| 2005 | Minister of Economy, Trade and Industry (Third Koizumi Cabinet) |
| 2005 | Chair, Special Committee on Postal Privatization, HR |
| 2004 | Director-General, Election Bureau, LDP |
| 2001 | Deputy Secretary General, Liberal Democratic Party |
| 2003 | Joined the Liberal Democratic Party (LDP)
Chair, Special Committee on Tourism, LDP |
| 2002 | Secretary-General and Representative, New Conservative Party |
| 2000 | Minister of Transport and Director-General of Hokkaido Development Agency (Mori Cabinet) |
| 1999 | Minister of Transport and Director-General of Hokkaido Development Agency (Second Obuchi Cabinet) |
| 1997 | Chair, Standing Committee on Construction, HR |
| 1995 | Director, Election Division, New Frontier Party |
| 1993 | State Secretary of Transportation (Hosokawa Cabinet) |
| 1990 | State Secretary of Transportation (Second Kaifu Cabinet) |
| 1983 | Elected as member of the HR (Has been elected consecutively eight times since then) |
| 1975 | Wakayama Prefectural Assemblyman (served two terms) |
| 1961 | Secretary to Saburo Endo (former House of Representative (HR) member and former Minister of Construction, from Shizuoka Prefecture) |
