The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Feature Frontiers of audiology: Quest to find effective solutions to support people with hearing loss

Research Highlights
 Radar for environmental monitoring: New algorithms for high speed and low cost 3D imaging
 Astronomical spectroscopy in a laboratory: Direct and accurate measurements of electron densities of plasmas
 Laser science: Innovative solid state lasers with Yb3+-doped CaF2 - LaF3 ceramic gain media
 Two dimensional materials: Advanced molybdenum selenide near infrared phototransistors
 Nanophotonics: Integrating nanocavities into optical fibers with femtosecond laser ablation

Topics Convergence of science and art: Three dimensional dynamics of ferrofluid sculptures

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Frontiers of audiology: Quest to find effective solutions to support people withhearing loss
Takuji Koike,
Professor, Department of Mechanical and Intelligent Systems Engineering,
The University of Electro-Communications, Tokyo.
Takuji Koike is collaborating with medical doctors in Japan to clarify the origins of auditory problems as well
as developing devices to support people suffering from hearing loss. "We are focusing on three main areas,"says Koike. "Gaining insights into the mechanisms governing hearing disorders for the development ofeffective treatments; measuring the response of fetuses to sound; and developing hearing aids that are
implanted into the bone behind the ear."Specific projects
Modelling of auditory systems
Effective modelling is important to clarify the mechanisms of hearing disorders for the development
treatments that cannot be studied by clinical research.
Koike and colleagues have devised numerical middle ear models and cochlear models for active motilities ofthe outer hair cells. Simulations are used to analyze vibrations of the lymph liquid and basilar membrane in
the cochlea and clarify transmission mechanisms in the peripheral auditory systems. The simulations wereused for clinical applications where the mechanisms of hearing losses caused by otosclerosis , perilymphatic
fistula, and endolymphatic hydrops [1,2,3].
Measurement of auditory evoked response in fetus
One in eight hundred people in Japan suffer from congenital hearing loss that can lead to impairment oflanguage development and handicap for clear conversation. In this research, Koike is working with medical
schools in Japan to measure variation in the heart rate and brain waves of fetuses induced by vibratory
stimulation applied to maternal abdominal wall. Initial experiments showed positive reactions fromapproximately 90% of the fetuses who were confirmed to have normal hearing after birth [4]. The set up
consists of a piezoelectric vibrator to produce the sound and Doppler ultrasound device to detect changes in
the heart rate.

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Set up for auditory evoked response in fetus

Response measured with Doppler device

Development of implantable bone conduction hearing aids
Koike's group has developed prototype bone-conduction hearing aid using Giant Magnetostrictive Material(GMM) vibrators. Improvements in the design of the vibrator and method of transdermal signal transmission
yielded a device with higher efficiency compared to the existing bone-conduction hearing aids. "We haveobtained a European patent for the basic specifications and operating function of the hearing aid and areworking with a company to develop practical hearing aids," says Koike.

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Prototype implantable bone conduction hearing aid.

Development of instruments to assist auditory surgeons during operations
Instruments for measuring ossicular mobility has been developed, and the ossicular mobility in patients has
been measured during tympanoplasty. Some prototypes were built and tested in collaboration with medical
equipment makers and medical institutions. This work was supported by Saitama Leading Edge Project(Medical Innovation).
"In the future, we will continue to develop ideas and instruments to improve the quality of life of people withauditory system problems," says Koike.

Ossicular mobility measuring device and system

References and further information
The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

[1] Takuji Koike, Hiroshi Wada, Toshimitsu Kobayashi, Modeling of the human middle ear using thefinite-element. Method, J. Acoust. Soc. Am. 111 (3), (2002).
[2] Takuji Koike, et al, Effects of a perilymphatic fistula on the passive vibration response of the basilar
membrane. Hear Res. 283(1-2), 117-125 (2012)[3] Sinyoung Lee and Takuji Koike, Simulation of the Basilar Membrane Vibration of Endolymphatichydrops, Procedia IUTAM 24 ( 2017 ) 64 - 71.
doi: 10.1016/j.piutam.2017.08.043[4] Rina Matsuoka, et. al, Piezoelectric vibrator-stimulated potential and heart rate accelerations detected fromthe fetus, International Journal of Pediatric Otorhinolaryngology, 101 (2017) 204e210.
http://dx.doi.org/10.1016/j.ijporl.2017.05.007[5] Koike Laboratory
http://www.bio.mce.uec.ac.jp/

Professor: Takuji Koike (Dr. Eng. from Tohoku University, 1996/03)
Current research areas: Biomedical engineering, Biomaterials science and engineering,
Dynamics, Control.
Current research subjects: Development of electromagnetic hearing aid, Measurement ofossicular mobility, Modeling of auditory system.
Personal website: http://www.bio.mce.uec.ac.jp/

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Radar for environmental monitoring: New algorithms for high speed and low
cost 3D imaging
Ultrawideband millimeter-wave radar devices are promising as high precision sensors to monitor
environments where vision is hindered due to clouds and fog for applications including automobile collision
avoidance systems. Importantly, during the identification of objects under such circumstances, raw data fromthe sensors must be rapidly and accurately processed into three dimensional images by so-called 'conversion
algorithms'.
However, it is difficult to deal with the human body—which causes situations with rich interference—with
conventional algorithms in terms of accuracy and computational cost.
Here, Shouhei Kidera at the University of Electro-Communications, Tokyo, and colleagues, have built on theirprevious research on the range points migration (RPM) method, and incorporates the Doppler velocity
component with the RPM image for accurately generating 3D images with lower computational costs.
The researchers carried out numerical analysis assuming the multiple input multiple output (MIMO) radarwith 140 GHz ultra wideband signals. Their method assumed a human body target, which consists of anaggregation of multiple ellipsoidal objects with different velocities.
The key aspect of the approach described by Kidara and his colleagues for improving the accuracy is thatduring conversion they select only a suitable set of so-called surrounding RPs (SubRPs) from all targetedrange points (RPs), using Doppler based discrimination, which contributes a further target recognition issue.
According to the researchers, further improvements in this method can be expected, "by introducing more
efficient algorithm to search the optimal intersection points..... while the present algorithm relies on full searchof possible intersection points."

Reference
Yuta Sasaki, Fang Shang, Shouhei Kidera, Tetsuo Kirimoto, Kenshi Saho, and Toru Sato "Three-Dimensional
Imaging Method Incorporating Range Points Migration and Doppler Velocity Estimation for UWBMillimeter-Wave Radar". IEEE Geoscience And Remote Sensing Letters, Published online (8th December2016); doi: 10.1109/LGRS.2016.2628909

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Model used for testing the new algorithm.

Scattering center points in noiseless case: (a) obtained by the original RPM method, and (b) obtainedby the proposed method (b).

Professor: Tetsuo Kirimoto (Ph. D. from Osaka University 1995/08)
Current research areas: Radar Signal Processing
Current research subjects: Imaging Radar, High Resolution Radar
Personal website: http://www.radar.ee.uec.ac.jp/english/

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Associate Professor: Shouhei Kidera, (Ph. D. from Kyoto University 2007/09)
Current research areas: Microwave imaging / Signal processing
Current research subjects: Microwave mammography, Non-destructive testing, Human body
imaging with radar
Personal website: http://www.ems.cei.uec.ac.jp/kidera/index_e.html

Assistant Professor: Fang SHANG (Ph.D. from The University of Tokyo 2014/09)
Current research areas: Synthetic aperture radar data interpretation
Current research subjects: Vegetation classification using polarimetric synthetic aperture Radar
data
Personal website: http://www.irs.lab.uec.ac.jp/member/shangfang/

Graduate Student: Yuta Sasaki (Master degree from UEC 2016/03)
Current research areas: Signal processing
Current research subjects: Human body imaging with radar

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Astronomical spectroscopy in a laboratory: Direct and accurate measurementsof electron densities of plasmas
Isaac Newton's discovery in the mid-1600s that white light consists of a 'spectrum' of rainbow colors, and thenin the early 1800s Joseph von Fraunhofer's observation of lines in the solar spectrum laid the foundations formodern day spectroscopy—the workhorse of astronomers analyzing the chemical compositions of plasmas
that form the basis of stars and galaxies.
Recently, astronomers are particularly interested in accurate measurements of the electron density of thermal
plasmas to determine the evolution of the universe. The electron density is determined by measuring therelative intensities of two characteristic spectral lines that fluctuate with electron density. However, in practice
it is challenging to obtain accurate density dependent ratio measurements with ground based instruments,
which is critical for verifying space based observations.
Here, Erina Shimizu and Safdar Ali at the University of Electro-Communications, Tokyo, and colleagues,
report on experimental measurements of electron density dependent lines ratios of highly charged Fe X, XI
and XII—ions for which there are discrepancies between astrophysical observations and theoreticalsimulations.
The measurements were made using a flat field grazing incidence spectrometer in the extreme ultraviolet(EUV) spectral wavelength range 16 to 20 nm. The researchers state: "Rather than estimating electron densityfrom the theoretical electron beam width as reported previously...we obtained it experimentally by directly
imaging electron beam and observing spatial distribution of the trapped ions."
Notably, the research yielded good agreement between the experimental and theoretical
calculations—findings attributed to the determining electron densities experimentally with a combination of apin hole camera and visible spectrometer.

References
Erina Shimizu, Safdar Ali, Takashi Tsuda, Hiroyuki A. Sakaue, Daiji Kato, Izumi Murakami, Hirohisa Hara,
Tetsuya Watanabe, and Nobuyuki Nakamura. "Measurements of density dependent intensity ratios of extreme
ultraviolet line emission from Fe X, XI, and XII" Astronomy and Astrophysics, Published online (25th March2017); doi: 10.1051/0004-6361/201630199
https://www.aanda.org/articles/aa/abs/2017/05/aa30199-16/aa30199-16.html

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Schematic drawing of the experimental system used in this study.

Associate Professor: Nobuyuki, NAKAMURA (Ph.D. from The University ofElectro-Communications 1996/03)
Current research areas: Atomic/Molecular/Quantum electronics
Current research subjects: Physics of highly charged ions, Highly charged ions, Atomic
structure, Surface modification with highly charged ions, Highly charged ions, Surface
modification
Personal website: http://yebisu.ils.uec.ac.jp/nakamura/index.html

Former Graduate Student: Erina, SHIMIZU (Master of Engineering from the University ofElectro-Communications 2016/03)
Former research subject at the graduate school of the UEC: Laboratory measurements ofhighly charged iron ion spectra relevant to astrophysical plasmas

Former JSPS postdoctoral fellow: Safdar, ALI (Ph.D. from Stockholm University 2012/05)
Former research subject at Institute for Laser Science of UEC: Measurements of extreme
ultraviolet spectra of highly charged ions

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Laser science: Innovative solid state lasers with Yb3+-doped CaF2 - LaF3
ceramic gain media
Polycrystalline ceramic materials offer advantages including robustness over conventional glass as gain media
for solid state lasers: devices that find many applications such as laser processing and medical surgery.
Recently, there has been renewed interest in fluoride ceramics lasers for ultrashort pulse laser
oscillators/amplifiers. Here, Shotaro Kitajima at the University of Electro-Communications, Tokyo, Hitoshi
Ishizawa at Nikon Corporation, and colleagues report on the development of the first Yb3+-doped CaF2-LaF3
ceramic laser with a maximum power output of 4.36 W and slope efficiency of 69.5%.
Kitajima and colleagues fabricated CaF2 ceramics doped with two rare earth ions of La and Yb from 1 at. %La3+, 1 at. % Yb3+ to 6 at. % La3+, 6 at. % Yb3+. The doping was carried out using a wet process to mix CaF2
with two kinds rare-earth fluorides with average diameters of 200 nm. This was followed by sintering first
between 750°-900° in air followed by the hot isostatic pressing method between 700°-1000° in an inert
atmosphere.
Notably, the random orientation of the axes of grains in ceramics improves their mechanical robustness, which
is one of the main motivations for producing CaF2 ceramics for gain media.
The findings described in this paper show that it may be possible to significantly improve the physicalproperties of Yb: CaF2-ceramic materials for high performance laser gain media.

Reference
Shotaro Kitajima, Kentaro Yamakodo, Akira Shirakawa, Ken-Ichi Ueda, Yoshinobu Ezura and Hitoshi
Ishizawa "Yb3+-doped CaF2-LaF3 ceramics laser" Optics Letters, Published online (31st March 2017); doi:
10.1364/OL.42.001724
https://doi.org/10.1364/OL.42.001724

Yb:CaF2-LaF3 ceramic samples with different combinations of doping concentrations.

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Associate Professor: Akira Shirakawa(Ph. D. from University of Tokyo 1999/03)
Current research areas: Laser Engineering / Quantum Electronics
Current research subjects: High power solid-state / fiber lasers, Coherent beam combining
Personal website: http://www.ils.uec.ac.jp/~shirakawa_lab/

PhD Student: Shotaro Kitajima
Current research areas: Laser Engineering
Current research subjects: Thin-disk ultrashort pulse laser, investigation of new laser materials
Personal website:
http://www.ils.uec.ac.jp/~shirakawa_lab/http://www.ils.uec.ac.jp/~shirakawa_lab/member.html#
phd

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Two dimensional materials: Advanced molybdenum selenide near infrared
phototransistors
Optical sensors operating in the near infrared (NIR) are important for applications in imaging, photodetectors,
and biological sensors. Notably, recent reports on the synthesis of high quality, large areas of graphene has
motivated researchers to search for other 2D materials with properties suitable for NIR devices.
Now, Abdelkader Abderrahmane and colleagues at the University of Electro-Communications, Tokyo incollaboration with researchers at Chosun University, Korea, describe the optoelectronics characteristics ofmolybdenum selenide (MoSe2) phototransistors for applications to photodetectors. The application of gate
voltages to the devices yielded a maximum photoresponsivity 238 A/W, an external quantum efficiency(EQE) of 37,745% under 785 nm light. The researchers state: "our device is one of the best high-performancenanoscale near-infrared photodetectors based on multilayered two-dimensional materials."
The devices were fabricated using few layered MoSe2 with a thickness of ~44 nm that was exfoliated fromnatural MoSe2 onto thermally oxidized silicon substrates with metallic strips acting as back gates. The
transistor channel width and length were 50 and 20 μm, and the charge mobility was be 5.1 cm2 /V/s.
Electrical measurements indicated that the devices operated in the so-called accumulation mode and with apinch off voltage of - 40V.
The combination of the 1.1 eV bandgap of MoSe2 and its high optical absorption compared to MoS2 is
expected to offer wide ranging applications in optoelectronics.

Reference
Pil Ju Ko, Abdelkader Abderrahmane, Nam-Hoon Kim and Adarsh Sandhu, "High-performance near-infrared
photodetector based on nano-layered MoSe2." Semiconductor Science and Technology. Published online(22nd May 2017)
doi: 10.1088/1361-6641/aa6819

Scanning electron microscopy image of the near-infrared photodetector based on few-layered MoSe2.

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Project Assistant Professor: Abdelkader Abderrahmane (Doctor of Engineering in Electricaland Electronic Information Engineering from Toyohashi University of Technology, 2014/09)
Current research areas: Magnetic control of micro and nanorobots, Development of electronic
nanodevices.
Current research subjects: Soft nanorobots, Electronic and optoelectronic devices,
Two-dimensional materials.

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Nanophotonics: Integrating nanocavities into optical fibers with femtosecond
laser ablation
Controlling and manipulating the interaction of light with nanostructures offers the promise of new andinnovative technological applications ranging from nanolasers and sensors to quantum computing. However,in spite of tremendous advances in nanotechnology that has enabled the fabrication of one and two
dimensional structures (such as photonic crystal cavities), efficiently integrating nanocrystal cavities withmodern optical fibers in communications networks is proving to be difficult.
Here, Kohzo Hakuta and colleagues at the University of Electro-Communications, Tokyo, report on therealization of one dimensional arrays of nanometer sized holes or 'nano-craters' on the surfaces of optical
nanofibers by simply irradiating them with a single pulse of ultrashort light from a femtosecond laser. Theseso called 'nanofiber based photonic crystal cavities' are expected to find new applications in nanophotonics
and quantum information science.
Specifically, the researchers used a laser with a 400 nm wavelength and 120 fs pulse width to ablate thousandsof 50 - 250 nm-diameter nanocraters with a periodicity of 350 nm over a 1 mm length in 450 - 550
nm-diameter nanofibers. Notably, in this procedure the nanofiber acts as a lens and focuses the incident laser
light onto its 'shadow side', and the use of only one pulse eliminates structural imperfections due tomechanical vibrations.
The resulting one dimensional photonic cavities exhibited strong broadband reflectance and high opticaltransmission. The researchers state: "The strong confinement of the field, both transverse and longitudinal, in
the nanofiber-based PhC cavities and the efficient integration to the fiber networks, may open new
possibilities for nanophotonic applications and quantum information science."

Reference
Kali Prasanna Nayak , Jameesh Keloth and Kohzo Hakuta. "Fabrication of 1-D Photonic Crystal Cavity on a
Nanofiber Using Femtosecond Laser-induced Ablation." Journal of Visualized Experiments, published online(25th February 2017)
doi:10.3791/55136
Video of the experiment: http://www.cpi.uec.ac.jp/researchActivities.html

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Scanning electron microscopy image of the resulting uniformity and dimensions of photonic crystals induced on
nanofibers using femtosecond laser-induced ablation.

Professor: Kohzo, Hakuta (Ph.D. from The University of Tokyo 1974)
Current research areas: Atomic/Molecular/Optical physics, Quantum Electronics, Quantum
Optics, Nanophotonics
Current research subjects: Optical Nanofibers for Quantum Photonics
Personal website: http://www.cpi.uec.ac.jp/index.html

Associate Professor: Kali Prasanna, Nayak (Ph.D. from The University ofElectro-Communications 2009)
Current research areas: Quantum Optics, Nanophotonics
Current research subjects: Interfacing single atoms/photons on optical nanofiber cavity

Present Doctor Course Student: Jameesh, Keloth (Master of Science from University ofHyderabad 2011)
Current research subjects: Developing optical nanofiber cavity for quantum photonics

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

Convergence of science and art: Three dimensional dynamics of ferrofluid
sculptures
Sachiko Kodama
Associate Professor
University of Electro-Communications, Tokyo.
Sachiko Kodama is an artist internationally recognized for her renderings unique and dynamic three
dimensional sculptures including "Protrude Flow" (2001), "Morpho Tower" (2006), and "Pulsar" (2008) bycontrolling the intricate interaction of magnetic field lines with solutions of dark and optically reflective
ferrofluids.
Sachiko has a bachelor's degree in physics. She decided that
she was more interested in art than physics for her doctorate.
"During my PhD program I studied digital art in the form of
3D computer graphics and holography," says Sachiko.
"However, I was interested in the interaction of light with real
3D materials. Holography did not offer this but ferrofluids
did. So after finding inspiration from work by Minako
Takeno on ferrofluids, I launched the "Protrude, Flow"project in 2000. The work from this collaboration wasProtrude, Flow 2001

exhibited at Siggraph 2001 Art Gallery.""Protrude, Flow" was an interactive exhibition where a computer was used to move ferrofluids into "organic
wild shapes". The exhibition used ferrofluids and six electromagnets, and the shapes of the ferrofluids wereaffected by the sounds generated by visitors in the exhibition room. The dynamic movements of theferrofluids were projected onto a large screen in the room in real time.
Link to video of "Protrude Flow"
https://www.youtube.com/watch?v=c4rLG5Aaie4
In contrast to the dynamic movement of ferrofluids in"Protrude, Flow", the "Pulsate" series was focused on using
the ferrofluid "as a place where thoughts mingled together".
The "Pulsate -Melting Time, Dissolving Time" exhibition was
set up in a large white room with a white dish containing
black ferrofluid placed at the center of a white table withsome chairs around it. The sounds of voices and footsteps ofMorpho Tower

visitors caused the fluid to 'pulsate' gently in synchronization
The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

with the sounds. For larger sounds, the fluid moved with larger amplitudes, and at a certain point the ferrofluid"erupted" into the air. An electromagnet placed under the table was used as the actuator.
The experience of creating these dynamic structures led Sachiko to test new ideas for producing even more
dynamic ferrofluid sculptures. Specifically, Sachiko experimented with electromagnets with pre-sculptured
iron cores. This set up was used for the creation of the "Breathing Chaos" (2004) and "Morpho Tower" (2006)
series. The important point is that the shapes and movement of "spikes" in the ferrofluid was controlled byvarying the current flowing through the electromagnet.
Links to videos of "Breathing Chaos" and "MorphoTower"
series.
Breathing Chaos:https://www.youtube.com/watch?v=AkiIt2OeQ_g
Morpho Tower:
https://www.youtube.com/watch?v=6eIcynuzg2M
Morpho Towers/Two Standing Spirals:
https://vimeo.com/78180852
Planet No.1

"A major goal is to create a human torso," explains Sachiko.
"This is very challenging because the ferrofluid must move upwards against gravity. I am also consideringcolored ferrofluids. So, still many avenues to explore."

Further information
1. October 2017: Exhibition in Kyoto
Sachiko Kodama - Éblouissan, 6 October - 25 November 2017, Seikado Gallery, Kyoto, Japan
http://sachikokodama.com/722-2/
2. http://sachikokodama.com/
3. Sachiko Kodama: Dynamic Ferrofluid Sculpture: Organic Shape-changing Art Forms,
CACM(Communications of the ACM), Volume 51, Issue 6, pp.79-81, June 2008.

Associate Professor: Sachiko Kodama (PhD in Art from University of Tsukuba, 2000/03)
Current research areas: New media art
Current research subjects: Interactive art studies using magnetic fluid, Art and information
technology,
Personal website: http://www.kodama.hc.uec.ac.jp/index-e.html

The University of Electro-Communications 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585© 2017 The University of Electro-Communications.

The University of Electro-Communications (UEC) in Tokyo
is a small, luminous university at the forefront of pure and applied sciences, engineering, andtechnology research. Its roots go back to the Technical Institute for Wireless Commutations,which was established in 1918 by the Wireless Association to train so-called wireless engineers
in maritime communications in response to the Titanic disaster in 1912. In 1949, the UEC wasestablished as a national university by the Japanese Ministry of Education, and moved in 1957
from Meguro to its current Chofu campus Tokyo.
With approximately 4,000 students and 350 faculty, UEC is regarded as a small university, butwith particular expertise in wireless communications, laser science, robotics, informatics, andmaterial science, to name just a few areas of research.
The UEC was selected for the Ministry of Education, Culture, Sports, Science and Technology (MEXT)
Program for Promoting the Enhancement of Research Universities as a result of its strengths inthree main areas: optics and photonics research, where we are number one for the numberof joint publications with foreign researchers; wireless communications, which reflects ourroots; and materials-based research, particularly on fuel cells.
International Public Relations
The University of Electro-Communications
1-5-1 Chofugaoka, Chofu, Tokyo 182-8585
E-mail : kokusai-k@office.uec.ac.jp
Website : http://www.uec.ac.jp/eng/

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182-8585 © 2017 The University of Electro-Communications.