Research Strengths

At YNU, some 600 researchers conduct research in various fields and create and apply knowledge as an “international focal point of practical scholarship” that can contribute to the welfare of people in Japan and beyond, as well as to the sustainable development of society.
In addition to individual research, to promote collaborative research between researchers at YNU and at other institutions inside and outside Japan, 8 units have been formed at the Institute of Advanced Sciences and 27 research projects have been recognized by the Research Initiative and Promotion Organization as YNU Research Centers. Through this framework, focus is being placed on research in fields with high societal demand, academic fields, fields that are highly ranked socially or academically, and pioneering fields.
Furthermore, YNU has signed academic exchange agreements with over 140 universities around the world and about 300 researchers are accepted to YNU from universities outside of Japan every year.

1Dominant fields

YNU is in the top ten in Japan in the following fields for total number of selected projects of “Grants-in-Aid for Scientific Research (KAKENHI)”※1 between 2013 and 2017.※2

※1 “Grants-in-Aid for Scientific Research (KAKENHI)” are competitive research funds that are intended to significantly develop all scientific research (research based on the free ideas of the researcher), from basic to applied research in all fields, ranging from the humanities and the social sciences to the natural sciences. The grants provide financial support for creative and pioneering research after peer review.

※2 Limited only to fields with a total number of newly selected projects are five or more.

Research Field Rank Number of newly selected projects Total allocated budget (in thousand yen)
Environmental engineering and reduction of environmental burden 3 6.0 16,100
Environmental risk control and evaluation 3 5.0 38,000
Economic theory 7 8.5 8,750
Accounting 5 12.0 14,600
Economic history 7 7.0 13,700
Materials / Mechanics of materials 10 9.0 32,700
Dynamics / Control 5 7.0 18,800
Power engineering / Power conversion / Electric machinery 3 15.0 99,300
Aerospace engineering 8 7.0 15,000
Naval and maritime engineering 9 8.0 15,600
Reference
Japan Society for the Promotion of Science (JSPS)

2Distinguished research

At YNU, the following fields and programs were selected for “Grant-in-Aid for Scientific Research (S)” in the past five years.

※ ”Grants-in-Aid for Scientific Research (S)” are research projects in the area of basic research, which is the primary type of research project for “Grants-in-Aid for Scientific Research”, that are set to significantly develop creative and pioneering research even further based on past research findings by having the research period required to conduct stable research and securing adequate research funds needed for carrying out the research. In principle, it consists of large-scale research funds ranging from about 50 million yen to 200 million yen per project. Only about 90 new projects are selected in all of Japan each year.

Research Field Name Position and Affiliation of the time Program / Contents
Power engineering / Power conversion / Electric machinery Atsuo Kawamura Professor, Faculty of Engineering Realization of a sustainable green society through 99.9% efficient electric power conversion
Optical engineering, Photon science Toshihiko Baba Professor, Faculty of Engineering High-performance nanolaser biosensor with ion-sensitivity
Nanostructural physics Hideo Kosaka Professor, Faculty of Engineering Research for quantum media conversion in diamond nano quantum systems
Polymer / Textile materials Masayoshi Watanabe Professor, Faculty of Engineering Role of liquid for controlling autonomy of soft materials containing ionic liquids
Electron device / Electronic equipment Nobuyuki Yoshikawa Professor, Faculty of Engineering Study on adiabatic single-flux-quantum circuits operating in the thermodynamic energy limit
Design and evaluation of sustainable and environmental conscious system Koichi Fujie Professor, Faculty of Environment and Information Sciences Development of a system dynamic model of plantation to evaluate the sustainable production of crops by appropriate recycle of biomass residues
Details
List of Notable Projects Selected for Competitive Research Funds (in Japanese)

3Research papers that impact the world

According to the “Web of Science”※1, papers of YNU published in the past five years have been highly cited around the world in the following fields.

※1 “Web of Science” is one of the world's leading scientific citation databases. With more than 12,500 journals from around the world dating back to 1900 (as of December 2015), it enables one to carry out cross-discipline searches on influential scientific journals and important publications and assess citation patterns.

Research Field “Web of Science” Documents CNCI※2 Times Cited % Documents in Top 1% % Documents in Top 10%
Optics 135 1.69 570 3.70% 11.11%
Instruments & Instrumentation 60 1.67 220 1.67% 5.00%
Environmental Sciences 126 1.37 17,00 1.59% 7.94%
Physics, Multidisciplinary 59 1.19 347 1.69% 6.78%
Ecology 73 1.17 589 1.37% 8.22%
Physics, Atomic, Molecular & Chemical 57 1.10 500 3.51% 14.04%
Engineering, Mechanical 160 1.04 451 0.63% 7.50%
Mechanics 93 0.94 410 0.00% 6.45%
Chemistry, Multidisciplinary 173 0.94 2,008 0.58% 6.94%
Computer Science, Theory & Methods 82 0.90 105 0.00% 7.32%

※2 “CNCI” stands for Category Normalized Citation Impact. Fields with a CNCI of 1 or higher are considered higher than the global average.

4Recipients of YNU Outstanding Researcher Awards

To raise the motivation to carry out research in each researcher, raise the university's research capacity, and foster outstanding researchers who will be responsible for the future's scientific research, YNU established the “Yokohama National University Outstanding Researcher Awards” in AY 2011 to honor researchers who have achieved outstanding research results. The following are the award recipients for AY 2018.

Award Name Position and Affiliation of the time Research Field
Best Research Award Manabu Kuroki Professor, Faculty of Engineering Statistical science
Technological Progress Award Hironori Fudeyasu Associate Professor, College of Education Meteorology/ Physical oceanography/ Hydrology
Young Researcher Award Masayuki Suzuki Associate Professor, College of Education Educational psychology
Izuru Kawamura Associate Professor, Faulty of Engineering Biophysics/ Structural biochemistry
Keiichi Kitamura Associate Professor, Faculty of Engineering Aerospace engineering/ Fluid engineering
Yuichiro Izato Assistant Professor, Faculty of Environment and Information Sciences Social systems engineering/ Safety system/ Aerospace engineering
List of past recipients
www.ripo.ynu.ac.jp/topics/award/ (in Japanese)

5Notable award recipients

YNU faculty have received the following notable awards in the past five years.

Award Awarding Body Recipient Affiliation of the time
Japan Academy Prize Japan Academy Yozo Fujino Institute of Advanced Sciences
67th Yokohama Cultural Award Culture and Arts Encouragement Award City of Yokohama Teppei Fujiwara Faculty of Urban Innovation
AY2017 Industrial Standardization Award, Minister of Economy, Trade and Industry Award Ministry of Economy, Trade, and Industry Katsutoshi Komeya Professor Emeritus
AY 2017 Foreign Minister's Award Ministry of Foreign Affairs Tara Cannon International Strategy Organization
AY 2017 Science and Technology Prize for Research, Minister of Education, Culture, Sports, Science and Technology Award Ministry of Education, Culture, Sports, Science and Technology Masayoshi Watanabe Faculty of Engineering
AY 2016 Industry-Academia-Government Collaboration Contributor Award, Minister of Internal Affairs and Communications Award Cabinet Office Katsunari Yoshioka Faculty of Environment and Information Sciences
AY 2016 Science and Technology Prize for Research, Minister of Education, Culture, Sports, Science and Technology Award Ministry of Education, Culture, Sports, Science and Technology Toshihiko Baba Faculty of Engineering
AY 2016 (65th) Kanagawa Culture Award Kanagawa Prefecture Ryue Nishizawa Faculty of Urban Innovation
52nd Minister of Economy, Trade and Industry Award for Contributors to Product Safety, Ministry of Economy Trade and Industry Tsutomu Oyama Faculty of Engineering
55th Economist Award Mainichi Shimbun Weekly Economist Editorial Team Eiichi Tomiura Faculty of International Social Sciences
FOST Social Contribution Award Foundation for the Fusion of Science and Technology Hiroaki Shirai Faculty of International Social Sciences
Congress Commendation / Decoration, Paraguay-Japan Friendship Commission, Congress of the Republic of Paraguay Congress of the Republic of Paraguay Yoko Fujikake Faculty of Urban Innovation
AY 2015 Young Scientists' Prize of the Commendation for Science and Technology Ministry of Education, Culture, Sports, Science and Technology Junji Fukuda Faculty of Engineering
AY 2014 Prime Minister's Award (Commendations for Contributors to Consumer Support) Cabinet Office Takao Nishimura Facylty of Education
AY 2014 Young Scientists' Prize of the Commendation for Science and Technology Ministry of Education, Culture, Sports, Science and Technology Toshimitsu Kanai Faculty of Engineering
KDDI Foundation Awards KDDI Foundation Hideki Ochiai Faculty of Engineering

Eight researchers

This section highlights eight notable individuals from among the researchers at YNU who are active in a variety of fields. Their research field, main achievements and publications, and current research topic are introduced here as well. You can also see detailed information about other researchers by looking at the specialist field or performing a keyword search in the “YNU Researchers (Database)”. If you are considering studying at YNU as a graduate student or research student, use this information to find a supervisor.

Yukari Hashimoto

01

Yukari Hashimoto

Professor
College of Education / Graduate School of Education

Japanese Language Education

Research field

From a cognitive linguistics perspective, I am clarifying the similarities and differences among adults and children whose second language is Japanese and children whose first language is Japanese in order to identify universal language acquisition processes and the internal and external factors that affect those processes. I apply the second language acquisition mechanisms identified in actual education and use them to develop teaching materials. The number of foreign national children living in Japan has been increasing in recent years, and various issues are arising. By pursuing theory and practice, I am examining forms of support and education for foreign national children to achieve a multilingual, multicultural society. I am also considering the development of the global workforce and studying what qualities and abilities teachers require.

Major Achievements and Publications

  • 2012 Received the First Yoshinori Sasaki Award from the Japanese Association of Second Language Acquisition
  • 2009 Won the 27th Research Grant (currently called Research Incentive Prize) from the Izuru Shinmura Memorial Foundation
  • 2019 Co-authored Learner-corpus and the Study of Japanese Language Education published by Kuroshio Publishers
  • 2018 Authored An Analysis of First and Second Language Acquisition Stages from a Usage Based Model Perspective published by Kazamashobo

Current Research Topics

Second language acquisition, education for foreign children, teacher training, and cultivation of globally-competitive talents

dr-yukari-hashimoto.jimdo.com

Naoko Soma

02

Naoko Soma

Associate Professor
Faculty of International Social Sciences

Social Policy

Research field

As the aging of the population and declining of the birth rate advance concurrently, the number of households faced with child-raising and nursing care at the same time (double care households) is expected to rise. For double care households, to provide child care support is to provide nursing care support and vice versa. In anticipation of the future era of double care, the framework for measures to address the declining birth rate and measures to address the aging of the population must be combined into an all-encompassing framework, and we must consider building autonomous, inclusive, and multigenerational community care systems (networks) for the double care era and consider family-related policies. To achieve this, I am collaborating with researchers in East Asia to conduct policy-related research based on fact-finding surveys.

Major Achievements and Publications

  • “Comparative framework for care regime analysis in East Asia,” Journal of Comparative Social Welfare, 27(2), p111-121, 2011 (with J Yamashita and R.KH. Chan)
  • “Teenage Pregnancy and Its Support System in Korea: Transition from 'Abortion or Adoption' to 'Childbirth and Childrearing',” International Journal of Public and Private Healthcare Management and Economics, 2(4), p14-40, 2012 (with J. Park, S.H. Baek and A. Morita)
  • “Re-examining Family-Centred Care Regimes in East Asia,” in Izuhara M. (ed.) Handbook on East Asian Social Policy, Cheltenham: Edward Elgar, 2013 (with J. Yamashita and R. Chan)

Current Research Topics

International comparative research of family policies and the issue of double responsibilities of elderly care and childcare

double-care.com/project/

Kiyotaka Sato

03

Kiyotaka Sato

Professor
Faculty of International Social Sciences

International Economics

Research field

We publish a new database “YNU-Global Input-Output Table” to investigate the global economic linkage and the viability of Asian economic integration. We also publish a unique database “industry-specific real effective exchange rate” to analyze the impact of exchange rate volatility on trade and the exchange risk management of Japanese firms.

Major Achievements and Publications

  • Managing Currency Risk: How Japanese Firms Choose Invoicing Currency, Cheltenham, UK: Edward Elgar, 2018 (with T. Ito, S. Koibuchi and J. Shimizu)
  • “Regional or Global Shock? A Global VAR Analysis of Asian Economic and Financial Integration,” North American Journal of Economics and Finance, 46, pp.232-248, 2018 (with S.L. Ong).
  • “Exchange Rate Exposure and Risk Management: The Case of Japanese Exporting Firms,” Journal of the Japanese and International Economies, 41, pp.17-29, 2016 (with T. Ito, S. Koibuchi and J. Shimizu).

Current Research Topics

Exchange risk management of Japanese firms, selection of quotation currency for trade, exchange-rate pass-through, selection of optimal exchange rate regime, and Asian economic integration

er-web.jmk.ynu.ac.jp/html/SATO_Kiyotaka/en.html

Tomoyuki Shimono

04

Tomoyuki Shimono

Associate Professor
Faculty of Engineering

Robotics

Research field

As aging society has progressed, it has strongly been expected to develop human-support robotic technology which can contribute not only to the creation of new industrial values, but also to the improvement of QoL (quality of life) for the realization of safe and secure society. In this research area, the research and development of medical support robots, rehabilitation support robots, and life support robots have been advanced, on the basis of fundamental motion control technology for flexible interaction among human, robot, and environment. In addition, new sensors and actuators, which are oriented to applications for human support robot, have been developed. Our research activities are aimed at providing society with novel robot technology to softly and physically assist people in collaboration with local medical professionals, physical therapists, occupational therapists, nurses, and others.

Major Achievements and Publications

  • “Mathematical Modeling of Semicircular Linear Motor Based on Vector Potential With Landen's Transformation,” IEEE Transactions on Industrial Electronics, Vol. 55, No. 1, p437-447, 2019 (with H. Asai, Y. Fujimoto, T. Mizoguchi, and K. Ohnishi)
  • “Estimation of Antagonistic Output Ratios Based on Force Distribution at End Effector of Limb,” IEEE Transactions on Industrial Electronics, Vol. 64, No. 2, p1783-1792, 2017 (with N. Tojo, T. Kaneko, T. Tsuji, and T. Mizoguchi)
  • “A Nonlinear Adaptive Compliance Controller for Rehabilitation,” IEEJ Journal of Industry Applications, Vol. 5, No. 2, p123-131, 2016 (with D. Pilastro and R. Oboe)

Current Research Topics

Applied technologies of haptic feedback control on medical and rehabilitation robots, and development of new motors for medical and rehabilitation robots

www.tsl.ynu.ac.jp

Tomoharu Nagao

05

Tomoharu Nagao

Professor
Faculty of Environment and Information Sciences

Artificial Intelligence

Research field

There are various challenges facing deep learning and other forms of machine learning that are currently in the spotlight. For example, generated processes become a black box and people become unable to understand the processing work being carried out, and massive amounts of learning data must be provided in order for a computer to be able to learn. Our research group is carrying out theoretical and methodological research and development on evolutionary machine learning as the next-generation of AI that can resolve these problems. As the manager of the YNU Research Center for AI, I am also working on equipping society with AI through collaborative research with many companies and striving to develop YNU’s AI research.

Major Achievements and Publications

  • 2008 Established a venture company, Machine Intelligence, Inc. from YNU using a new technology in evolutionary image processing and began to serve as its CTO
  • 2016 Established and led the research hub of AI at YNU
  • Conducted joint research with over 120 companies in total, with ongoing projects with over 10 companies at any given time
  • Published over 200 papers on artificial intelligence

Current Research Topics

Evolutionary computation, evolutionary image processing, machine learning, KANSEI information processing, evolutionary neural network, financial engineering, etc.

nagao-lab.ynu.ac.jp

Katsunari Yoshioka

06

Katsunari Yoshioka

Associate Professor
Faculty of Environment and Information Sciences

Cyber Security

Research field

Our research focuses on the observation, analysis, and countermeasures against cyberattacks on various information systems. In recent years, we have been investigating cyberattacks in the internet of things (IoT), pointing out vulnerabilities and malware infection of various internet-connected devices. We focus on a broad range of products from home network to critical infrastructures, sharing our analytical findings with public research organizations, network operators, manufacturers, and system developers.

Major Achievements and Publications

  • 2017 Received the Information Security Culture Award
  • 2016 Recognized by the Minister of Internal Affairs and Communication for contribution in the industrial-academia-government partnership
  • 2009 Received MEXT Science and Technology Award for Excellent Research
  • “Cleaning Up the Internet of Evil Things: Real-Wolrd Evidence on ISP and Consumer Efforts to Remove Mirai,” The Network and Distributed System Security Symposium (NDSS 2019), 2019 (with O. Cetin, C. Ganan, L. Altena, D. Inoue, T. Kasama, K. Tamiya, Y. Tie, and M. van Eeten)

Current Research Topics

IoT Security, Targeted Cyber Attack Measures, Malware Response, Measures against Denial of Service Attack, Web Security, Smartphone Security

yoshioka.ynu.ac.jp

Akira Hosoda

07

Akira Hosoda

Professor
Faculty of Urban Innovation

Infrastructure Maintenance

Research field

To extend the life of infrastructure that supports safe and secure living and economic activities, infrastructural elements need to be built carefully and maintained to ensure their lasting performance over the long term. It is exactly the same as watching your health to ensure you can live a long and active life. The social infrastructure network, which includes roads, railways, water, sewerage, and so on, is just as critical for the survival of our society as the vascular network is to humans. I pursue technological development to ensure the long life of concrete structures that account for the majority of our social infrastructure, implementation of technologies in society, and consulting services for the government and private companies across Japan.

Major Achievements and Publications

  • 2018 Japan Concrete Institute Award
  • 2015 Received YNU Invention Award for surface water absorption testing
  • 2017 Authored New Concrete Revolution published by Nikkei BP
  • “Collapse Analysis of Utatsu Ohashi Bridge Damaged by Tohuku Tsunami Using Applied Element Method”, Journal of Advanced Concrete Technology, Vol.12, p388-402, 2014.10 (with H. Salem, S. Mohssen and K. Kosa)

Current Research Topics

Enhancement of the durability of concrete structures for roads to support post-disaster reconstruction in Tohoku and Kumamoto, and development of surface water absorption testing devices for concrete structures

ynuconcretelaboratory.web.fc2.com

Ryue Nishizawa

08

Ryue Nishizawa

Professor
Faculty of Urban Innovation

Architectural Design

Research field

I consider architecture, not as single buildings, but as a part of the local environment and society. Architecture exists not only in contemporary society but also in history. It belongs not only to the people who are alive today but to people of the past and the future. Architecture and the city must be considered as a part of history.

At Y-GSA, the adoption of a studio-system of education generates mutual communication and inspiration among students and faculty members.

Y-GSA aims to be not only a place for the education of students and the training of architects but a source of ideas that contribute to the broader discussion, consideration, research and creation of architecture.

Major Achievements and Publications

  • 1998, 2006, and 2012 Received Award for Best Design from the Architectural Institute of Japan
  • 2004 Received Gold Lion in the 9th International Architecture Exhibition at Venice Biennale
  • 2005 Received the 46th Mainichi Art Award
  • 2010 Received the Pritzker Architecture Prize
  • 2012 Received the Murano Togo Prize

Current Research Topics

Research on architectural models that dynamically express values by thinking of the lifestyle of the people and the way society evolves in the new era

www.y-gsa.jp/studio/nishizawa/

Admissions Information

To learn more about the entrance examinations for the undergraduate and graduate programs (including research students), international student exchange (JOY Program), and summer program, please check the Admissions Information.