Born:
 April 2, 1958, Kanagawa Prefecture
 
Education:
 1982 Keio University, Faculty of Law
 
Career:
 1982 joined The Matsushita Institute of Government and
    Management
 1987 Member, Kanagawa Prefectural Assembly (2 terms)
 1993 Member, House of Representatives (3 terms)
 2003 Governor, Kanagawa Prefecture (2 terms)
 2013 first elected to the Senate
 2019 second elected to the Senate
 2022 third elected to the Senate
 
(Major posts in the Senate)
 2022 Chairman, Special Committee on Consumer Affairs
 2023 Chairman, Committee on Discipline
 2025 Chairman, Special Committee on Consumer Affairs
 
(Major post in a political party)
 2018 President, Party of Hope
 
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)