- 2023/04 - 現在 Bunkyo University Graduate School of Language and Culture Professor
- 2023/04 - 現在 Bunkyo University Faculty of Language & Literature Department of English Language & Literature Professor
- 2020/09 - 現在 Miyagi Gakuin Women's University Department of English, Faculty of Liberal Arts Parttime Lecturer
- 2017/04 - 現在 Aoyama Gakuin University Faculty of Literature Parttime Lecturer
- 2018/04 - 2023/03 Bunkyo University, Graduate School of Language and Culture Associate Professor
- 2018/04 - 2023/03 Bunkyo University Department of English Language & Literature, Faculty of Language & Literature Associate Professor
- 2016/05 - 2018/03 Meikai University P&P (=Plulingual & Pluricultural) Education Center Assistant Professor
- 2010/02 - 2015/03 Hokkaido University of Education Department of English Education, Faculty of Education, Asahikawa Campus Associate Professor
- 2009/04 - 2010/03 Gakushuin University Department of English Language and Cultures, Faculty of Literature Parttime Lecturer
- 2006/04 - 2010/03 Gakushuin University Foreign Language Teaching and Research Centre Parttime Lecturer
- 2002/04 - 2010/03 Aoyama Gakuin University Faculty of Literature Parttime Lecturer
- 2009/10 - 2010/01 Hokkaido University of Education Department of English Education, Faculty of Education, Asahikawa Campus Parttime Lecturer
- 2007/04 - 2010/01 Wako University Department of Transcultural Studies, Faculty of Representational Studies Associate Professor
- 2007/04 - 2008/03 Miyagi Gakuin Women's University Department of English, Faculty of Liberal Arts Parttime Lecturer
- 2003/04 - 2007/03 Wako University Department of Literature, Faculty of Representational Studies Fulltime Lecturer
- 2002/04 - 2003/03 Hosei University Faculty of Social Sciences Parttime Lecturer
- 2000/04 - 2003/03 Johoku High School Parttime Lecturer
- 1996/04 - 2000/03 Hozen High School Parttime Lecturer
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THE ENGLISH LITERARY SOCIETY OF JAPAN, KANTO BRANCH
, Hokkaido Theoretical Linguistics Society(HTLS)
, THE ENGLISH LITERARY SOCIETY OF JAPAN, HOKKAIDO BRANCH
, THE SOCIETY FOR WESTERN LANGUAGE AND CULTURE
, THE JAPAN ASSOCIATION OF ENGLISH LINGUISTICS AND LITERATURE
, THE SOCIETY OF JAPANESE GRAMMAR
, THE ENGLISH LITERARY SOCIETY OF JAPAN
, MODERN ENGLISH ASSOCIATION
, THE ENGLISH LINGUISTIC SOCIETY OF JAPAN
, TACL (Tokyo Area Circle of Linguistics)
, THE LINGUISTIC SOCIETY OF JAPAN
, THE SOCIETY OF ENGLISH GRAMMAR AND USAGE
, THE PRAGMATICS SOCIETY OF JAPAN