- 2024/09 - 現在 The Waseda Institute of Advanced Study Associate Director
- 2019/04 - 現在 Professor, Faculty of Letters, Arts and Sciences, Waseda University
- 2017/02 - 現在 Visiting Researcher, Center for the Southern Song Study at Hanzhoug City Academy of Social Science
- 2023/08 - 2024/08 Visiting Scholar, Harvard-Yenching Institute
- 2015/04 - 2020/03 Visiting Researcher, Center for Cultural Resource Studies, Kanazawa University
- 2017/04 - 2019/03 Associate Professor, Faculty of Letters, Arts and Sciences, Waseda University
- 2016/02 - 2017/03 Visiting Scholar, the Council on East Asian Studies, Yale University
- 2012/04 - 2015/03 Associate Professor (without tenure), Waseda Institute for Advanced Studies
- 2009/04 - 2012/03 Assistant Professor, Faculty of Letters, Arts and Science, Waseda University School of Humanities and Social Sciences
- 2008/04 - 2009/04 Research Associate, Harvard-Yenching Institute
- 2006/04 - 2009/03 JSPS Research Fellow (PD), Japan Society for Promotion of Science, Toyo Bunko
- 2005/06 - 2006/06 Fellow, Setsutaro Kobayashi Memorial Fund
- 2003/09 - 2005/09 中国社会科学院研究生院高級進修生
- 2003/04 - 2005/03 JSPS Research Fellow (DC2), Japan Society for Promotion of Science, Waseda University
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The Japanese Association for Manchu and Qing Studies
, The Institute of Eastern Culture
, Association for Studies of Chinese Society and Culture
, The Chinese Society for Yüan Studies
, The Historical Society of Japan