Born:
 March 10, 1967, Chiba Prefecture
 
Education:
 1989 Juntendo University, Faculty of Sport Science
 1993 Juntendo University, Graduate School of Sports Science
 
Career:
 1986 won Gold Medals in 100 m Backstroke and 4 x 100 m
    Medley Relay, 10th Asian Games (Seoul)
 1987 won Gold Medals in 100 m and 200 m Backstroke,
    XIV Summer Universiade (Zagreb)
 1988 won a Gold medal in 100 m Backstroke, Games of
    the XXIV Olympiad (Seoul)
 1993 Assistant Professor, Juntendo University
 1994 Visiting Researcher, University of Colorado Boulder
 1998 Guest Swimming Coach, Harvard University
 2003 Executive Committee Member, World Olympians
    Association (WOA)
 2006 Associate Professor, Juntendo University
 2007 obtained Ph.D. in Medicine
 2013 Professor, Juntendo University
    President, Japan Aquatics
    President, Olympians Association of Japan (OAJ)
    Executive Board Member, Japanese Olympic Committee (JOC)
 2015 Commissioner, Japan Sports Agency
 2015 Board Member, The Tokyo 2020 Games Organizing
    Committee
 2016 Vice President, Asia Aquatics
 2017 Bureau Member, World Aquatics
 2020 Advisor to Ministry of Education, Culture, Sports,
    Science and Technology (MEXT)
 2021 Professor and Vice Dean, Faculty of Health and Sports
    Science, Juntendo University
    Director, Juntendo Administration for Sports, Health and
    Medical Sciences (JASMS)
    President, Japan Aquatics
    Executive Board Member, Japanese Olympic Committee (JOC)
 2022 inducted into the International Swimming Hall of Fame (ISHOF)
 2023 Executive Committee Member, Asian University Sports
    Federation (AUSF)
    Executive Committee Member, International University
    Sports Federation (FISU)
 2025 elected to the Senate
 
Note: The Sangiin, which had been known as the House of Councillors, is called the Senate in English as of August 2026.

(as of October 26,2026)