1980, graduate, School of Political Science and Economics, Waseda University. 2005, Member of the House of Representatives and Chairman of the Diet Affairs Committee, DPJ; 2006, Chairman of the National Rallying and Canvassing Committee, Democratic Party of Japan (DPJ); 2007, Chairman of the Public Relations Committee, DPJ; 2009, Chairman of the Committee on Discipline; Acting Secretary-General, House of Representatives; DPJ Member of the House of Representatives and Parliamentary Senior Vice-Minister of Finance; 2010, Minister of Finance; 2011, Prime Minister.