Bachelor of Science, Tokyo Bunrika University, 1945. Doctor of Science, Tokyo Bunrika University, 1961.
Assistant professor, Gunma U., Maebashi, Japan, 1949-1950; associate professor, Gunma U., 1950-1964; professor physics, Gunma U., 1964-1987; dean, Gunma U., 1978-1982; professor emeritus, Gunma U., since 1987; professor, Takasaki Art Center College, Yoshii, Japan, since 1988.
Member Physical Society Japan, Chemical Society Japan, Biophysics Society Japan, Society Polymer Science Japan.
Married Ihori Kiyono, December 28, 1931. Children: Hironao, Yurika.