
contribute to OOI and found that the phenomenon is general to objects rather than specific to faces;
OOI could be observed with non-face objects. Further experimetns revealed that salient features
are necessary, that neither the object shape nor its identity is important, and that OOI is aphenomenon in the pathway for fast visual processing. These results suggest that there is apredictive process that continuously analyzes and updates the orientation of rotating objects,
independently of their identification.
>6WDII@Professor 㸸 Satoshi Shioiri, Ph.D.
Associate Professor 㸸 Ichiro Kuriki, Ph.D.
Associate Professor 㸸 Chia-huei Tseng, Ph.D.
>3URILOH@
Satoshi SHIOIRI Professor Shioiri graduated Tokyo Institute of Technology and received Dr. Eng in 1986. In 2005, he joined
Tohoku University and he has been a professor of Research Institute of Electrical Communication of Tohoku University since then.
Ichiro KURIKI Dr. Kuriki received Ph.D. degree from Tokyo Institute of Technology in 1996. After then, he worked at Imaging
Science and Engineering Laboratory, Tokyo Institute of Technology as a research associate until October, 1999. He joined the
Research Institute of Electrical Communication, Tohoku University as an Associate Professor in January, 2006.
Chia-huei TSENG Dr. Tseng is an expert on visual attention, perception, and learning. She received her B.S. and B.M.S. from
National Taiwan University and PhD from The University of California, Irvine, U.S.A.. She was a post-doc researcher atLaboratory of Vision Research at the Center for Cognitive Science, Rutgers University, New Jersey. She has designed science
outreach activities to engage community participation in many Asian cities. She was the founder and director of Baby Scientist
Program and Infant Research Lab in Hong Kong. Before joining Tohoku University as associate professor in 2016, she was auniversity professor in Taiwan and Hong Kong.

>3DSHUV@
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Contact to Professor Satoshi SHIOIRI : shioiri@riec.tohoku.ac.jp

31

2018
,QIRUPDWLRQ&RQWHQW

7HFKQRORJLHVIRU,QWHUDFWLYH&RQWHQW,QWHUDFWLYH&RQWHQW'HVLJQ<RVKLIXPL.,7$085$  3URIHVVRU+XPDQ&RQWHQW,QWHUDFWLRQ.D]XNL7$.$6+,0$  $VVRFLDWH3URIHVVRU>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
As the Internet of Things (IoT) expands, everything around us coming online and joining integrated
networks. Even everyday items like furniture are going digital. We view all artifacts, physical anddigital, as content. Honoring the unique perspectives of people, systems, and the environments they
inhabit, we study the interactions between types of content, with the ultimate goal of formulatingcohesive, holistic, and intuitive approaches that promote efficiency, ease of use, and effective
communication, we focus on content design to enhance living.
In this year, we proposed a transformable digital table using modular self-actuated tables thatphysically adapts its shape to user’s physical characteristics [1]. We also created a novel VR worldbuilding tool using metaphors of world-tree and blocks [2], and explored Redirected jumping techniquethat enables imperceptibly manipulate user’s perceptions during jump motions [3].

>6WDII@Professor: Yoshifumi Kitamura, Dr.
Associate Professor: Kazuki Takashima, Dr.
Assistant Professor: Kazuyuki Fujita, Dr.
>3URILOH@
Yoshifumi Kitamura: Since 2010, he has
Transformable tabletop (left) and Redirected jumping in VR (right)
been Professor in the Research Institute ofElectrical Communication, Tohoku University. Prior to arriving at Tohoku, he was an Associate
Professor at Graduate School of Engineering, and Graduate School of Information Science andTechnology, Osaka University. While working at ATR Communication Systems Research Laboratories,
he focused on sophisticated user interfaces in virtual environments. His first formal appointment wasin the Information Systems Research Center, Canon Inc., where he was involved in research on
artificial intelligence, image processing, computer vision, and 3D data processing. His formal
education was obtained at Osaka University, B.Sc (1985); M.Sc. (1987); and Ph.D. (1996).
Kazuki Takashima: Dr. Takashima received his Ph.D from the Graduate School of Information Scienceand Technology at Osaka University in 2008. He then worked as an assistant professor at Osaka
University, and joined Tohoku University's Research Institute of Electrical Communication as an
assistant professor in 2011. Dr. Takashima was promoted to the rank of associate processor at Tohoku
University in 2018.

>3DSHUV@[1] Yoshiki Kudo, Kazuki Takashima, Morten Fjeld and Yoshifumi Kitamura, AdapTable:
Extending Reach over Large Tabletops through Flexible Multi-Display Configuration, Proc. of
ACM Conference on Interactive Surfaces and Spaces, 213-225, November 2018.
[2] Shotaro Ichikawa, Kazuki Takashima, Anthony Tang and Yoshifumi Kitamura, VR Safari
Park: A Concept-based World Building Interface using Blocks and World Tree, Proc. of ACM
Symposium on Virtual Reality Software and Technology, 6, 5page, November 2018.
[3] Daigo Hayashi, Kazuyuki Fujita, Kazuki Takashima, Robert W. Lindeman and Yoshifumi
Kitamura, Redirected Jumping: Imperceptibly Manipulating Jump Motions in Virtual Reality,
Proc. of IEEE Conference on Virtual Reality and 3D User Interfaces, 10 pages, 2019.
32

Contact to Professor Yoshifumi KITAMURA : kitamura@riec.tohoku.ac.jp

2018
5HDOZRUOG&RPSXWLQJ

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Real-world ComputingAkio Ishiguro, Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
Living organisms exhibit surprisingly adaptive and versatile behavior in real time under
unpredictable and unstructured real world constraints. Such behaviors are achieved via
spatiotemporal coordination of a significantly large number of bodily degrees of freedom. Clarifying
these remarkable abilities enable us to understand life-like complex adaptive systems as well as toconstruct truly intelligent artificial systems. A prominent concept for addressing this issue is“autonomous decentralized control”, in which non-trivial macroscopic functionalities are emerged via
spatiotemporal coordination among vast amount of autonomous components that cannot be explained
solely in terms of individual functionality. We study the design principle of autonomous decentralized
systems that exhibit life-like resilient behaviors from the viewpoints of robotics, mathematics,
nonlinear science, and physics.

Fig.1: Quadruped robot thatexhibits versatile high-speed
gaits

Fig.2: Ophiuroid nerve
ring that generates
adaptiveinter-armcoordination

Fig.3: Sea roaches-like robot that exhibits
body bending to achieve faster locomotion
speed.

>6WDII@Professor: Akio ISHIGURO, Dr.
Associate Professor: Takeshi KANO, Dr.
Assistant Professor: Akira FUKUHARA, Dr.
>3URILOH@
Akio ISHIGURO received B.E., M.E., and Ph.D. degrees from Nagoya University in 1987, 1989, and1991, respectively. From 1991 to 1997, he was with Nagoya University as an assistant professor. From
May 1997 to 2006, he was an associate professor, Nagoya University. From 2006 to 2011, he was aprofessor of the Graduate School of Engineering, Tohoku University. Since April 2011, he has been aprofessor of Research Institute of Electrical Communication, Tohoku University. His main researchinterests are in bio-inspired robotics, nonlinear dynamics. He received 2003 IROS Best Paper Award
Nomination Finalist, 2004 IROS Best Paper Award, 2008 Ig Nobel Prize (Cognitive Science Prize),2009 IROS Best Paper Award Nomination Finalist, 2011 IEEE/RSJ NTF Award Finalist forEntertainment Robots and Systems, 2012 IEEE/RSJ JCTF Novel Technology Paper Award for
Amusement Culture Finalist, Living Machines 2012 Best Paper Award.
>3DSHUV@
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Contact to Professor Akio ISHIGURO : ishiguro@riec.tohoku.ac.jp

33

2018
1DQR%LR+\EULG0ROHFXODU'HYLFHV'HYHORSPHQWRIQRYHOELRGHYLFHVWKURXJKWKHFRPELQDWLRQRIQDQRWHFKQRORJ\DQGELRPDWHULDOV
Nano-Bio Hybrid Molecular Devices: Ayumi Hirano-Iwata, Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
Our research activities focus on development of sophisticatedmolecular-scale devices through the combination ofwell-established microfabrication techniques and various
soft materials, such as biomaterials and organic materials.
㸯㸬 6WDELOH OLSLG ELOD\HUV LQ PLFURIDEULFDWHG FKLSVKDYLQJDPSKLSKRELFVXUIDFHVMechanically stable lipid bilayers were formed on
microfabricated silicon chips that had amphiphobic surfaces
through surface modification. We also succeeded inFormation of stable lipid bilayers onreconstitution of cardiac hERG channel proteins into theamphiphobic septa.
lipid bilayers and recording their activities at thesingle-channel level. [Langmuir, 34, 5615-5622 (2018).]
㸰㸬 5HFRQVWUXFWLRQRIDUWLILFLDOQHXURQDOQHWZRUNV 
Surface engineering offers an effective solution to bridge
the in vivo-in vitro gap in neuroscience. Our recent work
showed that by implementing modular organization to
cultured cortical neurons, their network can be tuned togenerate much richer in dynamics both spatially andEngineered neuronal networks withtemporally. [Sci. Adv. 4, eaau4914 (2018).]
modular organization.
㸱㸬 1RYHO GHYLFHV EDVHG RQ D K\EULG RI DSKRVSKROLSLGELOD\HUDQGRUJDQLFVHPLFRQGXFWRUPROHFXOHVA hybrid membrane was formed by doping a lipid bilayer with organic semiconductor molecules.
Using these hybrid membranes, a photo-sensing device was formed on micro-fabricated silicon chips.
It was demonstrated that the device shows high performances owing to the ultra-thin thickness of
the lipid bilayer structure. [J. Electroanal. Chem., 832, 55-58 (2019).]>6WDII@Professor: Ayumi Hirano-Iwata, Dr.
>3URILOH@
Ayumi Hirano-Iwata 2016 – RIEC, Tohoku University, Japan, Professor, Doctorate of Science.
Memberships: The Japan Society of Applied Physics, The Surface Science Society of Japan.
>3DSHUV@
[1]

[2]
[3]

34

D. Yamaura, D. Tadaki, S. Araki, M. Yoshida, K. Arata, T. Ohori, K. Ishibashi, M. Kato, T. Ma, R.
Miyata, H. Yamamoto, R. Tero, M. Sakuraba, T. Ogino, M. Niwano, A. Hirano-Iwata, “Amphiphobic
septa enhance the mechanical stability of free-standing bilayer lipid membranes”, Langmuir, 34,
5615-5622 (2018).
H. Yamamoto, S. Moriya, K. Ide, T. Hayakawa, H. Akima, S. Sato, S. Kubota, T. Tanii, M. Niwano, S.
Teller, J. Soriano, A. Hirano-Iwata, “Impact of modular organization on dynamical richness incortical networks”, Sci. Adv., 4, eaau4914 (2018).
K. Kanomata, T. Deguchi, T. Ma, T. Haseyama, M. Miura, D. Yamaura, D. Tadaki, M. Niwano, A.
Hirano-Iwata, F. Hirose, “Photomodulation of electrical conductivity of a PCBM-doped free-standing
lipid bilayer in buffer solution”, J. Electroanal. Chem., 832, 55-58 (2019).

Contact to Professor Ayumi HIRANO : ayumi.hirano.a5@tohoku.ac.jp

2018


0XOWLPRGDO&RJQLWLYH6\VWHP'LYLVLRQ 

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ůĂƐƐŝĐĂůŽƚƚŽŵͲhƉŵŽĚĞůĨŽƌƉĞƌĐĞƉƚŝŽŶŽĨĨŽŽĚdŽƉͲĚŽǁŶŵŽĚĞůĨŽƌƉĞƌĐĞƉƚŝŽŶŽĨĨŽŽĚŝŶƚŚŝƐƌĞƐĞĂƌĐŚ


)LJ7KHPRGHODGDSWHGLQWKLVUHVHDUFKLVVKRZQLQULJKWSDQHO7KHSHUFHSWLRQRIIRRGLVEDVHGRQLQWHUDFWLYHWRSGRZQSURFHVVLQJRIPXOWLPRGDOVHQVRU\LQSXWVQRWRQVLPSOHLQWHJUDWLRQRIVHQVRU\LQSXWV
Nobuyuki Sakai, Dr. Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
In this year, we have done some experiments about the followings; the effect of odors of fabricsofteners on perception and estimation of female faces, the effects of visually presented brandinformation on perception of coffee flavor, the interactions between color and flavor in foodrecognition, etc. We have also started the cognitive studies about interaction of the intention and/or
the cognition for the actions with the perception.

 >6WDII@
Professor 㸸 Nobuyuki Sakai, Dr.
Assistant Professor : Kosuke Yamamoto
 >3URILOH@
Nobuyuki Sakai graduated from Graduate School of Human Sciences, Osaka University in 1998.
Then he worked at Hiroshima Shudo University and National Institute of Advanced and Industrial
Science and Technology (AIST) , Kobe Shoin Women’s University. He, then, moved to Sendai in
October 2011, and he is a professor of Graduate School of Arts and Letters of Tohoku University
now.
>3DSHUV@>@  7DNX\D2QXPD+LURDNL0DUX\DPDDQG1REX\XNL6DNDL(QKDQFHPHQWRI6DOWLQHVV3HUFHSWLRQE\0RQRVRGLXP*OXWDPDWH7DVWHDQG6R\6DXFH2GRU$1HDU,QIUDUHG6SHFWURVFRS\6WXG\&KHPLFDO6HQVHV9ROXPH,VVXH 
3DJHV±  >@  7DNX\D2QXPDDQG1REX\XNL6DNDL)DEULF6RIWHQHU)UDJUDQFHV0RGXODWHWKH,PSUHVVLRQ7RZDUG)HPDOH)DFHV
DQG)URQWDO%UDLQ$FWLYLW\-DSDQHVH3V\FKRORJLFDO5HVHDUFK    >@  +LURVKL 6KLEDWD 7DNX\D 2QXPD <DVXKLUR 7DNHVKLPD<XZDGHH 3HQZDQQDNXO DQG 1REX\XNL 6DNDL 5ROH RI WKH5LJKW'RUVRODWHUDO3UHIURQWDO&RUWH[LQWKH&RJQLWLYH3URFHVVRI0DWFKLQJ%HWZHHQ$FWLRQDQG9LVXDO)HHGEDFN -DSDQHVH3V\FKRORJLFDO5HVHDUFK    Contact to Professor Nobuyuki SAKAI : nob_sakai@tohoku.ac.jp

35

2018

5HVHDUFK7DUJHWVDQG$FWLYLWLHVRI6\VWHPV 6RIWZDUH'LYLVLRQThe goal of System & Software Division is to realize ideal ubiquitous environment where
everyone can freely communicate in real-time with anyone, anywhere, and at any timethrough any kind of information. With the reorganization of RIEC in FY2016, our division has
the following seven research fields related to such high-level ubiquitous systems, softwareand contents by integrating computer and communication:
Ɇ Software Construction: Reliable and high-level software.
Ɇ Computing Information Theory: Fundamental theory of new software.
Ɇ Communication Network: Symbiotic computing.
Ɇ Environmentally Conscious Secure Information System: Embedded system securityɆ Soft Computing Integrated System: Brainmorphic hardware.
Ɇ New Paradigm VLSI System: Post-binary CMOS-based VLSI computing.
Ɇ Structure of Information Society (Visitor Section).
An overview of research results from Apr. 2018 to Mar. 2019 of these fields except the visitor
section is described in this section.

 6RIWZDUH&RQVWUXFWLRQ 
We research on theoretical foundations for flexible and reliable programming languages,
and develop SML#, a new programming language in the ML family embodying our research
results. The major result of the 2018 academic year is the development of a novel type theoryfor "finitary polymorphism". We have defined a predicative second-order lambda calculus
where each type abstraction is explicitly constrained to a finite type universe, and establishes
the type soundness with respect to a type-passing operational semantics. Based on this novel
type theory, we have developed an optimization method for compiling polymorphic languages
and have implemented the method in the SML# compiler.

 &RPSXWLQJ,QIRUPDWLRQ7KHRU\We proceed with studying a few models of computation and formal language theory which
can be theoretical foundations for efficient development and static verification of software.
First, we have implemented an algorithm for checking functional equivalence of treetransducers that is a formal model of recursive transformation over tree structured data andexamined its practicability. Second, we have partially unraveled an interesting property of
the function composition combinator in combinatory logic that is a classical model ofcomputation. Additionally, we have proved an important theorem which verifies a variant ofpumping lemmas to recognize a limitation of the expressiveness of higher-order languages.

36

2018
 &RPPXQLFDWLRQ1HWZRUN6\VWHPVWe promoted the following research on cooperative distributed knowledge processing
supporting various human activities and its application. In the research on intelligent
network, we design the cooperation method of network administrators and a management
system based on the concept of human-agent collectives, and confirmed effectiveness of the
proposed method through experiment using an experiment system. Moreover, we proposed acollaboration method of a human and an information system and implemented an experiment
system in the field of education and training. Using the system, we verified usefulness of the
proposed method. In the research of the agent based IoT (AIoT) and its application, we
continued the experimentation of the construction method of various AIoT devices based on
the agentification method of IoT devices. Next, we implemented an experimental system of
the evacuation guidance at disaster using AIoT drones, and verified effectiveness of the
proposed system by the field experiment using the system.

 (QYLURQPHQWDOO\&RQVFLRXV6HFXUH,QIRUPDWLRQ6\VWHP
We are studying future secure information communication systems from theories toimplementation technologies for constructing advanced information and communication
infrastructures in a safe and secure manner. In this year, we has succeeded in developing theworld’s lowest latency tamper-resistant PRINCE cipher hardware, and also developed a new
efficient method for improving stability and uniformity of hardware-oriented physicallyunclonable functions used for individual identification and secret key generation.

We havealso developed a method for detecting malicious hardware (i.e., Hardware Trojan) that can beinserted into embedded systems, and developed a hardware function evaluation technology
based on the developed method.  6RIW&RPSXWLQJ,QWHJUDWHG6\VWHP
We are working on a novel high-performance, highly-efficient, flexible, and robust
brain-inspired brainmorphic computer hardware system, in particular, through physicalcomplex-networked dynamical process using an analog VLSI as a core component. Results ofthis year include the followings. (i) We analyzed performance and characteristics of thechaotic reservoir network composed of chaotic neurons, which we proposed last year, throughchaotic time-series predictions. (ii) For large-scale chaotic optimization hardware, we
designed and fabricated a switched-current chaotic neural network integrated circuit chipwith TSMC 65 nm CMOS process. (iii) We studied a fast hardware implementation scheme of
the random number generator based on the augmented Lorenz map.

37

2018
 1HZ3DUDGLJP9/6,6\VWHPOur research activity is to solve the several limitations such as power dissipation,
performance and reliability due to the present binary-CMOS-based VLSI computing. The key
approach to breaking through such limitations is primarily the following two ways: thelogic-in-memory architecture based on nonvolatile logic, and the brainware LSI (BLSI)
computing, which would open up a novel VLSI chip paradigm, called a “new-paradigm VLSI
system.” In this year, we have firstly succeeded (1) to design and implement the magnetic
tunnel junction (MTJ)-based nonvolatile microcontroller unit (MCU) for IoT (Internet ofThings) sensor node applications.

The use of MTJ-based storage elements, embedded

nonvolatile field programmable gate array (FPGA), and power-gating technique makes it
possible to greatly reduce wasted power. As a result, the proposed MCU has achieved theaverage power dissipation of 50 ǍW or less with performing the operation frequency of200MHz.

We have also (2) designed and evaluate a brain-inspired vision processor using

stochastic computing for object-recognition applications. In case of HMAX (one of thebrain-inspired object-recognition applications), its power dissipation has become 5 percent orless (1/20 or less) of that in a conventional binary-logic-based hardware realization, withmaintaining the same operation accuracy and throughput as the conventional one. This-year
research results including the above topics have reported 9 academic journal papers such as
IEEE Trans. VLSI Systems, 9 peer-reviewed international conference papers, and 6 invited
talks (4 invited talks in international conferences).

38

2018
6RIWZDUH&RQVWUXFWLRQ/DERUDWRU\)RXQGDWLRQVIRU'HYHORSLQJ+LJKOHYHODQG5HOLDEOH3URJUDPPLQJ/DQJXDJHV
Software Construction Atsushi Ohori, Professor
Reliable Software Development Katsuhiro Ueno, Associate Professor
7\SH,QIHUHQFH>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
Today's software systems are becoming more and more complicated㻿㻹㻸㻏㻌㻼㼞㼛㼓㼞㼍㼙due to the need of integrating various computation resources available
in the Internet. A key to control the complexity and to enhance thereliability of such a system is to develop a high-level programming㼀㼥㼜㼑㻙㼟㼍㼒㼑㻌㻲㻲㻵㻼㼛㼘㼥㼙㼛㼞㼜㼔㼕㼏㻌㻾㼑㼏㼛㼞㼐㼟
language that can directly represent various resources andautomatically detect potential inconsistencies among the components㻻㻿㻘㻌㻯㻌㻸㼕㼎㼞㼍㼞㼕㼑㼟in a system. Based on this general observation, our research aims at㻰㼍㼠㼍㼎㼍㼟㼑㼟
establishing both firm theoretical basis and implementation method
for flexible yet reliable programming languages for advanced
60/DKLJKOHYHODQGUHOLDEOHODQJXDJH
applications. Research topics on theoretical foundations include:
logical foundations for compilation, and type-directed compilation for polymorphic languages. We arealso developing a new practical ML-style programming language, SML#, which embodies some of ourrecent results such as record polymorphism, direct C interface and seamless integration of SQL.
The major result of the 2018 academic year is the development of a novel type theory for finitarypolymorphism as a foundation for optimizing polymorphic language compilers. We have defined a
predicative second-order lambda calculus where each type abstraction is explicitly constrained to a
finite type universe, and established the type soundness with respect to a type-passing operationalsemantics. Based on this novel type theory, we have developed an optimization method for compilingpolymorphic languages and have implemented the method in the SML# compiler.
>6WDII@Professor 㸸 Atsushi Ohori, Ph.D.
Assistant Professor 㸸 Katsuhiro Ueno, Dr.
>3URILOH@
Atsushi Ohori. He was born in 1957. He received his BA degree in Philosophy from University of Tokyo,
1981; received his Ph.D. degree in Computer and Information Science from University of Pennsylvania,
1989. He worked for Oki Electric Industry from 1981 until 1993. In 1993, he joined Research Institutefor Mathematical Sciences, Kyoto University as an Associate Professor. In 2000, he joined Japan
Advanced Institute of Science and Technology as a Professor. In 2005, he moved to RIEC, Tohoku
University as a Professor.
Katsuhiro Ueno. He was born in 1981. He received the Doctor of Philosophy (Information Sciences)
degree from Tohoku University, 2009. He joined Research Institute of Electrical Communication(RIEC), Tohoku University as an assistant professor in 2009. Since 2016, he has been an associate
professor at the same institute.

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3URFHHGLQJVRIWKH,QWHUQDWLRQDO&RQIHUHQFHRQ)XQFWLRQDO3URJUDPPLQJ ,&)3  '2, >@.D]XNL2QR.DWVXKLUR8HQR$WVXVKL2KRUL,PSOHPHQWDWLRQ0HWKRGRI1DWLYH&RGH/HYHO'HEXJJLQJ(QYLURQPHQW
IRU60/ LQ-DSDQHVH ,QIRUPDWLRQ3URFHVVLQJ6RFLHW\RI-DSDQ7UDQVDFWLRQVRQ3URJUDPPLQJ 352   
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Contact to Professor Atsushi OHORI : ohori@riec.tohoku.ac.jp

39

2018


&RPSXWLQJ,QIRUPDWLRQ7KHRU\)LOOLQJWKH*DSEHWZHHQ+XPDQVDQG&RPSXWHUVComputing Information Theory
Keisuke Nakano, Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
Notwithstanding that programming is one of themost typical methods for a human to communicate
with a computer, there is a significant gap between
programs that are recognizable for humans and thosethat are efficiently executed by computers. Programs
described as humans think are highly readable but
are not always efficient. On the other hand, programs
described with carefully considering the behavior ofcomputers show much better performance in timeand space but are very complicated and hardly
maintainable. Our ultimate goal is to fill the gap between humans and computers in programming.
More specifically, our research topics include program transformation and program verification.
Program transformation is to automatically derive well-tuned and efficient programs fromhuman-readable ones; Program verification is to statically (that is, without running) check ifhuman-written but well-tuned complicated programs behave as the programmers expect for any
input. To this end, we deeply study the theory of formal tree languages, such as tree automata andtree transducers, which has a close relationship with the program transformation and verification.
Besides that, we are working on formalizing relevant results in mathematics and theoreticalcomputer science on a proof assistant to make our theory more robust.
>6WDII@Professor 㸸 Keisuke Nakano, Dr.
Assistant Professor 㸸 Kazuyuki Asada, Dr.
>3URILOH@
Keisuke Nakano received his Ph.D. from Kyoto University in 2006. He worked as a researcher at
the University of Tokyo from 2003 to 2008. He has been an assistant professor from 2008 to 2012
and an associate professor from 2012 to 2018 at the University of Electro-Communications. Since
2018, he has been a professor at the Research Institute of Electrical Communication. His researchinterests include formal language theory, programming language theory, and functional
programming. He is a member of ACM, JSSST, and IPSJ.
>3DSHUV@
[1] Mirai Ikebuchi and Keisuke. Nakano, “On Repetitive Application of B-terms”, Third International
Conference on Formal Structures for Computation and Deduction (FSCD 2018), Oxford, UK, July 2018.
[2] Yuta Takahashi and Keisuke Nakano, ‘‘Evaluating an algorithm deciding equivalence of deterministic top-down tree-to-string transducers (in Japanese)’’, Computer Software, Vol. 35, No. 4, pp. 52-71,
November 2018.
[3] Takeshi Tsukada, Kazuyuki Asada, and C.-H. Luke Ong, “Species, Profunctors and Taylor Expansion Weighted by SMCC ɔA Unified Framework for Modelling Nondeterministic, Probabilistic andQuantum Programsɔ”, 33rd Annual ACM/IEEE Symposium on Logic in Computer Science (LICS 2018),
pp. 889-898, Oxford, UK, 2018.


40

Contact to Professor Keisuke NAKANO : ksk@riec.tohoku.ac.jp

2018


&RPPXQLFDWLRQ1HWZRUN6\VWHPV6XSSRUWIRU&RRSHUDWLRQDQG&RPPXQLFDWLRQEHWZHHQ+XPDQDQG6\VWHPVIntelligent Communication: Tetsuo Kinoshita, Professor
Intelligent Network: Gen Kitagata, Associate Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
In this year, the following studies had been done. (a) Agent-based IoT technology by which agents
control several kinds of IoT devices and make the devices autonomously cooperates. (b) Agent-based
network management system which supports novice network managers by automaticallyconstructing data collection, analysis and visualization tools, and also facilitates collaboration
among agents and managers. (c) Memory recall support system based on active acquisition andaccumulation of memory fragments.
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㻰㼍㼠㼍㻌㼜㼞㼛㼏㼑㼟㼟㼕㼚㼓㻌㼠㼛㼛㼘㼟㼡㼟㼑㼐㻌㼎㼥㻌㼍㼓㼑㼚㼠㼟(YDFXDWLRQ*XLGDQFH6XSSRUW EDVHGRQ$JHQWEDVHG,R7WHFKQRORJ\$JHQWEDVHGVPDUWGDWDSURYLVLRQLQJPHFKDQLVP>6WDII@Professor㸸 Tetsuo Kinoshita, Dr.
Associate Professor㸸 Gen Kitagata, Dr.
Assistant Professor㸸 Hideyuki Takahashi, Dr.
Assistant Professor㸸 Kazuto Sasai, Dr.
>3URILOH@
Tetsuo Kinoshita received his B.E. degree in electronic engineering from Ibaraki University, Japan,
in 1977, and M.E. and Dr.Eng. degrees in information engineering from Tohoku University, Japan,
in 1979 and 1993, respectively. He received the IPSJ Research Award, the IPSJ Best Paper Awardand the IEICE Achievement Award in 1989, 1997 and 2001. Dr. Kinoshita is a member of IEEE
(SM), ACM, AAAI, IEICE (Fellow), IPSJ (Fellow) and JSAI.

Gen Kitagata is an associate professor of the Research Institute of Electrical Communication of
Tohoku University, Japan. He received a doctoral degree from the Graduate School of Information
Sciences, Tohoku University in 2002. His research interests include agent-based computing,intelligent networking, and resilient networking. He is a member of IEICE, IPSJ.

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Contact to Associate Professor Gen KITAGATA : minatsu@riec.tohoku.ac.jp

41

2018


(QYLURQPHQWDOO\&RQVFLRXV6HFXUH,QIRUPDWLRQ6\VWHP$GYDQFHGLQIRUPDWLRQVHFXULW\WHFKQRORJ\
Environmentally Conscious Secure Information System, Naofumi Homma, Professor >5HVHDUFK7DUJHWDQG$FWLYLWLHV@
We are studying future secure information
communication
systemsfromtheories
to
implementation
technologies
forconstructing
advanced
information
andcommunication
infrastructures in a safe and secure manner. In thisyear, we have discovered practical attacks oncommonly used cryptographic algorithms such as
AES-GCM and elliptic curve digital signature withexperimental validation (Fig. 1) and developed
efficient countermeasures against proposed attack. We
have also developed a new methodology for detecting
malicious hardware Trojans, which are stealthily
Fig. 1: Experiment for security evaluation
inserted to cryptographic hardware during itsof cryptographic hardware
design/fabrication. In addition, we have developed amethod for efficiently extracting hardware-intrinsic IDs from physically unclonable functions(PUFs), and developed a secure hardware authentication system based on PUF.

>6WDII@Professor: Naofumi Homma, Ph. D
Assistant Professor: Rei Ueno, Ph. D>3URILOH@
Naofumi Homma received the PhD degrees in information sciences from Tohoku University, Sendai,
Japan, in 2001. Since 2016, he has been a Professor in the Research Institute of ElectricalCommunication, Tohoku University. In 2009-2010 and 2016-2017, he was a visiting professor at
Telecom ParisTech, Paris, France. He received a number of awards including the IACR CHES Best
Paper Award in 2014, the JSPS Prize in 2018, and the German Innovation Award in 2018.
Rei Ueno received the PhD degrees in information sciences from Tohoku University, Sendai, Japan,
in 2018. Since 2018, he has been an Assistant Professor in the Research Institute of ElectricalCommunication, Tohoku University. He has also joined a JST PRESTO project as a researcher since
2018. He received the Kenneth C. Smith Early Career Award in Microelectronics in 2017.

>3DSHUV@>@ .RVXNH .RLZD et al ³(0 6HFXULW\ $QDO\VLV RI &RPSDFW (&'6$ +DUGZDUH´ Joint IEEE EMC & APEMC
Symposium5HYLHZHG$EVWUDFWSS0D\
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42

Contact to Professor Naofumi HOMMA : homma@riec.tohoku.ac.jp

2018


6RIW&RPSXWLQJ,QWHJUDWHG6\VWHP%UDLQPRUSKLF&RPSXWLQJ+DUGZDUH6\VWHPSoft Computing Integrated System
Yoshihiko Horio, Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
We are working on a novel high-performance, highly-efficient,flexible, and robust brain-inspired “brainmorphic” computer
hardware system. In particular, we focus on an information
processing through physical complex-networked dynamical
process, and its implementation as a computational hardware
system using an analog VLSI as a core component. Toward thefinal goal, we are developing integrated circuit and device
technologies suitable for the brainmorphic computer systems,
such as VLSI technologies for high-dimensional chaotic networks
and large-scale complex systems, VLSI circuits and architectures
A dynamics/algorithm
for ultra-low-power asynchronous neural network systems, andsub-conscious/conscious
compact and low-power spintronics devices/circuits for adaptive
hybrid computer system.
non-volatile synaptic connections. At the same time, we aredeveloping a massively-parallel brainmorphic (brainware) architecture, which is very muchdifferent from that of the conventional digital computers. We further intend to realize an
autonomous brain-inspired computer with a sense of self and consciousness based on a complex
network with dynamic change in spatiotemporal network state and structure.
>6WDII@Professor 㸸 Yoshihiko Horio, Ph.D.
>3URILOH@
Yoshihiko Horio received the B.E., M.E., and Ph.D. degrees in electrical engineering from Keio
University, Japan, in 1982, 1984, and 1987, respectively. He is currently a Professor with the
Research Institute of Electrical Communication, Tohoku University, Japan. From 1987 to 2016, he
was with Department of Electronic Engineering, Tokyo Denki University, Japan, being a Professor
from 2000. From April 1992 to March 1994, he was a Visiting Professor at Center for
Telecommunications Research, Columbia University, U.S.A. His current research interests are in
the area of neuromorphic and brainmorphic hardware systems based on complex physical dynamics,
mixed analog/digital VLSI circuit design, and high-order brain-inspired VLSI systems withconsciousness, self, and embodiment. Dr. Horio received the 3rd Hiroshi Ando Memorial Young
Engineer Award (1990), the IEEE Myril B. Reed Best Paper Award (1991), NCSP Best Paper
Awards (2005, 2007, 2008, 2013), IEEE NDES Best Paper Awards (2005, 2007), ISCS-ISIS Best
Paper Award (2008), IEICE NOLTA Lifetime Achievement Award (2016), and Fellow, IEICE (2018).
 >3DSHUV@>@ < +RULR 1 ,FKLQRVH DQG 0 2JDZD ([SHULPHQWDO YHULILFDWLRQ RI TXDVLSHULRGLFRUELW VWDELOL]DWLRQ XVLQJ D
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Contact to Professor Yoshihiko HORIO : horio@riec.tohoku.ac.jp

43

2018
1HZ3DUDGLJP9/6,6\VWHP5HVHDUFK*URXS

5HDOL]DWLRQRID1HZ3DUDGLJP9/6,&RPSXWLQJ:RUOGNew Paradigm VLSI System: Takahiro Hanyu, Professor
New Paradigm VLSI Design: Masanori Natsui, Associate Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
Rapid progress in recent deep submicron regime has led the capability to realize giga-scaled
embedded systems on a chip (SoC), while performance degradation of SoCs due to wiring complexity,
power dissipation and device-characteristic variation are increasingly getting serious problems in the
recent Very Large Scale Integration (VLSI) chip. Our research activity is to solve the above problems
primarily by the following two ways: the logic-in-memory architecture based on nonvolatile logic, andthe brainware LSI (BLSI) computing, which would open up a novel VLSI chip paradigm,called a“new-paradigm VLSI system.”This year, we have succeeded to design and implement the magnetic tunnel junction (MTJ)-based
nonvolatile microcontroller unit for Internet of Things (IoT) sensor node applications (Fig. 1), theMTJ-based embedded nonvolatile field programmable gate array (FPGA) that accelerates theoperations of the microprocessor unit (Fig. 2), and the low-power brain-inspired vision processor using
stochastic computing for object-recognition applications.
>6WDII@*Affiliation: Frontier Research Institute for Interdisciplinary Sciences (Prof. Hanyu is the mentor of them.)
Professor 㸸 Takahiro Hanyu, Dr.
Associate Professor 㸸 Masanori Natsui, Dr.
Assistant Professor 㸸 Naoya Onizawa, Dr.
Assistant Professor 㸸 Daisuke Suzuki, Dr. *>3URILOH@
Takahiro Hanyu received the D.E. degrees in Electronic engineering from Tohoku University, Sendai,
Japan, in 1989. His general research interests include multiple-valued current-mode logic and its
application to high performance and low-power arithmetic VLSIs.
Masanori Natsui received the Ph.D. degrees in information Sciences from Tohoku University, Sendai,
Japan, in 2005. His research interest includes automated circuit design technique, nonvolatile-based
circuit architecture and its application, and design of high speed low-power integrated circuits.

>3DSHUV@
[1] M. Natsui, et al., ISSCC2019, pp. 202-203, Feb. 2019.
[2] N. Onizawa, et al., IEEE JETCAS, Vol.8, No. 3, pp. 444-453, Sep. 2018.
[3] N. Onizawa, et al., Microelectronics Journal, Vol.82, pp.46-61, Dec. 2018.


44

Contact to Professor Takahiro HANYU : hanyu@riec.tohoku.ac.jp

2018/DERUDWRU\IRU1DQRHOHFWURQLFVDQG6SLQWURQLFVThe Laboratory for Nanoelectronics and Spintronics of the Research Institute of ElectricalCommunication was established on April of 2004. Its purpose is to develop and establish thescience and technology of nanoelectronics and spintronics for information technology.
Utilizing the facilities installed in the Nanoelectronics-and-Spintronics building and undercollaboration between the RIEC and electro-related laboratories of the Graduate Schools ofEngineering, Information Sciences, Biomedical Engineering, Tohoku University, R&D of
nanotechnologies of materials and devices in Nanoelectronics and Spintronics will be
continued extensively. Furthermore, nation-wide and world-wide collaboration research
projects will be conducted to build a systematic database in the electrical communication
research area.
The Laboratory for Nanoelectronics and Spintronics mainly consists of research groups
which promote following sections: Nano-Integration Devices and Processing, Spintronics andNano-Bio Hybrid Molecular Devices; together with the project office of the Center for
Innovative Integrated Electronic Systems, and the groups of Ultra-Broadband Signal
Processing,Soft Computing Integrated System, and Quantum Devices. These groups

cooperatively carry out the research aimed at establishing a world-wide COE in the researcharea of nanoelectronics and spintronics

45

2018
㻌 Highlights of Research Activities in 2018
Nano Integration‫ ە‬Nano-Integration Devices and Processing (S. Sato and M. Sakuraba)
(1) Toward the development of quantum adiabatic computation hardware inspired by brain
computation, we studied implementation using superconducting charge qubits. We
successfully confirmed by numerical simulations that associative memory function can beobtained by learning.
(2) ,Q WKH GHSWK SURILOHV RI 3GRSHG RU %GRSHG 6L HSLWD[LDO ILOPV JURZQ E\ XVLQJ ORZHQHUJ\ (&5
SODVPD &9' ZLWKRXW VXEVWUDWH KHDWLQJ JUDGXDO LQFUHDVLQJ WHQGHQF\ WRZDUGV VXUIDFH ZDV REVHUYHG$GGLWLRQDOO\LPSURYHPHQWIRUHOHFWULFDODFWLYDWLRQRI%DWRPVLQWKHKHDYLO\GRSHGILOPXSWRDERYH
KDVEHHQGHPRQVWUDWHG
  Toward the development RI QHXURPRUSKLF FRPSXWDWLRQ KDUGZDUH ZH GHVLJQHG D QHXURQ 026
DQDORJ FLUFXLW WKDW FDQ UHSURGXFH YDULRXV QHXURQ SXOVHV :H FRQILUPHG E\ 63,&( VLPXODWLRQV WKDW WKHFLUFXLW ZKLFK LV FRPSRVHG RI DERXW  026 WUDQVLVWRUV DQG RSHUDWHV LQ WKH VWURQJ LQYHUVLRQ UHJLRQRSHUDWHVVXFFHVVIXOO\ZLWKRQO\DERXWP:SRZHUFRQVXPSWLRQ 7RVWXG\LQIOXHQFHRIWKHVWUXFWXUHRIQHXURQDOFLUFXLWU\DQGWKHEDODQFHRIH[FLWDWRU\DQGLQKLELWRU\FRQQHFWLRQV RQ VSDWLRWHPSRUDO G\QDPLFV ZH LQYHVWLJDWHG WKH DFWLYLW\ RI QHXURQDO FLUFXLWU\ KDYLQJ D
PRGXODU VWUXFWXUH ,W KDV EHHQ FODULILHG TXDQWLWDWLYHO\ WKDW G\QDPLFDO FRPSOH[LW\ LV PD[LPL]HG ZKHQ WKHPRGXODUQHWZRUNFRQWDLQVDERXWLQKLELWRU\FRQQHFWLRQV‫ ە‬Soft Computing Integrated System (Y. Horio)
(1) We examined performance and characteristic of the chaotic reservoir network composedof chaotic neurons, which we proposed last year, through chaotic time-series predictions.
(2) For large-scale chaotic optimization hardware, we designed and fabricated aswitched-current chaotic neural network integrated circuit chip with TSMC 65 nm CMOS
processes.
(3) We conducted basic study on the spiking neural network hardware using spin-orbit
torque neuron and STDP synaptic devices.
(4) We investigated fast hardware implementation of a random number generator based on
the augmented Lorenz map for post quantum computer stream cryptography.

Spintronics and Information Technology‫ ە‬Spintronics (S. Fukami)
Our research activities focus on realizing low-power functional spintronic devices. The
outcomes in the last fiscal year are as follows: (1) Revealing electric field effect on the coneangle of easy-cone state that appears as a result of higher-order anisotropy term in
CoFeB/MgO stacks by means of ferromagnetic resonance, (2) achievement of world’s highest
spin-orbit torque generation efficiency in high-resistivity-W/CoFeB/MgO using extended
harmonic Hall technique, (3) finding a non-linear variation of domain period with
46

2018
electric-field application in CoFeB/MgO stacks, which is turned out to originate from thechange in exchange stiffness, (4) investigation of operation performance and reliability ofanalog spin-orbit torque devices that are promising for artificial-neural-network applications,(5) revealing the suitable cap-layer structure for MgO/CoFeB/Ta/CoFeB/MgO stack in termsof interfacial magnetic anisotropy and thermal stability factor, (6) world’s first observation ofmagnetoresistance effect in antiferromagnet/nonmagnetic metallic heterostructure andclarification of underlying dominant mechanism for the magnetoresistance effect, (7)demonstration of high thermal stability factor and current-induced switching in thetemperature range from -50 to 125 oC in 20-nm-wide spin-orbit torque device consisting of
Co/Pt multilayer, (8) establishment of evaluation scheme for device properties of spin-orbit
torque switching devices with in-plane magnetization and clarification of the dependence ofdevice properties on the design of nanomagnet in the device, (9) demonstration of sign changeof Dzyaloshinskii-Moriya interaction with ferromagnetic-layer thickness in W/(Co)FeB/MgO
heterostructures.

‫ ە‬Ultra-Broadband Signal Processing (T. Otsuji and A. Satou) 
The goal of our research is to explore the terahertz frequency range by creating novel
integrated electron devices and circuit systems. III-V- and graphene-based active plasmonic
heterostructures for creating new types of terahertz lasers and ultrafast transistors aremajor concerns.

By making full use of these world-leading device/circuit technologies, weare developing future ultra-broadband wireless communication systems as well as
spectroscopic/imaging systems for safety and security. The followings are the majorachievements in 2017FSY.
1. Creation of graphene-based current-injection terahertz lasers
Graphene, a monolayer sheet of honeycomb carbon crystal, exhibits unique carriertransport properties owing to the massless and gapless energy spectra, which is expected tobreak through the limit on conventional device operating speed/frequency performances.
Towards the creation of novel current-injection graphene THz laser-transistors, wedeveloped a graphene laser-transistor featured with our original asymmetric dual-grating
gates demonstrating coherent amplification of THz radiation with the maximal gain of 9%at room temperature promoted by graphene plasmon instabilities driven by dc-channel
current flow.
2. Development of photonics-electronics convergence mixers
To realize the carrier frequency down-conversion from optical to wireless data signals,
which is one of key technologies in future photonics-electronics convergence networks, we
introduced a uni-traveling-carrier photodiode structure into an InGaAs-channel
high-electron-mobility

transistor

andsuccessfully

demonstrated

theenormousenhancement of the gain of the frequency down-conversion from 1.5-μm optical signal tomillimeter-wave signal by more than three orders of magnitude.

47

2018
‫ ە‬Quantum Devices (T. Otsuka) 
We are exploring interesting properties of solid-state nanostructures utilizing precise
and high-speed electric measurement and control techniques. We are also developing
materials and devices utilizing nanostructures. Our research activities in FY 2018 are thefollowing.
(1) We improved the operation of the local electronic probes which can directly access local
electronic states in nanostructures utilizing high-frequency measurement techniques anddata informatics approaches.
(2) We measured real-time changes of local electronic and spin states in a hybrid system
which consists of a semiconductor quantum dot and an electronic reservoir. We revealed thedetail of local dynamics induced by movement of a single electron.
(3) We applied the local measurement techniques to quantum bit experiments. We realized
precise quantum bit operations, conversion between different qubits and multiple quantum
dot operations.

Nano-Bio Hybrid Molecular Devices‫ ە‬Nano-Bio Molecular Devices (A. Hirano-Iwata)
Our research activities focus on development of sophisticated molecular-scale devices
through the combination of well-established microfabrication techniques and various soft
materials, such as biomaterials and organic materials.
1. Stable lipid bilayers in microfabricated chips having amphiphobic surfaces  Mechanically stable lipid bilayers were formed on microfabricated silicon chips that had
amphiphobic surfaces through surface modification. We also succeeded in reconstitution ofcardiac hERG channel proteins into the lipid bilayers and recording their activities at thesingle-channel level.Reconstitution of artificial neuronal networks.
2. Reconstruction of artificial neuronal networks

Surface engineering offers an effective solution to bridge the in vivo-in vitro gap inneuroscience. Our recent work showed that by implementing modular organization to
cultured cortical neurons, their network can be tuned to generate much richer in dynamics
both spatially and temporally.
3. Novel devices based on a hybrid of a phospholipid bilayer and organic semiconductor

molecules
A hybrid membrane was formed by doping a lipid bilayer with organic semiconductor
molecules. Using these hybrid membranes, a photo-sensing device was formed on
micro-fabricated silicon chips. It was demonstrated that the device shows highperformances owing to the ultra-thin thickness of the lipid bilayer structure.

48

2018
5HVHDUFK7DUJHWVDQG$FWLYLWLHVRI/DERUDWRU\IRU%UDLQZDUH6\VWHPV䢢

The Laboratory for Brainware Systems of the Research Institute of Electrical Communication wasestablished in 2004 and renewed in 2014. Its purpose is to contribute to the research and developmentof advanced information science and technology for Brainware systems which realize a seamless fusionof the changeable and complex real world and the cyber space.
We aim at establishing scientific and technological foundations and at exploring human-likebrainware computing applications for Adaptive Cognition and Action Systems Division (Recognition
and Learning Systems Group), Autonomous Decentralized Control Systems Division (Real-World
Computing Group), Brainware LSI Systems Division (New Paradigm VLSI System Group and Soft
Computing Integrated System Group), and Brain Architecture Division. The Laboratory for Brainware
Systems consists of the above four divisions which cooperatively carry out the research. At the sametime, they serve as a laboratory for nation-wide cooperative research in the field of Brainware systems.
The technology developed in the Laboratory is expected to enhance the research carried out in thefour Divisions of the Institute, and the research conducted in the Divisions, in turn, is expected toprovide scientific basis for the information technology developed in the Laboratory.

Physical and Adaptive Hardware Environment

Seamless Fusion of Real Worldand Multi-Modal Computing䞉㻮㼞㼍㼕㼚㻙㻸㼕㼗㼑㻌㻯㼛㼙㼜㼡㼠㼕㼚㼓䠄㻮㼞㼍㼕㼚㻌㻭㼞㼏㼔㼕㼠㼑㼏㼠㼡㼞㼑䠅dŚĞ ƐƚŝŵƵůŝ ĂƌĞ ƉƌĞƐĞŶƚĞĚ͘dŚĞ ƐƚŝŵƵůŝ ƌŽƚĂƚĞ ŝŶ ĐůŽĐŬǁŝƐĞ ĚŝƌĞĐƚŝŽŶ͘䜲䞁䝍䞊䝛䝑䝖 ĨůĂƐŚ ŝƐ ďƌŝĞĨůǇ ƉƌĞƐĞŶƚĞĚ ŽŶ ŽŶĞŽĨ ƚŚĞ ĨŽƵƌ ĚŝƐŬƐ͘dŚĞ ƉĂƌƚŝĐŝƉĂŶƚ
ŝŶĚŝĐĂƚĞƐ ƚŚĞƉĞƌĐĞŝǀĞĚ ŽƌŝĞŶƚĂƚŝŽŶ ŽĨ ƚŚĞ ĂƌƌŽǁ
ǁŚĞŶ ƚŚĞ ĚŝƐŬ ǁĂƐ ĨůĂƐŚĞĚ͘dŝŵĞ

࣭5HDO:RUOG'\QDPLFDO,QWHOOLJHQFH

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DQG,QIRUPDWLRQ*HQHUDWLRQ㸦5HDO:RUOG&RPSXWLQJ㸧㸦5HFRJQLWLRQDQG/HDUQLQJ6\VWHPV㸧ŚĂŽƚŝĐ
EĞƵƌŽͲŚŝƉ^ŽůǀŝŶŐdŝŵĞ΀^ĞĐ͘΁Hardware Environment with Massively Parallel Brain LSIϭϱŽŶǀĞŶƚŝŽŶĂů

ϭϬϱWƌŽƉŽƐĞĚϬϮϬϳϬ^ŝǌĞŽĨYW

࣭%UDLQ/6,%DVHGRQ$QDORJ1HXUR'\QDPLFV࣭6WRFKDVWLFFRPSXWDWLRQIRU%UDLQZDUH /6,V\VWHP

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>5HVHDUFK7DUJHW@
The goal of this facility is to develop fundamental technologies and their applications that willlead the world to the next-generation information system that seamlessly integrates thecyber-physical world and the ever-changing real world. In order to realize this goal, eachlaboratory participating in this facility has set the following individual goals and promotes
research activities as follows:
Real-World Computing Section: The main contributions achieved in 2017 are summarized asfollows: (1) we have proposed a decentralized control scheme for versatile locomotion of snakes; (2)we have developed a brittle star-like robot that can immediately adapt to physical damage; (3) wehave proposed a decentralized control mechanism for the interlimb coordination underlying
hexapod locomotion; (4) we have developed a myriapod robot that can reproduce millipede
locomotion; (5) we have proposed a minimal model for the body-limb coordination in quadruped
locomotion.
Contact to Professor Takahiro HANYU : hanyu@riec.tohoku.ac.jp

49

2018
New Paradigm VLSI System Section: Rapid progress in recent deep submicron regime has led
the capability to realize giga-scaled embedded systems on a chip (SoC), while performancedegradation of SoCs due to wiring complexity, power dissipation and device-characteristic
variation are increasingly getting serious problems in the recent VLSI chip. Our research activity
is to solve the above problems primarily by the following two ways: the use of logic-in-memoryarchitecture based on nonvolatile logic, and the use of asynchronous data-transfer schemes basedon multiple-valued current-mode logic, which would open up a novel VLSI chip paradigm, called a“new-paradigm VLSI system.”
Recognition and Learning Systems Section: Humans can perform various actions based on therecognition of the outside world that is constructed through multiple sensory inputs such as visionand touch, even though they frequently move their own body parts in the environment. Here we
investigate the adaptive-process and functions of the human cognitive system for action throughpsychophysical experiments. On the basis of the experimental evidence, we aim to createcomputational models of the recognition and learning processes in the human brain.
Soft Computing Integrated System Section: We are working on a novel high-performance,
highly-efficient, flexible, and robust brain-inspired brainmorphic computer hardware system, inparticular, through physical complex-networked dynamical process using an analog VLSI as acore component. Toward the final goal, we are developing integrated circuit and device
technologies suitable for the brainmorphic computer systems. We further intend to realize an
autonomous brain-inspired computer with a sense of self and consciousness based on dynamic andcomplex changes in spatiotemporal network state and structure.
>5HVHDUFK$FWLYLWLHV@
Aiming at the seamless integration of the cyber-physical world and the real world, which is thegoal of Laboratory of Brainware Systems, the following research results were obtained. In
particular, the following research results in fiscal year 2018 are an important step towards thegoal as:--Real-World Computing Section gets the award by presenting "Decentralized Control Law of
Six-Leg Robot Capable of Generating Walking Motion According to Leg Disconnection Situation"
reported in 30th Autonomous Distributed System Symposium.
http://www.riec.tohoku.ac.jp/ja/information/award/2019/02/post-19266/--New Paradigm VLSI System Section achieves "Below 50ǍW Operation at 200MHz in a
Nonvolatile Microcontroller Unit for Sensor-Node Applications" reported in ISSCC 2019.
http://www.tohoku.ac.jp/japanese/2019/02/press20190219-01-ISSCC.html--Recognition and Learning Systems Section demonstrates "Spatial representations of theviewer's surroundings" reported in Scientific Reports.
http://www.tohoku.ac.jp/japanese/2018/05/press20180509-01-ushiromomirume.html--Soft Computing Integrated System Section develops "Neuron and Synapse-Mimetic Spintronics
Devices" reported in Advanced Materials.
http://www.tohoku.ac.jp/japanese/2019/04/press-20190415-AdvMater.html
The more detailed research results of each section (laboratory) are shown as follows:
Real-World Computing Section:(refer to Real-World Computing Laboratory in Human Information Systems Division)
New Paradigm VLSI System Section:(refer to New Paradigm VLSI System Laboratory in Systems & Software Division)
Recognition and Learning Systems Section:(refer to Visual Cognition and Systems Laboratory in Human Information Systems Division)(refer to Advanced Acoustic Information Systems Laboratory in Human Information Systems
Division)
Soft Computing Integrated System Section:(refer to Soft Computing Integrated System Laboratory in Systems & Software Division)

50

2018
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9LVXDO&RJQLWLRQDQG6\VWHPV6DWRVKL6KLRLUL3URIHVVRU $XGLWRU\DQG0XOWLVHQVRU\,QIRUPDWLRQ6\VWHPV6KXLFKL6DNDPRWR$VVRFLDWH3URIHVVRU >5HVHDUFK7DUJHWDQG$FWLYLWLHV@
To create computational models of the process in the human brain that integrates multiple sensory
inputs from the outside world, we are investigating the visual and auditory functions in the humanbrain for implementing these functions in hardware under biologically plausible settings. Our
approaches include psychophysics, brain wave measurements, and computer simulations.
In this year, first, we investigated a model of motion in
depth based on interocular velocity difference (IOVD).
Perception of motion in depth is important to humans,
who live in the three dimensional world. One wants toavoid being hit or to catch objects approaching. We built
a model of direction perception of motion in depth toinvestigate how IOVD cue can be used for motion in
depth perception. IOVD is one of well-known three cues
for motion in depth, with disparity change in time andsize change. We found that the IOVD model can explain
Figure. Prediction (red line) of direction discrimination in
motion in depth measured by human psychophysicalmany of psychophysical results such as discrimination
experiment (black dots).
threshold of motion in depth direction, nonlinear resultsof motion in depth direction, temporal properties of rotation in depth and so on. These results
suggest that IOVD is an important cue for visual processing of motion in depth. Second, weinvestigated the mechanism of auditory selective attention, especially the dependence of the spatial
tuning of auditory selective attention. The results of speech intelligibility test under noisy
environment revealed that the attention spotlight is modulated by the direction of the attention.
>6WDII@Professor 㸸 Satoshi Shioiri, Ph.D.
Associate Professor : Shuichi Sakamoto, Ph.D.
>3DSHUV@
1. R. Teraoka, S. Sakamoto, Z. Cui, Y. Suzuki, S. Shioiri: "Influence of auditory selective attention on word
intelligibility," Proc. 65th Open Seminar on Acoustics, 307-310, 2018.
2. N. Onizawa, S. Koshita, S. Sakamoto, M. Kawamata, T. Hanyu: "An Area/Power-Aware 32-channel compressive
gammachirp filterbank chip based on hybrid stochastic/binary computation," Nonlinear Theory and Its
Applications, IEICE, E9-N(4), 406-422, 2018.
3. S. Shioiri, K. Hashimoto, K. Matsumiya, I. Kuriki, S. He: "Extracting the orientation of rotating objects without
object identification: Object orientation induction," Journal of vision 18 (9), 17-17, 2018.
4. S. Shioiri, M. Kobayashi, K. Matsumiya, I. Kuriki: "Spatial representations of the viewer’s surroundings,"
Scientific reports 8 (1), 7171, 2018.
5. D. Kang, YW. Sung, S. Shioiri: "Estimation of physiological sources of nonlinearity in blood oxygenationlevel-dependent contrast signals," Magnetic resonance imaging 46, 121-129, 2018.
6. M. Emoto, Y. Fang, S. Shioiri: "Viewers' Susceptibility to Image Blurs in Watching Ultra-high-definition TV
Correlates with Their Dynamic Visual Acuity," ITE Transactions on Media Technology and Applications 7 (2),103-110, 2019.

51

2018
,7FHQWHU

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The purpose of the IT-21 center is development of practical technologies for IT based on theadvanced technologies of RIEC with the partnership among Industry, Government and University.
The term of development is limited less than 5 years. The projects are planned on matching withboth basic technologies in the University and application in the Industry. Combination of thetechnologies of the University and Industry makes practical technologies with availability for thecommercial products. The center actively accelerates to obtain the intellectual properties generated
from the development of practical technology to the Industry. Last year, the center was reformed andtwo divisions are newly established. One is “Interdisciplinary Collaboration Research Division” andit consists of one project, “Research project of human value estimation of multimodal information
based on informatics paradigm to manage both quality and value”. Another is “Challenging andExploratory Research Division” and it consists of two projects, “Interactive drone content forentertainment / wildlife symbiosis” and “Wireless IoT Technology for a safe & secure mediciation
management system”. Former “Technology Development Division” is renamed to“Industry-Academia-Government-Collaboration Research and Development Division” and it consistsof one group, “Wireless ICT platform project”. Presently, following project is carried out in this group.
࣭5 ' RQ 7HFKQRORJLHV WR 'HQVHO\ DQG (IILFLHQWO\ 8WLOL]H 5DGLR 5HVRXUFHV RI 8QOLFHQVHG%DQGV
From 2017, the mobile wireless technology group has started a new R&D project “R&D on
Technologies to Densely and Efficiently Utilize Radio Resources of Unlicensed Bands in Dedicated
Areas” supported by the Ministry of Internal Affairs and Communications. In this project, we aregoing to develop a real-time frequency monitor to avoid the interference between different wirelesssystems in dedicated areas such as factory or office. This year, we have developed an 800MHz-6GHz
multi-band/real-time spectrum monitor which can detect several-tenths Ps order burst signal/noise.

>6WDII@'LUHFWRUNoriharu Suematsu, Professor,QGXVWU\$FDGHPLD*RYHUQPHQW&ROODERUDWLRQ 5HVHDUFK DQG 'HYHORSPHQW 'LYLVLRQ :LUHOHVV ,&7
SODWIRUPSURMHFW 
Noriharu Suematsu, Leader, Professor
Suguru Kameda, Associate Professor
Mizuki Motoyoshi, Assistant Professor
Hiroshi Okazaki, Visiting Professor,QWHUGLVFLSOLQDU\&ROODERUDWLRQ5HVHDUFK'LYLVLRQSatoshi Shioiri, Project Leader, Professor&KDOOHQJLQJDQG([SORUDWRU\5HVHDUFK'LYLVLRQ
Yoshifumi Kitamura, Project Leader, Professor
Suguru Kameda, Project Leader, Associate Professor

52

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>5HVHDUFK7DUJHWDQG$FWLYLWLHV@Mobile wireless communication technology is one of the significant communication technologies that
support the Information and Communication Technology (ICT) society, connected with the high-speed
backbone network using optical fiber. Evolution of the mobile wireless communication technology inJapan is indispensable to keep the leadership in this technology area in the world. The mobile
wireless technology group has been proposing the concept of “Dependable Air,” which is aheterogeneous and highly-reliable wireless network. The Dependable Air is able to work even in theevent of a big disaster. The group has started a new R&D project͆R&D on Technologies to Densely
and Efficiently Utilize Radio Resources of Unlicensed Bands in Dedicated Areas” supported by the
Ministry of Internal Affairs and Communications from 2017.
>6WDII@Professor: Noriharu Suematsu, Ph.D
Associate Professor: Suguru Kameda, Ph.D
Assistant Professor: Mizuki Motoyoshi, Ph.D
Visiting Professor: Koji Okazaki, Ph.D
>3DSHUV@>@ 1 <RVKLQR . 1RULVKLPD 0 0RWR\RVKL 6 .DPHGD 1 6XHPDWVX 1 6XHPDWVX  *+]%DQG 'LUHFW 5)
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$30& 1RY

Contact to Professor Noriharu SUEMATSU : suematsu@riec.tohoku.ac.jp

53

2018


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5HVHDUFKSURMHFWRIKXPDQYDOXHHVWLPDWLRQRIPXOWLPRGDOLQIRUPDWLRQEDVHG
RQLQIRUPDWLFVSDUDGLJPWRPDQDJHERWKTXDOLW\)LJ(VWLPDWLRQRIKXPDQKLJKHURUGHU-XGJPHQWVZLWK&RQYROXWLRQDO1HXUDO1HWZRUNV3UHGLFWLRQIRUHDFKLPDJH3iEDVHGRQWUDLQLQJZLWKLQSXWLPDJHZLWKJURXQGWUXWK*i.
㻌Satoshi Shioiri, Dr. Professor
Nobuyuki Sakai, Dr. Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
One of our major research activities is investigation of the usage of Convolution Neural Networks
as decision support system for high level human judgments such as preference of images (Fig. 1),
using a lunchbox dataset, containing 760 images. To compensate the small size of the dataset, we
fine-tuned several layers of a trained CNN for object recognition (AlexNet). The fine tuned network
succeeded to predict high-level human judgments with dataset size of less than 1000 with aconsiderable accuracy.

㻌>6WDII@Professor 䠖 Satoshi Shioiri, Dr.
Professor 䠖 Nobuyuki Sakai, Dr.
Assistant Professor : Kosuke Yamamoto㻌 >3URILOH@
Satoshi SHIOIRI Professor Shioiri graduated Tokyo Institute of Technology and received Dr. Eng in
1986. In 2005, he joined Tohoku University and he has been a professor of Research Institute ofElectrical Communication of Tohoku University since then.

㻌Nobuyuki Sakai graduated from Graduate School of Human Sciences, Osaka University in 1998.
Then he worked at Hiroshima Shudo University and National Institute of Advanced and Industrial
Science and Technology (AIST) , Kobe Shoin Women’s University. He, then, moved to Sendai in
October 2011, and he is a professor of Graduate School of Arts and Letters of Tohoku University
now.
㻌
>3DSHUV@
[1] Shioiri, S., Kobayashi, M., Matsumiya, K. & Kuriki, I.Spatial representations of the viewer's
surroundings.Scientific reports 8, 7171, doi:10.1038/s41598-018-25433-5 (2018).
[2] Hao Wang, Kazuya Matsubara, Yuji Wada, Chia-huei Tseng, Kazumichi Matsumiya, Ichiro Kuriki
and Satoshi Shioiri,The Evaluation of Images based on Human Preference with Convolutional Neural
Networks, APCV 2018.
[3] Takuya Onuma, Hiroaki Maruyama, and Nobuyuki Sakai Enhancement of Saltiness Perception by
Monosodium Glutamate Taste and Soy Sauce Odor: A Near-Infrared Spectroscopy Study. Chemical
Senses, Volume 43, Issue 3, Pages 151–167 (2018)

54

2018


([SORUDWRU\5HVHDUFK'LYLVLRQ,QWHUDFWLYH'URQH&RQWHQWIRU(QWHUWDLQPHQW:LOGOLIH6\PELRVLVYoshifumi KITAMURA, Professor>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
This project aims to develop core technologies of interactive drone content for real industrial use
including entertainment and wildlife symbiosis, through close industry/academia/government
cooperation. It is expected to support continuous development of drone technologies through thisinnovation, and produce new industry and services in response to societal needs.
The followings are current research projects:(1) Development of intuitive user interface for a drone pilot(2) Development of crow-type-drone to communicate with crows.
(3) Techniques for video sharing and distribution for enhancing entertainment of drone race.
>6WDII@Professor: Yoshifumi Kitamura, Dr.
>3URILOH@
Yoshifumi Kitamura: Since 2010, he has been Professor in the Research Institute of ElectricalCommunication, Tohoku University. Prior to arriving at Tohoku, he was an Associate Professor at
Graduate School of Engineering, and Graduate School of Information Science and Technology,
Osaka University. While working at ATR Communication Systems Research Laboratories, hefocused on sophisticated user interfaces in virtual environments. His first formal appointment wasin the Information Systems Research Center Canon Inc., where he was involved in research on
artificial intelligence, image processing, computer vision, and 3D data processing. His formal
education was obtained at Osaka University, B.Sc (1985); M.Sc. (1987); and Ph.D. (1996).
>3DSHUV@>@ .RK 6XHGD 7DNDVKL .LWDGD <XVKLQ 6X]XNL DQG 7DLNL :DGD 5HVHDUFK DQG 'HYHORSPHQW RI $XJPHQWHG )39
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55

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pasting-type sensor

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Medical costs that continue to increase with progress in aging society and medical advances areserious social problems on the worldwide scale. In order to reduce medical expenses, it is indispensable
to construct a medication management system that enables inventory control and confirmation ofingestion.
This division conducts exploratory research on establishing a safe medication management systemusing wireless IoT technology. The goal of this research is the realization and practical implementationof system construction that allows patients to take medication management just by taking tablet-type
medicine. In this research, we are now studying for the battery-less tablet-pasting-type sensor by
applying wireless IoT technology.
In this year, we developed low power oscillator for wireless transceiver of battery-less sensor node. The
fabricated IC using 65nm bulk CMOS process performs 57.4 GHz with 130 PW power consumption.
The FoM is 10dB higher than those of previously reported.
>3DSHUV@>@ 0 0RWR\RVKL 6 .DPHGD 1 6XHPDWVX ³ *+]  P: &026 0LOOLPHWHUZDYH RVFLOODWRU IRU XOWUDORZ SRZHUVHQVRUQRGH´WK*OREDO6\PSRVLXPRQ0LOOLPHWHU:DYHV0D\

56

2018
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5HDOL]LQJ DQG 0DLQWDLQLQJ D 6DIH DQG &RPIRUWDEOH (QYLURQPHQW WR 6XSSRUW5HVHDUFK>5HVHDUFK7DUJHWDQG$FWLYLWLHV@

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        Safety and health seminarFirst aid training course2XWOLQHRIWKH0DQDJHPHQW2IILFHIRU6DIHW\DQG+HDOWKThe Management Office for Safety and Health is established to maintain the safety and health ofstudents and staff working at the institute. The use of chemicals, high-pressure gas and radiation in
research activities at the institute entails many risks. The Management Office for Safety and Healthprovides support for safety and health management in research laboratories, experimental facilities
and the Fundamental Technology Center through various activities to ensure safe and smooth
research activities within the institute.
$FWLYLWLHVE\WKH0DQDJHPHQW2IILFHIRU6DIHW\DQG+HDOWKFor the actual management of safety and health at the office, the Safety and Health Committee firstpresents the basic policies of safety management at the institute, and the Management Office for
Safety and Health then plans and executes activities based on them. At the institute, laboratories andother individual sections are highly independent of each other; unlike a general corporate organization,
top-down safety management is not suitable and measures appropriate for independent sections need
to be taken. Various considerations are also necessary for students, researchers, and other members
engaged in research activities as well as faculty staff. At this institute, extremely hazardous materials
and facilities are used, including chemicals, high-pressure gas, and X-ray devices. Since there is also aclean room and other special workplaces, safety management should be extended by considering them.
In these circumstances, the Management Office for Safety and Health will monitor situations andcharacteristics in each section at the institute, plan and recommend practical management methods
and improvement measures, and support their implementation for the efficient and effective
management of safety and health. The main activities in this fiscal year are as follows:ʊ Holding safety and health seminar and high-pressure gas seminar for staff and students at theinstituteʊ Inspection of and assistance in improving the safety and health management system and working
environment within the instituteʊ Holding first aid training course
ʊ Investigation of laws related to safety and health and collection of information regarding safety
and health management
ʊ Providing advice and information to safety and health personnel in each department
 >6WDII@Manager: Kazushi Ishiyama, Professor
Deputy Manager: Yoichi Uehara, Professor
Nobuyuki Sato, Assistant Professor
Maho Abe, Technical Staff

Haruka Takahashi, Clerk
anzen@riec.tohoku.ac.jp

57

2018
)OH[LEOH,QIRUPDWLRQ6\VWHP&HQWHU'HYHORSPHQWDQG0DQDJHPHQWRI)OH[LEOH,QIRUPDWLRQ6\VWHP>5HVHDUFK7DUJHWDQG$FWLYLWLHV@
The present information systems represented bycomputers are inflexible systems, because their uses
are predefined and they provide only the fixed
processing and functions. The flexible information
system on the other hand, is a system which canperform the flexible information processing adapted
to the human intention and situation of its
environment beyond the limitations of the principlesof the inflexible information processing. The aims ofthis center are to manage and operate information
networks and systems based on the concept of theflexible information system, and support smooth
research activities of RIEC.
Figure 1 RIEC network system
Moreover, utilizing technical know-how acquired
through applying the information networks andsystems to practical use, we also design and construct a leading-edge system for advanced
organization, utilization, administration, operation and dispatching of scientific information.
1. Information collection, organization, dispatching, utilization and research support environment.
2. Advanced maintenance, management and operation of network.
3. Technical supports for information networks and systems in the institute.

>6WDII@
(1) Steering Committee
Professor: Tetsuo Kinoshita, Dr., Yôiti Suzuki, Dr., Masafumi Shirai, Dr., Atsushi Ohori, Dr., Takuo
Suganuma, Dr.
(2) Regular Staff
Associate Professor: Gen Kitagata, Dr.
Assistant Professor: Kazuto Sasai, Dr.
Technical Official: Masahiko Sato, Kenji Ota
Technical Support Member: Mutumi Syutou, Riho Ooizumi

58

ﬁr@riec.tohoku.ac.jp

2018)XQGDPHQWDO7HFKQRORJ\&HQWHU

6XSSRUWLQJUHVHDUFKZLWKKLJKOHYHOVSHFLDOL]HGNQRZOHGJHDQGWHFKQRORJ\

Overview of the Fundamental Technology Center

 >5HVHDUFK7DUJHWDQG$FWLYLWLHV@
The Fundamental Technology Center provides a wide range of technical support for research anddevelopment through four divisions: Machine Shop Division, Evaluation Division, Process Division,and Information Technology Division. The following is a summary of the activities of the divisions of
the Fundamental Technology Center for the current year.
1. Machine Shop Division
Following requests from researchers, the Machine Shop Division supplied 120 machining products.
About 15% of the requests were from outside the institute.
2. Evaluation Division
An organization and 22 laboratories utilized the evaluation and measurement apparatuses forshared usage (the utilization time was 7385 hours). Two glass processing products were supplied.
Technical assistance was provided on the use of liquid heliumDQG liters of liquid nitrogen were
supplied. In cooperation with the administration and the management offices for safety and health,this division also engaged in safety maintenance of the institute.
3. Process Division
In cooperation with the technical office, a section of the Laboratory for Nanoelectronics andSpintronics, 141 Electron-beam lithographic products and 25 photomasks were supplied. Technicalsupports were provided for operating the clean room of the Laboratory for Nanoelectronics andSpintronics.
4. Information Technology DivisionThis division operated the in-house network at the institute and maintained shared-useinformation-equipment, in cooperation with the Flexible Information System Center. This division also
engaged in the contracting aspects of collaborative research based on intellectual property rights andgave advice to researchers who tried to apply for the grant of patents.

>6WDII@
Director (Professor): Shigeo SATO.
Assistant Professor: Nobuyuki SATO.
Technical Officials:

Tamotsu SUENAGA, Kento ABE, Yasuaki MAEDA, Kana SEKIYA, Maho ABE,
Takenori TANNO, Hiroyuki YAGYU, Iori MORITA, Rikima ONO,

Michimasa MUSHA, Masahiko SATO, Yuko MARUYAMA, Kenji OHTA,
Koichi SHOJI.

eac@riec.tohoku.ac.jp

59

2018
$GKRFUHVHDUFKJURXSVTaking advantage of the wide range of expertise in the institute, ad-hoc research groups areformed outside of the formal organizational structure to investigate challenging exploratory topics
and needs-based, cutting-edge subjects.

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Selecting information obtained through sensory organs by attention is inevitable to live thecomplicated world with dynamic changes. A number of studies have investigated the mechanisms ofattention, but most of them focused on cognitive processes. We have limited knowledge of attention
effect on action. The research group investigates representation of space in the brain, which
expresses the outside space based on multiple sensory information. We hypothesize that spaceattention in the multi-sensory representation is the process for selecting action. We started toinvestigate interaction between visual and auditory attention. Our proposal of a project, 'control ofaudiovisual attention by spontaneous attention,' has been accepted for Kaken A, this year.

><RWWD,QIRUPDWLFV5HVHDUFK*URXS@The amount of information is rapidly increasing, which is projected to reach to the amount of one
yotta bytes, one trillion times of one Tera-bytes, or 10 to 24th bytes. The information is too large tocoop with it by the conventional ICT technology. Therefore, essential paradigm shift for the
information processing is indispensable. In this group, we aim at the new informatics, which canmanage the “quality” of information as well as the information “amount”. In 2018, our groupsupported the activity of Advanced Institute of Yotta informatics for interdisciplinary collaboration
projects and an international symposium of Yotta projects.

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For the next-generation information and communication infrastructures such as IoT, M2M, and
CPS, we aim to developing advanced information security technologies to ensure security andreliability at the level of vast and diverse information sources (i.e., embedded devices such as sensor
terminals) in a vertically integrated manner by various researchers from the viewpoints of software
constitutive theory, system security, hardware security, circuit architecture, next-generation
microprocessor, and so on. In this year, we discussed and confirmed our goal and research direction
with several seminars and meetings.

60

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>%UDLQPRUSKLF1DQR'HYLFHVDQG&LUFXLWV5HVHDUFK*URXS@
Brain-inspired hardware systems have been actively developed recently. However, a big
break-through to the true brain-like system has not been reached yet. This research group aims at
development and implementation of novel brainmorphic computational hardware that reproduces
the bio-physics and dynamics in the brain directly through dynamics and physics of nano-devices
and ultra-low-power integrated circuits based on the latest physiological knowledge. In this year,
we discussed a basic strategy to propel collaborative researches on brainmorphic hardware andbiotronics from broad perspective that includes brain science, spintronics, analog/digital integrated
circuits, cultured neurocyte, and nonlinear complex dynamics.

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The aim of this research group is to propose a novel concept of Internet of Things (IoT) totalsolution. In the real IoT era, low latency / high data rate / dense wireless connection will be required
as a last 1 meter mobile / flexible network.

In order to realize this last 1 meter mobile / flexible

wireless network, millimeter-wave (MMW) / sub-MMW will be used to reduce the interference
between the dense / various wireless networks. This year, we have investigated the novel wirelessIoT communication system between high speed/mobility wireless sensor nodes and access points.

61

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65

2018



&HQWHUIRU6SLQWURQLFV5HVHDUFK1HWZRUN &651 㸺Overview㸼Establishment: April 1, 2016
Organization: Director: Koki Takanashi (Director, Professor, IMR)
Number of academic members: 64 (including 5 full-time members and the otherconcurrent members from Grad. School of Science, Grad. School of Engineering,
IMR, RIEC, IMRAM, AIMR, CSIS, CIES, and FRIS, Tohoku University and NIMS)
Mission: The center will be the hub of a network to promote collaborations with otherresearch institutions within Japan and overseas, aiming to (1) improve
competitiveness of world-leading spintronics research in Japan, (2) create newbranches and enhance existing areas of industry, and (3) foster the nextgeneration human resources.
Research activities:[Spintronics Device Creation Division]
We develop advanced systems and devices for energy creation and energy saving
by using spintronics technology to provide eco-friendly infrastructure and toinnovate conventional information and communication technology.
[Spintronics Device Characterization Division]
We develop advanced measurement techniques to characterize the behavior ofspins in integrated spintronics devices. We also clarify the physical mechanism of
the behavior of spins in spintronics devices theoretically to propose innovative
spintronics devices.
㸺Major activities in FY2018㸼
࣭Cooperative Research Project
We adopt 54 cooperative research projects to promote collaborations with other spintronics
researchers. The collaborators belong 39 institutions in Japan and 23 overseas institutions (in11 countries). For detail, see the following URL: http://www.csrn.tohoku.ac.jp/
࣭Academic Meetings
As a part of activity based on MOU on academic exchange between CSRN and Singapore
Spintronics Consortium (SG-Spin), the second Workshop was held in Singapore on February 22,
2019. For promoting exchange and fostering human resources of spintronics researchers,
CSRN jointly hosted international conferences, workshops, and schools (15 meetings in total).

66

2018


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67

2018


/HDGLQJ*UDGXDWH3URJUDP³,QWHUGHSDUWPHQWDO'RFWRUDO'HJUHH3URJUDPIRU
0XOWL'LPHQVLRQDO0DWHULDOV6FLHQFH/HDGHUV´㸺Overview㸼Establishment: October, 2013
Organization; Program manager: Hirotsugu Takizawa (Executive Vice President for
Education and Student Support)
Program coordinator: Tetsuya Nagasaka (Professor, Grad. School of Engineering)
Program members: about 60 academic staffs in Tohoku University
Mission; Cultivating human resources through creating leaders who have a firm grasp of thefundamentals of material science and extensive research experience.
The term “multi-dimensional” (MD) refers to the extensive, panoramic perceptionof materials through dimensions such as functionalities, characteristics, processes,
environmental compatibility, economics, safety, and assessment techniques.
㸺Major activities in FY2018㸼
In FY2018, 4 new students joined the program and 62 students in total learned thefundamental and specialized subjects and joined long-term internship at domestic corporations
and foreign institutions.
The 4th Symposium between the MD program and Ambitious Leaders program (Hokkaido
University) was held in Sapporo during May 18-20, 2018. A variety of programs, such aslaboratory tour, facilitation lectures, poster sessions and workshops, were carried out during
the symposium for deepening mutual understanding and exchanges between students of bothprograms.

68

2018



*UDGXDWH3URJUDPLQ6SLQWURQLFV *36SLQ 㸺Overview㸼Establishment: April 1, 2015
Organization: Program manager: Hirotsugu Takizawa (Executive Vice President for
Education and Student Support)
Program leader: Yoshiro Hirayama (Professor, Graduate School of Science)
Program members: 15 academic staffs in Tohoku University
Foreign organization: Johannes Gutenberg Univ. Mainz (Germany), Tech. Univ.
München (Germany), Tech. Univ. Kaiserslautern (Germany), Univ. Regensburg(Germany), Tech. Univ. Delft (The Netherland), Univ. Groningen (The Netherland),Univ. Chicago (USA), Univ. New South Wales (Australia)
Mission: Education of world-class leaders in spintronics from fundamental to applications
Activities: (1) Education by world-leading professors from all departments and institute in
Tohoku University with participation from all over the world(2) Joint education with foreign organization including joint supervised
degree/joint degree, mutual visit and long-term internship, international
school/workshop, qualifying examination to guarantee the educational quality
㸺Major activities in FY2018㸼
In FY2018, 14 invited researchers gave lectures at the GP-Spin Seminar during their stays
in Tohoku University.
The Joint Seminar organized by GP-Spin students was held during March 1-2, 2019 at
Tohoku University. World-leading 3 researchers in spintronics invited from Johannes
Gutenberg University Mainz, University of Exeter and the City University of New York gave
special lecturers. Students and young researchers from Johannes Gutenberg University,
University of Lorraine, and Tohoku University also gave exciting talks and poster
presentations on their new research results.
The Students Workshops were held at Tohoku University on August 22, 2018 and on March
11, 2019 for improving presentation skills of GP-Spin students.

69

2018

&HQWHUIRU6FLHQFHDQG,QQRYDWLRQLQ6SLQWURQLFV &6,6 㸺Overview㸼Establishment: January 30, 2018
Organization: Director: Yoshio Hirayama (Professor, Graduate School of Science)
Number of academic members: 34 (concurrent members from Grad. School of
Science, Grad. School of Engineering, IMR, RIEC, IMRAM, AIMR, FRIS, CSIS,
CIES, and CSRN, Tohoku University)
Mission: Creation of world-leading research center pioneering in so-called “Spin-Centered
Science” by strategic consolidation of excellent researchers from foreign leading
universities in fundamental and applied fields.
Research activities:
Spin-centered fundamental science, advanced spintronic materials, spintronic
devices, and integration technology of spintronic devices.
㸺Major activities in FY2018㸼
࣭Cooperative Research Project
We adopt 13 cooperative research projects to promote collaborations beyond the past
framework at Tohoku University. These proposals have potentials to lead to high-quality
achievements and international joint papers.
࣭Joint Research Laboratory
Joint Research Laboratory was established at Tsinghua University in China to promotecollaborative research on “Spin detection and manipulation in topological insulator based
heterostructures.”࣭International Academic Meetings
The international workshops were held to promote academic exchange between CSIS andforeign leading universities; Tsinghua University (July 2018 in Sendai) and University College
London (October 2018 in London). The 2nd Symposium for World-Leading Research Centers–Materials Science and Spintronics- was held on February 16-18, 2019 at Sendai International
Center. More than 250 participants including 24 foreigners from 6 countries attended thesymposium.

70

2018

                          

0LQLVWU\RI(GXFDWLRQ&XOWXUH6SRUWV6FLHQFHDQG7HFKQRORJ\ 0(;7 -DSDQ
:,6(3URJUDP 'RFWRUDO3URJUDPIRU:RUOGOHDGLQJ,QQRYDWLYH 6PDUW(GXFDWLRQ $GYDQFHG*UDGXDWH3URJUDPIRU$,(OHFWURQLFV㸺About the Center㸼
Establishment㸸Adopted October, 2018.
It has been adopted by the WISE Program (Doctoral Program for World-leading
Innovative & Smart Education) of MEXT. This program is a new education
program that starts from FY 2018.

Organization㸸Chief executive: Hideo Ohno (President of Tohoku University)
Program leader: Masahiro Yamaguchi (Vise-President of Tohoku University(Education Reform / International Strategy))
Program coordinator: Toshiro Kaneko (School of engineering, Professor)
Program manager: Approximately 60 people (including managers and acoordinator)

Target of Program㸸In this Graduate School Program, we will foster world-class talented
doctors who can make an innovation continuously through the learning of “anpractical ability”, “solving of social problems”, “creation of novel value”, and “anability that can see real space and cyber space in Society 5.0 with wide
perspectives”.

㸺Major Achievements in 2018㸼
Recruitment and selection of first-term students were conducted. 36 program
students (15 M1 students, 9 M2 students, and 12 D1 students) for FY 2019 were
determined.

71

2018
㸲. Nation-㹵ide Cooperative Research Projects
The Institute has a long history of fundamental contributions in many fields of engineering andscience that include the fields of semiconductor materials and devices, magnetic recording, opticalcommunication, electromagnetic technology, wireless communication, applications of ultrasoniccommunication and acoustic communication, non-linear physics and engineering, and computer
software. On the basis of this rich historical background the Institute was designated as a National
Center for Cooperative Research in 1994. Accompanying Tohoku University’s transformation to “anational university juridical entity” in April, 2004, this institution plays a leading role on the worldstage, as its researchers, both domestic and foreign, continue the task of “investigating the theory
and application of universal science and technology to realize communication, to the enrichment of
humanity.”
With this background, the Institute organizes Nation-wide Cooperative Research Projects bycoordinating its activities with research workers. The main themes for Cooperative Research are
selected annually by the Committee for Cooperative Research Projects. Then invitations for project
proposals and participation are extended to university faculties and government laboratories aswell as industrial research groups. Each project approved by the Faculty Council of the Institute iscarried out by a team of researchers that include members of the Institute as well as outside
participants.
The Advisory Council which includes members from other institutions has an advisory function to
the Director in defining the general direction of the research at the Institute and its Nation-wide
Cooperative Research Projects.
The Project Selection Committee that includes members from outside of Tohoku University has a
Judging function for project proposals. The purpose of the Project Steering Committee is the proper
operation of approved projects.

72

2018
Nation-wide Cooperative Research Projects List 2018
Grant
NumberTitle of Research

Exploration of phase change
phenomena of nanometer-scale
H28/A01
materials and their applications to
opto-electronic devices

Principal Investigator

KUWAHARA Masashi
Electronics and Photonics ResearchInstitute,
National Institute of Advanced
Industrial Science and Technology

UEHARA
Yoichi

UMEDA Yohtaro
Faculty of Science and Technology,
Tokyo University of Science

SATOU
Akira

H28/A02

Study on High Power Amplifier with
InGaAs HEMTs with Field Plate

H28/A03

MIYAZAKI Seiichi
Electroluminescence from Si-Ge based
Graduate School of Engineering,
Quantum Dots
Nagoya University

Improvement of Superconducting
H28/A04
Detectors and Readouts

Research
Collaborator
of RIEC

ISHINO Hirokazu
Graduate School of Natural Scienceand Technology,
Okayama University

MITSUMORI Yasuyoshi
Study on a local field effect of localized
Research Institute of Electrical
H28/A05 electronic polarizations in
Communication,
semiconductors
Tohoku University

SATO
ShigeoSATO
ShigeoMITSUMORI
Yasuyoshi

Quantum emitters coupled to a chiral
H28/A06
nanowaveguide

Sadgrove Mark Paul
Research Institute of ElectricalCommunication,
Tohoku University

Sadgrove
Mark Paul

H28/A08 Study on Brainware Architecture

KANOH Toshiyuki
Central Research Laboratories,
NEC Corporation

HORIO
Yoshihiko

Effect of interactive confectionary feed UEOKA Ryoko
H28/A09 device to support intellectual creation Faculty of Design,
activities
Kyushu University

Development of a sound source
H28/A10 segregation system based on artificial
intelligence technology

OZAWA Kenji
Interdisciplinary Graduate School,
University of Yamanashi

Communication system for controlling TANAKA Akihiro
H28/A11 human cognition and behavior from
Department of Psychology,
kansei information of speech
Tokyo Woman's Christian University

TAKASHIMA
KazukiSUZUKI
Yôiti

SAKAMOTO
Shuichi

73

2018

Grant
NumberTitle of Research

Study of the cooperative environment
H28/A13 system for building visual cognition
models.

H28/A14

Design and Globalization of
Dissipative Infrastructure

Principal Investigator

SAKA
KAI KoFaculty of Engineering Informationand Systems,
Tsukbua University
KAS
K
KA
A
ki
Cybermedia Center,
Osaka University

Japan-USA International
Collaborative Research on GrapheneH28/A15 Based Atomically-Thin 2D
Heterostructures and their Terahertz
Applications

MITI
imir
Department of Electrical Engineering,
University at Buffalo, State Universityof New YorkElectrical manipulation of
H28/A16 magnetization and spin dynamics
through spin-orbit interaction

KOH
koto
Graduate School of Engineering,Tohoku university

Inducing techniques for magnetic
anisotropy of amorphous
H28/A17 magnetostrictive films using inversemagnetostriction effect and its
applications

HAS
chiro
Research Institute of ElectricalCommunication,
Tohoku University

CHAKRABORTY Goutam
Detection and Prediction of Abnormal Department of Software andH28/A23
Information Science,State from Multivariate Bio-signals
Iwate Prefectural University
Intelligent Network Security
H28/A24 Technologies for Next-Generation IoT
Platform

H29/A02

Development of low-loss flexible
metamaterials

Evaluation of layered structure in
H29/A03 dielectric devises using scanning
nonlinear dielectric microscopy

NAGu
Graduate School of Information
Sciences,
Hiroshima City University
UCHINO Takashi
Department of Electronics andIntelligent Systems, Faculty ofEngineering,Tohoku Institute of Technology

RI
Satoshi

ATA

I

KANAI
K
KA
A
Shun

Shuichiro

HITA

NATSUIori

OTSUJIODAGAWA
AH
Innovative Research Center,
National Institute of Technology,
Kumamoto College

Ultra-High Sensitive Nuclear-Spin
SASAumu
H29/A04 Investigation of Nano-Scale Properties Faculty of Engineering,in Spintronics Materials
Niigata University

74

borator
EC

MI
ke

2018

Grant
NumberTitle of Research

Principal Investigator

Research
Collaborator
of RIEC

Fabrication of high-performance andH29/A05 integrated-optoelectrical device withatomically thin layered materials

KATO Toshiaki
Graduate School of Engineering,Tohoku University

YAMASUE
Kohei

Study on single-crystal graphene
H29/A07
devices

NAGASE Masao
Graduate School of Technology,
Industrial and Social Sciences
Tokushima University

OTSUJI
TaiichiAtomic Control in New Group-IV
H29/A08 Semiconductor Nanostructures forHigh-Performance Device

SAKURABA Masao
Research Institute of ElectricalCommunication,
Tohoku University

SAKURABA
Masao

Study of the effect of post-deposition
H29/A09 processing on various type high-k/Ge
structure

OKAMOTO Hiroshi
Graduate School of Science andTechnology,
Hirosaki University

SATO
ShigeoMEZIANI, Yahya Moubarak
Fisica Aplicada,Salamanca University

OTSUJITaichi

H29/A10Development of graphene based
devices for terahertz applications

SVINTSOV, Dmitry
Theoretical Study of Nonequilibrium Laboratory of 2d Materials’
H29/A11 Dynamics of Electrons and Plasmons Optoelectronics,
in Two-Dimensional Electron Systems Moscow Institute of Physics andTechnology

SATOU
Akira

Massive Connect IoT Using a
H29/A12 Precision Position and Time
Information on QZSSOGUMA Hiroshi
Department of Electronics andComputer Engineering,
National Institute of Technology,
Toyama College

KAMEDA
SuguruStudies on direct digital RF
H29/A13transceivers

SUEMATSU Noriharu
Research Institute of ElectricalCommunication,
Tohoku University

SUEMATSU
Noriharu

Using Deep Learning for Human
H29/A14 Motion Analysis and Synthesis, and
Its Application to HCI

KOMURA Taku
School of Informatics,
Edinburgh University

KITAMURA
Yoshifumi

Evaluating visual contents based on
H29/A15 collaborative EEG signals frommultiple subjects

TOUYAMA Hideaki
Faculty of Engineering,
Toyama Prefectural University

KITAMURA
Yoshifumi

75

2018

Grant
Number

H29/A16

Title of Research

TOKUNAGA Rumi
Cultural and individual differences inCollege of Liberal Arts and Sciences,color lexicon
Chiba University

Research
Collaborator
of RIECKURIKI
IchiroDevelopment of Ion channel sensing
system with high sensitivity and high
H29/A17
accuracy based on silicon
microfabrication and lipid bilayers

TERO Ryugo
Department of Environmental andLife Sciences,
Toyohashi University of Technology

HIRANO
Ayumi

Speech intelligibility evaluation andH29/A18 its estimation for development of
outdoor public address system.

KOBAYASHI Yosuke
Graduate School of Engineering,
Muroran Institute of Technology

SAKAMOTO
Shuichi

KIYOKAWA Kiyoshi
Graduate School of Information
Science,Nara institute of science andtechnology

KITAMURA
Yoshifumi

H29/A19

Gaze Visualization in CooperativeWork

Development of the object based audio TSUCHIYA Takao
Faculty of Scince and Engineering,
H29/A20 by sound field rendering with
Doshisha University
surrounding loudspeaker array

SAKAMOTO
Shuichi

HORIO YoshihikoPractical applications of nonlinear andResearch Institute of Electrical
H29/A21 complex systems theory to nonlinearCommunication,complex engineering systems
Tohoku University

HORIO
YoshihikoTemporal characteristics of
H29/A22 multisensory auditory spaceperception

HONDA AKio
Faculty of Comprehensive Informatics, SAKAMOTO
Shizuoka Institute of Science andShuichiTechnology

Immersive experience of virtual
auditory environment: investigating
H29/A23
influence of physical parameters ofheight ambiences

KIM, Sungyoung
Electrical, Computer andTelecommunications Engineering
Technology,
Rochester Institute of Technology

SAKAMOTO
ShuichiLI, Jing-Ling
Laboratory of visual attention,
Graduate Institute of Biomedical
Sciences,
China Medical University

TSENG
Chia-Huei

CHEN, Chien-Chung
Department of Psychology,
National Taiwan University

TSENG
Chia-Huei

H29/A24

Mind and environment interface:
Human attention in the brain

The effect of attention on the
H29/A25 integration of image components in
the human visual system

76

Principal Investigator

2018

Grant
NumberTitle of Research

Principal Investigator

Research
Collaborator
of RIEC

TSENG, Chia-Huei
Social communication: behavioral and Research Institute of Electrical
H29/A26
brain representations
Communication,
Tohoku University

TSENG
Chia-Huei

Next Generation Information Flow
H29/A27 Processing Platform for Human-inthe-loop IoT

YAMAGUCHI Hirozumi
Graduate School of Information
Science and Technology,
Osaka University

KITAGATAGen

The source-direction dependency of
H29/A28 pinna shape and acoustic transfer
function

ITO Masashi
Faculty of Engineering,Tohoku Institute of Technology

SAKAMOTO
Shuichi

ZABIR Salahuddin Muhammad
Salim
Research on the development of a new
H29/A29
Department of Creative Engineering,
generation IoT platform
National Institute of Technology,
Tsuruoka College

KINOSHITA
TetsuoStudy on Device Cooperative System
H29/A30 Supporting User Behavior
Synchronization

TAKAHASHI
Hideyuki

YAMAZAKI Tatsuya
Faculty of Engineering,
Niigata University

IMAIZUMI Fuminobu
Formation of MEMS with BiFeO3 thin Department of Mechanical
H29/A32 films and wireless communication
Engineering,
technology
National Institute of Technology,
Oyama College

H29/A33

Development study on high sensitivegas sensors with titania nanotubes

Analyzing the relationship between
H29/A34 network structure and function incortexH29/A35

Understanding and reconstruction ofminimal brain

KAMEDA
SuguruNIWANO Michio
Kansei Fukushi Research Institute,
Tohoku Fukushi University

HIRANO
Ayumi

KUBOTA Shigeru
Graduate School of Science andEngineering,
Yamagata University

HIRANO
Ayumi

KAMIYA Haruyuki
Graduate School of Medicine,
Hokkaido University

HIRANO
Ayumi

KITAMURA Yoshifumi
Creative Application of 3D Magnetic
Research Institute of Electrical
H29/A36 Motion Tracking System to Music: theCommunication,
CubeHarmonic
Tohoku University

KITAMURA
Yoshifumi

77

2018

Grant
NumberTitle of Research

Principal Investigator

FUKIDOME Hirokazu
Advaced Devices Researches by Using Research Institute of Electrical
H30/A01
Spatio-Temporal X-ray spectroscopy
Communication,
Tohoku University

H30/A02

KANEKO Toshiro
Creation of Bio-Medical Devices Using
Graduate School of Engineering,
Gas-Liquid Interfacial Plasmas
Tohoku University

H30/A03

Quantum devices based on atomic
layers

FUKIDOME
Hirokazu

HIRANO
Ayumi

MASUBUCHI Satoru
Institute of Industrial Science,
Univeristy of TokyoOTSUKA
Tomohiro

Japan-Russia International
collaborative research on gated GaAs
H30/A04 structures with an array of selfassembled Sn-nanothreads and theirterahertz applications

DMITRY Ponomarev
Institute of ultra high frequency
semiconductor electronics of Russian
academy of sciences,
Laboratory of high-power microwave
and mm-wave applications

OTSUJI
Taiichi

Development of vibrational
spectroscopy having high temporal
H30/A05and spatial resolution and its
application to devices

UEHARA Yoichi
Research Institute of ElectricalCommunication,
Tohoku University

UEHARA
YoichiFUKUHARA Takeshi
Center for Emergent Matter Science,
RIKEN

OTSUKA
Tomohiro

H30/A06

Development of general control
techniques of quantum systems

ISHIHARA Jun
Control of spin state in semiconductor Department of Applied Physics,
H30/A07
using photon-spin conversion
Faculty of Science,
Tokyo University of Science
Nanoscale optical measurement andH30/A08 ultimate photoelectronic control ofcarbon nanomaterials

H30/A09

Informatics approaches in quantum
devicesDevelopment of Low-Energy Plasma
Process for High-Performance GroupH30/A10
IV Semiconductor Quantum
Nanodevices

78

Research
Collaborator
of RIEC

KANAI
Shun

KATANO Satoshi
Research Institute of ElectricalCommunication,
Tohoku University

KATANO
SatoshiSHIGA Motoki
Faculty of Engineering,
Gifu University

OTSUKA
Tomohiro

SAKURABA Masao
Research Institute of ElectricalCommunication,
Tohoku University

SAKURABA
Masao

2018

Grant
NumberTitle of Research

Principal Investigator

Research
Collaborator
of RIEC

Energy Harvest applied Active
H30/A11 Reflectarray for Mobile IoT searchrange expansion

MARUYAMA Tamami
Department of Production Systems
Engineering,
National Institute of Technology,
Hakodate College

SUEMATSU
Noriharu

A Study of delay-sensitive accessnetwork configuration using widely
H30/A12frequency selectable optoelectronics
devices

YOSHIMOTO Naoto
Faculty of Science and Technology,
Chitose Institute of Science andTechnology

OTSUJI
TaiichiSingle and coupled hard-type
oscillators using resonant tunneling
H30/A13
diodes and their application to THz
signal processing

MAEZAWA Koichi
Graduate School of Science andEngineering,
University of Toyama

OTSUJI
Taiichi

Loss Analysis of High Efficient
H30/A14
Contactless Power Transmission

INAMORI Mamiko
Department of Electrical andElectronic Engineering,
Tokai University

KAMEDA
SuguruSAKAI Nobuyuki
Graduate School of Arts Letters,
Tohoku University

SHIOIRI
SatoshiTERAMOTO Wataru
Graduate School of Social andCultural Sciences,
Kumamoto University

SAKAMOTO
Shuichi

Study of difference between monaural MORIKAWA Daisuke
H30/A17 listening and binaural listening on
Faculty of Engineering,sound space perception
Toyama Prefectural University

SAKAMOTO
Shuichi

H30/A15

Study on method for modulating
emotional experience by choice

Modulation of peripersonal space
H30/A16 representation by self-motion
information

Emergency vital measurement using
H30/A18 flexible silk-fiber electrode underelectromagnetic environment

TORIMITSU Keiichi
Research Organization of ElectricalCommunication,
Tohoku University

Research on gravimetric technology
ARAYA Akito
H30/A19 for monitoring volcanic activities using Earthquake Research Institute,an optical fiber network
The University of Tokyo

Hardware Technology for Brain
H30/A20
Computing and its Applications

SATO Shigeo
Research Institute of ElectricalCommunication,
Tohoku University

SUEMATSU
Noriharu

YOSHIDA
MasatoSATO
Shigeo

79

2018

Grant
NumberTitle of Research

Principal Investigator

Effect of multi-sensory information on
OHTANI Tomoko
the sense of presence andH30/A21
Art Media Center,verisimilitude on audio-visualTokyo University of the Arts
information

Jorge Alberto
Trevino Lopez

SUGIYASU Kazuya
Development of Tsunami Evacuation
International Research Institute of
H30/A22 Guidance Support System used by IoT
Disaster Science,
Technology
Tohoku University

TAKAHASHI
Hideyuki

Improving sound source localization
H30/A23 with measurement in realenvironments

KOMATANI Kazunori
The Institute of Scientific andIndustrial Research,
Osaka University

KITAMURA
Yoshifumi

Research on development of flexible
H30/A24 pressure sensors based on PVDF thinfilms

TADAKI Daisuke
Research Institute of ElectricalCommunication,
Tohoku University

TADAKI
Daisuke

Influence of speaker's movie of speech OHTANI Tomoko
H30/A25 utterance on the intelligibility and
Art Media Center,
serial recall task
Tokyo University of the Arts

Basic study on Perceptual User
H30/A26
Interfaces for Intercation with IoT

OMATA Masaki
Graduate Faculty of Interdisciplinary
Research,
Yamanashi University

SAKAMOTO
ShuichiKITAGATAGen

H30/A27

A Study on Super High Performance
Disaster Resilient Network Control

UTSUMI Satoshi
KITAGATA
Faculty of Symbiotic Systems Science,
Gen
Fukushima University

H30/A28

Brain-like Integrated System using
Thin-Film Devices

KIMURA Mutsumi
Faculty of Science and Technology,
Ryukoku University

HORIO
YoshihikoHardware security technologies for
IoT

OGUMA Hiroshi
Department of Electronics andComputer Engineering,
National Institute of Technology,
Toyama College

HOMMA
NaofumiSATO Fumiaki
Faculty of Science,
Toho University

OHORI
Atsushi

H30/A29

Research on advanced IoT
H30/A30 infrastructure based on Intelligent
Edge

80

Research
Collaborator
of RIEC

2018

Grant
NumberTitle of Research

Study on knowledge acquisition and
H30/A31 utilization for the diversifying
information networks

Principal Investigator

Research
Collaborator
of RIEC

UEDA Hiroshi
Academic Center for Computing andMedia Studies,
Kyoto University

KINOSHITA
Tetsuo

H30/A32

A Malware Detection System for
Secure Campus BYODs

SATOH Akihiro
Information Science Center,
Kyushu Institute of Technology

KITAGATAGen

H30/A33

Research of human life support basedon agent IOT

UCHIYA Takahiro
Information Technology Center,
Nagoya Institute of Technology

KINOSHITA
Tetsuo

H30/A34

Development of Metal Source/Drain
CMOS on Ge-on-Insulator

NAKASHIMA Hiroshi
Global Innovation Center,
Kyushu University

SAKURABA
Masao

Research about quantum devices
utilizing phonon

TAKADA Shintaro
National Metrology Institute of Japan,
OTSUKA
Research Institute for PhysicalTomohiro
Measurement,
National Institute of Advanced
Industrial Science and Technology

H30/A35

Effect of sample geometry on thedamping mechanism of CoFeB
magnetic thin films with
H30/A36perpendicular easy axis using vectornetwork-analyzer ferromagnetic
resonance spectroscopy

Eli Christopher Inocencio Enobio
Department of Physics,
Mindanao State University-Iligan Institute of Technology

FUKAMI
Shunsuke

KANAYA Haruichi
Research of on-chip terahertz antenna Graduate School of Information
H30/A37
for ultra-wideband communication
Science and Electrical Engineering,
Kyushu University

SUEMATSU
Noriharu

YOSHIDA Satoshi
Research Field in Engineering,
Science and Engineering Area,
Research and Education Assembly,
Kagoshima University

MOTOYOSHI
Mizuki

H30/A38

Millimeter-wave array antenna using
multi-layered substrate

Development of a Wideband 2-GHz
H30/A39 Sampl/Hold Circuit for dtectiong
atmospheric water vapor

KAWAGUCHI Noriyuki
Mizusawa VLBI Observatory,
SUEMATSU
National Astronomical Observatory of Noriharu
Japan

Mechanism and design of film-type
H30/A40 electromagnetic noise suppressor for
SHF band

MUROGA Sho
Graduate School of Engineering
Science,
Akita University

HASHI
Shuichiro

81

2018

Grant
NumberTitle of Research

Quantification of basic visual
H30/A41 properties in high dynamic range
scenesPrincipal Investigator

NAGAI Takehiro
School of Engineering,Tokyo Institute of Technology

KURIKI
Ichiro

H30/A42

A new congestion-based congestion
control for the Internet

UTSUMI Satoshi
KITAGATA
Faculty of Symbiotic Systems Science,
Gen
Fukushima University

H30/A43

Research for Agent-BasedManagement Support of IoT Services

TANIMURA Yusuke
Graduate School of Medicine,
Tohoku University

KINOSHITA
TetsuoKOBAYASHI Kensuke
Graduate School of Science,
Osaka University

FUKAMI
Shunsuke

Precise Solid State Science and its
H28/B01 Device Applications via Controlling
Charge and Spin of Electrons

SAKAI Osamu
Various media of particle-fluid hybrid
Department of Electronic Systems
H28/B03 system with charging effects and theirEngineering,potential functions
The University of Shiga Prefecture

82

Research
Collaborator
of RIEC

SATO
ShigeoVisual mechanisms for SHITSUKAN
H28/B04
perception.

OKAJIMA Katsunori
Faculty of Environment andInformation Sciences,
Yokohama National University

KURIKI
IchiroTechnical fusion of industrial
programming language development
H28/B07
and academic research on
programming languages

MATSUMOTO Yukihiro
Board,
Ruby Association

UENO
Katsuhiro

Application study of Microwave andH28/B08 Laser Aided Synthetic Aperture
Radar

KOGI Yuichiro
Department of Engineering,
Fukuoka Institute of Technology

YASAKA
HiroshiConstructing next-generation
academic community that applies
H28/B09
human-computer interaction
researches

SAKAMOTO Daisuke
Graduate School of Information
Science and Technology,
Hokkaido University

KITAMURA
Yoshifumi

Magnetic Field Measurement System
H28/B10
using Magneto-optical Effect

ISHIYAMA Kazushi
Research Institute of ElectricalCommunication,
Tohoku University

ISHIYAMA
Kazushi

2018

Grant
NumberTitle of Research

Principal Investigator

Research
Collaborator
of RIEC

Asian HCI Research Community
H28/B11Development

KITAMURA Yoshifumi
Research Institute of ElectricalCommunication,
Tohoku University

KITAMURA
Yoshifumi

Novel device applying chemical
H28/B13 sensors for multi-parametermeasurement

MIYAMOTO Ko-ichiro
Graduate School of Engineering,Tohoku University

HIRANO
Ayumi

Research on information quality andH28/B14
value

SHIOIRI Satoshi
Research Institute of ElectricalCommunication,
Tohoku University

SHIOIRI
SatoshiResearch on magnetic device foradvanced communications equipment
H29/B02
by observation and control ofmicrostructure of magnetic material

IKEDA Shinji
Faculty of Production Systems
Engineering and Sciences,
Komatsu University

ISHIYAMA
KazushiCHIKYOW Toyohiro
Study on Semiconductor Device andCenter for Material Research by
H29/B03 its Integrated Electronics Systems for Information Integration ,High Efficiency Energy Utilization
National Institute for Materials
Science

HANYU
Takahiro

Research on new concept devices with
WATANABE Heijinano materials / silicon integrated
H29/B05
Graduate School of Engineering,
circuit hybrid technology and its
Osaka University
application for information processing

HANYU
Takahiro

Smart Spectrum and Its Applications
for IoT Era

FUJII Takeo
Advanced Wireless andCommunication Research Center,
The University of ElectroCommunications

KAMEDA
SuguruAdvanced high-frequency circuit
H29/B07 technology for realizing wireless IoT
and its application

ITOH Nobuyuki
Faculty of Computer Science andSystems Engineering,
Okayama Prefectural University

SUEMATSU
Noriharu

Full-Coherent Communication andMeasurement Systems Aiming at
H29/B08
Seamless Interface Between Lightand Micro-Waves

TSUCHIDA Hidemi
Electronics and Photonics ResearchInstitute,
National Institute of Advanced
Industrial Science and Technology

HIROOKA
Toshihiko

H29/B06

Spatial User Interface by
YAMAMOTO Goshiro
H29/B09 Understanding Human's Physical and Kyoto University Hospital,
Spatial Behaviors
Kyoto University

TAKASHIMA
Kazuki

83

2018

Grant
NumberTitle of Research

Research
Collaborator
of RIEC

SAKURAI Kenzo
Faculty of Liberal Arts,
Tohoku Gakuin University

SUZUKI
Yôiti

Search Science: an interdisciplinary
H29/B12endeavor

TSENG, Chia-Huei
Research Institute of ElectricalCommunication,
Tohoku University

TSENG
Chia-Huei

Research on Declarative HighH29/B13 Performance Computing Framework
and Its Applicaion

OHORI Atsushi
Research Institute of ElectricalCommunication,
Tohoku University

OHORI
Atsushi

Neuromorphic computing utilizing
H29/B15
novel solid-state devices and circuits

FUKAMI Shunsuke
Research Institute of ElectricalCommunication,
Tohoku University

FUKAMI
Shunsuke

Study on the analysis of
H29/B16 electromagnetic waves in security
hardware

NAGATA Makoto
Graduate School of Science Technology HOMMA
and Innovation,
NaofumiKobe University

H29/B11Multisensory integration including
self-motion perception

HANYU Takahiro
International Research Collaboration Research Institute of Electrical
H29/B17of Brainware LSI and Its Applications Communication,
Tohoku University

HANYU
Takahiro

HOMMA Naofumi
Research Institute of ElectricalCommunication,
Tohoku University

HOMMA
NaofumiHAYASHI Yuichi
Graduate School of Information
Science,Nara Institute of Science andTechnology

HOMMA
NaofumiUEHARA Yoichi
New developments and applications ofResearch Institute of Electrical
H29/B20 semiconductor technologies based on
Communication,
university-industry collaboration
Tohoku University

UEHARA
YoichiAdvanced Hardware Security
H29/B18
Technology

H29/B19

EM Information Leakage from Smart
Devices and Its Countermeasure

Development of wide area vocal
H29/B21system for crows' behavior control

84

Principal Investigator

TSUKAHARA Naoki
Center for Bioscience Research and
Education,
Utsunomiya University

KITAMURA
Yoshifumi

2018

Grant
NumberTitle of Research

Principal Investigator

Research
Collaborator
of RIEC

Asynchronous Stochastic Computing
H29/B23for Brainware System

ONIZAWA Naoya
Frontier Research Institute forInterdisciplinary Sciences,
Tohoku University

HANYU
Takahiro

Study of functional piezoelectric
H30/B01 materials and applications toadvanced communication devices

KANAI Hiroshi
Graduate School of Engineering,Tohoku University

SUZUKI
Yôiti

Magnetic devices utilizing material
H30/B02
functionality

ISHIYAMA Kazushi
Research Institute of ElectricalCommunication,
Tohoku University

ISHIYAMA
KazushiInter-Tohoku District Spinics
Research

YAMAGUCHI Masahiro
Graduate School of Engineering,Tohoku University

ISHIYAMA
KazushiFormation of spatial and temporal
H30/B04 structures and various reactive fields
in plasma flows

ANDO Akira
Graduate School of Engineering,Tohoku University

ISHIYAMA
KazushiPhysics and application of spin
H30/B05
dynamics in solids

MATSUKURA Fumihiro
Advanced Institute for Materials
Research,
Tohoku University

KANAI
Shun

H30/B06 Research on optical space mode

HAMAMOTO Kiichi
Faculty of Engineering Sciences,
Kyushu University

YOSHIDA
MasatoFunctionalization of oxide surfaces
H30/B07and its application to nanodevices

HIROSE Fumihiko
Graduate School of Science andEngineering,
Yamagata University

HIRANO
Ayumi

Establishment of information science
approach and psychological
H30/B08 verification method for intellectual
productivity acquisition in group
discussion

ITOH Yuichi
Graduate school of Information
Science and Technology,
Osaka University

TAKASHIMA
KazukiBig data collection and analysis on
H30/B09 mental and behavioral states ofcompanion and wild animals

TOUYAMA Hideaki
Faculty of Engineering,
Toyama Prefectural University

KITAMURA
Yoshifumi

H30/B03

85

2018

Grant
NumberTitle of Research

Principal Investigator

Research on understanding of spatial OTANI Makoto
H30/B10 auditory perception and enhancement Graduate School of Engineering,of spatial audio technology
Kyoto University

H30/B11SUZUKI
Yôiti

KITAMURA
Yoshifumi

Establishments of Optimal Design and
SEKIYA Hiroo
High-Efficiency Control Scheme for
H30/B12
Graduate School of Engineering,High-Frequency Wireless Power
Chiba University
Transfer Systems

HORIO
YoshihikoHigh-dimensional neural dynamics to
H30/B13 develop next-generation neural
hardware

HIROSE Akira
Graduate School of Engineering,Tokyo University

SATO
ShigeoH30/B14 Future Office Space and Interaction

KITAMURA Yoshifumi
Research Institute of ElectricalCommunication,
Tohoku University

KITAMURA
Yoshifumi

H30/B15

86

Creating smart and informative
society for the elderly

CHINTAKOVID/Thippaya
Department of Information
Technology, Faculty of Information
Technology,
King Mongkut's University ofTechnology North Bangkok

Research
Collaborator
of RIECSUGIYAMA Tomoyuki
The study of interactive entertainment
Media Science Lab,systems for drone race
Digital Hollywood University

KITAMURA
Yoshifumi

AOKI Naofumi
Studies on the high value addition for
Graduate School of Information
H30/B16 digital contents based on the
Science and Technology,
enrichment of media technologies
Hokkaido University

SUZUKI
Yôiti

Development of swarm intelligence
optimization based on nonlinear
H30/B17
dynamical system theory and its
application

JINNO Kenya
Faculty of Knowledge Engineering,Tokyo City University

HORIO
Yoshihiko

Empirical Research on
H30/B18 Infrastructurization of Ubiquitous
Computing

MURAO Kazuya
College of Information Science andEngineering,
Ritsumeikan University

TAKAHASHI
Hideyuki

Improvement of deep learning for
H30/B19 speech and music information
processing

CHIBA Yuya
Graduate School of Engineering,Tohoku University

Jorge Alberto
Trevino Lopez

2018

Grant
NumberTitle of Research

Principal Investigator

Research
Collaborator
of RIECTSUTSUI Ken-Ichiro
Understanding the brain mechanisms
Graduate School of Life Sciences,of "mind"
Tohoku University

SHIOIRI
Satoshi

Evaluation of sound information
Sato Hayatotransmission performance in urban
H30/B21
Graduate School of Engineering,
spaces on the basis of human auditory
Kobe University
modelsSUZUKI
Yôiti

H30/B20

H29/S1

Project for creation ofinterdisciplinary, advanced scienceand technology based on coherent
wave

MIMURA Hidenori
Research Institute of Electronics,
Shizuoka University

YASAKA
Hiroshi

H29/S2

Collaborative Research on
Nano-electronics

UDAKA Katsuyuki
Research Organization for
Nano & Life Innovation,
Waseda University

UEHARA
Yoichi

H29/S3Innovation of ElectricalCommunication Systems based on
DesignSAWARAGI Tetsuo
Graduate School of Engineering,
Kyoto University

KITAMURA
Yoshifumi

AI and Human Studies

Su-Ling Yeh
AI and Advanced Robotics Center,
Institute Graduate School National
Taiwan University

SHIOIRI
Satoshi

H30/SI1

87

2018
㸳. Symposium organized by the InstituteThis Symposium is planned to exchange relevant information on current important topics
concerning Electrical Eng., Electrical Communications, Electronic Eng., and Information Eng.
Many related researchers inside and outside Tohoku University participate the Symposium
and stimulate discussion.

Symposium In Past
㻌㻌
1

Title

Date

Quantum Electronics of Liglht Waves and Micro Waves

Feb. 6- 8, 1964

Magnetic Recording

Feb.14-15, 1964

2 Ultra-High Frequency Acoustelectronics

Feb.11-12, 1965

3 Artificial lntelligence

Mar. 8- 9, 1966

4 Thin Film Electronics

Jan.26-27, 1967

5 Crystal GrowthDec. 19-20, 1967

6 1968 Sendai Svmoosium on Acoustelectronics

Aug.19-20, 1968

7 Current Status and Future Trends of Superconductivitv

Jan.22-24, 1970

8 Soeech Information Processing

Feb.24-26, 1971

9 Surface Acoustic Wave Technology

May.25-26, 197210

Liquid Crystals · Their Molecular Orientations and Application to
Display Devices

11 Computer Network
12

The Memorial Symposium on the 40th Anniversarv of the Foundation of
RIEC

Dec.13-14, 1974
Mar.17-18, 1975
Sep.25-26, 1975

13 Application of Amorphous Ferromagnetic Materials

Mar.10-11, 1977

14 Stoichiometry of Compound Crystals

Nov.24-25, 1977

15 Submillimeter Waves

Nov.16-17, 1978

16 Solid State Chemical Sensors

Feb. 1- 2, 1980

17 Graph Theory and Algorithms

Oct.24-25, 1980

18 Perpendicular Magnetic Recording

Mar.11-12, 1982

19 Approach to Optical Computer

Mar.10-11, 1983

20 Plasma Non-Linear Phenomena - Basic Problems for Fusion Plasmas

Mar. 8- 9, 1984

21 New Computer Architecture

Jul.25-26, 1985

22 Guided Wave Technology and Its Application at Mid-Infrared

Mar.13-14,1986

23 Physics and Applications of Tunnelling Phenomena

Mar.12-14, 1987

24 Biomagnetics and Bioelectronics

Feb.26-27, 1988

25 Ultrasonic Electronics - New Applications of Piezoelectricity

Feb. 2- 3, 1989

26 Boundaries between Light and Electromagnetic Wave

Feb. 1-2, 1990

88

2018
Title

Date

27 Issues and Realization of Pattern Recognition and Understanding

Feb.28-Mar.1,1991

28 Discrete Algorithms

Oct.17-18, 1991

29

Perspective for New Computing Paradigm

Feb. 4- 5, 1993

Current Status and Future Prospects of System Control

Mar. 3- 4, 1993

30 Future Prospects of Electron Beam Devices

Nov. 1- 2, 1993

31 Discharge and EMC

Dec.20-21, 1994

32 Statistical Physics and Information Science

Mar.22-23,1995

33 Photo-and Plasma-Excited Processes on Surfaces

Nov.30-Dec.1,1995

34 Nano Spinics and Power Electronics

Feb.15-16, 1996

35 Potential Formation and Related Nonlinear Phenomena in Plasmas

Sep.17-19, 1996

36 New Trend in Ultrasonic Measurements

Feb. 3- 4, 199737

Toward the Realization of the High-Definition Multi-Media
Communication

Nov. 4- 6, 1997

89

2018
International Symposium Organized by the Institute
㻌
1
2
3
4
5
6

Title
Intrinsic Josephson Effect and THz Plasma Oscillation in High Tc
Superconductors
Design and Architecture of Information Processing Systems Based on
The Brain Information Principle
Novel Techniques and Applications of Millimeter-Waves
The International Joint Conference on Silicon Epitaxy andHeterostructures
International Workshop on Photonic and Electromagnetic Crystal
Structures
Physics and Application Spin Related Phenomena in Semiconductors

Date
Feb.23-25, 1997
Mar.16-18, 1998
Dec.14-16, 1998
Sep.13-17, 1999
Mar.8-10, 2000
Sep.13-15, 2000

7 Rewriting in Proof and Computation

Oct.25-27, 2001

8 Nonlinear Theory and its Applications

Oct.28-Nov.1, 2001

9 New Paradigm VLSI Computing

Dec.12-14, 2002

10 Ultra High Density Spinic Storage System
3rd International Workshop on New Group IV (Si-Ge-C)
11
Semiconductors
3rd International Workshop on High Freaqency Micromagnetic Devices
12and Materials (MMDM3)
4th International Conference on Silicon Epitaxy and Heterostructures
13(lCSl-4)
1st International WorkShop on New Group IV Semiconductor
14
Nanoelectronics
GSIS International Symposium on Information Sciences of New Era:
15
Brain, Mind and Society
The 1st RIEC International Workshop on Spintronics -Spin Transfer
16
Phenomena4th International Workshop on High Frequency Micromagnetic Devices
17
and Materials (MMDM4)
4th International Conference on Physics and Applications of18
Spin-Related Phenomena in Semiconductors (PASPS-lV)
2nd International Workshop on New Group IV Semiconductor
19
Nanoelectronics
20 2nd RIEC International Workshop on Spintronics

Oct.23-24, 2003

21 Japan-China Joint Conference on acoustics, JCA2007
International Conference on Discovery Science/
22
International Conference on Algorithmic Learning Theory
23 The 3rd RIEC International Workshop on Spintronics
3rd International Workshop on New Group 䊣Semiconductor
24
Nanoelectronics
25 International Workshop on Nanostructures & Nanoelectronics
The 18th International Symposium on Algorithms and26
Computation(ISAAC2007)
International Interdisciplinary-Symposium on Gaseous and Liquid27㻌Plasmas (ISGLP 2008)㻌
4th International Workshop on New Group IV Semiconductor
28
Nanoelectronics

Jun.4-6,2007

90

Oct.12-13, 2004
Apr.11-12, 2005
May 23-26, 2005
May 27-28. 2005
Sep.26-27, 2005
Feb.8-9, 2006
May 8,2006
Aug.15-18,2006
Oct.2-3,2006
Feb.15-16,2007

Oct.1-4,2007
Oct. 31-Nov.1,2007
Nov.8-9,2007
Nov.21-22,2007
Dec.17-19,2007
Sep.5-6,2008㻌
Sep.25-27,2008

2018
Title

Date

29㻌 The 4th RIEC International Workshop on Spintronics㻌

Oct.9-10,2008

30 Global Symposium on Millimeter Waves 2009 (GSMM2009)

Apr.20-22,2009

31 Mini R.I.E.C. workshop on multimodal perception

Apr.24,200932 The 4th International Symposium on Ultrafast Photonic Technologies

Aug.4-5,2009

PIMRC2009 Personal Indoor and Mobile Radio Communications
Symposium 2009
2nd RIEC-CNSI Workshop on Nanoelectronics,Spintronics and
34
Photonics (5th RIEC Symposium on Spintronics)
International Workshop on the principles and applications of spatial
35
hearing 2009 (IWPASH2009)
5th International Workshop on New Group IV Semiconductor
36
Nanoelectronics
33

Sep.13-16,2009
Oct.22-23,2009
Nov.11-13,2009
Jan.29-30,2010

37 6th RIEC International on Spintronics

Feb.5-6,2010

38 2nd International Workshop on Nanostructure & Nanoelectronics

Mar.11-12,2010

39 2nd RIEC International Symposium on Graphene Devices (ISGD2010)

Oct.27-29,2010

40 9th Japan-Korea Symposium on Surface Nanostructures

Nov.15-16,2010

41 The 7th RIEC International Workshop on Spintronics

Feb.3-4,2011

42

The 42nd RIEC International Symposium
12th International Multisensory Research Forum (IMRF2011)

Oct.17-20,2011

43 The 8th RIEC International Workshop on Spintronics

Feb.2-3,2012

44 The Sixth International Symposium on Medical, Bio- and Nano-Electronics

Mar.8,2012

45 3rd International Workshop on Nanostructures & Nanoelectronics

Mar.21-22,2012

46 9th RIEC International Workshop on Spintronics

May 31-Jun.2,2012

47
48
49
50
51

The 1st International Workshop on Smart Technologies for Energy,
Information and Communication (STEIC2012)
Technical University of Dresden and Tohoku University Symposium2012
The 1st RIEC International Symposium on Brain Functions and Brain
Computer
Tohoku – Harvard Joint Workshop New Directions in Materials foranoelectronics,Spintronics and Photonics
㸦10th RIEC International Workshop on Spintronics㸧
11th RIEC International Workshop on Spintronics &3rdCSISInternationalSymposiumonSpintronics-based VLSIs

Oct.18-19,2012
Nov.2,2012
Nov.15-16,2012
Jan.15-16,2013
Jan.31-Feb.1,2013

52 7th International Symposium on Medical, Bio- and Nano-Electronics

Mar.7,2013

53 6th Global

Apr.22-23,2013

54

Symposium on Millimeter Wave 2013

The 2nd RIEC International Symposium on Brain Functions and Brain
Computer

55 8th International Symposium on Medical,Bio- and Nano-Electro

Feb.21-22,2014
Mar.6-7,2014

91

2018
Title

Date

56 5th International Workshop on Nanostructures and Nanoelectronics

Mar.6-7,2014

57 12th RIEC International Workshop on Spintronics

Jun.25-27,2014

58 The IEEE International Conference on Microwave Magnetics

Jun.29-Jul.2,2014

59 RIEC International Symposium on Perception and Communication

Jul.24,2014

60 APMC 2014(2014 Asia-Pacific Microwave Conference)

Nov.4-7,2014

61

The 3rd RIEC International Symposium on Brain Functions and Brain
Computer

62 International Symposium on Brainware LSI
The 9th International Symposium on Medical, Bio- andNano-Electronics
The 6th International Workshop on Nanostructures and64
Nanoelectronics
63

65 RIEC International Symposium on Vision and Cognition
The 23rd Symposium of the International Colour Vision Society(ICVS 2015)
RIEC International Symposium on Computer Graphics and Interactive
67
Techniques: New Horizon
66

68 13th RIEC International Workshop on Spintronics
69

The 4th RIEC International Symposium on Brain Functions and Brain
Computer

70 International Symposium on Brainware LSI
71

The 10th International Symposium on Medical, Bio- and NanoElectronics

72 The 7th International Workshop on Nanostructures and Nanoelectronic73

RIEC International Symposium on Ultra-Realistic Interactive Acoustic
Communications 2016

Feb.18-19,2015
Mar.2-3,2015
Mar.2-4,2015
Mar.2-4,2015
Mar.20,2015
Jul. 3-7, 2015
Sep. 26-27,2015
Nov. 18-20,2015
Feb. 23-24,2016
Feb. 26-27,2016Mar. 1-3,2016Mar. 1-3,2016
May 20-21,2016

RJUSE TeraTech-2016: The 5th Russia-Japan-USA-Europe Symposium
74 on Fundamental & Applied Problems of Terahertz Devices & Technologies Oct.31-Nov.4,2016(RIEC International Symposium on Fundamental & Applied Problems of
Terahertz Devices & Technologies)
75 Dependable Wireless Workshop 2016

Nov.9-10,2016

76 14th RIEC International Workshop on Spintronics

Nov.17-19,2016

77 The 4th RIEC International Symposium on Brainware LSI

Feb. 24-25,201778

The 5th RIEC International Symposium on Brain Functions and Brain
Computer

79 RIEC International Workshop on Biomedical Optics 2017

Feb. 27-28,2017Mar. 6,2017

The 8th RIEC International Workshop on Nanostructures andNanoelectronics

Mar. 6-7,2017

81 RIEC Russia-Japan Joint International Microwave Workshop 2017

Oct.19-20,2017

80

92

2018
Title
International Symposium on Photonics and Optical Communications
㸦ISPOC 2017㸧
RIEC International Symposium on Experience Design and Cognitive
83
Science㸦The Second ACM SIGCHI Asian Symposium㸧
82

84 15th RIEC International Workshop on Spintronics
85

The 6th RIEC International Symposium on Brain Functions and Brain
Computer

Date
Oct.25-26,2017
Nov. 18-19,2017
Dec.13-14,2017
Feb. 1-2,2018

86 The 5th International Symposium on Brainware LSI

Feb. 23-24,201887 The 9th International Workshop on Nanostructures and Nanoelectronics

Mar. 1-2,2018

Japan-Korea International Symposium on Magnetic Devices andMaterials

Aug.24,2018

89 International Symposium on Universal Acoustical Communication 2018

Oct.22-24,2018

90 Asian Wireless Power Transfer Workshop (AWPT2018)

Nov. 2-4,2018

88

91 3rd Japan-EU Flagship Workshop on Graphene and Related 2D Materials Nov. 19-21,2018
The 2nd Tohoku-NTU U Symposium on Interdisciplinary AI and Human
Studies
The 14th International Conference on Intelligent Information Hiding and93
Multimedia Signal Processing (IIH-MSP2018)
RIEC International Symposium on Human-Computer Interaction
94
㸦The Third ACM SIGCHI Asian Symposium㸧
92

95 16th RIEC International Workshop on Spintronics
96

The 7th RIEC International Symposium on Brain Functions and Brain
Computer

97 The 6th International Symposium on Brainware LSI

Nov. 24,2018
Nov. 26-28,2018
Dec.12-13,2018
Jan.9-10,2019Feb. 22-23,2019Mar. 1-2,2019

98 The 10th International Workshop on Nanostructures and Nanoelectronics Mar. 6-7,2019

93

2018
6.

Study Groups on Electrical Communication

Study Groups on Electrical Communication are organized to solve scientific and technologicalproblems and to promote research and development through the collaboration of the ResearchInstitute of Electrical Communication, Group of ECEI㸦Electrical Engineering, Communication
Engineering, Electronic Engineering, and Information Engineering ) in Graduate Schools ofEngineering, Information Sciences, Biomedical Engineering, related scientists and engineers insideand outside Tohoku University. The Study Groups on Electrical Communication consist of 15
Sub-Groups as listed, to deal with specific subjects. Each Sub-Group holds workshops and theabstracts of the workshops are published annually in The Record of Electrical and Communication

Engineering Conversazione Tohoku University.
Many scientists and engineers not only from universities but also from government laboratories
and industries attend the workshops, present papers, and discuss issues actively. We are pleased toprovide information on these activities upon request. Please contact the General Chairman or each
Sub-Group Chairman for general information or more specific questions.

Electromagnetic and Optical Waves Engineering
Chair

Prof. Hirohito Yamada

Manager

Associate Prof.

Nobuyuki Matsuda

Acoustic Engineering
Chair

Prof. Akinori Ito

Manager

Associate Prof.  Shuichi Sakamoto

Manager

Associate Prof.  Takashi Nose

Sendai "Plasma Forum"
Chair

Prof. Akira AndoManagerProf.  Toshiro Kaneko

Sendai Seminar on EMC
ChairProf. Hideaki Sone

ManagerProf. Masahiro Yamaguchi

94

2018
Computer Science
Chair

Prof.

Manager

Associate Prof.  Kazutaka Matsuda

Eijiro Sumii

Systems Control
Chair

Prof. Makoto Yoshizawa

Manager

Associate Prof.   Norihiro Sugita

Information-biotronics
Chair

Prof.

Manager

Associate Prof.   Koichiro Miyamoto

Ayumi Hirano

Spinics
Chair

Prof. Masahiro Yamaguchi

Manager

Associate Prof.   Shuichiro Hashi

Manager

Assistant Prof.   Tomoyuki Ogawa

New Paradigm Computing
Chair

Prof. Masanori Hariyama

Manager

Associate Prof. 

Masanori Natsui

Ultrasonic Electronics
Chair

Prof. Hiroshi Kanai

Manager

Associate Prof .  Mototaka Arakawa

95

2018
Brainware
Chair

Prof.  Akio Ishiguro

Manager

Associate Prof.  Takeshi Kano

Mathematical Physics and its Application to Information Sciences
Chair

Prof.

Manager

Associate Prof.  Masayuki Ohzeki

Kazuyuki Tanaka

Biocybernetics and Bioinformatics
Chair

Prof. Satoshi Shioiri

Manager

Associate Prof.  Takeshi Obayashi

Manager

Associate Prof.  Yasuhiro Hatori

Nanoelectronics and Spintronics
Chair

Prof. Shigeo SatoManager

Associate Prof.  Syunsuke Fukami

Advenced Information Communication Engineering
Chair

Prof. Tetsuo Kinoshita

Manager

Associate Prof.

96

Gen Kitagata

2018
7.

International Activities

Many of the staff in RIEC contribute to the development of technology and science inthe world by serving as editors of referees of international journals or by chairing or
programming international conferences. In some fields in electronics, electricalcommunications, or information engineering RIEC serves as a Center of Excellence(COE), which attracts researchers and students from all over the world every year.
Several academic exchange programs with foreign colleges or institutes are in operation.
International academic exchange programs‫ ە‬Institute of Physics, Polish Academy of Sciences (Poland)‫ ە‬IHP-Innovations for High Performance Microelectronics (Germany)‫ ە‬The Interdisciplinary Center on Nanoscience of Marseille,
National Center of Scientific Research (France)‫ ە‬Institute of Semiconductors, Chinese Academy of Sciences (China)‫ ە‬WINLAB, Rutgers University (U.S.A.)‫ ە‬University of Vigo (Spain)‫ ە‬Research and Educational Center͆Photonics and Infrared Technology͇and Institute ofRadio Electronics and Laser Technology , Bauman Moscow State Technical University(Russia)‫ ە‬Research Laboratory of Electronics and Microsystems Technology Laboratories,
Massachusetts Institute of Technology (U.S.A.)‫ ە‬St. Petersburg Electrotechnical University (Russia)‫ ە‬Telecom Paris Tech (France)‫ ە‬Faculty of Physics, M.V.Lomonosov Moscow State University (Russia)‫ ە‬Center for Artificial Intelligence and Advanced Robotics,
National Taiwan University (Taiwan)‫ ە‬University of Calfornia, Santa Barbara (U.S.A.)‫ ە‬The University of York (U.K.)‫ ە‬The Technische Universität Dresden(Germany)‫ ە‬Berlin Institute of Technology(Germany)‫ ە‬National Tsing Hua University(Taiwan)‫ ە‬Harvard University (U.S.A.)‫ ە‬The University of Kaiserslautern (Germany)‫ ە‬Johannes Gutenberg University (Germany)‫ ە‬Chemnitz University of Technology (Germany)‫ ە‬University of Regensburg (Germany)‫ ە‬Carl von Ossietzky University of Oldenburg (Germany)‫ ە‬Purdue University(U.S.A.)‫ ە‬University of Salamanca (Spain)

97

2018
International journals in which a staff in RIEC participates as an editor
1
2
3
4
5
6
7
8
9
10
11
12
13

IACR Transactions on Cryptographic Hardware and Embedded Systems
IEICE Electronics Letter (ELEX)
IEICE Transactions on Communications
IEICE Transactions on Communications (EB)International Journal of Energy, Information and Communications
Japanese Journal of Applied Physics ≉ูྕJournal of Cryptographic Engineering
Neural Networks
Nonlinear Theory and Its Applications, IEICE
Nonlinear Theory and Its Applications, IEICE (NOLTA)
Optical Review
Scientific Reports (Nature Publishing Group)
Soft Robotics

International conferences programmed by a staff in RIEC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

98

12th Global Symposium on Millimeter Waves (GSMM) 201915th RIEC International Workshop on Spintronics
2018 International Symposium on Nonlinear Theory and Its Applications
25th IEEE International Symposium on Asynchronous Circuits and Systems
ACM Conference on Interactive Surfaces and Spaces 2018
ACM SIGGRAPH Conference and Exhibition on Computer Graphics and Interactive
Techniques in Asia 2018
ACM Symposium on Spatial User Interface 2018
ACM Symposium on Virtual Reality Software and Technology (VRST) 2018
ACSIN14
Asian CHI Symposium 2019: Emerging HCI Research Collection
Asia-Pacific Microwave Conference 2018
Asia-Pacific Workshop on Fundamentals and Applications of Advanced Semiconductor
Devices (AWAD)
CIES Technology Forum
Compound Semiconductor Week / International Symposium on Compound
Semiconductors (CSW/ISCS2019)
European Conference on Optical Communication (ECOC)
European Material Research Society Fall Meeting (MRS-E Fall Meeting 2018)
European Microwave Week 2018
IEEE 5G World Forum (WF-5G 2018)
IEEE EDS Distinguished Lecturer
IEEE International Conference on Communications (IEEE ICC 2018)
IEEE Symposium on Computers and Communications (ISCC 2018)
IEEE Virtual Reality 2019
IFIP TC.13 International Conference on Human-Computer Interaction(INTERACT 2019)
ImPACT International Symposium on Spintronics Memory, Circuit and Storage

2018
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57

Int. Conf. on Micro- and Nano-Electronics, in Zvenigorod (ICMNE2018)
International Conference on Recent Progress in Graphene Research (RPGR2019)
International Conference on Artificial Reality and Telexistence and Eurographics
Symposium on Virtual Environments (ICAT-EGVE 2018 )International Conference on Cryptographic Hardware and Embedded Systems 2018
International Conference on InfraRed, MilliMeter Wave and TeraHerz(IRMMW-THz 2018)
International Conference on Solid State Devices and Materials
International Conferences on Modern Materials & Technologies
in Montecatini Terme (CIMTEC 2020)
International Electorical Device Meeting
Optical Fiber Communication Conference (OFC)
Optical Nanofibre Applications: From Quantum to Bio Technologies
Opto-Electronics and Communications Conference (OECC)
RIEC International Symposium on Photonics and Optical Communications
Russia-Japan-USA-Europe Symposium on Fundamental & Applied Problems of
Terahertz Devices & Technologies (RJUSE 2018)
Spintronics Workshop on LSI
Stanford & Tohoku University Joint Open Workshop on
3D Transistor and its Applications
Symposia on VLSI Technology and Circuits
The 10th International Conference on Ubiquitous and Future Networks(ICUFN 2018)
The 2018 IEEE Global Communications Conference (IEEE GLOBECOM 2018)
The 2018 IEEE International Conference on Communication, Networks and Satellite(COMNETSAT 2018)
The 2018 International Communications Quality and Reliability Workshop(IEEE CQR 2018)
The 2018 International Conference on Advanced Technologies for Communications(ATC 2018)
The 2018 International Workshop on Pervasive Flow of Things that is collocated(PerFoT)
The 20th ACM International Conference on Modeling, Analysis and Simulation ofWireless and Mobile Systems (MSWiM 2018)
The 22nd IEEE International Workshop on Computer Aided Modeling and Design ofCommunication Links and Networks (IEEE CAMAD 2018)
The 2nd IEEE International Workshop on Information Flow Oriented Approaches inInternet of Things and Cyber-Physical Systems (InfoFlow 2019)the 5th ACM International Conference on Nanoscale Computing and Communication(ACS-NanoComm)
The 5th International Conference of Information and Communication Technology(ICoICT 2018)
The 6th International Conference on Emerging Internet, Data & Web Technologies(EIDWT-2018)
The 6th International Symposium on Brainware LSI
The 7th RIEC International Symposium on Brain Functions and Brain Computer
The 9th International Symposium on Adaptive Motion of Animals and Machines(AMAM2019)
The International Conference on Information Networking 2019 (ICOIN 2019)The SICE Annual Conference 2019 (SICE 2019)
99

2018
58
59
60
61

100

Tohoku-Purdue Workshop on Novel Spintronics Physics and Materials for Future
Information Processing
Tohoku-York-Kaiserslautern 6th Core-to-core Workshop on"New-Concept Spintronics Devices"
Topical Workshop on Heterostructure Microelectronics (TWHM)
When AI Meets Human Science: The 2nd Tohoku-NTU International Symposium on
Interdisciplinary AI and Human Studies

2018
8. Periodicals Published by the Institute
The Institute publishes the following two periodicals to inform readers on recent research results of
the Institute.
1. The Record of Electrical and Communication Engineering Conversazione Tohoku University
This journal aims at providing an opportunity to publish research results of the Institute as well as
the result of the Graduate School of Engineering, Information Sciences, Biomedical

Engineering.

Since the journal also aims at publishing general research activities of the Institute and of the
Graduate School

such as records of the final lectures of retiring professors, records of the InstituteSymposium, and reviews.
The name of the Journal ‘Conversazione’ is attributable to the ‘Tuesday Conversazione’ at the
Department of Electrical Engineering, which had been held once a week on Tuesday since around 1920.
Minutes of the meetings had been distributed to researchers outside of the University via various
routes and therefore some of them had been referred to as 'Records of Tuesday Electrical Engineering
Conversazione Tohoku University' with the result that they came to be treated as official publications.
Though the meeting was once interrupted by World War Two, it was restarted in 1947. In 1952, thepublication of the records was succeeded by the Institute and the records have been published asperiodicals, two or three times a year recently, since No. 1 Vol. 21 was published in July, 1952.
2. The Annual Report of Research Activity at the Research Institute of Electrical Communication,
Tohoku University
Published annually since 1995. This report details the activities of each research division andresearch facility. Also included are reports on nation-wide co-operative research projects, international
symposium and seminars organized by members of RIEC, and the reports and evaluation on the RIEC
advisory board members. English edition(digest version of Japanese edition) has been publishedsince 2007.
3. RIEC NewsAs a part of RIEC’s publication service, “RIEC News” is published.
With the 75th anniversary of the establishment of RIEC, RIEC News introduces cutting-edge’s
research and the vision of the future from RIEC’s contributions to the progression of science andtechnology in Japan. RIEC News was first launched in March 2011. In fiscal year 2018, 23th, 24st and25nd issues were published. Every issue introduces special topics such as large scale projects andSpecially-Promoted Research, etc. RIEC News also includes current information about each laboratory
and center, all kinds of RIEC events, research exchange meetings, laboratories open to the public(RIEC Open Day), etc. English version was also launched in March 2014. Further, RIEC News offers anotification service by mail whenever a new issue is released and an electronic version of every issue
published so far can be downloaded by following the link below.
http://www.riec.tohoku.ac.jp/riecnews/

101

2018

9.9.䚷Staff,
䚷Staff,Budget
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102

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2018
4. Budget
Budget Shiftmillion yen
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2SHUDWLRQ*UDQWV([WHUQDO)XQGV([SHQVHVIRU)DFLOLWLHV,PSURYHPHQWHWF‫ٹ‬Budget Summary

thousand yen
Categories

FY2014FY2015FY2016FY2017FY2018Personnel Expenses

795,601

730,537

808,066

835,904

790,118

Non-Personnel Expenses

668,941

667,582

606,599

626,824

556,937

Operation Grants Total

1,464,542

1,398,119

1,414,665

1,462,728

1,347,055

Grants-in-Aid for Scientific Research

399,311422,846

526,718

549,034

231,643

Funds for Commissioned Research

1,007,060

1,076,220

1,140,386

963,585

753,391

Donations

16,89014,49036,19040,541

54,344

Indirect Expenses

212,669

219,886

244,413220,733

134,311

1,423,261

1,513,556

1,703,294

1,553,160

1,039,378

0

0

0

0

0

359,770

20,011

0

0

0

0

0

0

0

0

Expenses for Facilities Improvement etc. Total

359,770

20,011

0

0

0

Total

3,247,573

2,931,686

3,117,959

3,015,888

2,386,433

Operation Grants

External Funds

External Funds岜Total
Expenses for Reconstruction
Expenses for Relocation
Expenses for Facilities Improvement

103

2018

External Funds
million yen
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thousand yen
Categories

FY2014FY2015FY2016FY2017FY2018Grants-in-Aid for Scientific Research

399,311422,846

526,718

549,034

231,643

Funds for Commissioned Research

1,007,060

1,076,220

1,140,386

963,585

753,391

16,89014,49036,19040,541

54,344

1,423,261

1,513,556

1,703,294

1,553,160

1,039,378

Donations
Total

104