Background
Kohga, Tetsuyoshi was born on November 26, 1945 in Tienching, China. Arrived in Japan, 1946. Son of Yoshio and Fusako (Shimakura) Kohga.
Kohga, Tetsuyoshi was born on November 26, 1945 in Tienching, China. Arrived in Japan, 1946. Son of Yoshio and Fusako (Shimakura) Kohga.
Bachelor in Engineering, Yokohama (Japan) National University, 1970. Master in Engineering, Yokohama (Japan) National University, 1972.
Researcher Control Laboratory, Sumitomo Metal Mining Limited company, Ichikawa, Japan, 1972-1977; researcher Niihama Research Laboratory, Sumitomo Metal Mining Limited company, Niihama, Japan, 1977-1978; superintendent nickel refinery, Sumitomo Metal Mining Limited company, Niihama, 1978-1983; manager technical section and quality assurance section, Sumitomo Metal Mining Limited company, Niihama, 1983-1989; from manager to deputy general manager administrative department, Sumitomo Metal Mining Limited company, Tokyo, 1989-1996; general manager, Hyuga (Japan) Smelting Limited company, 1996-1997; managing director, Hyuga (Japan) Smelting Limited company, since 1997. Member committee for recovery of valuable metals from deep ocean minerals, Tokyo, 1994-1996. Part-time lecturer Tokyo U., 1995.
Member Mining and Materials Processing Institute of Japan.
Married Machiko Tai, April 3, 1976. Children: Mariko, Hiroaki, Akiko.