1. Professor Emeritus, Hiroshima University; Director, Chugoku Rosai General Hospital
2. Assistant Professor, Department of Anesthesiology and Critical Care Medicine, Hiroshima University School of Medicine
3. Managing Director, Central Research Laboratories, Maruishi Pharmaceutical Co., Ltd.
4. Research Staff, Central Research Laboratories, Maruishi Pharmaceutical Co., Ltd.
5. Managing Director, Central Glass Co., Ltd.
6. Research Staff, Central Glass Co., Ltd.