Date of Birth: 
About Tsutomu Ohshima
- Tsutomu Ohshima (?? ?, Oshima Tsutomu, born August 6, 1930) is a prominent Japanese master of Shotokan karate who founded the Shotokan Karate of America (SKA) organization.
- He is the Shihan (Chief Instructor) of the SKA, and to this day holds the rank of 5th dan in karate, which was awarded to him by Gichin Funakoshi.
- In 1957, he established the Caltech Karate Club - the first university karate club in the United States of America.
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