| Aug. 2007 | Appointed Minister of Justice |
| Sep. 2005 | Re-elected Member of the House of Representatives for the tenth time at the 44th general election |
| March 2004 | Chairman of the LDP Committee on Harmony between Nature and People |
| Nov. 2003 | Re-elected Member of the House of Representatives for the ninth time at the 43rd general election
|
| Oct. 2002 | Appointed Chairman of the Special Committee on Response to Armed Attacks
|
| Feb. 2002 | Appointed Chairman of the Committee on Rules and Administration
House of Representatives
|
| June 2000 | Re-elected Member of the House of Representatives for the eighth
time at the 42nd general election (LDP candidate for the Tokyo
proportional representation bloc)
|
| April 1999 | Ran as a candidate for the Tokyo gubernatorial election |
| March 1999 | Resigned from the House of Representatives and from the
Democratic Party of Japan
|
| Sep. 1996 | Appointed Deputy Leader of the Democratic Party of Japan and
Leader of the Tokyo Democratic Party of Japan
|
| April 1994 | Appointed Minister of Labour |
| Nov. 1991 | Appointed Minister of Education |
| Feb. 1990 | Member of the General Council of the Liberal Democratic Party |
| Nov. 1984 | Appointed Parliamentary Vice-Minister of Education |
| Dec. 1983 | Administrative Management Bureau Appointed Parliamentary Vice-Minister |
| Dec. 1976 | Elected Member of the House of Representatives for the first time at
the 34th general election
|
| July 1972 | Aide to Prime Minister Kakue Tanaka |
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