Background
Seiichi Yamanaka was born in 1892 in Aichi Prefecture, Japan.
清一 山中
Seiichi Yamanaka was born in 1892 in Aichi Prefecture, Japan.
Seiichi Yamanaka graduated from Teishin Kanri Yoseijo (Communications Officials' Training Institute) (1912).
Seiichi Yamanaka served with Toyota Spinning Company and Toyota Jido Shokki Seisakujo (Toyota Automatic Weaving Machinery Plant). Entered Toyota Motorcar Industry Company (1937) and became director of its General Affairs Department and Labor Department (1945), auditor and then director. Later was reappointed auditor (1951). Held additional post of president of Koromo Chamber of Commerce & Industry.