2023 ■ OUTLINE

Mathematical, Physical, Electronic Department of Mathematics｜
and Information Sciences
AlgebraResearch Themes*Representation Theory, Algebraic Lie Theory*Number Theory, Arithmetic of Automorphic Form

Prof. ISHIKAWA Masao

Assoc. Prof. SUZUKI Takeshi

Prof. TERAI Naoki

Assoc. Prof. ITO Atsushi■ Research Themes
Combinatorial Commutative Algebra■ Research Themes
Combinatorial Commutative Algebra■ Research Themes
representation theory/combinatorics/Lie theory/
integrable systems■ Research Themes
Algebraic Geometry

Asst. Prof. ISHIKAWA Yoshihiro■ Research Themes
automorphic forms/Hodge theory/zeta integral/relative
representations/ covering groups

Geometry
Geometry is the study of figures, which are technicallycalled manifolds.

Differential geometry is the field of the precise study of the shapeof manifolds, using cues such as curvature and the behaviourof geodesics of (Riemannian) manifolds. Here geodesics are
generalisations of straight lines in Euclidean space. On the other

hand, topology is the field of the study of topological properties ofmanifolds by mapping algebraic invariants onto them.

The basic algebraic invariants, for instance, are fundamental groups,
homotopy groups, homology groups and cohomology groups.

Prof. KONDO Kei■ Research Themes
Global Riemannian
geometry (especially geodesic theory)/Nonsmooth analysis/Exotic structures/Minimal
submanifolds from aspects of PDEs/Origami

Prof. JINZENJI Masao■ Research Themes
Geometry/Mathematical Physics/ Fundamentals of Condensed
Matter Physics

Prof. TORII Takeshi■ Research Themes
Algebraic Topology/Homotopy Theory

Assoc. Prof. MONDEN Naoyuki■ Research Themes
mapping class group/ 4 -dimensional
topology

GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

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Analysis
We study various problems concerning differential equations, probability theory,functional
analysis, dynamical systems, and statistics from the point of analysis.

Prof. OSHITA Yoshihito

Assoc. Prof. UEHARA Takato■ Research Themes
Nonlinear PDE■ Research Themes
complex analysis/dynamical system

Mathematical Analysis
Research Area "Mathematical Analysis" is devoted to theory on partial differential equations,
theory of probability, functional analysis, dynamical systems and statistics.

For theory on partial differential equations, we study multi-dimensional traveling fronts appearing inreaction-diffusion models in physics, chemistry and biology. For theory of probability, we study stochastic
partial differential equations and their discrete models.

Prof. TANIGUCHI Masaharu■ Research Themes
partial differential equations/propagation
phenomena in reaction-diffusion systems

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GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

2023 ■ OUTLINE

Mathematical, Physical, Electronic
and Information Sciences｜Department of Physics

Quantum Structural Physics in Correlated MatterIn recent years, it is known that topological insulators,
topological semimetals, etc. undergo large physical property changes
in small electric and magnetic fields, related to the even-oddity of wave
functions and bands. However, its creation requires control of the Fermi
surface, control of spin-orbit interaction, and control of space and time
reversibility. We create and study pure topological materials by means ofquantum structural physics.

Prof. NOGAMI Yoshio■ Research Themes
quantum structural physics/
topological insulators

Assoc. Prof.
KONDO Ryusuke■ Research Themes
quantum structural physics/
topological insulators

Physics in Advanced Functional Materials
Novel magnetism and superconductivity inmolecular materials.

Development of superconductor and magnetism in molecularmaterials, layered compounds and van der Waals compounds.

Prof. IKEDA Naoshi■ Research Themes
Solid state physics/
Magnetism/Superconductivity

Assoc. Prof.
KAMBE Takashi■ Research Themes
Solid state physics/
Magnetism/Superconductivity

Extreme Quantum Physics
We are creating new research fields, e.g. innovative
quantum optics using the nucleus, and a coherent quantum
beam based on a novel principle and so on, aiming at future
development of both fundamental and applied science.

Prof.
YOSHIMURA Koji

■ Research Themes
Nuclear physics/Lowenergy particle physics/
Atomic physics

Assoc. Prof.
YOSHIMI Akihiro■ Research Themes
Nuclear physics/ Lowenergy particle physics/
Atomic physics

GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

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Low Temperature Condensed Matter Physics
We use nuclear magnetic resonance (NMR)
technique to study various quantum physicalphenomena at low temperatures. In particular,
we search for spin-triplet, topologicalsuperconductivity, and are interested inunderstanding the mechanism of superconductivity
in various classes of materials including copperoxides, iron pnictides, heavy fermion compounds, non-centrocymmetric materials.
One of our current projects is on topological superconductors, whose surface states can be used for quantum
computing. Here, the term "topological" means that the wave function describing superconductivity has a non-zero
topological invariant, just as a donut where the number of hole is invariant against deformation.

Prof.
ZHENG Guo-qing

Assoc. Prof.
KAWASAKI Shinji

Asst. Prof.
MATANO Kazuaki■ Research Themes
topological superconductivity/spin-triplet superconductor/NMR■ Research Themes
topological superconductivity/spin-triplet superconductor/NMR■ Research Themes
topological superconductivity/spin-triplet superconductor/NMR

Physics of Solid Surfaces and Interfaces
Functionalities of solid materials are studied from theviewpoint of electronic states. Experimental studies ofelectronic states lead to elucidating the origin and/or
mechanism of the functionalities and also give the strategy
to improve the functionalities in materials. Advanced
electron spectroscopy techniques are employed to conduct
the research for electronic states in materials in detail.
Researches of self-organized nanostructured thin films and development of new thin films with functionalities such as
superconductivity and metal-insulator transition are performed. The physical properties of the films are investigated fromthe viewpoint of electronic states.

Prof. YOKOYA Takayoshi■ Research Themes
Electronic states/
photoemission spectroscopy/Elucidationof the mechanism of functionality

Assoc. Prof. MURAOKA Yuji
■ Research ThemesThin films/Surface/Interface

Astroparticle Physics
We are studying the advanced analysis methods to measure the
CMB polarization to search for the
imprint of the cosmic inflation. We

are also developing superconducting

detectors to study neutrinos from the sun.

Prof. ISHINO Hirokazu■ Research Themes
Cosmic Microwave Background/LiteBIRD/
Superconducting Detectors

4Asst. Prof.
Stever Samantha Lynn

■ Research Themes
Cosmic Microwave Background/LiteBIRD/
Superconducting Detectors

GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

2023 ■ OUTLINE

Quantum Many-Body Physics
We are interested in modern
problems of solid state theory andcomputational materials science. We
focus on connecting the microscopic
structure of materials to experimental
measurements. The objective is tounderstand complex properties likemagnetism and superconductivity and to
discover and design new materials. Our
method development aims at more precise
and realistic description of materials and at
making more physical quantities accessible
by increasing computational efficiency.

Prof. ICHIOKA Masanori

Prof. JESCHKE Harald Olaf

■ Research Themes
magnetism/superconductivity/solid statephysics/computational physics■ Research Themes
magnetism/superconductivity/solid statephysics/computational physics

Assoc. Prof. ADACHI Hiroto

Assoc. Prof. OTSUKI Junya■ Research Themes
magnetism/superconductivity/solid statephysics/computational physics■ Research Themes
magnetism/superconductivity/solid statephysics/computational physics

GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

5

Quantum Physics in Correlated MatterSpace-time chaos and nonequilibrium patternformation in magnetic materials.Spin-wave Relaxation.

Prof. MINO Michinobu■ Research Themes
Spin-Wave/Magnetic domain
structure/Chaos

Physics of Condensed Matter
Quantum statistical mechanics mediated formalism and its application to the solid state physics

are the main concern. The one- and two-body green functions are evaluated numerically, aiming to grasp
the elementary excitation as well as the AC susceptibilities. The importance of interaction is emphasized.
The non-equilibrium statistical mechanics is also under the scope in terms of the AC transport properties.

Asst. Prof.
NISHIYAMA Yoshihiro■ Research Themes
spectral properties/
quantum spin system

High Energy Physics
Particle physics is the study of the properties of
elementary particles, which are the smallest units that makeup matter, and the forces (interactions) that connect them.
Particle physics is also closely connected to understanding
the universe. Our laboratory promotes experimental
research through accelerator experiments and astrophysicalobservations. In particular, we focus on particles called
neutrinos and are trying to elucidate their properties andthe mysteries of the universe through a variety of
Assoc. Prof.
experiments.

KOSHIO Yusuke

Photo courtesy of J-PARC Center and Kamioka Observatory, ICRR, University of Tokyo

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GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY■ Research Themes
Astro-particle physics/nuclear
physics/neutrino physics/
supernova

2023 ■ OUTLINE

Materials Physics in Extreme Environments
The properties of material under extreme conditions, suchas under high pressure and high magnetic field, exhibit unconventional
and anomalous characteristics. Our research group is dedicated toinvestigating the unexplored states of matter under these extreme
conditions. In order to accomplish this objective, we are actively
developing the advanced experimental techniques. We are seeking theoriginal research using the advanced experiment techniques.

Prof. KOBAYASHI Tatsuo

Assoc. Prof. ARAKI Shingo■ Research Themes
solid state physics/magnetism/superconductivity■ Research Themes
solid state physics/magnetism/superconductivity

Assit. Prof. AKIBA Kazuto■ Research Themes
solid state physics/magnetism/superconductivity

Physics of Quantum Universe
Based on knowledge and techniques developed in various fields of physics, such as particlenuclear physics, astrophysics, and atomic, molecular, optical physics, experimental research leading to theconstruction of physics models beyond the new laws of fundamental physics: the particle standard theory.
We are mainly carrying out table-top experiments that do not use high-energy accelerators. We havedeveloped various key technologies such as high-performancelasers, high-performance detectors, targets with high quantum
coherence, and molecular cooling techniques, and are
conducting research using experimental apparatuses that are
unique in the world.

Assoc. Prof. UETAKE Satoshi■ Research Themes
Atomic physics/Quantum optics/Particle
physics

GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

7

Mathematical, Physical, Electronic
and Information Sciences｜

Department of Mathematicaland Data Sciences

Mathematical Science for Data Engineering
We develop mathematical theories (topology, dynamicalsystems, etc.), methods, and software for data analysis andutilization and apply them to various fields such as materials
science, geology, meteorology, and life science.

Prof. OBAYASHI Ippei■ Research Themes
Topological data analysis/
persistent homology/
applied mathematics

Senior Assist. Prof.
NAKAI Kengo■ Research Themes
applied mathematics/
machine learning

Applied Mathematics
The main research theme of our group is developing

and explicating fundamental theories for mathematical models

via applications of commutative algebra and probability theory tocomputational algebra and stochastic models.

Prof. HAYASAKA Futoshi■ Research Themes
algebra/commutative algebra

Assoc. Prof.
KAWAMOTO Yosuke■ Research Themes
probability theory/analysis/randommatrices/infinite particle systems

Mathematical Analysis of Models
This group deals differential equations, which are often
mathematical models describing natural phenomena. We investigate
mathematical methods for analysing the equations and also theapplications of equations. The equations involved are various types, andthe methods used include analysis,
dynamical systems theory, numericalanalysis, and so on.

Prof. SASAKI Toru
■ Research Themes
differential equations/applied analysis/
mathematical biology

8

Assoc. Prof. OBUSE Kiori■ Research Themes
nonlinear dynamics/fluid dynamics

GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

2023 ■ OUTLINE

Numerical Analysis of Flow Phenomena
Computational and data science of multiscale and multi-physics complex flow phenomenausing supercomputers; information reduction,
extraction, and visualization of big data of complex
flow phenomena by mathematical and scientificmethods; collaborative research to understandcomplex flow phenomena in various fields suchas astronomy, meteorology, environment, andengineering.

Assoc. Prof. SEKIMOTO Atsushi

Prof. ISHIHARA Takashi■ Research Themes
Fluid dynamics/Turbulence physics/
Numerical simulation/Computational
Science/Data Science■ Research Themes
Thermal fluid/turbulence/dynamicalsystems/numerical simulation/transport phenomena/adjoint inverse
analysis/data-driven computation

Statistical Data Analysis
We conduct education and research on statistical theories and methodologies required toanalyze data on various issues in the environmental and life sciences, natural and social sciences.

Statistical science is a fundamental technology of data analysis and machine learning, and provides themost effective means of presenting an objective view based on scientific evidence. We wish to contributeto solving various issues, with making use of drastically improving
computer ability.

Prof.
SAKAMOTO Wataru■ Research Themes
Computational statistics/
biostatistics/statisticalmodel selection

Senior Assist. Prof.
TAKAGISHI Mariko■ Research Themes
Multivariate data
analysis/psychometrics

Spatio-Temporal Statistics
The detection of problems such as the occurrence of infectious diseases or the mappingof natural disaster hazards is crucial and fundamental. While there are powerful and useful tools likegeographical information systems (GISs) available, determining the location of space-time clusters for large
quantities of spatial data or extensive time series poses significant challenges. This study aims to establish
methods for identifying disease clusters or contaminant
clusters, commonly referred to as hotspots, in various
types of spatio-temporal data, as well as develop
corresponding software.

Prof. ISHIOKA Fumio■ Research Themes
Spatial statistics/Computational statistics/
Echelon analysis/Spatial clusters/Spatial
scan statistics/Spatial epidemiology

GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

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Computational Statistics
There are various types of data in data analysis. It is

important to analyze obtained multivariate data, text data, picture

data, and other data types. We apply and develop computational
statistical approaches and methods to understand these data.

Prof. IIZUKA Masaya■ Research Themes
categorical data analysis/Software/
Principal component Analysis/IR

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Senior Assist. Prof.
OHKUBO Yusaku■ Research ThemesLife sciences/Ecology and environmental
studies/Ecostatistics

GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

2023 ■ OUTLINE

Mathematical, Physical, Electronic
and Information Sciences

Department of｜Computer
Science

Computer Engineering
We aim to establish new technologies of hardware and software forcomputer infrastructures. In computer hardware, we conduct interdisciplinary
research on cutting-edge optical technologies (e.g., hologram memory and laser)
and integrated circuits (VLSI) which act as the brain of computers. In computer
software, we focus on the following research topics: construction methods of
new operating systems (OS) and security technologies for OS, mobile devices,and IoT; technologies for supporting group collaboration with computers andnetworks; and interdisciplinary issues in artificial intelligence and computing
technologies.

Prof. YAMAUCHI Toshihiro■ Research Themes
Operating System/System Software/
Computer Security/System Security/
IoT Security

Prof. WATANABE Minoru■ Research Themes
Information and communication/computer
system/reconfigurable system/FPGA/
Optically reconfigurable gate array

Asst. Prof. KOBAYASHI Satoru■ Research Themes
Network management/
System operation

Asst. Prof. WATANABE Nobuya■ Research Themes
Programming Language Processor/
Parallel Processing/Hardware Design
System/Computer Architecture/
Reconfigurable System/FPGA/Hardware
Design Automation/Language Processor

Assoc. Prof. Lin Donghui■ Research Themes
Multiagent Systems/Services
Computing/Intelligent Computing

Assoc. Prof. NOMURA Yoshinari■ Research Themes
Operating system/groupware

Theory of Programming and Artificial Intelligence
We conduct a wide range of research on basic

theory and applications of computational intelligence,

mathematical informatics, and software engineering.

Specifically, we promote research on machine learningalgorithms, mathematical programming, distributed algorithms,
software measurement and analytics, mining software

repositories, human behavior analysis, human-machineinteraction, computer vision and so on.

Prof. TAKAHASHI Norikazu■ Research Themes
information and mathematicalengineering

Assoc. Prof. Zeynep Yücel■ Research Themes
human behavior analysis

Prof. MONDEN Akito

Asst. Prof. MIGITA Tsuyoshi■ Research Themes
empirical software engineering■ Research Themes
computer vision

GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

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Pattern Information Processing
The research area of Pattern Information Processing
involves the study of fundamental theories and practicalapplications related to pattern recognition and understanding. It
mainly focuses on visual information processing and language
information processing. The research targets also include theextraction of distinctive patterns from data and the study ofmethods for analyzing, recognizing, and utilizing these patterns. In
the field of pattern information science, we utilize techniques andalgorithms from machine learning, statistics, artificial intelligence,and data mining to design appropriate feature representations andconstruct identification models for images and texts.

Assoc. Prof. TAKEUCHI Koichi■ Research Themes
natural language processing/deep neuralnetwork model/large language model

Intelligent Design
In the division of Intelligent Design, our research focuses ondeveloping technologies that efficiently search for desired
information and discover valuable insights from the vast amount of Big
Data available on the Web, utilizing artificial intelligence and other related
approaches. Additionally, we explore digital libraries that enable users toseamlessly navigate between the virtual world of cyberspace, connectedby the Internet, and the physical reality. Our research also includes
stream delivery technologies for multimedia information, including audio
and video, with a particular emphasis on the integration of Internet
broadcasting and data communications.

Prof. OHTA Manabu■ Research Themes
Web Information Retrieval/
Web Mining/Digital Library

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Assoc. Prof.
GOTOH Yusuke■ Research Themes
Streaming Delivery in
Broadcasting
Environments/Spatial Computing

GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

Asst. Prof.
UWANO Fumito■ Research Themes
Reinforcement Learning/
Distributed Artificial
Intelligence2023 ■ OUTLINE

Mathematical, Physical, Electronic Department of Information｜and Communication Systems
and Information Sciences
Mobile Communications
This laboratory is working on research on new
wireless technologies with the aim of realizing next generation
mobile radio communication systems beyond 5 G. Our major
research challenges include OFDM/OFDMA and MIMO channel
signal transmission to realize ultra high-speed and large-capacity
systems with more than 10 Gbps, radio wave propagation andlink budget technologies for seamless and flexible service area
implementation. Furthermore, we are researching LED visible
light communication as a new communication system, andwireless signal separation/demodulation technology aiming at
the ultimate effective use of frequencies.

Prof. UEHARA Kazuhiro

Assoc. Prof. TOMISATO Shigeru■ Research Themes
Mobile communication engineering■ Research Themes
Mobile communication engineering

Multimedia Radio Systems
Our laboratory aims to 5 G/ 6 G wireless communication systems which canrealize the high-speed wireless communication as anytime, anywhere, anyone"
Our research topics are most on the MIMO wireless communication system,
MIMO relay, Overload MIMO system, IoT relay, smart antenna technology as
ESPAR, LCX and RIS, wireless communication
with machine learning, IoT devices localization.
We are also developing the wireless technology
for smart sensing and communication, cognitive
radio, learning technique and prediction methods
for wireless environment.

Prof. DENNO Satoshi

Asst. Prof. HOU Yafei■ Research Themes
Wireless communication/Signal
processing/ 5 G, 6 G wireless system/
MIMO system/relay communications■ Research Themes
5G,6G wireless system/IoT localization/
smart antenna technology/machinelearning for wireless system

Distributed System Design
We study practical and useful research topics in

the Information Communication Technology (ICT) ito achieve
our mission of the human resource developments for next

generations. Currently, 33 international students from fivecountries are studying in our laboratory.

Prof. FUNABIKI Nobuo■ Research Themes
programming learning/WLAN/multimedia/IoT
application/distributed computing system

GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

13

Optical and Electromagnetic Waves
Optical and Electromagnetic Waves (OEW) Lab
studies research topics that aim to improve electrical, electronic,
and telecommunication systems in speed and reliability. Our
research is related to specific design technology to intentionallycontrol and reduce unintentional electromagnetic waves, orelectromagnetic noise, generated by electrical, electronic, andtelecommunication equipment. Such design technology is called
EMC design. EMC is short for electromagnetic compatibility
and means the ability of an equipment or system to function
satisfactorily in its electromagnetic environment without
Prof. TOYOTA Yoshitaka
introducing intolerable disturbance to anything in thatenvironment. EMC consists of two aspects, EMI (electromagnetic■ Research Themesinterference) and EMS (electromagnetic susceptibility). The
Electromagnetic Compatibility
former is the ability that a system cannot interfere with other(EMC)/Hardware Security/Safe
systems or subsystems. In contrast, the latter is the one thatand Security
system must continue to operate correctly in the presence ofinterference from others or transient.

Information Security
Consequently, securing and safeguarding communication and service
delivery has become a critical issue.
In our research laboratory, we are committed to the research and development ofcryptography, random number generation, and related technologies. Our goal is toensure that internet-connected devices, such as medical devices, automobiles, andsmart home appliances, can operate securely and safely in this changing scenario.
By applying encryption and random number techniques, we aim to provide reliable
solutions that safeguard sensitive data and prevent security threats. Our research
explores enhancing encryption algorithms, producing high-quality random numbers,
and designing secure communication protocols. Through these endeavors, we aspire tocreate a dependable environment where individuals and organizations can confidently
use internet-connected devices without jeopardizing their security and privacy.

Prof. NOGAMI Yasuyuki■ Research Themes
Information security/Discrete
mathematics/Modern cryptography/
Post-quantum cryptography/
Homomorphic encryption/IoT/AIrelated security/Secure protocols

Asst. Prof. KODERA Yuuta■ Research Themes
Information security/Discrete
mathematics/Modern cryptography/
Post-quantum cryptography/
Homomorphic encryption/IoT/AIrelated security/Secure protocols

Network Systems
In the after-corona era, a remote world(decentralized society) is expected to arrive, and social andeconomic activities that do not require face-to-face interaction
will take root as the new normal. In this research field, we focus
on the Internet, which is becoming increasingly important as an
ICT infrastructure supporting the new normal. We design the
future Internet by predicting the services that will be neededon the Internet in the future and identifying the possibilities andlimitations of various newly created technologies.

Assoc. Prof. FUKUSHIMA Yukinobu■ Research Themes
Information network/Network virtualization/
Edge computing/Knowledge-defined networking

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GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

2023 ■ OUTLINE

Mathematical, Physical, Electronic Department of Electrical and｜Electronic Engineering
and Information Sciences
Applied Superconductivity Engineering
Superconducting technology is expected to contribute to our society by
improving the efficiency of energy systems derived from the high current densityof superconductors and creating new technologies through the application of highmagnetic fields. In our laboratory, we have been developing high-efficiency and low-loss
superconducting electrical devices using low-temperature superconducting wires andhigh-temperature superconductors (bulk and thin-film wires). We have also developed
compact and/or high-field superconducting magnets for medical and/or fusion
applications.

Prof. KIM Seokbeom■ Research Themes
Superconductivity/
Energy applications/
Medical and fusion applications/Wireless power transmission/
Electromagnetic field analysis

Assoc. Prof.
UEDA Hiroshi■ Research Themes
Superconductivity/
Energy applications/Medical andfusion applications/Wireless powertransmission/Electromagnetic field
analysisAsst. Prof.
INOUE Ryouta■ Research Themes
Superconductivity/
Energy applications/Medical andfusion applications/Wireless powertransmission/Electromagnetic field
analysisElectric Power Conversion System Engineering
The following are examples of specific research topics.
*SR motor drive method that achieves both low torque ripple and low
input current ripple*High power density three-phase inverters using GaN-HEMTs for EV
applications*Stable resonant inductive coupling wireless power transfer system
independent of manufacturing variation and magnetic interference*High frequency resonant inverter for plasma generator applications*Ultra-thin and low-loss coils for IH cooking heaters*Rectifier-integrated printed-circuit-board winding structures

Prof.HIRAKI Eiji
■ Research Themes
Power Electronics

Assoc. Prof.
UMETANI Kazuhiro■ Research Themes
Power Electronics

Asst. Prof.
ISHIHARA Masataka■ Research Themes
Power Electronics

Motor System Engineering
Currently, motors are used in a variety of locations fromindustry and transportation to the home, and more than half of all electricity
generated in Japan is consumed by motors. Therefore, the improvement ofmotor efficiency is very effective in reducing energy-related carbon dioxide
emissions, and is a very important research topic from the perspectiveof countermeasures against global warming and the depletion of energy
resources. Accordingly, we are conducting research on "high performance
motors" and "bearingless motors and magnetic bearings utilizing magnetic
levitation" with the aim of "reducing the environmental burden caused by
motors.

Prof. TAKEMOTO Masatsugu

Asst. Prof. TSUNATA Ren■ Research Themes
electrical machines/generators/electricalmachinery/motor drive/power electronics■ Research Themes
electrical machines/generators/electricalmachinery/motor drive/power electronics

GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

15

Optoelectronic and Electromagnetic Wave Engineering
Research on wireless power transfer
systems and devices using electromagnetic
and acoustic waves, measurement systems
for antenna system characteristics formobile communications beyond 5 G, network
construction of IoT devices and sensor devices,
medical devices using light, and sensor systems
using optical fiber, etc.

Prof. FUKANO Hideki

Assoc. Prof. FUJIMORI Kazuhiro■ Research Themes
wireless power transfer/electromagnetic
field measurement/IoT network/opticalfiber sensor■ Research Themes
wireless power transfer/electromagnetic
field measurement/IoT network/optical fiber
sensorElectronic Control Engineering
Control system optimization and its

application are under research to develop theories
and techniques, aiming to enhance electronic control
technology widely employed in the current society.

Assoc. Prof. IMAI Jun■ Research Themes
control engineering/distributed
parameter systems/robust
control

Microwave Circuits
The microwave circuits laboratory principally
conducts research on microwave circuits such as oscillators,
microwave passive circuits such as power dividers/combiners, and other electromagnetic circuits for applications
such as mobile communications, satellite broadcasting/communications, and wireless electric power transmissions.

Assoc. Prof. SANAGI Minoru■ Research Themes
electrical and electronic engineering/
electronic devices and equipment/
microwave engineering

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GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

2023 ■ OUTLINE

Multiscale Device Design
Research themes:i) D e s i g n a n d a p p l i c a t i o n o f n o v e l a r t i f i c i a l m a t e r i a l s"metamaterials" that enable one to control light, electromagnetic,
acoustic, and elastic waves as needed.
ii) N anomaterials/devices design by first-principles and largescale molecular simulation methods.
iii) Q uantum-classical hybrid computation methods, machinelearning, and artificial intelligence for designing the novel
functionality of materials/devices.
In particular, we are currently focusing on "topological phononics"
that is, as an analogy of physics on topological insulators/
superconductors, a novel approach to the design of extremely
efficient acoustic/
Prof. TSURUTA Kenjielastic wave devices■ Research Themes
operating at ultra
applied physics/nano-micro
high-frequency (GHz)sciences/nanomaterials
regimes.
engineering/electronicmaterials engineering

Nanodevice and Materials Engineering
Semiconductors are used not only in computers, butalso in various other places, such as solar cells, thermoelectric
conversion devices and other power generation elements,and sensors that sense temperature and light. In addition tosilicon, which is widely used today, our research targets new
semiconductor materials with mechanical flexibility and excellent
electrical properties, such as carbon nanotubes and semiconductive
nanosheets, and we are conducting a series of research fromstructural control and design at the nanoscale (one billionth ofa meter) to practical scale. We also perform research on defectproperties and engineering in semiconducting materials.

Prof. HAYASHI YasuhikoAsst. Prof. SUZUKI Hiroo■ Research Themes
Semiconductor/Nanocarbons/Twodimensional materials/Flexible devices/
Crystal defect and engineering■ Research Themes
Semiconductor/Nanocarbons/Twodimensional materials/Flexible devices/
Crystal defect and engineering

Assoc. Prof. YAMASHITA
Yoshifumi

Asst. Prof. NISHIKAWA Takeshi■ Research Themes
Semiconductor/Nanocarbons/Twodimensional materials/Flexible devices/
Crystal defect and engineering■ Research Themes
Semiconductor/Nanocarbons/Twodimensional materials/Flexible devices/
Crystal defect and engineering

GRADUATE SCHOOL OF ENVIRONMENTAL, LIFE, NATURAL SCIENCE AND TECHNOLOGY, OKAYAMA UNIVERSITY

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