| McIvor, Kauffman & Christensen, Tokyo Office (1970-1971) |
| Takahashi and Tanaka (Partner, 1971-1980) |
| Graham & James, Los Angeles Office (1979) |
| Nishimura and Sanada (Partner, 1981-1990) |
| Co-founding Partner of TMI Associates (1990-Present) |
| Auditor, Hayao Nakayama Foundation (1992-Present) |
| Lecturer, Chuo University, Faculty of Law (1996) |
| Outside Corporate Auditor, Outside Director, Eisai Co., Ltd. (2001-2005) |
| Outside Corporate Auditor, CSK Holdings Corporation (2007-2009) |
| Auditor, Japan Merchandising Rights Association (2009-Present) |
| Member of the Advisory Board, Chuo Law School, and Chuo Business School (2009-Present) |
| Auditor, Suntory Foundation (2010-Present) |
| Visiting Professor, University of Tokyo Graduate Schools for Law and Politics (2011) |
