Bachelor Engineering, Tokyo Imperial University, 1946. Bachelor of Science, University Tokyo, 1950. Doctor of Science, University Tokyo, 1961.
Master of Science, University of California at Los Angeles, 1953. Doctor of Philosophy, University of California at Los Angeles, 1955.
Associate department geology, U. Tokyo, 1951-1956;
lecturer, U. Tokyo, 1956-1958;
associate professor, U. Tokyo, 1958-1962;
professor Ocean Research Institute, U. Tokyo, 1962-1984;
director, U. Tokyo, 1968-1972, 80-84;
professor emeritus, U. Tokyo, since 1984;
professor, University of the Air, Chiba., Japan, 1984-1994. Professor emeritus Quintao (China) U. Oceanology, 1985. Research emeritus First National Institute Oceanology, Quintao, 1985.
Japanese representative Intergovtl. Oceanographic Commission, United Nations Educational, Scientific and Cultural Organization, Paris, 1975-1984, International Phase of OceanDrilling Deep Sea Drilling Project, Washington, 1975-1984. Leader 1st Cruise of World Youth, Japanese Government, Tokyo, 1989.
Chairman Council for Ocean Development, Japanese Government, since 1988.
Married Kyoko Nosaka, April 22, 1957.