- 1989 - 2012 Bunka Gakuen University, Instructor, Associate Professor, Professor (retired)
- 1989 - 2012 Bunka Gakuen University
- 1981 - 1991 ミネソタ大学ユダヤ研究科,ミネソタ州ユダヤ移民歴史調査会,
- 1981 - 1991 Project to Document Jewish Settlers in Minnesota, Program
- 1987 - 1989 Waseda University
- 1987 - 1989 Waseda University, Visiting Instructor
- 1981 - 1987 ミネソタ州立メトロポリタン大学 非常勤講師
- 1981 - 1987 Metropolitan State University, Adjunct Faculty
- 1979 - 1987 ミネソタ大学,ティーチングアソシエート
- 1979 - 1987 University of Minnesota, Teaching Associate
- リサーチャー,アドミニストレーター
- Administrator
- in Jewish Studies, University of Minnesota, Researcher,
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