- 2023/04 - 現在 Chuo University Professor Emeritus
- 2000/04 - 2023/03 中央大学 文学部 教授
- 2022/04/01 - 2022/09/30 東京大学 教養学部 非常勤講師
- 2021/04/01 - 2021/09/30 東京大学 教養学部 非常勤講師
- 2018/01/01 - 2020/12/31 Shaanxi Normal University Northhwest Institute of Historical Environment and Socio-Economic Development Visiting Professor
- 2018/01 - 2020/12 Shaanxi Normal University Northhwest Institute of Historical Environment and Socio-Economic Development,Visiting Professor
- 2018/01/16 - 2018/03/31 Shaanxi Normal University Northhwest Institute of Historical Environment and Socio-Economic Development Visiting scholar
- 2017/10/01 - 2017/12/31 北京大學 IACS國際漢學家研修基地大雅堂 訪問学者
- 2017/06/05 - 2017/06/13 Zhejiang University School of Humanities Visiting Scholar
- 2015/10/01 - 2016/03/31 Ibaraki University College of Education Lecturer
- 2014/08/01 - 2014/10/31 National Taiwan University Department of Chinese Literature Visiting Professor
- 2012/04/01 - 2014/03/31 Kokugakuin University Graduate School of Letters Lecturer
- 2010/04/01 - 2014/03/31 Waseda University School of Humanities and Social sciences Lecturer
- 2014/01/05 - 2014/01/20 National Tsing Hua University Institute of History Visiting Professor
- 1989/04 - 2012/03 The University of Tokyo Institute of Oriental Culture Co-researcher
- 2012/01/02 - 2012/01/15 National Taiwan Normal University College of Liberal Arts Visiting Professor
- 2010/09/01 - 2011/03/31 Kyoto University Graduate school of letters, Faculty of Letters Lecturer
- 2009/05/21 - 2010/03/31 University of Cambridge Faculty of Asian and Middle Eastern Studies Visiting Professor
- 2009/10/01 - 2009/12/31 University of Cambridge, St. John's College Visiting Professor
- 2006/04/01 - 2009/03/31 Waseda University School of Humanities and Social sciences Lecturer
- 2003/04/01 - 2009/03/31 Aoyama Gakuin University College of Literature Lecturer
- 2001/04/01 - 2009/03/31 Yokohama City University Graduate School of Urban Social and Cultural Studies Lecturer
- 2007/04/01 - 2008/03/31 International Research Center for Japanese Studies Co-researcher
- 2007/04/01 - 2008/03/31 Japan Women's University Graduate School of Humanities Lecturer
- 2005/04/01 - 2008/03/31 National Museum of Ethnology Co-researcher
- 2007/04/01 - "Archaeological Institute of Kashihara, Nara prefecture" Co-researcher
- 2005/04/01 - 2006/09/30 Osaka City University "Graduate school of Literature and Human Science," Lecturer
- 2005/04/01 - 2006/09/30 Osaka City University Graduate school of Literature and Human Science, Lecturer
- 2005/05/23 - 2005/05/31 Beijing Normal University School of History Visiting Professor
- 2004/04/01 - 2005/03/31 Keio University Graduate School of Letters "Lecturer,"
- 2004/04/01 - 2004/09/30 Osaka University Graduate School of Letters Lecturer
- 2003/04/01 - 2004/03/31 Aichi University Graduate Programs Department of Chinese Studies Lecturer
- 2002/04/01 - 2002/09/30 Yamaguchi University "Faculty of Humanities, Graduate School of Humanities and Social Studies" Lecturer
- 2001/10/01 - 2002/03/31 Ibaraki University College of Education Lecturer
- 2000/10/01 - 2001/03/31 Kokugakuin University Graduate School of Letters Lecturer
- 2000/04/01 - 2001/03/31 Keio University Faculty of Letters Lecturer
- 1999/04/01 - 2000/03/31 University of Tokyo Faculty of Letters Lecturer
- 1989/10/01 - 2000/03/31 University of Tsukuba Department of History and Anthropology Associate Professor
- 1999/11/01 - 1999/11/09 Peking University Department of History Visiting Scholar
- 1999/04/01 - 1999/09/30 Kyushu University "Faculty of Letters, Graduate School of Letters" Lecturer
- 1998/10/01 - 1999/03/31 Tohoku University "Faculty of Letters, Graduate School of Letters" Lecturer
- 1997/10/01 - 1998/03/31 Ibaraki University Faculty of Humanities Lecturer
- 1996/10/01 - 1997/03/31 Shizuoka University Faculty of Humanities Lecturer
- 1997/01 - Toyo Bunko Research Fellow
- 1995/10/01 - 1996/03/31 Fukushima University Faculty of Education Lecturer
- 1995/04/01 - 1996/03/31 Chuo University "Faculty of Letters, Graduate school of Letters" Lecturer
- 1995/12 - Shaanxi Normal University "Visiting Professor,"
- 1994/04/01 - 1994/09/30 Bukkyo University School of Literature Lecturer
- 1994/04/01 - 1994/09/30 Osaka University "School of Letters, Graduate School of Letters" Lecturer
- 1991/07 - 1992/08 Harvard University Yanjing Institute Visiting Scholar
- 1990/10/01 - 1991/03/31 University of Yamanashi Faculty of Education Lecturer
- 1990/04/01 - 1991/03/31 Ritsumeikan University Faculty of Letters Lecturer
- 1986/10/01 - 1989/09/30 Hokkaido University of Education Faculty of Education Kushiro Campus "Associate Professor,"
- 1988/10/01 - 1989/03/31 Hokkaido University Faculty of Letters Lecturer
- 1984/04/01 - 1986/09/30 Hokkaido University of Education Faculty of Education Kushiro Campus "Lecturer,"
- 1983/04/01 - 1984/03 "Hokkaido University of Education," Faculty of Education Kushiro Campus "Research Associate,"
