Kenichi Yamamoto (山本健一, Yamamoto Kenichi; 16 September 1922 – 20 December 2017) was a Japanese mechanical engineer and business executive. He supervised the development of the Mazda Wankel rotary combustion engine, and served as Mazda's President (1984–1987) and Chairman (1987–1992).
Source: “Kenichi Yamamoto (engineer)”, English Wikipedia (CC BY-SA 4.0), excerpt