| Nov. 2003 | Minister of State, Chairman of the National Public Safety Commission
Minister of State for Youth Affairs and Measures for Declining Birthrate
Minister of State for Food Safety |
| Sep. 2003 | Minister of State, Chairman of the National Public Safety Commission
Minister of State for Youth Affairs and Measures for Declining Birthrate
Minister of State for Food Safety |
| Aug. 2001 | Chairman, Research Committee on Society of Cooperative Way of Life, HC |
| Jul. 2001 | Returned to the House of Councillors (3rd term) |
| May. 2000 | Head of the Party Organization Headquarters, LDP |
| Nov. 1996 | Executive Board Member, Education and Science Comittee HC |
| Feb. 1996 | Chairman, Special Committee on Policy Research and Women's Affairs, LDP |
| Aug. 1995 | Chairman, Education Committee, HC |
| Jan. 1993 | Director General, International Bureau, LDP |
| Aug. 1992 | Director General, Women's Affairs Bureau, Liberal Democratic Party (LDP) |
| Jul. 1992 | Returned to HC (2nd term) |
| Dec. 1990 | Parliamentary Vice Minister for Environment |
| 1986 | Elected to the House of Councillors (HC) |
