Mr. YAMADA Yoshihiko
- Democratic Party For the People and The Shin-Ryokufukai
- Elected 2025, Proportional Representation
- Current Responsibilities in the House of Councillors
（as of November 9,2026)
Committee on Foreign Affairs and Defense
Special Committee on Okinawa and Northern Problems as well as Regional Issues (Director)
Research Committee on International Affairs
Commission on the Constitution
Born:
September 7, 1962, Chiba Prefecture
Education:
1986 Gakushuin University, Faculty of Economics
2008 Saitama University, Graduate School, Doctor Course,
Ph.D. in Economics
Career:
1986 joined The Toyo Trust & Banking Co., Ltd.
1991 joined Japan Shipbuilding Industry Foundation (now
The Nippon Foundation)
2009 Professor, Marin Science and Technology,
Tokai University
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)