Background
He was bom in Tokyo on September 8,1893, in Tokyo, Japan, the first son of Shogoro and Nao Tsuboi. At that time, his father, Shogoro Tsuboi, was professor of anthropology in the Imperial University of Tokyo.
誠太郎 坪井
He was bom in Tokyo on September 8,1893, in Tokyo, Japan, the first son of Shogoro and Nao Tsuboi. At that time, his father, Shogoro Tsuboi, was professor of anthropology in the Imperial University of Tokyo.
In 1914 Seitaro Tsuboi matriculated in the Imperial University of Tokyo to study geology under Bundjiro Koto (petrologist) and Matajiro Yokoyama (paleontologist). Tsuboi specialized in petrology under the supervision of KotoGraduated from Tokyo University (1917).
In 1917 Seitaro Tsuboi graduated from the Imperial University with a bachelor’s degree and became an assistant to the two professors. He was promoted to associate professor in 1921 in the same university and then succeeded Koto. He received a Doctor of Science degree from the University of Tokyo in 1926. He was promoted to full professor in 1928 and taught optical mineralogy and igneous petrology.
In 1921-1923, Tsuboi was sent abroad by the Ministry of Education. During this period, he stayed mainly in the geophysical laboratory of the Carnegie Institution of Washington, and in the mineralogy laboratory of the University of Cambridge in England. He retired from the University of Tokyo in 1954 and was granted the title of professor emeritus. He was director of the Thermal Spring Research Institute of Okayama University in western Japan from 1954 to 1959. In addition, he was director of the Tokyo Science Museum from 1939 to 1945.