- 2022/04 - 現在 Hokkaido University professor emeritus
- 2022/04 - 現在 Waseda University Global Education Center Part-time Lecturer
- 2022/04 - 現在 Waseda University Faculty of Education and Integrated Arts and Sciences professor
- 2021/04 - 現在 Japan Women's University Faculty of Humanities visiting researcher
- 2024/04 - 2025/03 Daito Bunka University
- 2022/07 - 2022/07 Hokkaido University Graduate School of International Media, Communication, and Tourism Studies Part-time Lecturer
- 2017/04 - 2022/03 Hokkaido University Center for Media and Tourism Studies research fellow/director (concurrently)
- 2016/04 - 2022/03 Hokkaido University Center for Language Learning
- 2016/04 - 2022/03 Hokkaido University Graduate School of International Media, Communication and Tourism Studies professor (concurrently)
- 2016/04 - 2022/03 Hokkaido University Research Faculty of International Media and Communication Professor
- 2007/04 - 2022/03 Hokusei Gakuen University part-time lecturer
- 2006/04 - 2022/03 Hokkaido Univ. Center for Advanced Tourism Studies research faculty (concurrently)
- 1994/04 - 2018/03 電気通信大学・小樽商科大学・北海学園大学・神戸大学・大阪外国語大学・京都大学・金沢大学・北星学園大学・琉球大学・放送大学 非常勤講師(集中講義を含む)
- 2007/04 - 2016/03 Hokkaido Univ. Reserch Faculty of Media and Communication associate professor
- 2007/04 - 2016/03 Hokkaido Univ. Center for Language Learning associate professor (concurrently)
- 2007/04 - 2016/03 Hokkaido Univ. Graduate School of International Media, Communication and Tourism Studies (IMCTS) associate professor (concurrently)
- 2009/04 - Hokkaido Univ. Center for East Asia Media Studies research fellow (concurrently)
- 2000/04 - 2007/03 Hokkaido Univ. Graduate School of International Media and Communication associate professor (concurrently)
- 1996/04 - 2007/03 Hokkaido Univ. Institute of Language and Culture associate professor
- 2003/04 - 2004/03 Beijing Center for Japanese Studies vice-director (concurrently)
- 1994/04 - 1996/03 Univ. of Tokyo Dept. of Chinese Language, College of Arts and Sciences assistant (assistant professor)
- 1993/04 - 1994/03 Univ. of Tokyo Dept. of Chinese Language and Literature, Faculty of Letters TA (Teaching Assistant)
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