Title
- Emeritus Prof., The University of Tokyo
- Honorary member and Fellow, JSME (Japan Society of Mechanical Engineers)
- Honorary member, SAEJ (Society of Automotive Engineers of Japan)
- Fellow, JFES (Japan Federation of Engineering Societies)
Academic/Social Contribution
- President, Japan Society of Mechanical Engineers
- Trustee, Japan Federation of Engineering Societies
- Trustee, Society of Automotive Engineers of Japan
- Board man, Gas Turbine Society of Japan
- Chairman, the International Steering Committee of Asia Pacific Vibration Conference
- Member, Atmosphere / Vibration Noise Subcommittee, Central Environmental Council of Japan
- Collaborative Member, Science Council of Japan