- 2005 - 2007 助教授
- 2005 - 2007 Associate Professor,
- 2007 - Kumamoto University Faculty of Law
- 2007 - Associate Professor, ,Faculty of Law,Kumamoto University
- 2003 - 2005 大阪教育大 准教授
- 2003 - 2005 Associate Professor,Osaka Kyoiku University
- 2000 - 2003 大阪教育大 講師
- 2000 - 2003 Lecturer,Osaka Kyoiku University
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