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 House of Councillors
 
(Major posts in the House of Councillors)
 2014 Chairman, Committee on Financial Affairs
 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

(as of May 11,2023)