- 1995 - 2004 Hiroshima University Faculty of Economics
- 1995 - 2004 Hiroshima University, Faculty of Economics, Professor
- 2004 - - 広島大学大学院社会科学研究科 教授
- 2004 - - Hiroshima University, Graduate School of Social Sciences, Professor
- 1989 - 1995 Hiroshima University Faculty of Economics
- 1989 - 1995 Hiroshima University, Faculty of Economics, Associate Professor
- 1987 - 1989 Hiroshima University Faculty of Economics
- 1987 - 1989 Hiroshima University, Faculty of Economics, Lecturer
- 1985 - 1987 Kindai University Junior College Division
- 1985 - 1987 Junior College of Kinki University, Lecturer
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