| August 2007 | Minister of State for Okinawa and Northern Territories Affairs, Quality-of-Life Policy, Science and Technology Policy, "Challenge Again" Initiative, and Regulatory Reform
|
| September 2006 | Deputy Chairman, Diet Affairs Committee, Liberal Democratic Party |
| November 2005 | Chairman of Committee on Health, Labour and Welfare, the House of Representatives
|
| October 2005 | First Director of Committee on Education, Culture, Sports, Science
and Technology, the House of Representatives
|
| November 2003 | Director-General, Treasury Bureau, Liberal Democratic Party |
| October 2002 | Director, Science and Technology Division, Liberal Democratic Party |
| October 2002 | Director of Committee on Rules and Administration, the House of Representatives
|
| May 2001 | Senior Vice-Minister of Education |
| January 2001 | Director-General, Treasury Bureau, Liberal Democratic Party |
| July 2000 | Director, Commerce and Industry Division, Liberal Democratic Party |
| October 1999 | Parliamentary Vice-Minister of Construction (Obuchi and Mori Cabinet)
|
| August 1998 | Member of Committee on Rules and Administration, the House of Representatives
|
| October 1997 | Director, Youth Division, Liberal Democratic Party |
| June 1997 | Chairman of Minor Committee on issues of indication of genetically modified ingredients on food products
|
| November 1996 | Director of Committee on Cabinet, the House of Representatives |
| July 1993 | Member of the House of Representatives |
| April 1987 | Secretary to a Member of the House of Representatives |
| April 1982 | Long-Term Credit Bank of Japan |
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