- 2015/04 - 現在 Aoyama Gakuin University College of Literature Department of English Professor
- 2014/01 - 2015/03 ACLS/SSRC/NEH 専任講師
- 2014/01 - 2015/03 Lecturer
- 2012/08 - 2013/12 The College of William & Mary 准教授
- 2012/08 - 2013/12 Associate Professor
- 2009/08 - 2011/06 Washington and Lee University 准教授
- 2009/08 - 2011/06 Associate Professor
- 2005/04 - 2009/08 University of Tokyo 助教授
- 2005/04 - 2009/08 Associate Professor
- 2006/04 - 2008/03 Keio University 非常勤講師
- 2006/04 - 2008/03 Lecturer
- 2002/04 - 2005/03 Osaka University 専任講師
- 2002/04 - 2005/03 Lecturer
- 2001/08 - 2001/12 University of California,Berkeley 非常勤講師
- 2001/08 - 2001/12 Lecturer
- 2000/08 - 2001/05 Academy of Our Lady of Guam High School 非常勤講師
- 2000/08 - 2001/05 Lecturer
- 1995/08 - 1999/12 University of California,Berkeley
- 1995/08 - 1999/12 University of California,Berkeley Teaching Assistant/Instructor of Record
- 1993/09 - 1999/06 Fuji Bank,Ltd.
- 1993/09 - 1999/06 Fuji Bank,Ltd. International Division,Translator
- 1993/09 - 1995/06 Kodansha International Publishers
- 1993/09 - 1995/06 Kodansha International Publishers Free-lance assistant to the editor
- 1990/08 - 1991/06 University of California,Berkeley
- 1990/08 - 1991/06 University of California,Berkeley Reader/Teaching Assistant
- 1988/01 - 1988/06 World Wildlife Federation
- 1988/01 - 1988/06 McNeil-Lehrer NewsHour
- 1988/01 - 1988/06 World Wildlife Federation editorial intern (Full-time,temporary,paid)
- 1988/01 - 1988/06 McNeil-Lehrer NewsHour PBS TV news intern(Full-time,temporary,unpaid )