Public Prosecutor: Tokyo, Fukuoka, Yokohama and Shizuoka District Public Prosecutors' Offices, 1991-1997; Criminal Affairs Bureau of the Ministry of Justice, 1998-1999. First Secretary, Japanese Embassy, U.K., 1999-2002. Public Prosecutor: Criminal Affairs Bureau of the Ministry of Justice, 2002-2003; Chiba District Public Prosecutors' Office, 2003-2004; Secretarial Division, Ministry of Justice, 2004. Executive Assistant, Deputy Chief Cabinet Secretary, 2005-2007.