- 1980 - 1999
- Public Prosecutor, Criminal Affairs Department and Trial Department, Tokyo District Public Prosecutors Office; Public Prosecutor, Toyama District Public Prosecutors Office; Public Prosecutor, Criminal Affairs Department, Tokyo District Public Prosecutors Office; Public Prosecutor, Kushiro District Public Prosecutors Office; Public Prosecutor, Maebashi District Public Prosecutors Office; Public Prosecutor, Special Investigation Department, Tokyo District Public Prosecutors Office; Instructor, Research and Training Institute of Ministry of Justice; Public Prosecutor, Special Investigation Department and Criminal Affairs Department, Tokyo District Public Prosecutors Office
- 1999 - 2008
- Director, Enforcement Division, Immigration Bureau of Japan, Ministry of Justice; Deputy Director, Special Trial Department, Tokyo District Public Prosecutors Office; Director, General Affairs Department, Immigration Bureau of Japan, Ministry of Justice; Deputy Director, Criminal Affairs, Tokyo District Public Prosecutors Office; Deputy Chief Prosecutor, Sendai District Public Prosecutors Office; Director - General, Public Security Bureau, Tokyo District Public Prosecutors Office; Director - General, General Affairs Department, Public Security Intelligence Agency
- 2008 - 2009
- Chief Prosecutor, Kanazawa District Public Prosecutors Office
- 2009 - 2010
- Public Prosecutor, Supreme Public Prosecutors Office
- 2010 - 2011
- Director,General Affairs Department, Supreme Public Prosecutors Office
- 2011 - 2012
- Deputy Chief Prosecutor, Tokyo High Public Prosecutors Office
- 2012 - 2014
- Chief Prosecutor, Tokyo District Public Prosecutors Office
- 2014 - 2015
- Deputy Prosecutor-General, Supreme Public Prosecutors Office
- 2015 - 2016
- Superintending Prosecutor, Osaka High Public Prosecutors Office
- 2016 - present
- Special Advisor, Nagashima Ohno & Tsunematsu
