Born:
 January 8, 1958, Tokyo
 
Education:
 1981 Kyoto University, Faculty of Law
 
Career:
 1981 joined The Matsushita Institute of Government and
    Management
 1985 Member, Tokyo Metropolitan Assembly (2 terms)
 1993 Member, House of Representatives
 1999 Mayor, Suginami City, Tokyo (3 terms)
 2012 Member, House of Representatives
 2016 first elected to the Senate
 2022 second elected to the Senate
 
(Major post in the Senate)
 2021 Chairman, Committee on Health, Welfare and Labour
 
(Major posts in the Government)
 2018 Parliamentary Vice-Minister of Defense
    Parliamentary Vice-Minister of Cabinet Office
 
(Major post in a political party)
 2026 President, Central Institute of Politics, Liberal
    Democratic Party
 
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)