- 2002 - Aichi Cancer Center, Research Institute
- 2001 - Aichi Cancer Center, Research Institute
- 2001 - Director, Aichi Cancer Center Research Institute
- 1990 - Aichi Cancer Center, Research Institute
- 1990 - Vice Director, Aichi Cancer Center Research Institute
- 1985 - Aichi Cancer Center, Research Institute
- 1985 - Chief, Division of Immunology, Aichi Cancer Center
- 1982 - Aichi Cancer Center, Research Institute
- 1982 - Chief, Laboratory of Cell Biology, Aichi Cancer Center
- 1978 - Aichi Cancer Center, Research Institute
- 1978 - Section Chief, Laboratory of Experimental Pathology,
- 1973 - 米国スローンケタリング癌研究所 リサーチアソシエイト
- 1973 - Research Associate, Memorial Sloan-Kettering ,
- Research Institute
- Aichi Cancer Center Research Institute