Research Institute of Electrical Communication Tohoku University


Taking advantage of the wide range of research expertise in the institute, ad-hoc research groups are formed outside of the formal organizational structure to investigate challenging exploratory topics and needs-based, cutting-edge subjects.

Group of multimodal attention

Satoshi Shioiri (Group Leader)
Yôiti Suzuki
Shuichi Sakamoto
Kazumichi Matsumiya


Attention spreads over a limited range in the visual field as the spotlight metaphor suggests and similar attention effect is investigated for auditory and tactile perception. We investigate spatial spread of unimodal and multimodal attention using steady state visual/auditory/tactile evoked potential through electroencephalogram (EEG) measurements in order to model attention modulation for unimodal and multimodal perception.

Next-Generation Nitride Electron Device Research Group

Tetsuya Suemitsu (Group Leader)
Takashi Matsuoka
Tomoyuki Tanikawa
Takeshi Kimura


Gallium-nitride-based transistors have potentials to save the power consumption in many application fields such as high-speed telecommunication and automotive systems. Combining the advanced material technology developed in IMR* and the device technology developed in RIEC, this group explores break-through technology to realize high-frequency and high-power transistors that helps save energy in many kind of electronics systems.

* Institute for Materials Research


Yotta Informatics Research Group

Hiroaki Muraoka(Group Leader)
Jiro Gyoba
Yôiti Suzuki
Satoshi Shioiri
Noriharu Suematsu
Takahiro Hanyu
Simon Greaves
Toshihiko Hirooka
Tetsuo Endoh
Shin-ichiro Omachi
Shin Saito
Mitsuyuki Nakao
Nei Kato
Kentaro Inui
Kengo Kinoshita
Naofumi Homma
Hiroaki Kobayashi
Fumihiro Matsukura
Tatsuo Yoshinobu
Yoshiyasu Sakura
Masatoshi Koizumi
Saku Hara
Kyoko Haga
Yuko Murakami
Nobuhiko Terui
Yasumasa Matsuda
Tsukasa Ishigaki
Mariko Nihei


Created world-wide information is rapidly growing. It is projected to reach to a yotta-byte scale information in 2030. In order to manage the gigantic information, new criteria of quality, property, and value have to be taken into account for the next generation ICT technology. Interdisciplinary research by the experts from humanities and social science, and ICT engineering is carried out.


Cyber-Physical Security Research Group

Naofumi Homma (Group Leader)
Takuo Suganuma
Takahiro Hanyu
Atsushi Ohori


For the next-generation information and communication infrastructures such as IoT, M2M, and CPS, we aim to developing information security technologies to ensure security and reliability at the level of vast and diverse information sources (i.e., embedded devices such as sensor terminals) in a vertically integrated manner from the viewpoints of software constitutive theory, system security, hardware security, circuit architecture and next-generation micro processor.


Brainmorphic Nano-Devices and Circuits Research Group

Yoshihiko Horio (Group Leader)
Shigeo Sato
Hisanao Akima
Hideo Ohno
Shunsuke Fukami
Takahiro Hanyu
Masanori Natsui
Ayumi Hirano
Hideaki Yamamoto


Brain-inspired hardware systems have been actively developed recently.
However, a big break-through to the true brainmorphic system has not been reached yet.
This research group aims at development and implementation of novel brainmorphic computational hardware that reproduces the bio-physics and dynamics in the brain directly through dynamics and physics of nano-devices and ultra-low-power integrated circuits based on the latest physiological knowledge.

Research Group for Advanced Wireless IoT

Noriharu Suematsu (Group Leader)
Takahiro Hanyu
Kazushi Ishiyama
Naofumi Homma
Nei Kato


The aim of this research group is to propose a new concept and to show the technical feasibility of advanced wireless IoT. Since the advanced wireless IoT should handle a large number of terminals in a limited area, the interference between the small cells becomes a very big problem. To solve this problem, we propose a novel millimeter-wave/ sub-millimeter-wave wireless IoT system and will discuss the related technical issues to realize this concept.