Organization information

Board Executive Directors

Number of board directors

Conformity with Article No.10 of the Law on the Japan Atomic Energy Agency, An Independent Administrative Institution

  • President: 1
  • Vice President: 1
  • Executive Director: Up to 6
  • Auditor: 2

President

KOGUCHI Masanori

Duties:
Preside over JAEA's operations
Education:
March 1978 : Graduated from the School of Law, Hokkaido University
Professional history:
April 2022 : President, Japan Atomic Energy Agency
June 2020 : Counselor, Mitsubishi Heavy Industries, Ltd. (MHI)
June 2018 : Board Member, Executive Vice President, CFO (MHI)
April 2018 : Board Member, Executive Vice President, CFO, Director of the Office of Strategic Planning and Promotion (MHI)
June 2015 : Board Member, Managing Director, CFO, Director of the Office of Strategic Planning and Promotion (MHI)
April 2014 : Board Member, Operating Officer of the Office of Strategic Planning and Promotion (MHI)
April 2013 : Director of the General Accounting Division (MHI)
April 2008 : Director of The Funding Division (MHI)
April 1978 : Joined General Affairs Dept. of MHI
Tenure:
March 31, 2029

Executive Vice President

HAYASHI Takahiro

Duties:
  • Preside over the Agency's operations assisting the President
  • In charge of Tsuruga Head Office as Senior Director General
  • Oversee affairs relating to the functional enhancement of administrative departments
Education:
March 1992 : Graduated from School of Science and Engineering, Tokyo Institute of Technology
March 1990 : Graduated from Department of Applied Physics, Tokyo Institute of Technology
Professional history:
April 2025 : Executive Vice President, Japan Atomic Energy Agency (JAEA)
April 2024 : Executive Director, Japan Atomic Energy Agency (JAEA)
April 2022 : Deputy Director-General, Research and Development Bureau, Ministry of Education, Culture, Sports, Science and Technology (MEXT)
July 2021 : Director, Policy Division of the Minister's Secretariat, MEXT
August 2020 : Director, Yokohama Branch, RIKEN
January 2019 : Director, Research and Development Policy Division, MEXT
July 2017 : Director for Atomic Energy Bureau of Science, Technology, Innovation and Policy Cabinet Office
January 2016 : Director, Ocean and Earth Division, MEXT
Tenure:
March 31, 2028

Executive Director

NAGASATO Yoshihiko

Duties:
  • Oversee affairs relating to Safety and Nuclear Security Administration Head Office, and Decommissioning and Waste Managementr Domain
  • Supervise affairs relating to Nuclear Fuel Cycle Engineering Laboratories, Ningyo-toge site, Tono site, Horonobe site and Aomori site
Education:
March 1988 : Graduated from School of Science, Kyushu University
March 1986 : Graduated from Department of Chemistry, Faculty of Science, Kyushu University
Professional history:
April 2024 : Executive Director, Japan Atomic Energy Agency (JAEA)
April 2023 : Director General of Nuclear Fuel Cycle Engineering Laboratories, Sector of Nuclear Fuel, Decommissioning and Waste Management Technology Development, JAEA
April 2021 : Deputy Director General of Nuclear Fuel Cycle Engineering Laboratories, Sector of Nuclear Fuel, Decommissioning and Waste Management Technology Development, JAEA
April 2019 : Deputy Director General of TRP Decommissioning Center, Nuclear Fuel Cycle Engineering Laboratories, Sector of Nuclear Fuel, Decommissioning and Waste Management Technology Development, JAEA
April 2016 : Director of Technology Development Department, Tokai Reprocessing Technology Development Center, Nuclear Fuel Cycle Engineering Laboratories, Sector of Decommissioning and Radioactive Waste Management, JAEA
April 2014 : Deputy Director of Technology Development Department, Tokai Reprocessing Technology Development Center, Nuclear Fuel Cycle Engineering Laboratories, Sector of Decommissioning and Radioactive Waste Management, JAEA
July 2013 : Senior Principal Engineer of Technology Development Department, Tokai Reprocessing Technology Development Center, Nuclear Fuel Cycle Engineering Laboratories, Tokai Research and Development Center, JAEA
Tenure:
March 31, 2028

Executive Director

MOMMA Toshiyuki

Duties:
  • Oversee affairs relating to Science and Technology Promotion Domain
  • Supervise affairs relating to Nuclear Safety and Emergency Preparedness Institute, and Nuclear Science Resarch Institute
Education:
March 1990 : Graduated from Department of Nuclear Engineering, School of Engineering, Hokkaido University
March 1988 : Graduated from Department of Nuclear Engineering, Faculty of Engineering, Hokkaido University
Professional history:
April 2024 : Executive Director, Japan Atomic Energy Agency (JAEA)
April 2021 : Director of Policy Planning and Administration Department, JAEA
April 2019 : Director of R&D Program Management Department, JAEA
January 2018 : Director of Radioactive Waste Management Department, JAEA
April 2017 : Deputy Director of Radioactive Waste Management Department, JAEA
July 2016 : Deputy Director of Office of Strategic Planning, JAEA
April 2014 : Senior Principal Engineer of Office of Strategic Planning, JAEA
July 2013 : Senior Principal Engineer of Department of Partnership Operations for Plant Restoration, Headquarters of Fukushima Partnership Operations, JAEA
Tenure:
March 31, 2028

Executive Director

KONTOH Masaaki

Duties:
  • Supervise affairs relating to Tsuruga site
  • In charge of Tsuruga Head Office as Deputy Senior Director General, and Decommissioning and Waste Management Domain as Deputy Senior Director General
Education:
March 1992 : Graduated from Department of Metallurgy. School of Engineering Kyoto University
March 1990 : Graduated from Faculty of Engineering, Kyoto University
Professional history:
April 2024 : Executive Director, Japan Atomic Energy Agency (JAEA)
July 2021 : General manager in charge of nuclear safety enhancement, Corporate Planning Office, Kansai Electric Power Company, Inc. (KEPCO)
July 2017 : Chief Manager of Quality Assurance Group, Nuclear Power Generation Department, Nuclear Power Division, KEPCO
December 2015 : Manager of Nuclear Fuel Cycle Business Group, Nuclear Fuel Cycle Office, KEPCO
December 2012 : Seconded to Washington Policy & Analysis, United States of America
June 2010 : Manager of Nuclear Power Planning Group, Nuclear Power Planning Department, Nuclear Power Division, KEPCO
June 2008 : Manager of Safety & Emergency Preparedness Group, Nuclear Power Generation Department, Nuclear Power Division, KEPCO
July 2005 : Manager of Takahama Power Station Quality Assurance Office, KEPCO
June 2002 : Leader of Power Generation Group, KEPCO
April 1992 : Joined KEPCO
Tenure:
March 31, 2028

Executive Director

UEDA Takuro

Duties:
  • Oversee affairs relating to research and development promotion
  • Supervise affairs relating to Fukushima site
  • In charge of Decommissioning and Waste Management Domain as Deputy Senior Director General
Education:
March 1991 : Graduated from School of Engineering for Nuclear Engineering, Tohoku University
Professional history:
April 2025 : Executive Director, Japan Atomic Energy Agency (JAEA)
July 2024 : Senior Executive Officer, JAEA
April 2020 : Vice President for the Industry-University Cooperation, Tohoku University
July 2019 : Director for Emergency Preparedness and Response, Nuclear Disaster Management Bureau, Cabinet Office
June 2016 : Executive Director, Nuclear Damage Compensation and Decommissioning Facilitation Corporation
July 2014 : Manager, General Affairs and Management Department, Niigata Prefecture
June 2012 : Director for Industrial Promotion for Okinawa Affairs, Cabinet Office
July 2009 : Manager, Environmental Protection Guidance Office, Industrial Science and Technology Policy and Environment Bureau, Ministry of Economy, Trade and Industry
April 1991 : Joined Ministry of Economy, Trade and Industry
Tenure:
March 31, 2028

Executive Director

UEDA Mitsuyuki

Duties:
  • Oversee affairs relating to policy planning and administration, general affairs, human resources development, financial affairs, contract, audit, computational science & e-systems, and integrated support for nuclear nonproliferation, security, and human resource development
Education:
March 1997 : Completed Master’s Program, Department of Aeronautics and Astronautics, The University of Tokyo
March 1995 : Graduated from Department of Aeronautics and Astronautics, The University of Tokyo
Professional history:
April 2025 : Executive Director, Japan Atomic Energy Agency (JAEA)
April 2024 : Director, Policy Division, R&D Bureau, Ministry of Education, Culture, Sports, Science and Technology (MEXT)
August 2022 : Director, Space Development and Utilization Division, R&D Bureau, MEXT
July 2021 : Director, International Strategy Planning, S&T Policy Bureau, MEXT
July 2019 : Counsellor, Strategy and Policy Planning, National Center of Incident Readiness and Strategy for Cybersecurity (NISC), Cabinet Secretariat
July 2017 : Director, International S&T Affairs Division, S&T Policy Bureau, MEXT
July 2015 : Director for Quantum Science and Technology, MEXT
July 2013 : Director for Budget Planning and Coordination, Budget and Accounts Division, Minister’s Secretariat, MEXT
July 2011 : Director for Basic Research Promotion, MEXT
June 2007 : First Secretary and Nuclear Energy Attache, Embassy of Japan U.S.A.
April 1997 : Joined Atomic Energy Bureau, Science and Technology Agency (former agency of MEXT)
Tenure:
March 31, 2028

Executive Director

HIRATA Masaru

Duties:
  • Oversee affairs relating to overseas business strategy, international affairs, construction, and Nuclear Energy Research and Development Domain
  • Supervise affairs relating to Oarai site
Education:
March 1986 : Graduated from Department of Nuclear Reactor Engineering, School of Science and Engineering, Kindai University, Japan
Professional history:
April 2026:Executive Director, Japan Atomic Energy Agency (JAEA)
April 2025:Executive Officer, Deputy Senior Director General of Nuclear Energy Research and Development Domain, and Advisor to the President of JAEA
July 2024:Deputy Senior Director General of Nuclear Energy Research and Development Domain, JAEA
April 2024:Director of Strategy and Management Department, Oarai Research and Development Institute, JAEA
April 2021:Director of Strategy and Planning Office, Sector of Fast Reactor and Advanced Reactor Research and Development, JAEA
April 2020:Director of R&D Program Management Department, JAEA
April 2018:Deputy Director of R&D Program Management Department, JAEA
April 2015:Senior Principal Researcher of Design and Standard Office, Advanced Fast Reactor Cycle Research and Development Center, Sector of Fast Reactor Research and Development, JAEA
October 2011:Senior Principal Researcher of Project Management Office, Sector of Advanced Nuclear System Research and Development, JAEA
Tenure:
March 31, 2028

Auditor

OKUBO Hiroshi

Duties:
Audit the Agency's operations
Education:
March 1994 : Graduated from Faculty of Law, The University of Tokyo
Professional history:
June 2025 :Auditor, Japan Atomic Energy Agency (JAEA)
June 2023 :General Manager, Head of Tokai Branch, Development Bank of Japan Inc. (DBJ)
June 2021 :General Manager, Head of Corporate Finance Dept. Division 2, DBJ
June 2020 :General Manager, Corporate Finance Dept. Division 2, DBJ
June 2018 :General Manager, Credit Analysis Dept. DBJ
April 2017 :Deputy General Manager, Financial Institutions Dept. DBJ
July 2015 :Senior Vice President, Business Planning & Coordination Dept. DBJ
March 2013 :Senior Vice President, Corporate Finance Dept. Division1, DBJ
May 2010 :Senior Vice President, Tokai Branch, DBJ
April 1994 :Joined The Japan Development Bank
Tenure:
the approval date of the FY 2025 financial statements

Auditor (part-time)

SEKIGUCHI Mina

Duties:
Audit the Agency's operations
Education:
June 1995 : Certified Public Accountant (CPA) of the State of Texas
December 1992 : Graduated from The University of Texas at Arlington Graduate School with MBA
March 1986 : Graduated from Department of English, Dokkyo University
Professional history:
September 2022 : Auditor (part-time), Japan Atomic Energy Agency (JAEA)
July 2022 : Outside Director, TRAINOCATE Holdings, ltd.
June 2022 : Outside Director, Penta-Ocean Construction co., ltd.
Managing Partner, RESONANCIA LLC
September 2020 : Climate Change and Decarbonization Advisory Lead-KPMG Sustainable value Japan, KPMG Japan
July 2013 : Head of Energy & Natural Resources, KPMG Asia Pacific Region
July 2012 : Head of Energy & Infrastructure Sector, KPMG Japan
Managing Director, KPMG AZSA LLC
July 2006 : KPMG FAS Co.
July 1999 : Global Management Directions, ltd.
September 1996 : Asahi & Co. (Current KPMG AZSA LLC)
April 1993 : Dallas Office, Arthur Andersen & Co.
Tenure:
the approval date of the FY 2025 financial statements