| Oct.2005 | Minister of State for Administrative Reform, Regulatory Reform, Special Zones for Structural Reform,and Regional Revitalization |
| Oct.2004 | Deputy Chairman, General Council, LDP |
| Mar.2004 | Member, Research Commission on Local Administration systems |
| Nov.2003 | Chairman, Research Commission on Local Government Administration, LDP |
| Oct.2002 | Senior Vice-Minister of Land, Infrastructure and Transport |
| Jan.2002 | Member, General Council, LDP |
| Feb.2001 | Chairman, Research Commission on Local Government Administration, LDP |
| Jan.2001 | Chairman of the House of Representatives Special Committee on Political Ethics and Election Laws |
| Jul.2000 | Chief Deputy Secretary-General, LDP |
| Oct.1999 | Senior State Secretary for Transport |
| Sep.1997 | Chairman of the House of Representatives Standing Committee on Foreign Affairs |
| Nov.1996 | Chairman of the House of Representstives Special Committee on Election Laws |
| Nov.1996 | Chairman, Special Committee to Promote the Development of Osaka Bay Area |
| Sep.1995 | Deputy Chairman, Policy Research Council, LDP (Local Administration and Transport) |
| Aug.1993 | Director of the House of Representatives Special Committee on Decentralization of Government |
| Aug.1993 | Acting Head, National Campaign Headquarters, LDP |
| Jan.1993 | Chairman of the House of Representstives Standing Committee on Local Administration Division |
| Nov.1991 | Director, Local Administration Division, LDP |
| Jan.1991 | Chaiman of the House of Representatives Standing Committee on Science and Technology |
| Feb.1990 | Parliamentary Vice-Minister for Home Affairs |
| Nov.1984 | State Secretary for Environment |
| Sep.1981 | Chaiman of the Policy Board, New Riberal Club |
| Dec.1976 | First elected to the House of Representatives |
| Jan.1967 | Research Bureau, Economic Planning Agency on Loan (to 1969 July) |
| Apr.1961 | Entered Sumitomo Heavy Industries,Ltd. |
