Born:
 July 1, 1965, Shimane Prefecture
 
Education:
 1988 Chuo University, Faculty of Law (B.A.)
 1991 University of Alabama Graduate School,
    Department of Political Science (M.A.)
 
Career:
 1992 joined Japan Telecommunications Workers' Union
 1994 seconded to International Confederation of Free Trade
    Unions, Asia Pacific Regional Organisation in
    Singapore
 1996 Director of International Division, Japan
    Telecommunications Workers' Union
 2001 worked in the International Training Centre of
    the International Labour Organization (ILO) in Italy
 2006 Senior Specialist for Workers' activities,
    ILO sub-regional office for South-East Asia and
    the Pacific (SRO-Manila)
 2009 Member of Executive Committee, All NTT Workers
    Union
    Member of Executive Committee, Federation of
    Information and Communication Technology Service
    Workers of Japan
 2010 first elected to the Senate
 2016 second elected to the Senate
 2022 third elected to the Senate
 
(Major posts in the Senate)
 2018 Chairman, Special Committee on Okinawa and
    Northern Problems
 2021 Chairman, Committee on Economy and Industry
 2022 Chairman, Committee on Economy and Industry
 
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)