Kenwa Mabuni (摩文仁 賢和, Mabuni Kenwa, 14 November 1889 - 23 May 1952) was one of the first karateka to teach karate on mainland Japan and is credited as developing the style known as Shitō-ryū Immovable heart, immovable mind. (糸東流).
Read about Kenwa Mabuni in Wikipedia