| 1979 | Passed National Bar Examination, worked as a lawyer affiliated with the Daini Tokyo Bar Association |
| 1983 | Elected to the House of Representatives (HR) |
| November 1987 | Deputy Chairman, Diet Affairs Committee, Liberal Democratic Party (LDP) |
| December 1988 | Parliamentary Vice-Minister of Posts and Telecommunications |
| February 1990 | Parliamentary Vice-Minister of Defense Agency |
| November 1991 | Chairman, Standing Committee on Communications, HR |
| September 1995 | Chairman, Standing Committee on Rules and Administration, HR |
| November 1996 | Director-General, Election Bureau, LDP |
| September 1997 | Director-General, Science and Technology Agency |
| July 1998 | Parliamentary Vice-Minister of Finance |
| February 2000 | Minister of State, Chairman, Financial Reconstruction Commission (Second Obuchi Cabinet) |
| April 2000 | Minister of State, Chairman, Financial Reconstruction Commission (Mori Cabinet) |
| September 2002 | Chairman, National Public Safety Commission; Minister of State for the Food Safety Commission* and Related Matters |
| November 2002 | Minister of State for the Industrial Revitalization Corporation* (additional post) |
| * Provisional Name |
