| June 2010: | Chief Cabinet Secretary (Kan Cabinet) |
| February 2010: | Minister of State for the New Concept of Public Service
Minister of State for Civil Service Reform
Minister of State for National Policy
(Hatoyama Cabinet) |
| January 2010: | Minister of State for Government Revitalization
Minister of State for Civil Service Reform
Minister of State for National Policy
(Hatoyama Cabinet) |
| September 2009: | State Minister in Charge of Government Revitalization and Civil Service Reform, Cabinet Office
(Hatoyama Cabinet) |
| August 2009: | Elected Member of the House of Representatives at the constituency of Tokushima No.1 |
| January 2009: | Member of Budget Committee, House of Representatives |
| December 2008: | Senior Director, Special Committee on Consumer Issues, House of Representatives |
| February 2008: | Acting President, Parliament Group on achieving a breakthrough and reforming medical front |
| September 2007: | Director, Committee on Rules and Administration, House of Representatives |
| September 2006: | Chairperson, Budgetary Surveillance Administrative Committee, House of Representatives |
| March 2006: | Deputy Secretary General, the Democratic Party of Japan |
| December 2005: | Director Representative, "Common Political Policy Platform" |
| September 2005: | Chairperson, Think-tank Establishing Preparatory Committee, the Democratic Party of Japan |
| September 2005: | Minister of Health, Labor and Welfare, "Next Cabinet" of the Democratic Party of Japan |
| September 2005: | Elected Member of the House of Representatives at the constituency of Tokushima No.1 |
| April 2005: | Deputy of Chairperson, Joint Committee of Two Houses for Pension Reform |
| May 2004: | Chief Cabinet Secretary, "Next Cabinet" of the Democratic Party of Japan |
| May 2004: | Chairperson, Policy Research Committee, the Democratic Party of Japan |
| December 2003: | Chairperson, Community Interaction Committee, the Democratic Party of Japan; Chairperson, Constitution Research Committee, the Democratic Party of Japan |
| November 2003: | Elected Member of the House of Representatives at the constituency of Tokushima No.1 |
| April 2003: | Chairperson, Political Power Preparatory Committee |
| March 2003: | President, "Committee on Considering Religion and Politics," the Democratic Party of Japan |
| December 2002: | Ministry of State for Economic and Fiscal Policy, "Next Cabinet" of the Democratic Party of Japan; Chairperson of Economic Strategy Council |
| October 2002: | Deputy of Chairperson, Research Commission on the Constitution, House of Representatives |
| October 2002: | Chairperson, Research Commission on the Constitution, the Democratic Party of Japan |
| June 2002: | Chairperson, Secondary Political Power Operating Committee, the Democratic Party of Japan |
| September 2001: | Person in Charge of Chugoku, Shikoku, Kyushu Blocks, the Democratic Party of Japan |
| June 2000: | Chairperson, Planning Committee, the Democratic Party of Japan |
| June 2000: | Elected Member of the House of Representatives at the constituency of Tokushima No.1 |
| October 1999: | Director, Planning Bureau, the Democratic Party of Japan |
| April 1998: | Head of Vice Secretary General |
| September 1997: | Deputy Secretary General, the Democratic Party of Japan |
| November 1996: | Chairperson, Policy Research Committee, the Democratic Party of Japan |
| October 1996: | Elected Member of the House of Representatives at the constituency of Tokushima No.1 |
| July 1993: | Stood for the House of Representatives (runner-up) |
| February 1990: | Elected Member of the House of Representatives |
| April 1971: | Finished the legal apprentice and started the career as a lawyer |
| 1969: | Left Faculty of Law, University of Tokyo |
| October 1968: | Passed the National Bar Examination during the university |
| April 1966: | Proceed to Faculty of Law, University of Tokyo |
| April 1964: | Enter Collage of Arts and Sciences, University of Tokyo |
| March 1964: | Graduated from the Tokushima Municipal Jonan High School |
| March 1961: | Graduated from the Tokushima Municipal Josei Junior High School |
| March 1958: | Graduated from the Tokushima Municipal Sako Elementary School |
