
Career:
| Jan.2012 | Chairman of the National Public Safety Commission Minister of State for Consumer Affairs and Food Safety Minister for the Abduction Issue (Reshuffled Noda Cabinet) | |
| Sep.2011 | Served as Senior Vice Minister of Land, Infrastructure, Transport and Tourism (Noda Cabinet) | |
| Jan.2011 | Served as chairman of the House of Representatives special committee on combat with maritime piracy, prevention of transnational terrorism and our support activities (177th Diet) | |
| Oct.2010 | Served as chairman of the House of Representatives special committee on combat with maritime piracy, prevention of transnational terrorism and our support activities (176th Diet) | |
| Oct.2009 | Served as First chairman of the Budget Committee of the House of Representatives | |
| Sep.2009 | Served as Deputy chairman of the Diet Affairs Committee, DPJ | |
| Aug.2009 | Reelected to the House of Representatives (fourth term) (45th general election) | |
| Sep.2007 | Served as Deputy Chief of the office for abduction issues, DPJ | |
| Sep.2006 | Served as vice-secretary general, the Democratic Party of Japan | |
| Sep.2005 | Reelected to the House of Representatives (third term) (44th general election) | |
| Nov.2003 | Reelected to the House of Representatives (second term) (43rd general election) | |
| Jun.2000 | First won a House of Representatives seat (42nd general election) | |
| Jul.1993 | Won a seat in the Tokyo Metropolitan Assembly (second term) | |
| Jul.1989 | Won a seat in the Tokyo Metropolitan Assembly (first term) |