2011–present: University of Tsukuba, Faculty of Medicine, Professor 2010–2011: University of Tsukuba, Graduate School of Human Sciences, Professor 2008–2010: University of Tsukuba, Graduate School of Human Sciences, Professor 2008: University of Tsukuba, Graduate School of Human Sciences, Professor 2007: Gunma University, Graduate School of Medicine, Associate Professor 2006: Gunma University, Graduate School of Medicine, Assistant Professor 2004–2005: Gunma University, Graduate School of Medicine, Lecturer 2001–2003: Gunma University, Faculty of Medicine, Lecturer 1993–2000: Gunma University, Faculty of Medicine, Assistant