1. Chief Researcher, R&D Institute, Takenaka Corporation, Dr.Eng.
2. Senior Research Engineer, Building Research Institute, Dr.Eng.
3. Building Design Department, Tokyo Main Office, Takenaka Corporation, Dr.Eng.
4. Daiwahouse Industry, Dr.Eng.
5. Kozo Keikaku Engineering Inc., Dr.Eng.
6. Associate Chief Researcher, R&D Institute, Takenaka Corporation, M.Eng.
7. Prof., Dept. of Architecture and Building Eng., Kanagawa Univ., Dr.Eng.
8. Research Assoc., Dept. of Architecture and Building Eng., Kanagawa Univ., M.Eng.