Tsutomu Ohshima (大島 劼, Ōshima Tsutomu; born August 6, 1930)[a] is a prominent Japanese master of Shotokan karate who founded the organization Shotokan Karate of America (SKA). He is the Shihan (Chief Instructor) of the SKA, and to this day holds the rank of 5th dan, which was awarded to him by Gichin Funakoshi. Ohshima's branch of the Shotokan world has become known as “Shotokan Ohshima Karate-do.”
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