| Jan. 2010 | Director-General of the Cabinet Legislation Bureau (Hatoyama Cabinet) |
| Oct. 2006 | Deputy Director-General of the Legislation Bureau |
| Aug. 2004 | Director-General of the First Department, Cabinet Legislation Bureau |
| Aug. 1999 | Director-General of the Third Department, Cabinet Legislation Bureau |
| April 1996 | Executive Secretary of the Administration Office of the Director-General, Cabinet Legislation Bureau |
| July 1992 | Director of Municipal Tax Division, Local Tax Bureau, Ministry of Home Affairs |
| July 1987 | Counsellor of the First Department, Cabinet Legislation Bureau |
| April 1986 | Senior Deputy Director of Local Tax Planning Division, Local Tax Bureau, Ministry of Home Affairs |
| July 1981 | Deputy Director of General Affairs Division, Ministerfs Secretariat, Ministry of Home Affairs |
| June 1974 | General Affairs Division, Planning and Coordination Bureau, National Land Agency |
| April 1973 | Local Bond Divison, Local Finance Bureau, Ministry of Home Affairs |
| June 1971 | Graduated from the Faculty of Law, University of Tokyo |
