Background
Hidekane Oka was born in 1886 in Fukushima, Japan.
Hidekane Oka was born in 1886 in Fukushima, Japan.
He attended Law Department of Chuo University.
Hidekane Oka was president of Tomioka Kogyo Kaisha (Industrial Company) and Chosen Riken Koku Kikai Kaisha (Korea Aeronautical Machinery Company affiliated with Physical & Chemical Research Institute) and director of several other companies and thereafter became president of Riken Densen Kaisha (Electric Wire Company affiliated with Physical & Chemical Research Institute) and chairman of Riken Corrundum Company (since 1953). Held additional posts of director of Chiyoda Soko Kaisha (Warehouse Company) and auditor of (lkida Natural Gas Company.