(As of Feb 2026)
| Career: | |
| 1974-1988: | Kawasaki Heavy Industries, Ltd. |
| July 1984: | Doctor of Engineering, Nagoya University for research on welding in nuclear power plants |
| Feb. 1990: | Member, House of Representatives (now in 13th term) |
| July 1994-Aug. 1995: | Parliamentary Vice-Minister of Labour |
| Oct. 1995-Nov. 1996: | Director, Foreign Affairs Division, Liberal Democratic Party (LDP) |
| Nov. 1996-Sept. 1997: | Director, LDP Fisheries Division |
| Aug. 1998-Oct. 1999: | Director, LDP Labour Division |
| May 2001-Jan. 2002: | Deputy Secretary-General, LDP |
| Jan. 2002-Oct. 2002: | Chair, HR Standing Committee on Health, Labour and Welfare |
| Sept. 2003-Sept. 2004: | State Minister of Health, Labour and Welfare |
| Oct. 2004-Nov. 2005: | Deputy Chairperson, LDP Policy Research Council |
| Nov. 2005-Sept. 2006: | Deputy Secretary-General, LDP |
| Nov. 2005-Sept. 2008: | Chairperson, LDP Committee for the Promotion of Peninsula Areas |
| Director, Labour Administration Division, LDP Party Organization and Campaign Headquarters | |
| Sept. 2007-Sept. 2008: | Chairperson, LDP Research Commission on Electric and Nuclear Power Plant Production |
| Oct. 2007-Aug. 2008: | Deputy Chairperson, LDP General Council |
| Sept. 2008-Sept. 2009: | Minister of Justice |
| Oct. 2009-Sept. 2010: | Director, Interest Group Policy Division, LDP Party Organization and Campaign Headquarters |
| Sept. 2010-Oct. 2011: | Chairperson, LDP Party Organization and Campaign Headquarters |
| Oct. 2011-Sept. 2012: | Chairperson, LDP Administrative Reform Promotion Headquarters |
| Dec. 2012-Feb. 2013: | Chair, Judge Indictment Committee, National Diet |
| Jan. 2013-Feb. 2026: | Director, Labour Administration Division, LDP Party Organization and Campaign Headquarters |
| Jan. 2013-Sept. 2014: | Chair, HR Special Committee for Investigation of Nuclear Power Issues |
| Jan. 2013- Jan. 2018: | Chairperson, LDP Research Commission on Employment Issues |
| Sept. 2014-Sept. 2015: | Deputy Chairperson, LDP General Council |
| Dec. 2014-Oct. 2016: | Chair, Judge Indictment Committee, National Diet |
| Oct. 2015-Sept. 2016: | Chairperson, LDP Headquarters for the Promotion of Revision to the Constitution |
| Sept. 2016-Oct. 2019: | Chair, HR Commission on the Constitution |
| Sept. 2017-Jan. 2018: | Chairperson, LDP Research Commission on Employment Issues |
| Oct. 2019-Oct. 2020: | Chair, HR Committee on Fundamental National Policies |
| Oct. 2020-Nov. 2021: | Chair, HR Deliberative Council on Political Ethics |
| Nov. 2021-Oct. 2024: | Chair, HR Commission on the Constitution |
| Feb. 2026-: | Speaker, House of Representatives |