- 2020/04 - 現在 Tokyo City University Faculty of Science and Engineering, Drpartment of natural sciences associate professor
- 2007/02 - 現在 The Open University of Japan Faculty of Liberal Arts
- 2009/04 - 2020/03 Tokyo City University Faculty of Knowledge Engineering, Department of Natural Sciences associate professor
- 2013/07 - 2014/02 The University of Tokyo Faculty of Science, Department of Earth and Planetary Environmental Science
- 2010/04 - 2011/09 Tokyo Gakugei University Faculty of Education
- 2008/04 - 2009/03 武蔵工業大学知識工学部化学部門 准教授
- 2009 - Apr 2009 - Associate Professor Earth Science, Department of Natural Sciences, Faculty of Knowledge Engineering, Tokyo City University
- 2008/04 - 2008/09 Tokyo Gakugei University Faculty of Education
- 2007/04 - 2008/03 武蔵工業大学知識工学部化学部門 講師
- 2003/04 - 2007/03 武蔵工業大学工学部教育研究センター 講師
- 2001/02 - 2006/03 The University of Tokyo College of Arts and Sciences
- 2001/03 - 2005/06 Wing Investment Advisor
- 2001/04 - 2003/03 武蔵工業大学工学部教育研究センター 非常勤講師
- 1998/02 - 2002/03 Japan Broadcasting Corporation School Program Division Advisor
- 1993/04 - 2001/03 学校法人巣鴨学園 巣鴨中学校・高等学校 理科 非常勤講師
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