- 2024/04 - Waseda University Faculty of Letters, Arts and Sciences Professor
- 2023/04 - 2024/03 Kobe City University of Foreign Studies Faculty of Foreign Studies, Department of Chinese Studies Professor
- 2013/04 - 2023/03 Kobe City University of Foreign Studies Faculty of Foreign Studies, Department of Chinese Studies
- 2011/04 - 2013/03 University of the Ryukyus Faculty of Law and Letters, Department of Languages and Cultures
- 2011/04 - 2013/03 - , University of the Ryukyus, Faculty of Law and Letters, Department of Languages and Cultures Associate Professor
- 2010/04/01 - 2011/03/31 , University of the Ryukyus, Faculty of Law and Letters, Department of Languages and Cultures Assistant Professor
- 2010/04 - 2011/03 University of the Ryukyus Faculty of Law and Letters, Department of Languages and Cultures
- 2008/04 - 2010/03 Kanagawa Institute of Technology
- 2008/04 - 2010/03 Waseda University Faculty of Letters, Arts and Sciences
- 2003/04 - 2005/03 私立武蔵高等学校 国語科 非常勤講師(漢文)
- 2002/04 - 2003/03 私立城北中・高等学校 国語科 非常勤講師
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