- 2007/05/01 - 2022/03/31 College of Economics College of Economics Professor
- 1996/04 - 2016/03 日本基督教団石神井教会 担任教師
- 1999/04/01 - 2007/04/30 College of Science and Engineering College of Science and Engineering Professor
- 1996/04/01 - 1999/03/31 College of Science and Engineering College of Science and Engineering
- 1988/04/01 - 1996/03/31 Lecturer
- 1984/04 - 1996/03 日本基督教団 石神井教会主任担任教師
- 1990/04/01 - 1991/03/31 Lecturer
- 1981/04/01 - 1984/03/31 日本基督教団 阿佐ヶ谷教会担任教師
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