National Institute, Institution of Health, Tokyo, 1955-1961, Doctor of Philosophy Epidemiology of Respiratory Infections. Spoken languages: Japanese, English.
Medical officer infectious disease control progressive Ministry Health and Welfare, Japan, 1950. With Africa regional office World Health Organization, 1962, with headquarters Geneva, 1964, with intensified smallpox eradication progressive, 1967—1977, chief intensified smallpox eradication progressive, 1977—1984. Director Kumamoto National Hospital, 1985.
Vice chairman Agency Cooperation in International Health, 1992—1993, chairman, since 1993. Chairman technical advisory group on expanded progressive on immunization and poliomyelitis eradication in western Pacific region World Health Organization.