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Research Institute of Electrical Communication
Tohoku University

h I tit t

2010/2011f El t i l C
i ti
T h k U iit
2010/2011

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CONTENTS• Greeting from the Director ………………………1• Chronology……………………………………………2• Organization …………………………………………5• Nation‑wide Cooperative Research Projects …8• Research Fields ……………………………………9• Research Division
Information Devices Division ………………11
Broadband Engineering Division…………17

Human Information Systems Division ……25
Systems & Software Division ………………32
Sponsored Division ……………………………39• Laboratory for Nanoelectronics
and Spintronics …………………………………41• Laboratory for Brainware Systems …………47• Research Center for 21st Century
Information Technology……………………53• Flexible Information System Research Center …58• Fundamental Technology Center ……………59• Management Office for Safety and Health …60• Research Activities
Study Groups on Electrical Communication …61
Symposiums Organized by the Institute …62
Periodicals Published by the Institute ……64
• Educatonal Activities……………………………65• International Activities …………………………66• RIEC Open Day ……………………………………68• Staff …………………………………………………69

Experimental equipment for Yagi-Uda Antenna（1929）2010‐2011(e)表紙BC̲2009‐2010(e)表紙BC 平成 22/09/22 16:20 ページ 2

IEEE Electrical Engineering Milestone
for Yagi-Uda AntennaIEEE Electrical Engineering Milestone
for Yagi-Uda Antenna（in Katahira Campus）

Experimental equipment for AC-bias magnetic recording（1937）

Experimental equipment for Split Anode Magnetron（1927）2010‐2011(e)01〜10p̲欧文 平成 22/09/22 16:21 ページ 1

Greeting from the Director

It would be no exaggeration to say that we owe thecivilization created between the nineteenth and thetwenty-first centuries, as represented by suchtechnologies as the telephone, television, personal
computer, mobile phone, and the Internet, to theinformation and communications industry and theelectronics industry. Moreover, in terms of GDP, whilemost of Japan’s industries have been showing little
growth, the information and communications
technology (ICT) sector has continued to expand at
an annual rate of about 7 percent.
Tohoku University’s Research Institute of ElectricalCommunication was established in 1935 in affiliation
with the School of Engineering, where pioneering
work on information and communications had alreadyresulted in breakthroughs such as the Yagi-Uda
antenna and the split-anode magnetron. Well known
both by its Japanese abbreviation “Tsuken” and by
the acronym RIEC, the Institute has contributed in nosmall measure to the progress that has been madeon telecommunications technology over the past 75
years. From its early work with weak-current
electricity, RIEC first became a leader in the field ofelectromagnetic and electronic devices. We havesince added transmission, human interface, andsoftware technologies, and today our integrated
research covers everything from devices to software.
Our organization consists of four major researchdivisions (Information Devices, Broadband
Engineering, Human Information Systems, andSystems and Software), two experimental facilities(the Laboratory for Nanoelectronics and Spintronics,
and the Laboratory for Brainware Systems), and the
Research Center for 21st Century Information
Technology, or IT21. As well as maintaining an active
partnership with industry, we also cooperate closelywith the six major courses at the Graduate Schools ofEngineering, Information Sciences and Biomedical
Engineering, in order to develop next-generation ICTwith research and education working in tandem.
In today’s global information society, smoothinterpersonal communication is of ever-increasing
importance. Furthermore, communications and1

Director Prof. Masataka NAKAZAWA
broadcasting are becoming integrated, and theresulting paradigm shift toward a new society
demands both greater information capacity and vastly
more sophisticated ICT. By refining the originality andversatility that have long been a tradition at RIEC, we
will contribute to the creation of this new society
through the development of cutting-edge technologies
designed to link people together.
Since Tohoku University became a National
University Corporation in 2004, its research institutes
have also been undergoing a transformation. In April
2010, RIEC took a further step forward when it was
promoted from a National Center for Cooperative
Research to a Joint Usage/Research Center. This is
an opportunity to demonstrate RIEC’s important rolein the society. At the same time, it represents achallenge as we question the value of our existence
and invite society’s evaluation. We are steadily
constructing the basis of the next-generation
information industry while remaining firmly rooted in
the depth of knowledge that only a university canprovide. We will also contribute to society by training
international researchers and highly skilled engineers.
I look forward to your continuing support andencouragement as we at RIEC forge ahead towardachieving our goals, united in our renewed
commitment and enthusiasm.

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Chronology

1. Birth
Telecommunications research at Tohoku University began in 1919 with the establishment of the Department ofElectrical Engineering in the university's School of Engineering. In that era, work was centered on strong-current
electrical engineering, but upon the establishment of this department attention turned to weak-current electricalengineering.
In 1924, the Saito Foundation granted what in those days was a huge sum to fund research by three professors,
Hidetsugu Yagi, Heiichi Nukiyama, and Shigetaro Chiba, into communication methods using electricity. As a result,telecommunications related research was conducted systematically for the first time in Japan. The department was
subsequently strengthened by the addition of a succession of gifted young researchers such as Yasushi Watanabe,
Masatoshi Matsudaira, Kinjiro Okabe, Shintaro Uda, Kenzo Nagai, and Katsuichiro Kobayashi. The fruits of theirresearch were considerable, as reflected by the publication of numerous papers in journals both in Japan andoverseas that attracted widespread attention.
Along with subsequent advances in telecommunications technologies and the spread of communications equipment,
the importance of telecommunications related research became increasingly recognized, fueling a groundswell of
opinion in favor of setting up a research establishment to undertake telecommunications research at the Tohoku
Imperial University. The university's statutes were revised and an affiliated telecommunications research institute wasestablished. Professor Heiichi Nukiyama was appointed as the first head of the new institute, and he had a full-time
staff comprising three assistant professors, six assistants, and one secretary.
Given its intended evolution into an entity independent of the Department of Electrical Engineering, this research
institute was designed to function in parallel with the School of Engineering, but shared premises with the Department
of Electrical Engineering, and its research facilities were conventional. It maintained an arm's length relationship with
the Department of Electrical Engineering and the number of people who functioned effectively as regular staff was farlarger than the number of regular staff prescribed by its statutes. This strengthened both the organization and thecontent of its research, enabling it to produce noteworthy results.

2. Cradle and growth
In response to society’s need for telecommunications engineers, the Department of Electrical Communication wasestablished within the School of Engineering in 1941. As part of a three-entity cooperative structure that included theDepartment of Electrical Engineering and the Department of Electrical Communication, the Research Institute ofElectrical Communication (RIEC) achieved considerable success in a diverse range of research projects and produceda large number of skilled personnel through its research and education activities. In this way, it steadily built up a
tradition of combined operations.
As a result of a statutory change, in 1944, RIEC, hitherto a telecommunications research institute affiliated with
Tohoku University, was given the status of an integral research institute. It had an independent research institutestructure comprising five divisions staffed by full-time professors, but firmly retained a system of close links with the
Department of Electrical Engineering and with communications engineering.
During the difficult circumstances of the postwar period, work continued in the research facilities, which had narrowly
escaped wartime destruction. As a result of the promulgation of the National School Establishment Act in 1949,
Tohoku University was re-established with the status of a national university, and RIEC became one of its integral
research institutes.
Owing to the subsequent rapid progress made in the field of electronics, there were successive increases in thenumber of research divisions with the addition of one in 1954 and 1957, four in 1961, three in 1962 and 1963, and one
in each of 1965, 1969, and 1976. This saw RIEC develop into a major research institute with 20 research divisions and2

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some 100 teaching staff.
The year 1956 saw the completion of the institute's first independent building (currently part of the Institute ofMultidisciplinary Research for Advanced Materials) on the Katahira Campus, formerly in the Sakurakoji district of
Sendai. The end of March 1963 saw the completion of a new building (currently S Block No. 1 Building) that was
double the size of its predecessor on the Katahira Campus formerly in the Minami Rokken-cho district, marking the
beginning of a move from the Sakurakoji district to the Minami Rokken-cho district. When the School of Engineeringtransferred to Aobayama in 1966, the former Department of Electronic Engineering building (currently N Block, No. 1
Building) became an RIEC building, as did the building (currently No. 2 Building) of the Training School of Engineering
Teachers upon its closure in 1969. This completed the transfer of all the divisions.
The Laboratory for Microelectronics (operating for a limited period until March 1994) was established in 1984, andthe Super Clean Room block was completed in 1986. The Laboratory for Electronic Intelligent Systems wasestablished in April 1994 as an advanced version of the Laboratory for Microelectronics.
In 1958 the electricity related departments of the School of Engineering, with which RIEC was closely associated,were supplemented by the addition of the Department of Electronic Engineering. Subsequent milestones included theestablishment of the Research Center for Applied Information Science in 1972 and increases in the number of
information engineering majors in the Graduate School of Engineering in 1973 and in the information engineering
departments in the School of Engineering in 1984. With this as a basis, the Graduate School of Information Sciences
was newly established in 1993.
With greater emphasis being placed on graduate schools, in 1994 the electrical, communication science, andelectronic engineering majors in the Graduate School of Engineering became electrical and communicationengineering and electronic engineering majors. With greater emphasis being placed on graduate schools, in 1994 thecourses in electrical, communication science, and electronic engineering in the Graduate School of Engineering were
replaced with courses in electrical and communication engineering and electronic engineering. A total of nine courses
were instituted, including full-time courses. In addition, four electricity related departments and the Department ofApplied Physics were amalgamated in 2007 to form the Department of Information and Intelligent Systems. In addition,2008 saw the establishment of Japan's first Department of Biomedical Engineering, with the aim of fusing medicine
and engineering with active input from the electrical field.

3. Development: From national collaborative research institute to joint usage/research centerIn 1995 RIEC celebrated the 60th anniversary of its establishment. To mark the occasion it sought to meet the needsof the impending advanced information society by reorganizing itself as a national collaborative research institute. In
June 1994, approval was given for RIEC to become a national collaborative research institute engaging in boththeoretical and applied research relating to high-density and advanced information communications, whereupon it
reorganized into three broad research divisions: Brain Computing, Materials Science and Devices, and Coherent Wave
Engineering. In addition, to replace the Laboratory for Microelectronics, which had reached its specified duration, theLaboratory for Electronic Intelligent Systems was established across the three divisions.
The backdrop to this was the IT revolution, characterized by rapid progress in information and communication
technologies, which made the information society a reality. To ensure that RIEC played a leading role in theinformation society, in 2001 its philosophy, objectives, and goals were reformulated.
RIEC has defined its philosophy as follows: "Close and smooth communication between people is fundamental tomaintaining and developing a flourishing and humane society. We will contribute to the well-being not only of Japan but
also of human society as a whole through the rapid development of science and technology related to communication."
In addition, RIEC pledged that, based on the results of research conducted hitherto in relation to high-density andadvanced information communications, it would play a pivotal role in undertaking comprehensive research into the3

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theory and application of science and technology that will provide communication approaches that benefit humankind.
Also, in April 2002, RIEC established the Research Center for 21st Century Information Technology in compliancewith a ministerial ordinance. Straddling the three research divisions, the center's aim is to address, throughcollaborations between industry and academia, the changes that occur in the fabric of society, leading to the creationof new information and communication industries.
In 2009, major changes were made to the organization of university research institutes and centers; the national
collaborative research institutes were abolished, and joint usage/research centers were established. A council for joint
usage/research centers was set up in April 2010. These centers involve not only the joint use of facilities but also the
conduct of joint research; something that is strongly desired by the research community.
At the time of the change to a collaborative research institute in 1994, RIEC's intention was to operate with its
orientation towards joint research, gathering research scientists together from a broad range of backgrounds bothwithin Japan and overseas, and pursuing joint research projects. In this regard, RIEC anticipated the main goal ofthese new centers. In recognition of its achievements, RIEC has been accredited as a joint usage/research center.

4. Leap forward: As a world center of excellence
To realize RIEC's philosophy and goals in the coming era of next-generation global, ubiquitous information
communication, an appropriate research system has been put in place. In fiscal 2004 a reorganization was undertakenthat considered the research time scale, in addition to the research fields themselves. Research was divided broadly
into short-, medium-, and long-term research, and we introduced flexibility to enable the organization to be changed
fluidly according to the progress of the research. A major role in short-term research is played by the Research Centerfor 21st Century Information Technology, which facilitates the practical application of the excellent research results
achieved by RIEC within approximately five years through collaboration between industry and academia. We have also
set up a Laboratory for Nanoelectronics and Spintronics to engage in research over medium-term spans ofapproximately 10 years. It undertakes comprehensive and intensive research into material and device technologies
based on nanotechnology. We have also established the Laboratory for Brainware Systems, whose aim is to build
intelligent integrated systems that break down the barriers of present-day information technologies, conducting
fundamental research with a view to practical applications. To promote research at the Laboratory for Nanoelectronics
and Spintronics, in March 2004 we completed the Nanoelectronics and Spintronics integrated research block, which isequipped with the latest technology.
Long-term research has been reorganized into four major research divisions. The Materials Science and Devices
Division and the Coherent Wave Engineering Division, which developed scientific techniques for transmitting large
volumes of information accurately at high speed, are both in fields in which RIEC has traditionally been strong. These
units have been reorganized into the Information Devices Division and the Broadband Engineering Division,respectively. Moreover, to build an advanced information society in which humankind and the environment are inharmony, we have established the Human Information Systems Division, which aims to elucidate the ways in whichhuman beings process information, and the Systems and Software Division, whose goal is to develop software andsystems to advance and enhance the information and communication systems that underpin the information society.
RIEC has structures for close cooperation in the spheres of research and education with the School of Engineering(Electrical and Communication Engineering, Electronic Engineering), the Graduate School of Information Sciences,and the Graduate School of Biomedical Engineering. At the same time it welcomes researchers from within Japan andfrom all over the world, and as a world center of excellence its duty is to engage vigorously in research activities in awide range of fields related to telecommunications. Building on the proud record of achievement of our distinguishedpredecessors and colleagues, we are entering a new era in which we hope to make further leaps forward amid therapid development of information and communication technologies and the rising tide of globalization.

4

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Organization
1.Organization Chart
Information Devices Division
Director

Advisory
Council
DeputyDirector

Broadband Engineering Division

Research
Divisions
Human Information Systems Division
FacultyCouncil
Systems & Software Division
Sponsored Division
Laboratory for Nanoelectronics and Spintronics
Research
Facilities

Laboratory for Brainware Systems
Research Center for 21st Century
Information Technology
Management Office for Safety and HealthCommon Research Facilities

Flexible Information System Research Center
Fundamental Technology Center

Administration Office5

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Nano‑Photoelectronics
Quantum‑Optical Information Technology
Solid State Electronics
Dielectric Nano‑Devices
Materials Functionality Design
Magnetic Devices(Visitor Section)
Ultrahigh‑Speed Optical Communication
Applied Quantum Optics
Advanced Wireless Information Technology
Information Storage Systems
Ultra‑Broadband Signal Processing
Basic Technology for Broadband Communication(Visitor Section)
Electromagnetic Bioinformation Engineering
Advanced Acoustic Information Systems
Visual Cognition and Systems
Interdisciplinary Field for Informatics
Ubiquitous Communications System
Multimodal Computing (Visitor Section)
Software Construction
Computing Information Theory
Communication Network
Information Contents
Information Social Structure(Visitor Section)
Environmental‑Adaptive Information and Communication Engineering
Atomically Controlled Processing
Semiconductor Spintronics
Nano‑Molecular Devices
Nano‑Spin Memory
Real‑World ComputingIntelligent Nano‑Integration System
Microarchitecture
New Paradigm VLSI System
Project Planning Division
Technology Development Division:
Mobile Wireless Technology Group
Storage Technology GroupIntelligence Archive Group(Visitor Section)

Machine Shop Division
Evaluation Division
Process Division
Software Technology Division
General Affairs Section
Cooperative Research Section
Library Section
Accounting Section
Purchasing Section

6

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2.Staff(2010.7.1)

Classification

Laboratory for Laboratory for
Nanoelectronics Brainware
and Spintronics Systems

Division

Professors
Associate Professors
Assistant Professors
Research Fellows
Technical Officials
Administrative Officials
Total

20
13
19
13

3
5
3
2

ResearchCenter for21st Century
Information
Technology

3
1
5
2

Fundamental
Technology
CenterAdministration
Office
Total

1
1

16
65

13

11

2

16

2
14
16

27
20
27
17
18
14
123

3.Land and Buildings
Site:
Total building area:
Total floor area:
Name of Buildings
Building No.1

Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan
12,913m2
28,776m2
Structure
Reinforced Concrete, 4 floors

Building No.2
Reinforced Concrete, 4 floors
Laboratory for Nanoelectronics and Spintronics Steel-frame, 5 floors
Reinforced Concrete, 1 floor
Laboratory for
Brainware Systems
Reinforced Concrete(partly steel-frame), 2 floors
Steel-frame 1 floor
Light-weight steel-frame, 2 floors
Research Center for 21st Century Reinforced Concrete, 3 floors
Information Technology
Steel-frame 1 floor
Evaluation and Analysis Center Reinforced Concrete, 2 floors
Helium Sub-Center
Reinforced Concrete(partly light-weight steel-frame),1 floor
Machine Shop
Reinforced Concrete(partly light-weight steel-frame),1 floor
OthersTotal(2010.7.1)

Year of Completion Floor Area
Building-S:1962,1963
7,772m2
Building-N:1959,1960
1962,1963
7,085m2
2004
7,375m2
1967,1968,1972
525m2
1986
1,553m2
1996
598m2
1999
147m2
1930
1,343m2
2002
435m2
1981
790m2
1972
166m2
1965,1966,1978
479m2
508m2
28,776m2

4.BudgetFinancial Year

2005
2006
2007
2008
2009

(Unit:1,000Yen)

Personnel
Expenditure

Supplies
Expenditure984,113
971,482
970,961
879,481
1,026,511

1,050,647
927,090813,724
953,000
1,562,318

Research Grant
Partnership Between
Ministry of Education,
Universities and Industry
Science and Culture
554,680
1,303,028
599,040
937,441
700,615
888,833
694,883
1,069,832
605,100
798,053

7

Total

3,892,468
3,435,053
3,374,133
3,597,196
3,991,982

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Nation-wide Cooperative Research Projects

The Institute has a long history of fundamental contributions in many fields of engineering and science that include
the fields of semiconductor materials and devices, magnetic recording, optical communication, electromagnetic
technology, applications of ultrasonics, acoustic communication, non-linear physics and engineering, and computer
software. On the basis of this rich historical background the Institute was designated as National Center for
Cooperative Research in 1994. Accompanying Tohoku University’s transformation to “ a national university juridical
entity” in April, 2004, this institution plays a leading role on the world stage, as its researchers, both domestic andforeign, continue the task of “investigating the theory and application of universal science and technology to realize
communication, to the enrichment of humanity.”
In such background, the Institute organizes Nation-wide Cooperative Research Projects by coordinating its activities
with research workers. The main themes for Cooperative Research are selected annually by the Committee for
Cooperative Research. Then invitations for project proposals and participation are extended to university faculties andgovernment laboratories as well as industrial research groups. Each project approved by the Faculty Council of theInstitute is carried 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 Judging Committee that includes members from the 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.

Director

Advisory
Council

Outline of the Operation Policy

Cooperative Projects
Study Committee

Type AAct as a planning center for all
operations in cooperative projects
research

Cooperative Projects
Selection Committee
Cooperative Projects
Steering Committee

8Type B
Rating of applications
Adoption decision

Type S
Budget allocation
Daily routine business2010‐2011(e)01〜10p̲欧文 平成 22/09/22 16:21 ページ 9

Research Fields
The Research Institute of Electrical Communication (RIEC) maintains a close cooperative relationship with the Graduate
Schools of Engineering, Information Sciences and Biomedical Engineering in its research and educational activities, especiallywith the Departments of Electrical and Communication Engineering, Electronics, Computer and Mathematical Science, System
Information Science and Applied Information Sciences. This cooperation enriches the research activities of RIEC as a“National Center for Cooperative Research.” The research fields of four divisions are:(1)Information Devices Division:Advanced Nano-Information Devices Utilizing Physical Phenomena(2)Broadband Engineering Division:Next Generation Systems for Ultra-Broadband Communication(3)Human Information Systems Division:Creation of Information Systems Harmonizing People and Environments(4)Systems & Software Division:Advanced System and Software for Information Society

Information Devices Division

Broadband Engineering Division

Materials Science and Device Science

Information Technology
・ Advanced Wireless Information Technology
・ Technology Development Division Mobile Wireless Technology Group・ Ultrasonic Micro‑Spectroscopy *・ Solid State Electronics
・ Dielectric Nano‑Devices
・ Materials Functionality Design
・ Atomically Controlled Processing
・ Physical Fluctuomatics *・ Intelligent Integrated Systems *・ Advanced Management of Integrated System Technology *・ Solid State Electronics *・ Physical Acoustics *Ultrahigh‑Frequency Engineering
・ Ultra‑Broadband Signal Processing
・ Communication Engineering *Optical Communication／Applied Quantum Electronics
Electonic and Optical Quantum Science・ Ultrahigh‑Speed Optical Communication
・ Applied Quantum Optics
・ Optical Physics Engineering *・ Neural Electronic Engineering *・ Information Measurement and processing *・ Nano‑Photoelectronics
・ Quantum‑Optical Information Technology
・ Image Science and Information Display *・ Biomodeling *Information Recording ／ Material Science・ Semiconductor Spintronics
・ Information Storage Systems
・ Technology Development Division Storage Technology Group・ Nano‑Spin Memory
・ Microelectronics *・ Electronic Physics Engineering *・ Algorithm Theory *・ Nanoscale Magnetism and devices *・ Medical Nanosystem Engineering *・ Spin Electronics *・ Magnetic Materials *・ Nano Intelligent System *Plasma Science・ Electromagnetic Theory *・ Magneto‑Plasma‑Dynamic Engineering *Visitor Section

Visitor Section

・ Magnetic Devices

・ Basic Technology for Broadband Communication

9

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Human Information Systems Division

Systems & Software Division

Bioinformation

Computer Science・ Electromagnetic Bioinformation Engineering・ Electromagnetic Theory *・ Applied Power Systems Engineering *・ Software Construction
・ Computing Information Theory
・ Foundations of Software Science *・ Intelligent Systems Science *・ Information Security *・ Image Information Communications *Human Information Processing
・ Advanced Acoustic Information Systems
・ Visial Cognition and Systems
・ Intelligent Communication Network *・ Electronic Control Systems *・ Advanced Information Technology *・ Electronic Control Engineering *Internet Communication
・ Communication Network
・ Information Contents
・ Information Network System *・ Information Technology *・ Electric Energy System Engineering *・ Applied Intelligence Software *Communication Environment
・ Ubiqutous Communication Systems
・ Electromagnetic Wave Engineering *・ Firmware Science *Bioelectronics
・ Nano‑Molecular Divices
・ Interdisciplinary field for Informatics
・ Basic Plasma Engineering *・ Biomedical Electronics *・ Nano‑Biomedical Engineering *・ Systems Bioinformatics *VLSI System
・ Intelligent Nano‑Integration System
・ New Paradigm VLSI System
・ Microarchitecture
・ Intelligent Electronic Circuits *・ Power Electronics *・ Computer Structures *Real World Computing
・ Real‑World Computing
・ Control Systems Engineering *・ Bio‑electromagnetics *Visitor Section

Visitor Section

・ Information Social Structure

・ Multimodal Computing

10*Laboratories in Graduate Schools

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Materials Functionality
DesignNano‑Photoelectronics

Information
Devices Division

Quantum‑Optical
Information Technology

Dielectric
Solid State Electronics

Nano‑Devices

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Nano-Photoelectronics
Staff:
Yoichi UEHARA, Professor
Satoshi KATANO, Assistant Professor
S. KATANO

Y. UEHARA

Research activities:
Our main interest lies in the studies of physical and chemical
phenomena that take place in nanometer-scale regions as well as theapplications of such phenomena in photo-electronic devices. We
investigate materials properties of nano-structures through their opticalresponse to local excitations that is generated by electrons from the tipof a scanning tunneling microscope (STM). The physical systems understudy include adsorbed atoms and molecules on solid surfaces, metaland semiconductor nano-structures, and superconductive nanostructures.
We are also interested in developing novel probing methods for nanoscience. We are developing a STM light emission spectroscopy systemthat is capable of measuring the optical properties of nanometer scale
objects with pico-second time resolution.

Research topics:
1. Identification of individual surface adsorbates
2. Single molecule optical spectroscopy
3. STM light emission spectroscopy of normal and super conductive
nano-structures
4. Light enhancement effect in nano-scale regions
5. Creation of novel nano-structures by STM

12Integrated Surface Analysis Systemwith Low‑temperature STM

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Quantum-Optical Information Technology
Staff:
Keiichi EDAMATSU, Professor
Yasuyoshi MITSUMORI, Assistant Professor
Takeshi KUTSUWA, Research Fellow

Hideo KOSAKA, Associate Professor
Ryosuke SHIMIZU, Research Fellow
So-Young BAEK, Research Fellow
R. SHIMIZU T. KUTSUWA H. KOSAKA K. EDAMATSU Y. MITSUMORI

Research activities:
Current information and communication technology utilizes
macroscopic and classical physical quantities, such as voltage or
frequency of electric fields. The classical technology will reach the limitof information density and speed in the near future. The quantummechanical counterpart, “quantum information processing andcommunication technology”, in which information is carried by
microscopic and quantum-mechanical quantities, is expected toovercome the difficulty. Our goal is to develop the quantum information
devices utilizing quantum interaction between electrons and photons insemiconductor nanostructures, to obtain further understanding of their
physics, and to apply them to practical quantum information
technologies.

Fig. 1 Single‑photon‑level optical nonlinearity in
optical fibers and waveguides.

Quantum-Optical Information Technology(Prof. EDAMATSU)
Development of fundamental devices of quantum info-communication
technology (QICT) utilizing photons, novel materials and semiconductor
nanostructures.

Research topics:
1. Novel techniques for the generation and detection of photon
entanglement.
2. QICT devices using optical fibers and waveguides.
3. QICT using semiconductor quantum dots and nanostructures.

Quantum Solid State Physics (Assoc. Prof. KOSAKA)
Development of quantum interfaces essential for QICT based onparticle-wave duality of a quantum through the deep understanding ofinteraction between electrons and photons.

Research topics:
4. Quantum media conversion between a photon and an electron spin
and its entanglement-based application.
5. Exploration of dynamic spin quantum correlation between photons
and electrons and its QICT application.
6. Development of quantum repeaters with an electron spin and nuclear
spins in quantum dots and diamonds.

13

Fig. 2 Quantum media conversion from photon
polarization to an electron spin.

S.‑Y. BAEK2010‐2011(e)11〜16P̲欧文 平成 22/09/22 16:22 ページ 14

Solid State Electronics
Staff:
Maki SUEMITSU, Professor
Hirokazu FUKIDOME, Assistant Professor
Yasutake TOYOSHIMA, Visiting Professor
Jun TAKEDA, Visiting Professor
Sergey FILIMONOV, Visiting Associate Professor

Y. TOYOSHIMA

J. TAKEDA
M. SUEMITSU

H. FUKIDOME
S. FILIMONOV

Research activities:
To realize the ubiquitous (or ambient intelligence) society, inwhich sensors and their networks are embedded in ourambience to support our daily life through a prompt warning ofvarious environmental crises, a marriage between non-Si
technologies suitable for environmental sensing and the Si
technology suitable for signal processings is indispensable. To
this goal, we investigate formation of ultrathin silicon-carbide(SiC) films on Si substrates, hoping to use them as a common
interface between the two technologies. SiC is a group-IV
compound that contains a pair of elements representative ofboth electronics (Si) and biology & nanoelectronics (ex.
graphene) (C). It also bridges the gap between Si and other IIVI or III-V compounds. It is a widegap semiconductor thatenables high-temperature operations. High enough strengthand hardness of SiC make this material suitable for use in
MEMS structures. We are developing gas-sensors, graphenebased ultrahigh-speed devices, LEDs, biosensors, MEMS
structures, non-volatile memories, and photovoltaic cells basedon the SiC/Si structures. What lies behind these applications is
our original technology of SiC gas-source molecular-beam
epitaxy (MBE) using organo-silane, which enables a highquality, low-temperature SiC epitaxy on Si substrates.
Our research covers the surface chemistry of Si-related
surfaces, targeted to the control of nanostructure formation on
Si and SiC surfaces. Fabrication of non-equilibrium Si
structures such as amorphous-, microcrystalline-, and poly-Si
thin films is also within our interests, and is being intensively
investigated using atmospheric-pressure plasma-enhanced
chemical vapor deposition (AP-PECVD).

SiC expands the conventional Si technology

Graphene: A two‑dimensional network of carbon atoms.

Research topics:
1. Surface chemistry during oxidation and film-deposition of Sirelated surfaces and development of nanofabrication
processes
2. Formation of SiC films on Si substrate and their applications
to ubiquitous devices
3. Formation of graphene-on-Si structure and development of
ultrahigh speed devices
4. Fabrication of Si-and C-related non-equilibrium structuresusing AP-PECVD and their applications to electronic
devices.

14

A UHV‑compatible process/analyses systemand the atomic image of a Si surface (inset).

2010‐2011(e)11〜16P̲欧文 平成 22/09/22 16:22 ページ 15

Dielectric Nano-Devices
Staff:
Yasuo CHO, Professor
Yoshiomi HIRANAGA, Assistant Professor
Kohei YAMASUE, Assistant Professor
Yasuo WAGATSUMA, Technical Official
Noriaki OKAZAKI, Research Fellow

Y. WAGATSUMA
N. OKAZAKI
K. YAMASUE
Y. CHO Y. HIRANAGA

Research activities:
Our main area of interest is evaluation and development of dielectricmaterials, including ferroelectric and piezoelectric materials and theirapplication to communication devices and ferroelectric data storage
systems.
Our measure contributions to advancement in these fields are theinvention and the development of "Scanning Nonlinear Dielectric
Microscope" (SNDM) which is the first successful purely electricalmethod for observing the ferroelectric polarization distribution without
the influence of the shielding effect by free charges and it has alreadybeen 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. Our recent
research achieved to fabricate an ultra-small domain inversion dot,
which has the diameter of 3 nm in case of single dot fabrication, andachieved the recording density of 4 Tbit/inch 2 in actual information
storage, requiring an abundance of bits to be packed together.(Fig.3)
Moreover, we have started to make a measurement and anevaluation of flash-memory device and dopant profile in semiconductor
devices using SNDM. Because SNDM can detect very small
capacitance variation, it can be a very powerful evaluation tool forvarious materials. Now SNDM evolves into a new evaluation techniquefor insulator material and semiconductor materials besides ferroelectricmaterials.

Fig1:Commercially available scanning
nonlinear dielectric microscope.

Fig2:S(111) 7X7 atomic structure taken by SNDM.
(a)Topography (b) Electric dipole‑moment.

Research topics:
1. Development of scanning nonlinear dielectric microscope (SNDM)
with super high (atomic-scale) resolution.
2. Ultra-high density ferroelectric recording system using SNDM.
3. Development of ferroelectric functional devices for electricalcommunications using nano-domain engineering based on SNDM.
4. Evaluation of ferroelectric material and piezoelectric material using
SNDM.
5. Evaluation of flash-memory device and dopant profile insemiconductor devices using SNDM.

15

Fig3:Example of a ferroelectric actual information
storage (4 Tbit/inch2).

2010‐2011(e)11〜16P̲欧文 平成 22/09/22 16:22 ページ 16

Materials Functionality Design
Staff:
Masafumi SHIRAI, Professor
Yoshio MIURA, Assistant Professor
Kazutaka ABE, Assistant Professor
K. ABE

M. SHIRAI

Y. MIURA

Research activities:
Various kinds of materials, such as semiconductors, dielectrics, andmagnets, are utilized for processing, communication, and storage of
massive data in the modern information-oriented society. Our research
objectives are as follows: (1) theoretical analyses of quantum
phenomena which appear in materials and nanostructures for advanced
information devices, (2) computational design of materials andnanostructures which possess new functionalities for improvement ofdevice performance, and (3) development of epoch-making materials
and functionality design procedures on the basis of large-scalecomputational simulation techniques.
Our research interest is focused on “spintronics”, an interdisciplinary
research field emerging from materials science, physics, electronics,
and magnetics, where both charge and spin degrees of freedom are
exploited to realize new kinds of advanced information devices. The
main research topics are computational design of new spin-related
functionalities exhibited in the highly spin-polarized materials anddevice-structures utilized the materials. We undertake pioneeringcomputational schemes for design of new functional materials and/or
devices.

Research topics:
1.Computational design of new spintronics materials from first-principles
2. Computational analysis of transport properties in spintronics devices
3. Computational simulation of nanostructure-growth process on surface
4. Development of new computational scheme for material/device
design16(a) Density of states (DOS) and (b) total energy as afunction of tetragonal distortion calculated forferromagnetic shape‑memory alloys Ni2Mn1+xSn1‑x (x =0, 0.25, 0.5).
A peak structure in the DOS shifts toward the Fermi
level with increasing the Mn composition, and finallya tetragonal structure becomes stable for x = 0.5.
[modified from FIG. 3 in Phys. Rev. Lett. 104,
176401 (2010).]

2010‐2011(e)17〜24P̲欧文 平成 22/09/22 16:24 ページ 17

Ultrahigh‑Speed
Optical Communication

Broadband
Engineering Division
Applied Quantum
OpticsWireless Info Tech17

2010‐2011(e)17〜24P̲欧文 平成 22/09/22 16:24 ページ 18

Information Storage
Systems

Ultra‑Broadband Signal
Processing

Basic Technology for
Broadband Communication(Visitor Section)18

2010‐2011(e)17〜24P̲欧文 平成 22/09/22 16:24 ページ 19

Ultrahigh-Speed Optical Communication
Staff:
Masataka NAKAZAWA, Professor
Toshihiko HIROOKA, Associate Professor
Masato YOSHIDA, Assistant Professor
Keisuke KASAI, Research Fellow

T. HIROOKA M. NAKAZAWA M. YOSHIDA K. KASAI

Research activities:
With the vast growth of traffic on the Internet from simple text data to high quality
voice, image, and real-time video content, it has become increasingly important torealize an ultrafast, high-capacity network to support the daily needs of modern
communications. Ultrahigh-speed optical communication is the key technology forbuilding such an interconnected world. This laboratory aims to realize a global
ultrahigh-speed optical network by engaging in research on ultrashort pulse
generation and transmission. Our research areas include optical solitons, high-speed
mode-locked lasers, optical signal processing, and the development of fibers withnew functions.

Optical Transmission (Prof. Masataka NAKAZAWA)
Ultrahigh-speed optical transmission is the driving force behind attempts to realize
advanced high-speed networks that support ultrahigh-precision image transmission
or ultra-realistic communication. At the same time, there is a strong need to realize
spectrally efficient optical transmission to expand the transmission capacity for agiven optical bandwidth. With a view to achieving an ultrahigh bit rate exceeding 1
Tbit/s/channel, we are actively engaged in realizing ultrafast optical time divisionmultiplexed (OTDM) transmission using ultrashort pulse lasers. To expand thespectral density, we are working intensively on ultra-multi-level coherent QAM
transmission technology in which the spectral efficiency is greatly improved byencoding the information in both the amplitude and phase of an optical beam. In
addition, we are developing a new frequency standard by stabilizing a mode-locked
laser so that it has a highly controlled longitudinal mode separation. This technique isalso applicable to the microwave-photonics area. Another important aspect of ourresearch relates to the development of photonic crystal fibers. These special fibers
have many air holes in the fiber cross-section, and they have potential applications in
new optical communication systems operating in the currently unused 500-1000 nm
band.

Experiment on ultrahigh‑speed optical transmission

Research topics:
1. Terabit/s OTDM transmission using a femtosecond pulse train
2. Ultra-multi-level coherent optical transmission toward the Shannon limit
3. Ultrashort mode-locked lasers and their application to frequency standards andmicrowave-photonics
4. Photonic crystal fibers and optical fibers with new functionality

Optical Signal Processing (Assoc. Prof. Toshihiko HIROOKA)
We are engaged in the development of ultrahigh-speed optical signal processing
technologies that will support next-generation high-capacity optical networks. In
particular, by taking advantage of ultrafast optical properties, we are actively working
on all-optical technologies using nonlinear optical effects, where optical signals areprocessed without the need to convert them into the electrical domain. Specifically,
we are developing femtosecond pulse compression, pulse shaping, opticaldemultiplexing, and distortion elimination techniques, which are indispensable forrealizing ultrahigh-speed OTDM transmission exceeding terabit/s.

Research topics:
5. Distortion elimination technique using time-domain optical Fourier transformation
6. All-optical signal processing using nonlinear optical effects and their application toultrahigh-speed OTDM transmission

19

Photonic crystal fiber(Upper photo:cleaved end face of a PCF, lower
photo:enlarged cross section)

2010‐2011(e)17〜24P̲欧文 平成 22/09/22 16:24 ページ 20

Applied Quantum Optics
Staff:
Hiroshi YASAKA, Professor
Jun-ichi SHIKATA, Associate Professor
J. SHIKATA

H. YASAKA

Research activities:
We are investigating novel, highly functional semiconductor photonic
devices, which is indispensable to realize new generation information
communication networks. We are also investigating novel, compact andwidely tunable coherent light sources based on lasers and nonlinearoptical phenomena. Furthermore, our research interests cover ultrafast
photonic devices, opto-electronic semiconductor devices and theirapplications to optical computing and signal processing areas.

Optical Fiber

Semiconductor
Photonic Functional Device

Control Photonic Device

Highly Functional Photonics (Prof. Hiroshi YASAKA)
We have been studying highly functional semiconductor photonic
devices and semiconductor photonic integrated circuits based on
semiconductor lasers and semiconductor optical modulators to create
novel semiconductor photonic devices, which can control intensity,
phase, frequency and polarization of optical signal freely.

Experimental setup for high‑speed operation offunctional semiconductor photonic devices byexternal optical signal injection.

Research topics:
1. Highly functional semiconductor photonic devices
2. New function semiconductor photonic integration circuits

Broadband Photonics (Assoc. Prof. Jun-ichi SHIKATA)
We have been studying ultra-broadband coherent terahertz (THz)wave radiation to explore novel science and technology fields, the bandof which extends from ultra-violet to far-infrared region. Widely tunable,
spatially and temporally coherent THz wave is generated for the firsttime, by using optical parametric effects. THz-frequency coherent antiStokes Raman (THz-CARS) microscope has been successfully applied
for sensitive detection of THz resonances in biomolecules. Novel THz
biosensors have been developed by using local-field enhancement via
surface plasmon resonance, and successfully applied to near-field THz
imaging with sub-wavelength resolution.

Research topics:
3. Ultra Broadband, coherent tunable light sources using nonlinear
optics
4. Terahertz biophotonics

20

Terahertz CARS microscope and its imaging of
periodically poled lithium niobate.

2010‐2011(e)17〜24P̲欧文 平成 22/09/22 16:24 ページ 21

Advanced Wireless Information Technology
Staff:Noriharu SUEMATSU, Professor
Suguru KAMEDA, Assistant Professor
Shoichi TANIFUJI, Research Fellow
S. TANIFUJI N. SUEMATSU S. KAMEDA

Research activities:
Since interchange of people and exchanges of information have been

Satellite
Network
High-Speed Optical Network

world wide, next generation wireless network for ubiquitousness andbroadband is one of the most important technology. Especially, a signal

Internet
Cellular and MBWA
Base Station

Terrestrial
Digital TV

processing circuit, device and packaging technologies and the
MobileConference

modulation/demodulation and network technologies are the two wheels

Home
Gatewayof realizing next generation wireless network.
For realizing the next generation wireless network, we are actively
engaged in work on following technology for broadband, low-power
consumption and small-size terminals; (1) RF power amplifier,synthesizer and mixer devices for millimeter wave and GHz-band

Home
Network
ASV (advance safety vehicle) with DWS

Fig.1 Evolutional network for ubiquitousness andbroadband

wireless modems, (2) Ultra small antennas for mobile terminals.
Moreover, digital assisted RF technology using digital signal processing
has been investigated.

Radio wave
(UHF/microwave/
mm-wave)

CMOS RF-IC䋬mm-wave
RF-IC mm-wave CMOS-IC

We are also interested in developing following wireless networks;
HPA(1) next-generation mobile broadband wireless access (MBWA),Tx Mixer
FilterFilterTx/Rx
SwitchPLLand (3) ultra-broadband wireless personal area network (WPAN).
Currently, we are concentrating on the coherent work toward the nextgeneration "Dependable Wireless System" which is multi-band andmulti-mode mobile terminal.

Research topics:
1. Mobile broadband wireless access network
2. Broadband wireless on-chip transceivers
3. Digitally assisted RF analog circuits
4. Millimeter-wave/submillimeter-wave IC's
5. Digital RF circuits
6. Heterogeneous mobile network
7. Digital signal processing for broadband wireless communication
8. Dependable wireless system

21

ControlsignalFilterte
Rx Mixer

Digitally Assisted RF
Digital RF Signal Processing

ADC

Encoder

Channel measurement
and estimation

Synthesizer

LNA
FilterModulator

Channel selector

Voltage controlled
oscillator (VCO)

Antenna(2) dependable broadband wireless local area network (WLAN),

Tx Signal(Digital)

DAC

Frequency
domainequalizer

Demodulator

DecoderRx Signal (FDE)(Digital)

Heterogeneous/
Channel Estimation
Signal Processing

Fig.2 One-chip modem LSI for Broadband wirelesscommunication

2010‐2011(e)17〜24P̲欧文 平成 22/09/22 16:24 ページ 22

Information Storage Systems
Staff:
Hiroaki MURAOKA, Professor
Simon J. GREAVES, Associate Professor
Kenji MIURA, Assistant Professor
K. MIURA

H. MURAOKA

S. J. GREAVES

Research activities:
Our main interest lies in high-density information storage technology.
The core technology is magnetic recording with fast data transfer andlarge storage capacity, which is applied for hard disk drives, magnetic
tape storage, and flexible disk drives. Recently, multi-media informationsuch as digital movie and music that requires very large storage
capacity begins to be used in broad applications from consumer
electronics to mobile communication. This trend accelerates the areal
density increase of magnetic recording. Recording theories, devices,and systems based on perpendicular recording are being studied inorder to attain ultra-high density information storage. Our target is the
terabit storage (Over 5 Tbits/inch2 areal density), in which the bit size

Fig 1 Read/write measurement by using a single‑polehead and a perpendicular media.

corresponds to the area of 10 nm by 10 nm.

Information Storage Systems Research Division (Profs MURAOKA, MIURA)
A single-pole head and perpendicular disks are investigated throughread/write experiments, as shown in Fig 1, to improve the recording
performance. For extremely large capacity storage systems, the storage
grid working on a network, as shown in Fig 2, is also explored.

Research topics:
1. High areal density hard disk drives
2. Head/disk devices for high density magnetic storage
3. Digital signal processing for high density storage
4. Network storage for large capacity file server

Recording Theory Computation Research Division (Prof. GREAVES)
A computer simulation utilizing micromagnetics is being carried out toobtain a guideline towards ultra-high density recording.

Research topics:
5. Micromagnetics simulation for high density read/write theory22

Fig 2 A large‑scale storage system withparallel HDD operation.

2010‐2011(e)17〜24P̲欧文 平成 22/09/22 16:24 ページ 23

Ultra-Broadband Signal Processing
Staff:
Taiichi OTSUJI, Professor
Tetsuya SUEMITSU, Associate Professor
Akira SATOU, Assistant Professor
Stephane Albon BOUBANGA TOMBET, Research Fellow
Susumu TAKABAYASHI, Research Fellow

S. A. BOUBANGA TOMBET S. TAKABAYASHI
A. SATOU T. OTSUJI T. SUEMITSU

Research activities:
Terahertz (sub-millimeter) coherent electromagnetic waves are expected to
explore the potential application fields of future information andcommunications technologies. We are developing novel, ultra-broadband
integrated signal-processing devices/systems operating in the millimeter andterahertz frequency regime.

Ultra-Broadband Devices and Systems (Prof. Taiichi OTSUJI)
We are developing novel, integrated electron devices and circuit systems
operating in the millimeter-wave and terahertz regions. One example is thefrequency-tunable plasmon-resonant terahertz emitters, detectors, andmodulators. Another example is unique electromagnetic metamaterial circuit
systems based on optoelectronic dispersion control of low-dimensional
plasmons. We are also pursuing graphene-based new materials to creat new
types of terahertz lasers and ultrafast transistors, breaking through the limit on
conventional transistor/laser operation. By making full use of these worldleading device/circuit technologies, we are exploring future ultra-broadband
wireless communication systems as well as spectroscopic/imaging systems
for safety and security.

Research topics:
1. Plasmon-resonant terahertz emitters/detectors/modulators and their systemapplications
2. Terahertz metamaterial circuit systems based on dispersion control of lowdimensional plasmons
3. Graphene-based terahertz lasers and ultrafast transistors, and their systemapplications

Ultrafast Electron Devices (Assoc. Prof. Tetsuya SUEMITSU)
Transistors are important building blocks for integrated circuits used in a lotof systems for information and communication technologies. Particularly in
optical fiber communication systems and (sub-) millimeter-wave frequency
systems that requires ultimately high-speed operation, the channel materialsof transistors should be chosen to realize high mobility and saturation velocity
for carrier electrons (or holes). In our group, we are focusing on threeimportant material systems for such high-speed devices: the indium gallium
arsenide (InGaAs) material systems for ultimately high-frequency operation
including sub-millimeter-wave regime, the gallium nitride (GaN) material
systems for high-power millimeter-wave applications, and the graphene-basedmaterial systems as a new candidate for high-speed devices. Our activities
include the design, process, and characterization of these devices and theirintegrated circuits.

Research topics:
4. InGaAs- and GaN-based heterostructure field effect transistors (FETs) for
ultimately high frequencies in millimeter- and terahertz-wave regime
5. Graphene-based transistors for high-speed and high-frequency applications

23

Newly‑proposed plasmon‑resonant emitter (PRE)operating in the terahertz range. (Upper: cross‑sectional view and SEM images of the device
fabricated with GaAs‑based heterostructure material
systems, upper middle: FTIR‑measured broadband
emission spectra of single‑chip and multichip PREs inthe self‑oscillation mode, lower middle: fabricatedgraphene‑channel back‑gate FET, lower: measured
drift mobility)2010‐2011(e)17〜24P̲欧文 平成 22/09/22 16:24 ページ 24

Basic Technology for Broadband Communication
Koji MIZUNO, Visiting Professor

Research activities:
Development of measurement methods using the millimeter- and terahertzwave region of the electromagnetic spectrum is the research target of thissection. Since the wavelength of this region is larger than that of the infraredand optical region, scattering by cloud, dust, flame, fabrics, skin, etc. is muchsmaller and since photon energy of this region is much smaller than thermalenergy kTB at the room temperature, non-invasive measurement for objects
is possible. Utilizing these characteristics this region can be applied in theareas such as security system under disaster such as earthquake followed byfire, fire in high-way tunnels, and also applied in security system for detectionof weapons under clothes and in diagnostic of biomaterials including skindisease and agricultural produces. We are developing imaging systems
mainly of passive mode.
We are developing a 77 GHz-band passive imaging system mainly for
airport security check in cooperation with two companies. The flame rate of
2~4 f/s and the space resolution of ~20 mm have been obtained. The methodof marking on visible pictures has been adopted to show positions of
unidentified objects in consideration of privacy.
This laboratory is operated under the support of a project of MEXT (Ministryof Education, Culture, Sports, Science and Technology).

K. MIZUNO

A prototype of 77 GHz PMMW imaging device
was tested in‑site at the Narita International
Airport to demonstrate its usefulness forsecurity applications in the fall of 2009.

Masaaki INUTAKE, Visiting Professor

Research activities:
Our main interest is to develop an air-borne synthetic aperture radar (SAR)
for the civilian applications. The SAR is very useful for all-weather
surveillance and rescue in disastrous fires and smokes. Scientists andengineers from both universities and industries collaborate on this research
project.
Development of a high resolution (10cm), small size and light weight(30kg) SAR at Ku-band has been started in 2009 under the contract ofMinistry of Land, Infrastructure, Transport and Tourism.
Conceptual design of a real-time image-formation SAR system has been
done, as shown in the figure. A waveform synthesizer circuit with capabilityof precisely setting delay time has been developed in 2009.This isprerequisite for a real-time image formation.

24

M. INUTAKE

Collaborators fromother universities2010‐2011(e)25〜31P̲欧文 平成 22/09/22 16:25 ページ 25

Electromagnetic Bioinformation
Engineering

Human Information
Systems Division
Advanced Acoustic
Information Systems

25

2010‐2011(e)25〜31P̲欧文 平成 22/09/22 16:25 ページ 26

Visual Cognition and
Systems

Interdisciplinary Field
for Informatics

Ubiquitous Communications System

26

2010‐2011(e)25〜31P̲欧文 平成 22/09/22 16:25 ページ 27

Electromagnetic Bioinformation Engineering
Staff:
Kazushi ISHIYAMA, Professor
Shuichiro HASHI, Associate Professor
K. ISHIYAMAS. HASHI

Research activities:
For realizing good communication with human body, and for realizing
the properties of the human body as an information system, we have torealize the function of the human body as information in addition tocatch the signals from the human body. Our research division works on
the technology for sensing the information from the human body and forapproaching action to the human body. We are focusing to realize thecommunication technology with human body and to contributeinformation and communication systems and medical-welfare spheres.

Electromagnetic Bioinformation Engineering（Prof. ISHIYAMA）

High frequency carrior‑type thin film
magnetic field sensor

High-frequency carrier-type magnetic field sensor, which is developedin our laboratory, obtains the world-highest field sensitivity in room
temperature under the works for materials, micro-fabrication techniques,controlling the magnetic properties. This sensor is studied for sensing
system for bio-information. As one of the approaching system for human
body, wireless actuators and manipulators are investigated. This
technology is important for a basic study for robots working in thehuman body. A part of this technology is applied for a motion system fora capsule endoscope working in the colon tube.

Research topics:
1. Super high sensitivity magnetic field sensor
2. High-frequency electromagnetic measuring system
3. Micro magnetic actuator
4. New medical equipment using magnetic

A prototype for motion of capsule‑endoscopeElectromagnetic Bioinformation Materials（Assoc. Prof. HASHI）
Stressless and painless acquisition technique for accurately capturing
the motion or the information of a human body is strongly desired in thearea of the medical treatment and/or rehabilitation therapy. In thisresearch division, sensing systems for temperature and for hardness
are studied as no contact sensing systems. In addition, wirelessmagnetic motion capture system is studied for the medical and welfareuse.
Development of functional magnetic materials and its fabrication
process are also studied to progress these magnetic sensing systems.

Research topics:
5. Wireless magnetic sensing system
6. Functional magnetic materials

27

Wireless magnetic motion capture system

2010‐2011(e)25〜31P̲欧文 平成 22/09/22 16:25 ページ 28

Advanced Acoustic Information Systems
Staff:
Yôiti SUZUKI, Professor
Shuichi SAKAMOTO, Assistant Professor
Takuma OKAMOTO, Research Fellow
Maori KOBAYASHI, Research Fellow
Wataru TERAMOTO, Research Fellow

Yukio IWAYA, Associate Professor
Fumitaka SAITO, Technical Official
Daegee KANG Research Fellow
Cui Lie ZHENG, Research Fellow

T. OKAMOTO W. TERAMOTO F. SAITO S. SAKAMOTO M. KOBAYASHI
D. KANG C. L. ZHENG Y. SUZUKI Y. IWAYA

Research activities:
Our main interest is a study of the information processing in thehuman auditory system. We apply a psycho-acoustical approach to thestudy of fundamental characteristics of the human auditory system suchas timbre perception, loudness perception, characteristics extraction,and sound localization. Moreover, in recent years, we are also
investigating human multi-modal information processing including
hearing.

Advanced Acoustic Information Systems（Prof. Y. SUZUKI）
With good knowledge of the human auditory system, we are, at thesame time, aiming at the realization of a 'comfortable' soundenvironment exploiting digital signal processing techniques. Threedimensional sound image control by simulating transfer functions ofsound paths from sound sources to listeners' external ears, and a soundfield simulator based on precise sound field analysis and control are two
examples. These systems are expected to provide a high-quality virtual
sound space, which is keenly required to realize in the multimedia
communication, cyberspace systems and virtual auditory display
systems. Furthermore, we have been devoting a lot of effort to thedevelopment of advanced digital hearing aids.

In this figure, speech intelligibility tests are performed
to investigate the effect of asynchronization between
talking‑face movement and speech sound modified byspeech‑rate conversion technique.

Research topics:
1. Auditory perception process and its modeling (including multi-modal
perceptions).
2. Spatial hearing process and system theory of spatial informationtransmissions.
3. Development of new theories of acoustic digital signal processing.

Acoustic Information Communications（Assoc. Prof. Y. IWAYA）
A lot of efforts are put to realize 3D sound space communication
systems based on the system construction theory and knowledge ofspatial hearing. Based on these systems, future principles forcommunications with a high sense of presence are keenly studied.

Research topics:
4. Spatial hearing communication systems.
5. Multi-modal sound space communications.

28

Head related transfer functions as a fuction of
elevetion. Poles and zeros change systematically withthe rise of elevetion.

2010‐2011(e)25〜31P̲欧文 平成 22/09/22 16:25 ページ 29

Visual Cognition and Systems
R. TOKUNAGA

Staff:
Satoshi SHIOIRI, Professor
Ichiro KURIKI, Associate Professor
Kazumichi MATSUMIYA, Assistant Professor
Rumi TOKUNAGA, Assistant Professor
Mitsuharu OGIYA, Research Fellow
Kazuya MATSUBARA, Research Fellow

M. OGIYA K. MATSUMIYA K. MATSUBARA
I. KURIKI
S. SHIOIRIResearch activities:
Human brain is one of the most adaptable systems in the world.
Understanding the brain functions is one of the most important issues
for evaluating and designing things around us to improve the quality oflife. We investigate the brain through visual functions to apply theknowledge to human engineering and image engineering. Our
approaches include psychophysics, brain activity measurements, andcomputer simulations. Our research field covers visual spatial
perception, 3D perception, color vision, visual attention and visualhaptic integration.

Independent measurements of attended and fixatedpoints. An oversight and a mistake can cause aserious accident under the situation that you drive acar. For example, investigating the relationshipbetween gaze and attention can provide a new insight
into this problem.

Visual Cognition and Systems (Prof. SHIOIRI)Modeling the processes of human vision based on the findings of thestrategies that the visual system uses, we plan to propose appropriate
methods for evaluation of image qualities, efficient way of image
presentation and evaluation of visual environments in general. We also
investigate dynamic selection process in vision with or without attention
to realize prediction system of human perception and action in the
future.

Representation of visual information in the early stageof human visual cortex is still unknown. The
mechanisms of visual information processing will be
investigated by using behavioral studies andfunctional brain‑imaging studies. This study may
reveal the ''optimal coding method'' of the visual
information for human brain.

Research topics:
1. Measurements of spatial and temporal characteristics of visual
attention.
2. Modeling control system of eye movements and visual attention
3. Investigation of early, middle and late vision of 3D perception.

Cognitive Brain Functions (Assoc. Prof. KURIKI)
We investigate the brain functions of visual perception (mainly oncolor perception) using brain-activity measurement and analysis inrelation to visual perception.

Research topics:
4. Representation of color information in human brain
5. Separation and integration of visual information in human brain

29

How does the perceptual system integrate visual andhaptic information in motion processing? Wecompared the magnitude of visual motion aftereffectin the haptic movement condition with that in the no
haptic movement condition. This study may reveal themechanism underlying visual‑haptic integration in
motion processing.

2010‐2011(e)25〜31P̲欧文 平成 22/09/22 16:25 ページ 30

Interdisciplinary Field for Informatics
Staff:
Kaoru TAMADA, Professor
Akihito YOSHIDA, Research Fellow

A. YOSHIDAK. TAMADA

Research activities:
The interdisciplinary field of research combining
nanobiotechnology and information technology attracts our
exceeding interests. These studies stand on the developmentof new materials created by self-assembly of functional
molecules and nanomaterials, leading to new classes ofbiosensing devices. The plasmons, especially the combinationof surface plasmons propagating along the metal-organicinterface and local surface plasmons on metal nanoparticles is
crucial to control and manipulate localized light in nano-scale
for nano-sensing as well as transportation of opto-chemical
information in a nanospace. Our recent study demonstrates
that two dimensional giant crystals composed of silver
nanoparticles can efficiently trap and transport bulk light within
nanosheet. This flexible, transferable nanosheet is thepromising building block for various types of plasmonic devices.
Future biosensing devices require particular designs for themultiple detection of dynamic molecular information. Massive
data collected must be accumulated and analyzed
comprehensively, to be referred quickly and flexibly --- The
development of such advanced biosensing devices is highly
desired on reflection of present sensing systems, in which
nano-scaled local interactions and cooperative phenomena ofmolecules are omitted at the entrance (bio-interface).
Plasmonic devices composed of nanostructured materials withenhanced electromagnetic field will be a solution for thedetection of reaction dynamics with high spatiotemporal
resolution and sensitivity.

Surface plasmon resonance (SPR) spectroscopy

Plasmonic nanosheet composed of Ag nanoparticles

Research topics:
1. Propagating / local surface plasmons and waveguide modes
2. Plasmonic nanosheet composed of Ag nanoparticles
3. Design of devices based on nano-structured materials
4. Characterization of interfaces between various nanomaterials

Characterization of remote photocatalytic reaction of
Ti02 nanotube with Ag nanosheet30

2010‐2011(e)25〜31P̲欧文 平成 22/09/22 16:25 ページ 31

Ubiquitous Communications System
Staff:
Shuzo KATO, Professor
Hiroyuki NAKASE, Associate Professor
Hirokazu SAWADA, Assistant Professor
H. SAWADA

S. KATO

Research activities:

H. NAKASE

Easyultrahighspeedwirelesscommunications

This year focus will be the millimeter beamforming antenna
including “discrete phase control beamforming antenna, lowloss phase shifter, high reliable communications channel
creation” as core technologies for high reliable ultra high speed(3Gbps) transmission by portable terminals based on the global
standardization which has been completed under the leadershipof the COMPA Consortium led by Professor Kato (Fig. 2 and 3).
Also the focus will be extended to low power consumption FEC,
modems for portable terminals and wireless communications
applications such as millimeter wave sensor systems, highreliable multi-point communications systems and so on.

Ubiquitous Communications Device (Assoc. Prof. NAKASE)
Research activities have been taken on high speed andefficient next generation CMOS RF devices. This year focus will
be R&D on 60 GHz high efficient CMOS RF IC composed of adriver circuit and class B power amplifier (Fig.4).

31

Formedbeamswithdiscrete
phasecontrol
Lowloss
phaseshifterHighefficientPA

Antennaarray

Fig. 2 Core technology of Super Digital Home‑ Beamforming antenna
Gainvariation䋺0.9dB

Maxgain䋺14.2dBi$$QWHQQDJDLQ>G%%L@

Ubiquitous Communications Systems (Prof. KATO)

Fig. 1 Conceptual diagram of Super Digital Home$QJOH>GHJUHH@

Fig.3 Performance of 4 element beam forming
antenna Discrete phase (90 degree) control,
12 patterns for all coverage

3$(>@Wireless communications technologies have been providing
various and indispensable communications means ranging fromradio, TV, cell phones, wireless LANs and so on. However,there is big room to improve for more active wirelesscommunications applications such as Super Broad Band
Wireless Communications (Fig.1) which we have been
proposing, remote wireless health check and so on.
In order to realize ubiquitous communications which enablecommunications possible without knowing communications
means consciously, this Laboratory has been carrying out basic
researches and developments on radio propagation,communications systems, equipment and so on with which one
can communicate anywhere, anytime with anybody with thepolicy set by the individual interest.
More concretely, the Laboratory has been doing core / basic
researches in the areas of Modulation/coding, Interference
mitigation/equalization, 60 GHz CMOS RF, Antenna &propagation, and MAC (Medium Access Control) in addition to
Practical wireless systems/equipment development including
sensor systems.
Furthermore, the Laboratory has been contributing/leading
IEEE standardization in millimeter wave communications
systems.

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Fig. 4 Power added efficiency (PAE) of Class‑B
power amplifier 20 % PAE at operation point(Pout=3dBm)

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:29 ページ 32

Software Construction

Systems & Software
Division

Computing Information
TheoryCommunication Network
Systems32

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:29 ページ 33

Information
Contents

Information Social Structure(Visitor Section)33

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:29 ページ 34

Software Construction

Staff:
Atsushi OHORI, Professor
Katsuhiro UENO, Assistant Professor
Akimasa MORIHATA, Assistant Professor
A. MORIHATA

A. OHORI

K. UENO

Research activities:
Today’s software systems are becoming more and more complicated
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
language that can directly represent various resources andautomatically detect potential inconsistencies among the components ina system.
Based on this general observation, our research aims at establishingboth firm theoretical basis and implementation method for flexible yet
reliable programming languages for advanced Internet computation.

SML#, a state of the art compiler

One direction toward this goal is to establish logical foundations forcompilation. We aim at establishing a proof-theoretical framework that
accounts for the entire process of compilation -- including Anormalization and code generation -- as a series of prooftransformations. Another direction is to provide systematic methods ofdeveloping efficient programs by program transformations. Programs
should correspond to their formal specifications. Our approach is to
extract program-development processes by rephrasing thecorrespondence by program transformations. In addition to thosefoundational research, we are also developing a new practical ML-styleprogramming language, SML#, that embodies some of our recent
results such as record polymorphism, rank-1 polymorphism, and highdegree of interoperability with existing languages and databases.

Research topics:
1. Development of SML#, a new ML-style polymorphic programming
language
2. Logical foundations for compilation
3. Integration of databases and programming languages
4. Program transformations for developing/optimizing algorithms
5. Reliable scripting languages for Web programming

34

A framework for deriving algorithms by programtransformations

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:29 ページ 35

Computing Information Theory

Staff:
Yoshihito TOYAMA, Professor
Takahito AOTO, Associate Professor
Kentaro KIKUCHI, Assistant Professor
K. KIKUCHI

Y. TOYAMA

T. AOTO

Research activities:
Equational reasoning is ubiquitous in many areas of computer sciencesuch as automated theorem proving, formula manipulating systems,
algebraic specifications, and functional and logic programming
languages. Rewriting is a mathematical formalism which can offer both
flexible computing and effective reasoning with equations. We aim atdeveloping a unified theory of computational-logical-algebraic systems
based on the theory of rewriting systems combining computations andproofs.

Computing Information Theory（Prof. TOYAMA）
Our research focuses on important theoretical features of the rewriting
paradigm, such as the Church-Rosser property, the termination
property, and the modular property. We are also interested in design
and analysis of automated deduction systems which can offer both
effective computation of functional (or logic) programming languages
and flexible reasoning of automated theorem provers. We areinvestigating program verification and transformation systems based on
automated theorem proving techniques.

Research topics:

Proof by Equational Reasoning→ Computation by Rewriting Systems

1. Rewriting Theory
2. Foundations of Softwares
3. Automated Deduction

Computing Logical Systems （Assoc.Prof. AOTO）
We are developing techniques for verifying important properties ofrewriting systems such as the Church-Rosser property and thetermination property. We are also interested in proving inductive
properties of rewrite systems and lemma generation methods for this.
We are trying to extend these techniques to higher-order rewriting
systems which are amenable for modeling more practical functional
programs.

Research topics:
4. Rewrite Systems
5. Automated Theroem Proving

35

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:29 ページ 36

Communication Network Systems

Staff:
Tetsuo KINOSHITA, Professor
Takuo SUGANUMA, Associate Professor
Satoshi UTSUMI, Research Fellow
T. SUGANUMA T. KINOSHITA

S. UTSUMI

Research activities:
People expect that various networks exist everywhere in the society
and information systems over such networked environment support
everyday life and social activities of people and create new life styles aswell as information society. This laboratory aims at research anddevelopment of advanced network-based intelligent systems.

Intelligent Communication (Prof. KINOSHITA)
It becomes an important problem to develop intelligent systems, which
can cooperate with various people as the human-friendly, easy-to-use,
intelligent partners, in order to support various creative activities ofpeople in an active and autonomic way. To realize such an intelligent
system, we propose a concept called Cyberware as an infrastructure ofcybersociety that provides people a new information environment inwhich people and intelligent systems can work together cooperatively.
We aim at studying advanced information technologies to realize a new
infrastructure of cybersociety based on cooperation and coordination ofboth people and intelligent systems over the networked environment,using the agent based computing technologies.

Research topics:
1. Software Infrastructure of Cyber society (Cyberware)
2. Multiagent framework/Design methodology
3. Knowledge-based communication service infrastructure/ Useroriented networking
4. Agent-based/Knowledge-based/Network-based systems

Symbiotic Communication System (Assoc. Prof. SUGANUMA)
We investigate basic technologies and applications towards nextgeneration information communication environment called "Symbiotic
Communication System," where diverse entities in real world collaborate
with each other harmonically, based on the advanced technologies ofubiquitous computing, agents and multimedia communications.

Research topics:
5. Basic theory, model and architecture for Symbiotic Communication
System
6. Symbiotic care-support system, 3D symbiotic space
7. Next generation ubiquitous network management

36

Cyberware and its applications based on agent based
computing2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 37

Information Contents

Staff:
Yoshifumi KITAMURA, Professor
Terumasa AOKI, Associate Professor
Y. KITAMURA

Research activities:
Good media content has the power to enrich our lives. The effectiveness ofcontent delivery is becoming more and more important in a wide variety offields, such as industry, education, culture, entertainment, and so on.
Expectations of its use in the general public are also increasing.
We are conducting comprehensive research on a variety of content areas tocreate new value by uniting information and communications technologies.
We focus on non-traditional content areas other than movies, music, andgames.

Interactive Content Design (Yoshifumi KITAMURA)
We are conducting research on technologies related to interactive content
which creates new value through interactions with humans.

Fig.1

Research topics:
1. Displays and Interactive Techniques
Original display systems to show visual information accurately andcomfortably, and interaction techniques to use the display systems
effectively (Fig. 1).
2. Dynamic, Interactive, and Autonomous Multimedia Content
Real-time creation of multimedia content which satisfies a variety of userinteractions and environmental changes.
3. Interactive Video Content
New types of interactive content which effectively use real movies taken bycameras and computer animations (Fig. 2).

Fig.2

Creation, Comprehension & Distribution of Digital Content (Terumasa AOKI)We are developing new technologies about intelligent processes throughlifecycles of digital content (creation, archiving, distribution, protection andconsumption).

Research topics:
4. Digital Content Creation Technologies
Simple content creation technologies for all kinds of people such as
automatic 3DCG animation creation system only by scenario input (Fig.3)
and digital cloth fitting room (Fig.4) etc.
5. Digital Content Comprehension Technologies
High-level content comprehension technologies such as automatic
metadata generation for video retrieval, 3D model reconstruction andobjectionable content detection etc.
6. Digital Content Distribution Technologies
Secure/safe or other kinds value-added content distribution technologies
such as high-efficient video coding, content protection, cyclic broadcastingfor content distribution etc.

37

Fig.3

Fig.4

T. AOKI

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 38

Information Social Structure
Masafumi YANO, Visiting Professor

Research activities:

M. YANO

There are close relationship between the way of communication and the
behavior of human beings The communication technology has so rapidly
developed and brought about great social change including globalization ofcommunication and physical distribution Even this sophisticated technology,
however, does not still work in harmony with human nature Because thetoday information systems can only process learned information and requires
all necessary information in advance It means that the present information
system cannot adapt to changing environment In contrast, biological systems
such as human beings can create information necessary to interpret external
stimuli and to control actuators in real-time, by appropriately recognizing andjudging unpredictably changing environment.
We will try to understand how living organisms create information, and torealize a new system for flexible information processing.

䇸 ౒↢ 䇹␠ળᄙ᭽ᕈ䋼᡽ᴦ䋾

Norio SHIRATORI, Visiting Professor
Debasish CHAKARABORTY, Visiting Associate Professor
Hideyuki TAKAHASHI, Research Fellow

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⚗੎
࿾⃿ⅣႺ⎕უ

ዋሶ㜞㦂ൻResearch activities:␠ળ䊝䊂䊦䈱༚ᄬ

Science and technology in the 21st century demands us to deal with thechanges in the global environment, social structure, and aging society. In ourlaboratory, we propose the philosophy of Symbiosis that can absorb andsublate these changes. The focus of our research is the preservation ofEarth from its present crisis and plays a role towards humanity and sociality.
More concretely, we are promoting the theory of Symbiotic Computing andGreen Computing and developing application based on the concept ofsymbiosis.

Ꮢ႐ේℂ

␠ળ

N. SHIRATORIH. TAKAHASHI
D. CHAKARABORTY

䇸 Symbiosis 䇹 society
Diversity< Politics >Symbiotic Computing
Green Computing

Independent, watch-over,and health management
support system

Green-oriented lifestyle environment

Conflict ofcountry or region

Research topics:
1．Symbiotic Computing: Symbiosis between Human and Information
Environment
2．Green Computing and Network Management
3．Net Media / Smart Home / Supervisory Support System
4．Symbiotic Information Social Structure38

Dwindlingbirthrate / aging
population

Environment
disruption

Collapsing Social modelSocialism

Marketfundamentalism

Fig. Symbiotic computing and Information
Social Structure2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 39

Sponsored Division
Environmental‑Adaptive Information andCommunication Engineering

39

2010‐2011(e)32〜71P̲欧文 平成 22/09/27 18:00 ページ 40

Environmental‑Adaptive Information
and Communication Engineering
Staff:
Eiki ADACHI, Professor

E. ADACHI

Research activities:
To embody a humanity-rich-communication by innovating information-and-communication technology (ICT) in thesustainable global society, we have to create human-friendly low-environmental-impact ICT devices and systems by using
electronic materials and device-technology in the research fields of Nanotechnology, Spintronics and Information technology.
Our aim is that the embodiment of low-environmental-impact information devices and electronic equipments based on
fundamental theory of spin and electron; these are designed by systematic survey of the rapidly-changing industry needs andR&D trends.
By analyzing the innovation trend in the fields of environmental and energy technologies, we embody innovative ICT devices
and equipments. Further we would like to lead a related ICT researcher's community to the desirable trend.

Research topics:
1. Manufacturing technology research for environmental-load-reducing ICT devices and equipments
2. Fundamental research for ICT devices and equipments reducing environmental destruction by human activities
3. Survey research for industry needs and R&D trend induced by moving to an environmentally sound society

A smart city balanced between human society and natural environment

40

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 41

Nano‑Spin
MemoryAtomically Controlled
Processing

Laboratory for Nanoelectronics
and Spintronics
Nano‑Molecular Devices

Semiconductor
Spintronics

41

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 42

Laboratory for Nanoelectronics
and Spintronics
Director㧦Junichi MUROTA
Cooperation Section

Ryutaro SASAKI
Sadao TSUCHIDA

Staff:

Toshiyasu MEGURO

Director: Junichi MUROTA, Professor
Cooperation Section
Ryutaro SASAKI, Technical Official
Sadao TSUCHIDA, Technical Official
Toshiyasu MEGURO, Research Fellow

S. TSUCHIDA J. MUROTA T. MEGURO R. SASAKI

Research activities:
The Laboratory for Nanoelectronics and Spintronics of the Research Institute of Electrical Communication wasestablished on April of 2004. Its purpose is to develop and establish the science and technology of nanoelectronics andspintronics for information technology. Utilizing the facilities installed in the Nanoelectronics-and-Spintronics building andunder collaboration between the RIEC and electro-related laboratories of the Graduate Schools of Engineering,
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: Atomically Controlled Processing, Semiconductor Spintronics and Nano-Molecular Devices; together with thegroups of Intelligent Nano-Integration System, Quantum-Optical Information Technology, and Ultra-Broadband Signal
Processing. These groups cooperatively carry out the research aimed at establishing a world-wide COE in the researcharea of nanoelectronics and spintronics.

42

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 43

COE of International Research Collaboration

Based on the program(FY2005-2009) to build a system for international research collaboration by Special Funds for
Education and Research (Ministry of Education, Culture, Sports, Science and Technology, Japan), we aim to establish
COE in research fields of “Fabrication and application of semiconductor 3D-nanostructures”, “Establishment andapplication of spin-control technologies in semiconductors”, and “Realization and application of information processing
using molecular nanostructures”.
International conferences
have been organized withresearch groups in LNS.

Research collaboration
with visiting professors

COE of International
Research Collaboration

imec(Belgium

Massachusetts
Inst. Tech. (USA)

Universityof Vigo(Spain)SendaiInternational-collaborative
Research System

CNRS(France)
University of
Stuttgart(Germany)

Harvard
University (USA)

IHP & Berlin
Institute ofTechnology(Germany)

Polish Academy of
Sciences (Poland)

Chinese Academyof Sciences (China)

Princeton
University㩷
(USA)
University㩷 ofArgonne National
California (USA) Laboratory (USA)

Academic Exchange Programs
IHP-Innovations for High Performance microelectronics, Germany
Berlin Institute of Technology, Germany
Interdisciplinary Center on Nanoscience of Marseille (CINaM)-CNRS/University of Mediterranean, FranceInstitute of Semiconductors, Chinese Academy of Sciences, China
Institute of Physics, Polish Academy of Sciences, Poland
University of California, Santa Barbara (UCSB), USA
Harvard University, USA

International Symposium held in LNS, RIECInternational Workshop on New Group IV
Semiconductor Nanoelectronics (RIEC Symp.)(1st: May 27‑28, 2005; 2nd: October 2‑3, 2006;
3rd: November 8‑9, 2007, 4th: September 25‑27, 2008 ;5th: January 29‑30, 2010)

3rd Int. Workshop on New Group IV
Semiconductor Nanoelectronics

RIEC Symposium on Spintronics(1st: February 8‑9, 2005; 2nd: February 15‑16, 2006;
3rd: October 31‑November 1, 2007, 4th: October 9‑10, 2008;
5th: February 5‑6, 2010)

International Workshop on Nanostructure &Nanoelectronics(1st: November 21‑22, 2007; 2nd: March 11‑12, 2010)

RIEC‑CNSI Workshop on Nano & Nanoelectronics,
Spintronics and Photonics(1st: October 22‑23, 2009)43

2nd RIEC Symposium on Spintronics‑
MgO‑based Magnetic Tunnel Junction‑
Left: Albert Fert (received 2007 Nobel
Prize in Physics); Right: Russel Cowburn

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 44

Atomically Controlled Processing

Staff:
Junichi MUROTA, Professor
Masao SAKURABA, Associate Professor
M. SAKURABA

J. MUROTA

Research activities:
For highly functional semiconductor devices with ultrahigh speed and ultralow
power for the Si LSIs, our atomically controlled processing technology by control ofreaction in low-temperature CVD (Chemical Vapor Deposition) becomes important
increasingly. Utilizing the technology, we aim to create non-equilibrium straincontrolled Si-Ge-C group IV semiconductors with high carrier concentration and highcarrier mobility by advancing atomically controlled heteroepitaxial growth of Si, Ge,
SiGe, SiGeC and impurity (B, P, C, N and so on) to the extremity. Moreover, we also
aim to establish a technological basis for highly controlled nanometer-order threedimensional structure formation.
By the above researches, highly strained nanometer-order three-dimensional
structures and room temperature resonant tunneling structures with higher
performance which exceeds the limit of physical properties in use of existing Si, SiGe
alloy and Ge materials will be created. Simultaneously, by applying them to device
fabrication, creation of group IV semiconductor quantum-effect nanodevice applicableto the large scale integration will be expected.

Atomically Controlled Processing (Prof. MUROTA)

Atomically controlled processing systems for group IV
semiconductors

The following researches are being advanced: (1) Control of extremely high carrier
concentration due to non-equilibrium atomically controlled heteroepitaxial growth, (2)Modulation of energy band structure and carrier mobility due to introduction of
atomically controlled strain into Si and Ge, (3) Formation of the nanometer-orderthree-dimensional structure with nanometer-order thickness utilizing CVD
heteroepitaxial growth of unstrained Si/strained SiGe/Si heterostructures andselective etching with atomic layer control to form highly strained Si and SiGe layers
and to achieve extremely high carrier mobility in Si-Ge materials.

Research topics:
1. Atomically controlled heteroepitaxial growth of Si-Ge-C group IV semiconductors
2. Atomic layer doping into nanometer-order heterostructures of group IV
semiconductors
3. Three-dimensional nanometer-order fabrication of group IV semiconductor
heterostructures
4. Fabrication process of Si-based highly strained nanometer-order heterostructuredevicesAtomic lattice image of a SiGe heterostructuregrown by CVD at 500℃.

Group IV Quantum Heterointegration (Assoc. Prof. SAKURABA)
The following researches are being advanced: (1) Atomic-order control of highly
strained group IV semiconductor heterostructure formation in a nanometer-orderultrathin region which utilizing plasma CVD reaction at low temperatures without
substrate heating, (2) Systematic investigation and control of charge transportphenomena including quantum phenomena in the highly strained group IV
semiconductor heterostructures to find out novel electronic properties, (3)Heterointegration of the group IV semiconductor quantum heterostructures and highperformance nanodevices into the Si large-scale integrated circuits.

Research topics:
5. Low-damage plasma CVD process without substrate heating for epitaxial growth ofhighly strained group IV semiconductors
6. Large-scale integration process of group IV semiconductor quantum
heterostructures
7. Fabrication of high-performance nanodevices utilizing group IV semiconductor
quantum heterostructures

44

Atomically controlled processing for group IV
semiconductors.

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 45

Semiconductor Spintronics（Nano‑Spin Memory）
Staff:
Hideo OHNO, Professor
Fumihiro MATSUKURA, Associate Professor
Keita OHTANI, Assistant Professor
Mohsen GHALI, Research Fellow

Yuzo OHNO, Associate Professor
Shoji IKEDA, Associate Professor
Shunichiro MATSUZAKA, Research Fellow
Katsuya MIURA, Research Fellow

K. OHTANI K. MIURA F. MATSUKURA S. MATSUZAKA M. GHALI
S. IKEDA H. OHNO Y. OHNO

Research activities:
In order to realize new functional spintronic and high-speed devices, ourresearch activities cover the areas of preparation, characterization, andapplication of new classes of solid state materials as well as their quantum
structures, in which electronic and spin states can be controlled.

Functional Spintronics (Prof. Hideo OHNO)
We are working on the preparation of quantum structures based on
semiconductor and metal materials as well as their characterization byelectrical, optical, and magnetic means, in order to realize new functional
devices with low power consumption, high-speed operation, and high density.

Research topics:
1. Semiconductor spintronics
2. Quantum cascade structures and their application to THz optical devices
3. Growth and characterization of semiconductor quantum nanostructures
4. Magnetic metal devices and their application
Direct magnetometry of electric‑field effect onmagnetic semiconductors.

Functional Spin Photonics (Associate Prof. Yuzo OHNO)
We are studying the properties and coherent dynamics of electron andnuclear spins in semiconductor quantum structures by using such as highsensitivity and high-time resolution optical characterization technique toestablish novel spintronic devices technology.

Research topics:
5. Growth and characterization of electrical, optical, and spin properties ofsemiconductor quantum nanostructures
6. Spin coherence in semiconductor nanostructures and its application toquantum information technology and low power consumption technology

A prototype of 32 Mbit SPRAM with access time of
32 ns and writing time of 40 ns.

We are working on the fabrication and characterization of spintronics
materials and their based structures, in order to demonstrate new principle ofspintronic device operation.

㪄㪈㪪㪟

7. Properties and application of magnetic semiconductors and their quantum
structures

Nano-Spin Memory (Associate Prof. Shoji IKEDA)
We are developing technologies to realize high-performance low-power
consumption spin memory and logic devices using magnetic tunnel junctions(MTJs) consisting of ferromagnetic metal electrodes with in-plane orperpendicular magnetic anisotropy and insulating barrier.

Research topics:
8. Magnetic tunnel junctions with high output voltage
9. Metal-based spintronics devices
10. Spin transfer torque memory and logic devices

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Research topics:

V 㩷㪲: 㫄 㪆㫓㪼㫓㪴

Functional Spintronics Materials (Associate Prof. Fumihiro MATSUKURA)

㪈㪇㪈

5 [mV/Pm]
10 [mV/Pm]
15 [mV/Pm]
20 [mV/Pm]

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㪈㪇㪈㪍

㪈㪇㪈㪎

-3

n (cm )

㪈㪇㪈㪏

Spin‑Hall conducitvity in n‑type semiconductor GaAs vscarrier concentration has been measured by optical means.

45

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 46

Nano‑Molecular Devices

Staff:
Michio NIWANO, Professor
Yasuo KIMURA, Associate Professor
Yuki AONUMA, Assistant Professor
Y. KIMURA M. NIWANO

Y. AONUMA

Research activities:
Miniaturization and performance improvement of various devices has
been being sustained by the tremendous progress of the semiconductor
fine processing technology. On the other hand, nanotechnology orbiotechnology to prepare and manipulate biomolecules,
supramolecules, and nanostructures with unique electric and opticalproperties that are hardly obtained from other materials are advancing.
Our aim is the realization of molecule-sized electronic devices that canprocess various more sophisticated tasks by application of these uniquematerials based on the Si technology.

Nano-Molecular Devices（Prof. NIWANO）
Sensing systems for analysis of biological materials such as DNA andprotein molecules at the Si semiconductor surfaces that manufactured
and controlled by Si technology are developed. Observation equipments
for biological materials and cultured cells such as nerve cells aredeveloped to elucidate the mechanism of communication and signal
processing between the cells.

Fig.1: Apoptosis (Programmed cell death) of cells andinfrared spectroscopy for the analysis of cellfunctions

Research topics:
1. Analysis of biological functions at semiconductor surfaces (SurfaceBiotronics)
2. Development of bio-sensing systems
3. Investigation of the signal processing of the nerve cell network

Nano-Electronic Device（Assoc. Prof. KIMURA）
The mechanism of formation processes of nanostructures isinvestigated. Based on the elucidated mechanism, the nanostructureformation process is controlled by the semiconductor fine processing
technology. The novel processes will be able to generate functions of
nanostructures simultaneously with control of the position of them tofabricate nano electronic devices.

Fig.2: The structure of a single electron transistor(SET) fabricated through anodization

Research topics:
4. Fabrication of nano electronic devices through electrochemical
process.
5. Fabrication of dye-sensitized solar cells using anodic TiO2
nanotubes.
6. Development of high-power organic electronic devices using
supramolecules or organic molecules46

Fig.3: An organic field‑effect transistor and a rubrene
single crystal

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 47

Real‑World
ComputingLaboratory for
Brainware
Systems

New Paradigm
VLSI System

Intelligent Nano‑Integration
SystemMicroarchitecture47

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 48

Laboratory for
Brainware Systems
Staff:
Director: Koji NAKAJIMA, Professor

K. NAKAJIMA

The Laboratory for Brainware Systems of the Research Institute of Electrical Communication was established in 2004.
Its purpose is to contribute to the research and development of advanced information science and technology for
Brainware systems which realize a seamless fusion of the changeable and complex real world and the cyber space.
We aim at establishing scientific and technological foundations for Real-World Computing (section), New Paradigm
VLSI System (section),Microarchitecture (section), Cyber Robotics (planning section), and Next-Generation Human
Interface (planned section). The Laboratory for Brainware Systems consists of the above six sections which cooperatively
carry out the research. At the same time they serve as a laboratory for nation-wide cooperative research in the field ofBrainware systems.
The technology developed in the Laboratory is expected to enhance the research carried out in the four Divisions of theInstitute, and the research conducted in the Divisions, in turn, is expected to provide scientific basis for the information
technology developed in the Laboratory.

48

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 49

Real‑World Computing

Staff:
Koji NAKAJIMA, Professor *Yoshinari MAKINO, Assistant Professor
Kazuhiro SAKAMOTO, Assistant Professor
Y. MAKINO K. NAKAJIMA K. SAKAMOTO

Research activities:
Our main aim is to understand highly harmonic and autonomous
biological-information systems in order to propose new designingprinciples for building innovative systems. Today, state-of-the-art robots
display a high level of performance in a predictable and regulated
environment. However, they display very poor performance in realworld: an unpredictable and unregulated environment. Why? Because
the controller of today's robots can only process learned information, it
requires all the necessary information in advance, and without that it will
fail to control its own body. Therefore, when the robots encounter new
information in an unknown environment they don’t have the ability toprocess it and consequently cannot adapt to a changing environment. In
contrast, biological systems such as human beings can create
information necessary to interpret external stimuli and to control
actuators in real-time, by appropriately recognizing and judging
unpredictable changes in the real-world.
To understand how living organisms create information, we study
biological mechanisms of object recognition, speech recognition,
learning and memory, and voluntary-movement control, with various
methods such as psychophysics, neurophysiology, computational
simulation, developing robot control system.

Research topics:
1. Mechanisms of learning and memory in olfaction
2. Visual recognition by integrating motion vision and form vision
3. Real-time control mechanisms for voluntary movements

49

Manipulandum system for arm reaching movements.
Control mechanisms for voluntary movements can beclarified by measuring motions under various
environmental conditions.

2‑joint‑6‑muscle arm robot. By using the redundantactuators and the sensory information about thejoints and the actuators, the controller can create
movements appropriate to unpredictableenvironments.

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 50

Intelligent Nano‑Integration System

Staff:
Koji NAKAJIMA, Professor
Shigeo SATO, Associate Professor
Takeshi ONOMI, Assistant Professor
T. ONOMI K. NAKAJIMA S. SATO

Research activities:
Our research activities cover the fields of architectures of Braincomputing systems, characterization and application of artificial neuralnetworks, and fabrications of intelligent integrated circuits, andexploitation of new devices for neural circuits.

Intelligent Nano-Integration System (Prof. Koji NAKAJIMA)
We have constructed a stochastic artificial neural network with one
million synaptic units, analyzed the dynamic behaviour of neuralnetworks aiming at a time-dependent data processing, succeeded topropose a system where we are able to get off successfully from any
local minima fallen into on the way of data processing in neuralnetworks, and fabricated its prototype hardware system on the silicon
microchip for brain computing systems. We have also presented an FFTMicrochip of a neural network

and a neural system operated by using a flux quantum logic insuperconducting integrated circuits.

Research topics:
1. Basic architecture for integrated active Brain computers
2. Dynamic intelligent associative memory system
3. Superconducting single flux-quantum data-processor

Integrated Superconducting Quantum System (Assoc. Prof. Shigeo SATO)
We study on implementation of high-Tc superconductor multi qubits
using intrinsic Josephson junctions and neuromorphic adiabatic
quantum computation algorithms for practical solid-state quantum
computer and its application to brain computing systems.

Research topics:

Microchip of a single flux‑quantum circuit

4. High-Tc Superconductor Qubit
5. Adiabatic Quantum Computation Algorithm50

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 51

Microarchitecture

Staff:
Shoichi MASUI, Professor
Takana KAHO, Visiting Associate Professor
Illani Mohd NAWI, Reseach Fellow
T. KAHO

S. MASUII. M. NAWI

Research activities:
Ubiquitous society has been established by the deployment of various
wireless systems ICs, and it demands advances in mixed-signal (analog
and digital) design technique as well as higher integration through SoC(System on a Chip). Our research activities include architecture andcircuit design of mixed-signal SoC applicable to sensor network systems
for the investigation of brain activities researches along with mixedsignal topdown design methodologies. Since a mixed-signal SoC
combines RF/analog and digital blocks to minimize cost and power
consumption, scaled CMOS technology must be used to minimize thedigital block area. However, the associated process variations andmismatch due to the scaling restrict performance of RF/analog circuits;
moreover, increasing mixed-signal design complexity tends to result in
the design time elongation and the increase of NRE.
Our approaches to solve these problems are to expand digitalassisted analog circuit enhancement techniques to realize mixed-signal
platform, and to develop automatic design optimization flows for
RF/analog circuit. The mixed-signal platform includes the softwaredefinable RF/analog circuit and the integration of CMOS-based
nonvolatile memory for the control of digital-based analog circuit
calibration. We focus on the development and deployment of gm/ID
lookup table design methodology to minimize the power consumption of
RF/analog circuits in scaled CMOS technologies.
The planned research project will take advantage of collaborations
with semiconductor industries and EDA (Electronic Design Automation)
vendors and relationships with oversea universities and startup
companies.

Mixed Signal Platform

Transceiver IC for Sensor Network Systems

Research topics:
1. Mixed-signal SoC architecture and circuit design for wireless sensor
network systems
2. Design automation and associated topdown design methodologies
for RF/analog circuits.
3. Design and applications of software-definable mixed-signal circuits
4. Design and applications of nonvolatile memory

51

Vision of Collaboration

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 52

New Paradigm VLSI System

Staff:
Takahiro HANYU, Professor
Masanori NATSUI, Assistant Professor
Atsushi MATSUMOTO, Assistant Professor
Naoya ONIZAWA, Research Fellow

N. ONIZAWA T. HANYU

M. NATSUI A. MATSUMOTO

Research activities:
Nonvolatile Logic Technology

Rapid progress in recent deep submicron regime has led to the

Use of MTJ devices
Storage functions are merged into a logic-circuit planecapability to realize giga-scaled embedded systems on a chip, while thecommunication bottleneck between memory and logic modules has

BC

increasingly become a serious problem. In addition, power dissipation

Ṷ▚Aand device-characteristic variation have been also the emerging

Ich

focus on a “new-paradigm VLSI computing” concept that investigatesthe optimal design through all the VLSI design layers such as a

-Ich

Compared with a CMOS implementation

Dependable MVL circuits
Adaptive Control of Current Source

VD

algorithm level. The use of “logic-in-memory VLSI architecture,” wherestorage elements are distributed over a logic-circuit plane, makes global

VI

To implement a logic-in-memory VLSI

compactly, we utilize multi-functional and nonvolatile devices such as
ferroelectric devices, TMR (MTJ) devices and phase-change devices.
We are also focusing on other challenging research subjects concerningwith a new-paradigm VLSI computing system.

Preliminary researchsubjects in our laboratory are listed below:

Cut off unused
current sources

D

V
CO

Low power
dissipationI

MTJ-Based Caribration
MTJ device
VO

VO’

VIN

VT

R1

R2

before application

CMOS
Power

wires reduced greatly.

LUT component for Nonvolatile-FPGA䋨 㪉㪇㪇㪐㩷㪪㫐㫄㫇㫆㫊㫀㪸㩷㫆㫅㩷㪭㪣㪪㪠㩷㪚㫀㫉㪺㫌㫀㫋㫊㪃㩷㪉㪇㪇㪐)

Area/Power Reduction & Reconfigurability

device/material design level, a circuit-architecture level, a logicsynthesis level, a system-architecture level, and an application-oriented

MTJ devices

Merge memory/logic
functions
ЈCompact structure

R

VLSI problems causing performance and reliability degradation, weSelection
Transistor Tree

Magnetization
directions aremaintained underpower-off state(Nonvolatile)

⸥ᙘ

Itmr

AP
P

problems in the recent VLSI chip. In order to solve such the recent

Logic circuit by MOS
transistors and MTJ
deviceAfter application
V

Vo

MVCM

o

V
o’

Vo’

Proposed
MVCM Frequency

Variation is reduced to 33%ૐ㔚ജᕈߣ㜞ା㗬ᕈࠍหᤨߦ㆐ᚑ

Asynchronous Data Transfer and Its Application㪘㫇㫇㫃㫀㪺㪸㫋㫀㫆㫅䋺㪥㫆㪚㩷㩿㪥㪼㫋㫎㫆㫉㫂㪄㫆㫅㪄㪸㪄㪚㪿㫀㫇㪀

NoC is …
Router-based datatransfer
scheme, which achieves
䂾 High flexibility
䂾 High throughput

Research topics:

Evaluation flow
for asynchronous
NoC
Precise and efficientevaluation technique

Wire: 5mm

1. Logic-in-memory VLSI architecture and its applications

Spacer 0

2. Self-controllable VLSI processor and its applications
3. Information-communication super chips based on new-paradigm
VLSI architecture

Design ofdependable andhigh-throughput
router for NoC

ReceiverTransmitter

QDI based fast router for NoC

Spacer 1

PIN

0

0

0

1

NIN

0

1

0

0

OUT1.50

0

0

1

0

1

1

OUT0.51

Asynchronoustransfer withsmall voltage swing
Low-powertransmission isrealizedD
Dependabled bl VLSI byb DependableDd bl AsynchronousAhTransferTf

4. Device-model-based new-paradigm VLSI computing architecture
5. Asynchronous-control/multiple-valued data representation-based
circuit for a high-performance Network-on-Chip52

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 53

Technology Development
Division
Mobile Wireless Technology
Group

Research Center for21st Century Information
Technology
Technology Development
Division
Storage Technology Group

53

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 54

Research Center for 21st Century
Information Technology (IT‑21 Center)
Director: Hiroaki MURAOKA, Professor

Project Planning Division
Makoto FURUNISHI, Visiting Professor
H. MURAOKA

Technology Development Division
Development of Dependable Wireless System and Device
Project Leader : Kazuo TSUBOUCHI, Visiting Professor
Tadashi TAKAGI, Visiting Professor

Development of Super High-Speed Mass Storage
HDD Systems
Project Leader : Hiroaki MURAOKA, Professor *Hajime AOI, Visiting Professor
Takehito SHIMATSU, Associate Professor
Kiyoshi YAMAKAWA, Visiting Associate Professor

The purpose of the IT-21 center is development of practicaltechnologies for IT based on the advanced technologies of RIEC
with the partnership among Industry, Government and University.
The term of development is limited less than 5 years. The projects
are planed on matching with both basic technologies in the
University and application in the Industry. Combination of thetechnologies of the University and Industry makes practicaltechnologies with availability for the commercial products. The
center actively accelerates to obtain the intellectual properties
generated from the development of practical technology to theIndustry.

54

IT‑21 Center2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 55

Technology Development Division
Mobile Wireless Technology Group
Staff:
Kazuo TSUBOUCHI, Visiting Professor
Tadashi TAKAGI, Visiting Professor
K. TSUBOUCHI

T. TAKAGI

Research activities:
Mobile wireless communication technology is one of the significant
communication technologies that support the IT society, connected withthe high-speed backbone network using optical fiber. Evolution of themobile wireless communication technology in Japan is indispensable tokeep the leadership in this technology area in the world.

Ultra‑small‑size 3D SiP
millimeter wave wirelessterminal for
uncompressed HDTV

With the partnership of Japanese major mobile wirelessmanufacturers and Japanese Type I carrier, the mobile wireless

5GHz‑Band 324Mbit/s
Wireless LAN terminal

technology group of IT-21 center has been developing ultra-high-speed
wireless communication technology and an ultra-small wireless terminalby using three-dementional (3D) system-chip and using high density
packaging for next generation mobile wireless communication. As aresult, so far, (1) 5GHz-band 324Mbit/s wireless LAN terminal, (2) ultrasmall size 3D system-in-package (SiP) millimeter wave wireless terminal
for uncompressed high definition television (HDTV) transmission havebeen successfully developed, and (3) seamless handover technology
for wide area broadband mobile wireless access (MBWA) and seamlessroaming technology between MBWA and wireless LAN have beensuccessfully demonstrated by field tests.
From 2007, the mobile wireless technology group will make a

MBWA field test (Base station)

progress toward development of advanced practical technologies for
new concept "Dependable Air" which integrates all wireless systems. In
addition, our group has a will for contributing to the industry in Sendai
area such as build up venture companies based on the developed

Dependable Air Broadcast
CDMA

OFDMA

W-CDMA
PDC cdmaOne

Dependable
Wireless System

HSPA

cdma2000

Wide-area(Cellular)

802 20802.202. High-speed and high frequency mixed signal Si system chip for

Plant

802.11a/g

802.11nUltra highdata rate

10m
Short-range
g Zigbee802.15.4
communication

mmWave802.15.3c

Bluetooth802.15.1

UWB

RF-ID
Standard
Non IEEEIEEE (IP friendly)

Dependable Wireless System

100k

1M

Narrowband

10M
Broadband

100M

Dependable Air

55

MedicalAgriculture
Fishery
LTEAdvanced䊶䊶䊶䊶䊶䊶
VHT SG䊶䊶䊶High data rate

Wireless LAN

Smart GridLTE

Wide-area
802.11 802.11b

PHS

Research topics:

Multi-Mode on One-Chip

802.16e100m

1. Broadband wireless communication technologies for Dependable Air

Car䊶ITSDistance
1000m

practical technologies.

PhysicalDistribution

Network

TDMA

1G
10G
Data rate [bit/s]

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 56

Technology Development Division
Storage Technology Group
Staff:
Kazuhisa FUJIMOTO, Professor
Takehito SHIMATSU, Associate Professor
Susumu OGAWA, Research Fellow
Masaki YAMADA, Research Fellow
Yuichi OSAWA, Research Fellow
Daisuke INOUE, Research Fellow

Hajime AOI, Visiting Professor
Kiyoshi YAMAKAWA, Visiting Associate Professor
Hideki SAGA, Research Fellow
Hirotoshi AKAIKE, Research Fellow
Hiroyasu KATAOKA, Research Fellow

K. YAMAKAWA M. YAMADA H. AKAIKE D. INOUE H. KATAOKA H. SAGA Y. OSAWA
S. OGAWA
T. SHIMATSU K. FUJIMOTO
H. AOI

Research activities:
High density and high data-rate hard disk drive (HDD) information
storage technologies are core technologies for IT infrastructure. In
Japanese universities, only the Research Institute of ElectricalCommunication (RIEC) has maintained a comprehensive progress of
research into information storage technology, including materials,
devices and theory.
In March 2007, the IT21 cooperative research project between
industry, academia and government was successfully finished. An ultrahigh small perpendicular magnetic recording prototype HDD and basic
technologies for densities of 0.5 to 1 Tbits/inch2 were developed during

MFM images of a L11‑CoPt patterned films (One offundamental technologies to realize densities of over2 Tbits/in2.

the project.
A new project ;Development of super high-speed mass storage HDD
systems started in August 2007 under the collaborations between RIEC
including IT21 storage technology group, major Japanese HDD
manufacturers and other laboratories researching related technologies
within Tohoku University.
The goals of this project are to develop the perpendicular recording
technologies required for higher than 2 Tbits/inch2 recording density
and, based on these technologies, to develop the system architecture
for realizing large capacity, high performance and low power
consumption storage systems.
2‑dimension data allocation method with an accessprediction

Research topics:
1. Development of fundamental technologies for the recording densities
over 2 Tb/inch2; high sensitivity sensors, high recording resolution
SPT writers and high-density media including patterned media.
2. Development of a system architecture for high performance and low
power consumption storage systems.

56

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 57

Fundamental Technology Center

Flexible Information System Research Center
Fundamental Technology Center
Management Office for Safety and HealthFlexible Information System
Research Center57

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 58

Flexible Information System Research Center

Staff:
Director: Yôiti SUZUKI, Professor
Yoshihito TOYAMA, Professor*
Gen KITAGATA, Associate Professor
Toshiaki OSADA, Research Fellow

Tetsuo KINOSHITA, Professor*
Kazuto SASAI, Assistant Professor
T. OSADA G. KITAGATA

Y. SUZUKI

Research activities:
The present information systems represented by computers are
inflexible systems, because their uses are predefined and they provide
only the fixed processing and functions. The flexible information systemon the other hand, is a system which can perform the flexible
information processing adopted to the human intention and situation of
its environment, and this can correspond to the flexible human thinking
using multi-dimension perceptional information such as the visual andauditory senses fully, beyond the limitations of the principles of theinflexible information processing. The aims of this research are theexploration of principles of the flexible information processing throughthe theories and experiments, and the establishment of their systemconstruction methodology.
Moreover, we also study the flexible distributed systems for advanced
organization, utilization, administration, operation and dispatching of
science information, and are aiming at the establishment of construction

Network room

methodology of them confirming the effectiveness of the system withpractical applications to the scientific information of RIEC on the
network.

Research topics:
1. Information collection, organization, dispatching, utilization andresearch support environment.
2. Advanced maintenance, management and operation of network.
3. Relation between technology and ethics.
4. Perceptual information processing of living bodies and intelligent UIand OA.

Flexible Global Network

58

K. SASAI

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 59

Fundamental Technology Center

Staff:
Director: Yoichi UEHARA, Professor
Nobuyuki SATO, Assistant Professor
Katsumi SAGAE, Technical Official
Tamotsu SUENAGA, Technical Official
Keisuke SATO, Technical Official
Hiroshi WATANABE, Technical Official
Yuji KONNO, Technical Official
Choichi TAKYU, Technical Official

Fumitaka SAITO, Technical Official
Koichi SHOJI, Technical Official
Maho ABE, Technical Official
Kento ABE, Technical Official
Munetomo SUGAWARA, Technical Official
Ryuji YONEZAWA, Technical Official
Shigeto AGATSUMA, Technical Official

N. SATO
H. WATANABE T. SUENAGA Y. KONNO
K. ABE
K. SAGAE K. SATO R. YONEZAWA M. ABE C. TAKYU
S. AGATSUMA K. SHOJI F. SAITO Y. UEHARA M. SUGAWARA

Pioneering research and development (R&D) in a wide range of
disciplines ranging from basic sciences to applied communication
technologies has been carried out in the institute. The technical officials
have traditionally contributed to R&D through their well-established skills
and considerable experience. To sustain and increase suchcontributions in the future, the institute established the fundamental
technology center in 2007. The technical support commonly required in

Figure 1 Visual display system using a half‑mirror

the institute was reorganized and is now being provided by four
technical divisions: machine shop, evaluation, processing, and software.
These divisions are in charge of the following services.
The machine shop division develops advanced machining techniques
and offers them for the development and manufacture of experimental
apparatuses (e.g., Fig. 1). This division also provides machining
instructions to students and faculty members who perform machining by
themselves. The evaluation division offers various evaluation andmeasurement techniques such as focused ion beam system (Fig. 2) andelectron probe X-ray micro-analyzer (Fig. 3). Glass machining andsupply of liquid helium and nitrogen are also covered by this division.
The processing division is, in cooperation with the evaluation division,

Figure 2 Focused ion beam system (FIB)

responsible for operating and maintaining the project clean room (PCR),
one of the commonly used clean rooms in the institute. Nanometerscale electron beam lithographic techniques and customized opticalfilters for the visible and infrared spectral range can be provided by thisdivision. The software technology division operates and maintains thecomputer networks in the institute.

Figure 3 Electron Probe X‑ray Micro Analyzer (EPMA)

59

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 60

Management Office for Safety and Health

Staff:
Manager: Michio NIWANO, Professor
Deputy Manager: Yoichi UEHARA, Professor
Nobuyuki SATO, Assistant Professor

The Management Office for Safety and Health is an organization withthe objective of maintaining the health and safety of staff and students
working at the institute. The use of chemicals, high-pressure gas andradiation in research activities at the institute entails many risks. The
Management Office for Safety and Health provides support for safety
and health management in facilities such as research laboratories,
experimental facilities, and machine shops through various activities toensure that research activities within the institute are conducted safely
and smoothly.
With respect to safety and health management, the Safety and HealthCommittee, comprising the Director, staff at the institute and industrial
physicians, discusses various matters related to safety and health andthe maintenance of the safety and health management system at theinstitute, and submits recommendations to the Director and FacultyCouncil. The Director and Faculty Council then finalize guidelines asadvised by the contents of these recommendations. The guidelines arethen implemented into actual safety and health management operations
at each of the facilities such as research laboratories.
Under collaboration with these organizations, the Management Officefor Safety and Health takes charge of practices related to safety andhealth, and operates to ensure safety and convenience in research
activities at the institute.

Safety and health seminar

Activity contents:
1. Inspection of and assistance in improving the safety and healthmanagement system and working environment within the institute.
2. Investigation of laws related to safety and health and collection of
information regarding safety and health management.
3. Provision of advice and information to safety and health personnel ineach department.
4. Implementation of various types of safety education targeted at staff
and students.
5. Liaison and coordination with the supervisory authority and otherdepartments on campus.

60

High‑pressure gas seminar2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 61

Research Activities
Study Groups on Electrical Communication

Study Groups on Electrical Communication are organized to solve scientific and technological problems andto promote research and development through the collaboration of the Research Institute of ElectricalCommunication, Group of ECEI (Electrical Engineering, Communication Engineering, Electronic Engineering,and Information Engineering)in Graduate Schools of Engineering, Information Sciences, Biomedical
Engineering, related scientists and engineers inside and outside Tohoku University. The Study Groups on
Electrical Communication consist of 14 Sub-Groups as listed, to deal with specific subjects. Each Sub-Groupholds workshops and the abstracts of the workshops are published annually in The Record of Electrical andCommunication Engineering Conversazione Tohoku University.
Many scientists and engineers not only from universities but also from government laboratories andindustries attend the workshops, present papers, and discuss issues very actively. We are pleased to provide
information on these activities upon request. Please contact the General Chairman or each Sub-Group
Chairman for general information or more specific questions.

Title of Sub-GroupElectromagnetic and Optical Waves Engineering

New Paradigm Computing

Acoustic Engineering

Ultrasonic Electronics

Sendai "Plasma Forum"

Brainware

Sendai Seminar on EMC

Mathematical Physics and its Application

Computer Science

to Information Sciences

Systems Control

Biocybernetics and Bioinformatics

Information-biotronics

Nanoelectronics and Spintronics

Spinics

The 7th International Symposium61

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 62

Symposiums 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.

Past Symposium

1

Title

Date

Quantum Electronics of Light 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 Intelligence

Mar. 8- 9, 1966

4

Thin Film Electronics

Jan.26-27, 1967

5

Crystal GrowthDec.19-20, 1967

61968 Sendai Symposium on Acoustelectronics

Aug.19-20, 1968

7

Current Status and Future Trends of Superconductivity

Jan.22-24, 19708

Speech Information Processing

Feb.24-26, 19719

Surface Acoustic Wave Technology

May.25-26, 197210

Liquid Crystals • Their Molecular Orientations and Application to Display Devices

Dec.13-14, 1974

11

Computer Network

Mar.17-18, 1975

12

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

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

27

Issues and Realization of Pattern Recognition and Understanding

Feb.28-Mar.1, 1991

28

Discrete Algorithms

Oct.17-18, 1991

Perspective for New Computing Paradigm

Feb. 4- 5, 1993

29

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

62

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 63

International Symposium organized by the Institute
1

Title

Date

Intrinsic Josephson Effect and THz Plasma Oscillation in High Tc Superconductors

Feb.23-25, 19972

Design and Architecture of Information Processing Systems Based on The Brain Information Principle Mar.16-18, 1998

3

Novel Techniques and Applications of Millimeter-Waves

Dec.14-16, 1998

4

The International Joint Conference on Silicon Epitaxy and Heterostructures

Sep.13-17, 1999

5

International Workshop on Photonic and Electromagnetic Crystal Structures

Mar.8-10, 2000

6

Physics and Application Spin Related Phenomena in Semiconductors

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

Oct.23-24, 2003

11

3rd International Workshop on New Group IV (Si-Ge-C) Semiconductors

Oct.12-13, 2004

12

3rd International Workshop on High Frequency Micromagnetic Devices and Materials (MMDM3)

Apr.11-12, 2005

13

4th International Conference on Silicon Epitaxy and Heterostructures (ICSI-4)

May.23-26, 2005

14

1st International WorkShop on New Group IV Semiconductor Nanoelectronics

May.27-28, 2005

15

GSIS International Symposium on Information Sciences of New Era: Brain, Mind and Society

Sep.26-27, 200516

The 1st RIEC International Workshop on Spintronics -Spin Transfer Phenomena-

Feb.8-9, 200617

4th International Workshopn on High Frequency Micromagnetic Devices and Materials (MMDM4)

May 8,2006

18

4th International Conference on Physics and Applications of Spin-Related Phenomena in Semiconductors (PASPS-IV)

Aug.15-18,2006

19

2nd International Workshop on New Group IV Semiconductor Nanoelectronics

Oct.2-3,2006

20

2nd RIEC International Workshop on Spintronics

Feb.15-16,2007

21

Japan-China Joint Conference on acoustics, JCA2007

Jun.4-6,2007

22

International Conference on Discovery Science / International Conference on Algorithmic Learning Theory

Oct.1-4,2007

23

The 3rd RIEC International Workshop on Spintronics

Oct. 31-Nov.1,2007

24

3rd International Workshop on New Group IV Semiconductor Nanoelectronics

Nov.8-9,2007

25

International Workshop on Nanostructures & Nanoelectronics

Nov.21-22,2007

26

The 18th International Symposium on Algorithms and Computation (ISAAC2007)

Dec.17-19,2007

27

International Interdisciplinary-Symposium on Gaseous and Liquid Plasmas (ISGLP 2008)

Sep.5-6,2008

28

4th International Workshop on New Group IV Semiconductor Nanoelectronics

Sep.25-27,2008

29

The 4rth RIEC International Workshop on Spintronics

Oct.9-10,200830

GSMM 2009 (Global Symposium on Millimeter Waves 2009)

Apr.20-22,200931

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

Apr.24-25,200932

The 4th International Symposium on Ultrafast Photonic Technologies

Aug.4-5,2009

33

PIMRC2009 (Personal Indoor and Mobile Radio Communications Symposium 2009)

Sep.13-16,200934

2nd RIEC-CNSI Workshop on Nanoelectronics,Spintronics and Photonics(5th RIEC Symposium on Spintronics)

Oct.22-23,2009

35

International workshop on the principles and applications of spatial hearing 2009 (IWPASH2009)36

5th International Workshop on New Group IV Semiconductor Nanoelectronics

Jan.29-30,2010

37

6th RIEC International workshop on Spintronics

Feb.5-6,201038

2nd International Workshop on Nanostructure & Nanoelectronics

Mar.11-12,2010

63

Nov.11-13,2009

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Periodicals Published by the Institute

The Institute publishes the following two periodicals to inform readers on recent research results of theInstitute.
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 theresult of the Graduate Schools of Engineering, Information Sciences, Biomedical Engineering. Since thejournal also aims at publishing general research activities of the Institute and of the Graduate Schools suchas records of the final lectures of retiring professors, records of the Institute Symposium, 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 aweek 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 Tôhoku
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, the publication of the records was
succeeded by the Institute and the records have been published asperiodicals, two times a year recently, since No. 1 Vol. 21 waspublished 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 and researchfacility. Also included are reports on nation-wide co-operative
research projects, international symposium and seminars organizedby members of RIEC, and the reports and evaluation on the RIEC
advisory board members. English version is also avairable since
2007.

64

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 65

Educational Activities

The Institute is keeping close contact with the
Graduate Schools of Engineering, Information
Sciences and Biomedical Engineering, not only inresearch activities but also in educational activities.
For example, all the members of the faculties of theInstitute also hold positions with the faculties of thefour Departments and give lectures there. Moreover,undergraduate and graduate school students related to
the Departments belong to the laboratories of theInstitute for their theses. In 2010, there are 40 undergraduate students, 145 masters course students, and56 doctors course students belonged to the Institute.
Other than the students, Institute’s research
students, Research Fellow of JSPS, and JSPS
Postdoctral Foreign Researchers also engage in
research activities in cooperation with the staff of theInstitute.

Presentation scene at a workshop

Seminar scene at a laboratory

Marathon relay race

Weed out‑the‑garden‑and‑Drink‑beer‑there Meeting65

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 66

International Activities
Many of the staff in RIEC contribute to the development of technology and science in the world by serving
as editors of referees of international journals or by chairing or programming international conferences. In
some fields in electronics, electrical communications, or information engineering RIEC serves as a Center of
Excellence(COE), which attracts many visiting 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:
The Institute of Physics, Polish Academy of Sciences (Poland)
Reesarch Center of Condensed Materials and Nanosciences,
National Center for Scientific Research (France)
IHP-Innovations for High Performance microelectronics(Germany)
Institute of Semiconductors Chinese Academy of Sciences(China)WINLAB, Rutgers University (U.S.A)
University of California, Santa Barbara (U.S.A.)
King Mongkut's Institute of Technology Ladkrabang (Thailand)
The University of York (U.K.)
The Dresden University of Technology (Germany)
Berlin Institute of Technology (Germany)
National Tsing Hua University (Taiwan)
Universite de Technologie de Compiegne (France)
Harvard University (U.S.A.)

International journals in which a staff in
RIEC participates as an editor:
1. Applied Physics Express (APEX)
2. Applied Acoustics
3. Acoustical Science and Technology
4. Higher-Order and Symbolic Computation
5. IEICE Electronics Express
6. IEICE Transactions on Electronics
7. Institution of Engineering and Technology ( IET )8. International journal of Artificial Intelligence, Neural
Networks, and Complex Problem Solving Technologies
9. International Journal of Computer Science andNetwork Seculity
10. International Journal of Information Sciences andComputer Engineering (IJSCE)
11. Journal of Infrared, Millimeter and Terahertz Waves
12. Journal of Ambient Intelligence and HumanizedComputing
13. Journal of Communications and Networks
14. Japanese Journal of Applied Physics
15. Japanese Journal of Applied Physics (JJAP)
16. NPG Asia Materials
17. Nonlinear Theory and Its Applications, IEICE
18. Optical Fiber Technology
19. Optics Communications
20. The Journal of Computer Animation and Virtual Worlds
21. Virtual Journal of Nanoscale Science and Technology

66

International conferences programmed by astaff in RIEC:
1. European Solid-State Device Research Coference(ESDERC)
2. Asia-Pacific Radio Science Conference (AP-RASC)
3. Asia-Pacific Microwave Conference (APMC)
4. Asia-Pacific Workshop on Fundamentals andApplications of Advanced Semiconductor Devices（AWAD)
5. International Conference on Infrared, Millimeter, andTerahertz Waves
6. International Conference on Magnetics (ICM)
7. IEEE International Magnetic Conference (INTERMAG)
8. Conference on Magnnetism & Magnetic Materials(MMM)
9. International Symposium on Advanced Magnetic andApplications (ISAMMA)
10. International Symposium on Surface Science (ISSS-6)
11. 6th International Conference on Molecalar Electronics
and Bioelectronics (M&BE5)
12. Europian Conference on optical Communication(ECOC)
13. ACM Symposium on Virtual Reality Software andTechnology
14. IEEE Symposium on 3D User Interfaces
15. International Symposium on Graphene Devices :technology, Physics and Modeling (ISGD)
16. SPIE International Conference on Defence, Security,
and Sensing
17. International Symposium on Compound Semiconductors(ISCS)
18. The 7th International Conference on UbiquitousIntelligence and Computing
19. Topical Workshop on Heterostructure Microelectronics(TWHM)
20. 4th SiGe, Ge, and Related Compounds: Materials,
Processing, and Devices Symposium (TheElectrochemical Society)21. International Symposium on Technology Evolution for
Silicon Nano-Electronics (ISTESNE)
22. 4th International Workshop on spin Currents and 2nd
International Workshop on Spin caloritronics
23. 6th RIEC International Workshop on Spintronics
24. 5th RIEC International Workshop on Spintronics,
RIEC-CNSI Workshop on Nanoelectronics,
Spintronics, and Photonics
25. Engineering Conference International (ECI)2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 67

26. International Conference of Magnetism (ICM)
27. The 14th International Conference on Modulated
Semiconductor Structures (MSS14)
28. 20th International Colloquium on Magnetic Films andSurfaces (ICMFS)
29. 5th International School and Conference on
Spintronics and Quantum Information Technology(SPINTECH V)
30. 38th International School & Conference on the
Physics of Semiconductors (Jaszowiec)
31. The 6th International Conference on the Physics andApplications of Spin Related Phenomena in
Semiconductors (PASPS-VI)
32. The 37th International Symposium on Compound
Semiconductors
33. ISMVL Technical Committee
34. International Workshop on the Principles and theApplications of Spatial Hearing 2009
35. The 10th western pacific acoustics conference(WESPAC) 2009
36. The 3rd International Universal Communication
Symposium (IUCS2009)
37. The Fifth International Conference on Intelligent
Information Hiding and Mutimedia Signal Processing(IIHMSP2009)
38. International Conference on Functional Programming2009
39. ACE 2009: 5th Advances in Computer Entertainment
Technology Conference
40. 2009 International Advisory Board, Korean Magnetic
Society
41. ISMVL (International Symposium of Multiple-Valued
Logic) 2009
42. VRST 2009: 16th ACM Symposium on Virtual Reality
Software and Technology
43. 22nd International Conference on Indium Phosphide
and Related Material (IPRM2010)
44. The 22nd IEEE International Semiconductor Laser
Conference (ISLC2010)
45. Asia-Pacific microwave Conference (APMC) 2010
46. Joint MMM-Intermag Conference 2010
47. The 9th Perpendicular Magnetic Recording
Conference (PMRC 2010)
48. The 3rd International Symposium on Organic andInorganic Electronic Materials and Related
Nanotechnologies (EM-NANO2010)
49. The 9th International Conference on Auditory-Visual
Speech Processing (AVSP2010)67

50. International Multisensory Research Forum (IMRF)
2010
51. The Sixth International Conference on Intelligent
Information Hiding and Mutimedia Signal Processing(IIHMSP2010)
52. The 4th International Universal Communication
Symposium (IUCS2010)
53. Asia Pacific Vision Conference 2010
54. International Conference Nanoscopio Colloidand
Surface Science (NCSS2010)
55. ACM SIGPLAN-SIGACT Symposium on Principles ofProgramming Language 2010
56. ACM SIGPLAN Workshop on pertial Eualation and
Program Manipulation 2010
57. The 5th International Conference on broadband,
Wireless Computing, Communication and Applications(BWCCA-2010)
58. The 25th International Conference on Advanced
Information Networking and Applications (AINA2010)
59. The 1st International Workshop on Symbiotic andMultiagent Systems (SCMAS-2010)
60. IEEE Virtual Reality Conference 2010
61. ACE 2010: 6th Advances in Computer Entertainment
Technology Conference
62. 3DUI 2010: 5th IEEE Symposium on 3D User
Interfaces
63. 2nd International Symposium on Aware Computing(ISAC2010)
64. 5th International SiGe Technology and Device
Meeting (ISTDM2010)
65. 2010 International Symposium on Nonlinear Theory
and Its Applications (NOLTA 2010)
66. International Workshop on Human and Information
Space Symbiosis (IWHISS2010)
67. First International Workshop on Symbiotic Computing
and Multiagent Systems (SCMAS2010)
68. The 9th perpendicular Magnetic Recording
Conference (PMRC 2010)
69. International Multisensory Research Forum (IMRF)
2011

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 68

RIEC Open Day

The Research Institute of Electrical Communication holds
an open day every year, in order to present our research andeducational activities to the public, university staff, students
and alumni as well as representatives from the industrial
sector.
On Oct. 10(Sat)-11(Sun), 2009, all the research laboratories,
research centers and machine shops of RIEC exhibited
various types of demonstration focused on their respective
research field and activities.
Concerning with groundbreaking accomplishments of the
RIEC, historical devices and instruments developed in the
RIEC were operated, such as magnetron tubes and steel
recorders. Experiments on recent research were also
demonstrated, such as ultra-high speed data transmission
using photonic fiber, experience of symbiozone, fabrication ofgraphene, and operation of micromachines. Furthermore,handicrafts were conducted, such as producing simple anime
movies, play by vision, and making of germanium radios andspectrometers.
We sincerely hope your participation in our open day. The
open day 2010 will be held on Oct.9(Sat) and 10(Sun) thisyear. Brief and easy explanations of our research labs arealso available from the following web pages at any time.
Please feel free to access and enjoy our virtual RIEC openday.
http://www.riec.tohoku.ac.jp/koukai/index.html(Available in Japanese only)682010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 69

Staff (as of 1st July 2010)
Director:Masataka NAKAZAWA,
Professor■ Research Divisions
Information Devices Devision• Nano-photoelectronics
Yoichi UEHARA, Professor
Tetsuya MIYASHITA, Associate Professor*
Satoshi KATANO, Assistant Professor• Quantum-optical
Information Technology
Keiichi EDAMATSU, Professor• Materials Functionality
DesignNorihiro KATAYAMA, Associate Professor*
Yasuyoshi MITSUMORI, Assistant Professor
Takeshi KUTSUWA, Research Fellow
Ryosuke SHIMIZU, Research Fellow
So-Young BAEK, Research Fellow• Solid State Electronics

Simon J. GREAVES, Associate Professor

Masafumi SHIRAI, Professor

Kenji MIURA, Assistant Pofessor

Kazuyuki TANAKA, Professor*• Ultra-Broadband Signal
Processing

Yuji WAIZUMI、Lecturer*
Yoshio MIURA, Assistant Professor
Kazutaka ABE, Assistant Professor• Magnetic Devices（Visitor Section）

Taiichi OTSUJI, Professor
Fumiyuki ADACHI, Professor*
Tetsuya SUEMITSU, Associate Professor
Akira SATO, Assistant Professor

Masahide SASAKI, Visiting Professor

Susumu TAKABAYASHI, Research Fellow

Koichiro HONDA, Visiting Professor

Stephane Albon BOUBANGA TOMBET, Research Fellow

Jun TAKEDA, Visiting Professor
Stefano CHIUSSI,Visiting Associate Professor

Mitsuyuki NAKAO, Professor*
Hideo KOSAKA, Associate Professor

Xiao ZHOU, Professor*• Basic Technology for
Broadband Communication（Visitor Section）

Broadband Engineering Division

Koji MIZUNO, Visiting Professor• Ultrahigh-speed OpticalCommunication

Atsufumi HIROHATA, Visiting Associate Professor

Masataka NAKAZAWA, Professor
Junji TADA, Designated Professor
Hirohito YAMADA, Professor*

Maki SUEMITSU, Professor

Yuji MATSUURA, Professor*

Yasutake TOYOSHIMA, Visiting Professor

Toshihiko HIROOKA, Associate Professor

Koji KOTANI, Associate Professor*

Yasuo OHDERA Associate Professor*

Hirokazu FUKIDOME, Assistant Professor

Masato YOSHIDA, Assistant Professor• Dielectric Nano-Devices• Applied Quantum Optics

Masaaki INUTAKE, Visiting Professor

Human Information Systems Division• Electromagnetic
Bioinformation Engineering
Kazushi ISHIYAMA, Professor
Kotaro HAMASHIMA, Professor*
Masahiro YAMAGUCHI, Professor*
Shuichiro HASHI, Associate Professor

Yasuo CHO, Professor

Hiroshi YASAKA, Professor

Satoru TSUDA, Associate Professor*

Sinichiro UMEMURA, Professor*

Jun-ichi SHIKATA, Associate Professor

Yasushi ENDO, Associate Professor*

Yoshiomi HIRANAGA, Assistant Professor

Takashi WATANABE, Associate Professor*

Kohei YAMASUE, Assistant Professor
Yasuo WAGATSUMA, Technical Official
Noriaki OKAZAKI, Research Fellow• Plasma Electronics
Akira ANDO, Professor*
Satoru IIZUKA, Associate Professor*• Wireless Info Tech

• Advanced Acoustic
Information Systems

Noriharu SUEMATSU, Professor

Yôiti SUZUKI, Professor

Jun-ichi KUSHIBIKI, Professor*

Hiroshi KANAI, Professor*

Suguru KAMEDA, Assistant Professor

Yukio IWAYA, Associate Professor

Shoichi TANIFUJI, Research Fellow

Akinori ITO, Associate Professor*
Hideyuki HASEGAWA, Associate Professor*• Information Storage
Systems
Hiroaki MURAOKA, Professor

69

Masakazu KAWASHITA Associate Professor*
Shuichi SAKAMOTO, Assistant Professor
Fumitaka SAITO, Technical Official

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 70

Takuma OKAMOTO, Research Fellow

Katsuhiro UENO, Assistant Professor

Maori KOBAYASHI, Research Fellow

Akimasa MORIHATA, Assistant Professor

Wataru TERAMOTO, Research Fellow
Cui Lie ZHENG, Research Fellow
Daegee KANG, Research Fellow• Visual Cognition and
Systems• Computing Information
TheoryYoshihito TOYAMA, Professor
Hiroki SHIZUYA, Professor*

Satoshi SHIOIRI, Professor

Ayumi,SHINOHARA, Professor*

Makoto YOSHIZAWA, Professor*

Shinichiro OMACHI, Professor*

Ichiro KURIKI, Associate Professor

Takahito AOTO, Associate Professor

Noriyasu HOMMA, Associate professor*

Masao SAKAI, Associate Professor*

Kazumichi MATSUMIYA, Assistant Professor

Kentaro KIKUCHI, Assistant Professor

Kazuya MATSUBARA, Research Fellow• Interdisciplinary Field forInformatics• Communication Network
Systems
Tetsuo KINOSHITA, Professor
Hiroumi SAITO, Professor*
Hideaki SONE, Professor*

Akihito YOSHIDA, Research Fellow

Takuo SUGANUMA, Associate Professor

Shuzo KATO, Professor

Eiki ADACHI, Professor■Research Facilities
Laboratory for Nanoelectronics
and Spintronics
Director ： Junichi MUROTA, Professor
Sadao TSUCHIDA, Technical Official

Kaoru TAMADA, Professor• Ubiquitous Communications
System• Environmental-Adaptive
Information and Communication
Engineering

Ryutaro SASAKI, Technical Official

Rumi TOKUNAGA, Assistant Professor
Mitsuharu OGIYA, Research Fellow

Sponsored Division

Takaaki MIZUKI, Associate Professor*
Satoshi UTSUMI, Research Fellow

Toshiyasu MEGURO, Research Fellow• Atomically Controlled
Processing
Junichi MUROTA, Professor
Michitaka KAMEYAMA, Professor*
Shigetoshi SUGAWA, Professor*
Masao SAKURABA, Associate Professor
Masanori HARIYAMA, Associate Professor*• Information Contents

Kunio SAWAYA, Professor*

Yoshifumi KITAMURA, Professor

Hiroyuki NAKASE, Associate Professor

Nei KATO, Professor*

Qiang CHEN, Associate Professor*

Terumasa AOKI, Associate Professor

Xiaohong JIANG, Associate Professor*

Toru ABE, Associate Professor*• Semiconductor
Spintronics
Hideo OHNO, Professor
Migaku TAKAHASHI, Professor*
Masashi SAHASHI, Professor*

Hirokazu SAWADA, Assistant Professor

Yuzo OHNO, Associate Professor• Multimodal Computing（Visitor Section）• Information Social Structure（Visitor Section）

Fumihiro MATSUKURA, Associate Professor
Masakiyo TSUNODA, Associate Professor*

Tatsuya HIRAHARA, Visiting Professor

Hiroshi MATSUOKA, Visiting Professor

Masaaki DOI, Associate Professor*

Ryuichi NISHIMURA, Visiting Associate Professor

Masafumi YANO, Visiting Professor

Shin SAITO, Associate Professor*

Norio SHIRATORI, Visiting Professor

Keita OHTANI, Assistant Professor

Susumu KAWAKAMI, Visiting Professor

Shunichiro MATSUZAKA, Research Fellow

Systems & Software Division• Software Construction

Takana KAHO, Visiting Associate Professor
Debasish CHAKRABORTY, Visiting Associate Professor
Hideyuki TAKAHASHI, Research Fellow• Nano-Molecular Devices
Michio NIWANO, Professor

Atsushi OHORI, Professor

Rikizo HATAKEYAMA, Professor*

Naoki KOBAYASHI, Professor*

Tatsuo YOSHINOBU, Professor*

Eijiro SUMII, Associate Professor*

Kengo KINOSHITA, Professor*

70

2010‐2011(e)32〜63P̲欧文 平成 22/09/22 16:30 ページ 71

Yasuo KIMURA, Associate Professor

Naofumi HOMMA, Associate Professor*

Tetsuo KINOSHITA, Professor*

Toshiro KANEKO, Associate Professor*

Atsushi MATSUMOTO, Assistant Professor

Gen KITAGATA, Associate Professor

Ayumi HIRANO, Associate Professor*

Masanori NATSUI, Assistant Professor

Kazuto SASAI, Assistant Professor

Nobuyuki SATO, Assistant Professor

Naoya ONIZAWA, Research Fellow

Toshiaki OSADA, Research Fellow

Yuki AONUMA, Assistant Professor• Nano-Spin Memory
Yasuo ANDO, Professor*
Tetsuo ENDOH, Professor*
Tetsu TANAKA,Professor*

Research Center for 21st Century
Information Technology
Director ： Hiroaki MURAOKA, Professor• Project Planning Division
Makoto FURUNISHI, Visiting Professor

Laboratory for Brainware Systems
Director ： Koji NAKAJIMA, Professor• Real-World Computing
Koji NAKAJIMA, Professor*
Hidetoshi MATSUKI, Professor*• Technology Development
Division▲ Mobile Wireless Technology Group
Kazuo TSUBOUCHI, Visiting Professor
Tadashi TAKAGI, Visiting Professor▲ Storage Technology Group

Akio ISHIGURO, Professor*

Kazuhisa FUJIMOTO, Professor

Fumihiro SATO, Associate Professor*

Hajime AOI, Visiting Professor

Yoshinari MAKINO, Assistant Professor

Yoshihisa NAKAMURA, Visiting Professor

Kazuhiro SAKAMOTO, Assistant Professor

Koki TAKANASHI, Professor*
Osamu KITAKAMI, Professor*• Intelligent NanoIntegration System

Director ： Yoichi UEHARA, Professor
Fumitaka SAITO, Technical Official• Machine Shop Division

Shoji IKEDA, Associate Professor
Mikihiko OOGANE, Associate Professor*■ Fundamental Technology
CenterTamotsu SUENAGA, Technical Officail
Keisuke SATO, Technical Official
Kento ABE, Technical Official
Hiroshi WATANABE, Technical Official
Munetomo SUGAWARA, Technical Official
Ryuji YONEZAWA, Technical Official• Evaluation Division
Koichi SHOJI, Technical Official
Maho ABE, Technical Official
Yuji KONNO, Technical Official
Sadao TSUCHIDA, Technical Official
Shigeto AGATSUMA, Technical Official
Yasuo AGATSUMA, Technical Official

Takehito SHIMATSU, Associate Professor
Kiyoshi YAMAKAWA, Visiting Associate Professor• Process Division

Koji NAKAJIMA, Professor

Satoshi OKAMOTO, Associate Professor*

Fumitaka SAITO, Technical Official

Masayuki KAWAMATA, Professor*

Nobuaki KIKUCHI, Assistant Professor*

Katsumi SAGAE, Technical Official

Shigeo SATO, Associate Professor
Masahide ABE, Associate Professor*
Takeshi ONOMI, Assistant Professor• Microarchitecture

Ryutaro SASAKI, Technical Official■Management Office for
Safety and HealthManager ： Michio NIWANO, Professor

Shoichi MASUI, Professor

Deputy Manager ： Yoichi UEHARA, Professor

Illani Mohd NAWI, Research Fellow

Nobuyuki SATO, Assistant Professor• New Paradigm VLSI
SystemTakahiro HANYU, Professor
Osamu ICHINOKURA, Professor*
Takafumi AOKI, Professor*
Kenji NAKAMURA, Associate Professor*■ Common Research
Facilities• Flexible Information
System Research Center
Director ： Yôiti SUZUKI, Professor
Yoshihito TOYAMA, Professor*

71

Choichi TAKYU, Technical Official• Software Technology
Division
Fumitaka SAITO, Technical Official*Joint Appointment

2010‐2011(e)表紙BC̲2009‐2010(e)表紙BC 平成 22/09/22 16:20 ページ 3▼▼

2010‐2011(J)表紙AD̲AD 平成 22/09/22 16:19 ページ 3

Research Institute of Electrical Communication, Tohoku University 2010/2011

Research Institute of Electrical Communication
2‑1‑1 Katahira, Aoba‑ku, Sendai 980‑8577, JAPAN TEL（022）
217‑5420 FAX（022）
217‑5426
http://www.riec.tohoku.ac.jp/

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