- - 2005 Tama University
- - 2005 Tama University Graduate School, Division of Economic Information Phd. Program
- - 1994 Northwestern University Kellogg Graduate School 経営管理研究科 Master of Business Administration MBA
- - 1994 Northwestern University Kellogg Graduate School Graduate School, Division of Business Administration Master of Business Administration MBA
- - 1987 The University of Michigan 工学系研究科 Thermal Engineering
- - 1987 The University of Michigan Graduate School, Division of Engineering Thermal Engineering
- - 1981 Keio University
- - 1981 Keio University Graduate School, Division of Engineering
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