- 2019/04 - 2020/03 日本大学 法学部 特任教授
- 2017/04 - 2019/03 Nihon University Collage of Law professor
- 2013/04 - 2017/03 Nihon University Graduate School of Intellectual Property professor
- 2005/04 - 2013/03 Nihon University Advanced Research Institute for the Sciences and Humanities Professor
- 2004/07 - 2005/03 Nihon University University Research Center Professor
- 2003/07 - 2004/07 Ministry of Economy, Trade and Industry Shikoku Bureau of Economy, Trade and Industry Director-General
- 2002/06 - 2003/07 Ministry of Economy, Trade and Industry,, General Coordination and Policy Planning Department,, ,General Coordination and Policy Planning Department Planning and General Coordination and Policy Planning Department, Shikoku Bureau of Economy, Trade and Industry Director
- 1999/06 - 2003/06 Japan Regional Development Corporation Coal Mining Areas Development Planning and ,Construction Department Director
- 1998/06 - 1999/06 Ministry of International Trade and Industry Planning Division, General Coordination Bureau, Agency of Industrial Science and Technology Director
- 1997/06 - 1998/06 Ministry of INternational Trade and Industry Alcohol Division, Basic Industries Bureau Director
- 1995/06 - 1997/06 National Land Agency Planning Division, Metropolitan Areas Planning and Coordination Bureau Senior Planner
- 1993/04 - 1995/06 Ministry of International Trade and Industry Latin America Office, Trade Policy Bureau Director