- 1997 - 2004 Osaka Institute of Technology Faculty of Information Science and Technology
- 1997 - 2004 Osaka Institute of Technology, Professor
- 1976 - 1997 Nagoya Institute of Technology Faculty of Engineering
- 1976 - 1997 Nagoya Institute of Technology, Professor
- 1975 - 1976 大阪大学大型計算機センター 助教授
- 1975 - 1976 Osaka University, Assistant Professor
- 1968 - 1975 Osaka University School of Engineering Science Direct Affiliates
- 1968 - 1975 Osaka University, Lecturer
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