- 2016/04 - 現在 日本大学 危機管理学部 教授
- 2016/04 - 2023/03 Nihon University College of Risk Management 危機管理学部 Dean, Professor of Law
- 2005/04 - 2016/03 Nihon University College of Law Professor of Law
- 2003/04 - 2005/03 Professor of Law, Musashino University Faculty of Temporary Society
- 1999/04 - 2003/03 Professor of Law, Musashino Womens University Faculty of Temporary Society
- 1995/04 - 1999/03 Professor of Law, Hachinohe Univeristy College of Commerce
- 1991/04 - 1995/03 Associate Professor of Law, Hachinohe Univeristy College of Commerce
- 1994/01 - 1994/03 Visiting Professor, University of San Francisco School of Law
- 1987/04 - 1991/03 Lecture in Law, hachinohe University
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