Born:
 January 14, 1963, Saitama Prefecture
 
Education:
 1987 Keio University, School of Medicine
 1993 Keio University, Faculty of Letters
 1994 Ph.D. in Medical Science, Keio University
 1996 Keio University, Faculty of Law
 2005 MBA, Graduate School, University of Oxford
 
Career:
 1987 Surgical Specialist at Keio University Hospital
 1999 registered as a Lawyer
 2007 Professor, Keio University, Graduate School of Law
    Professor, Keio University, School of Medicine
    (Department of Surgery)
    first elected to the Senate
 2013 second elected to the Senate
 2019 third elected to the Senate
 2025 fourth elected to the Senate
 
(Major posts in the Senate)
 2014 Chairman, Committee on Financial Affairs
 2020 Chairman, Committee on Fundamental National
    Policies
 2021 Chairman, Special Committee on Regional
    Revitalization and Consumer Affairs
 2022 Chairman, Special Committee on Regional
    Revitalization and Formation of a Digital Society
    Chairman, Special Committee on Political Ethics and
    Election System
 2024 Chairman, Special Committee on Regional
    Revitalization and Formation of a Digital Society
 2025 Chairman, Special Committee on Political Reform
 2025 Chairman, Special Committee on Official
    Development Assistance, International Cooperation,
    Humanitarian Assistance and Related Matters
 
(Major posts in the Government)
 2026 Minister for Digital Transformation
    Minister in charge of Promoting AI and Digital Reform
    Minister in charge of Cybersecurity
    Minister in charge of Content Strategy
    Minister of State for Intellectual Property Strategy
    Minister of State for Science and Technology Policy
    Minister of State for Space Policy
    Minister of State for Artificial Intelligence Strategy
    Minister of State for Ocean Policy
    Minister of State for Cybersecurity
 
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)