- 2021/06 - 現在 Kokugakuin University Organization for the Advancement of Research and Development
- 2021/04 - 現在 國學院大學大学院 文學研究科 教授(兼任)
- 2021/04 - 現在 Ochanomizu University Faculty of Letters and Education
- 2018 - 現在 Kokugakuin University Faculty of Letters, Department of Japanese Literature
- 2015 - 2021/03 Kokugakuin University
- 2018 - 2020 Waseda University Graduate School of Letters, Arts and Sciences
- 2015 - 2018 Kokugakuin University Faculty of Letters, Department of Japanese Literature
- 2011 - 2015 Nishogakusha University Graduate School of Literature, Course in Japanese Literature
- 2009 - 2015 Nishogakusha University Faculty of Literature, Department of Japanese Literature
- 2003 - 2013 Waseda University School of Letters, Arts and Sciences I
- 2006 - 2012 Yokohama City University
- 2007 - 2009 :国文学研究資料館研究専門員(兼任)
- 2007 - 2009 :二松學舎大学文学部専任講師
- 2006 - 2007 :秀明大学総合経営学部専任講師
- 2000 - 2007 :早稲田大学教育学部非常勤講師
- 1994 - 2006 :早稲田実業学校講師
- 1990 - 1994 :早稲田実業学校教諭
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