Masutatsu Oyama, more commonly known as Mas Oyama, was a karate master who founded Kyokushin Karate, considered the first and most influential style of full contact karate. Wikipedia

Born: July 27, 1923, Gimje, South Korea

Died: April 26, 1994, Tokyo, Japan

Martial Art: Kyukushin Karate

Notable Students: Shokei Matsui, Steve Arneil, Hideyuki Ashihara

Teacher: Gichin Funakoshi, Gōgen Yamaguchi