- 2017 - 現在 NPO法人ワーカーズネットかわさき 代表理事
- 2011 - 現在 School of Economics, Senshu University Professor
- 1999 - 現在 Oohara Institute of Social Research, Hosei University Researcher
- 2010 - 2012 School of Culture, Media and Society, Waseda University Adjunct Professor
- 2011 - 2011 Faculty of Human Development, Kobe University Adjunct Professor
- 2007 - 2011 School of Economics, Senshu University Associate Professor
- 2008 - 2009 Reischauer Institute of Japanese Studies, Harvard University Visiting Scholar
- 2003 - 2007 School of Economics, Senshu University Associate Professor
- 2004 - 2005 School of Economics, Aoyama Gakuin University Adjunct Professor
- 2002 - 2003 Center for Internastional Research on the Japanese Economy,Faculty of Economics,The University of Tokyo Visiting Professor
- 2000 - 2003 School of Economics, Senshu University Assistant Professor
- 1999 - 2000 School of Law, Kitakyushu University Adjunct Professor
- 1999 - 2000 Shimonoseki City University Adjunct Professor
- 1999 - 2000 Saga Women's Junior College Adjunct Professor
- 1999 - 2000 Venture Business Laboratory Research Fellow
- 1997 - 1999 School of Law Research Assistant
- 1995 - 1996 Fukuoka Women's Junior College Adjunct Professor
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