Background
Otsuka Seishi was born in Okayama Prefecture, 1905.
Otsuka Seishi was born in Okayama Prefecture, 1905.
He graduated from Tokyo University Faculty of Engineering (1927).
Appointed chief of Hamamatsu Engineering and Mechanical Division of Nagoya Railway Bureau (1943) and has been director of Railway Technique Research Institute of Transportation Ministry (since 1949).
Elected member of Japan Science Council (1950).