Masutatsu Oyama studied Shotokan Karate by Myint Kywe 先生

Masutatsu  Oyama studied Shotokan Karate

空手先生 Myint Kywe
ဆိုရွိကိ ကရာေတးအသင္း နည္းျပခ်ဳပ္ 
ဦးျမင့္ၾကြယ္ ( ၿမိဳ ႔မ ျမင့္ၾကြယ္ )
首席先生  Soshiki Karate (松濤館 空手)

Masutatsu  Oyama surely learn not only 剛柔流 GOJURYU karate but also 松濤館流 SHOTOKAN karate.
In 1938, at the age of fifteen years old, Mas Oyama became a student of 船越 義珍 最高首席師範 Gichin Funakoshi, founder of Shotokan Karate and father of JKA , at the Takushoku University.

Funakoshi Gichin, a school teacher from Okinawa, was credited with introducing karate from Okinawa to Tokyo, Japan. It is this master that Mas Oyama later would refer to as his true karate teacher. Throughout the years Oyama always spoke highly of Funakoshi, remarking in later recollections of his gentle yet overwhelming presence. Mas Oyama went on to say that of the many things he learned from Funakoshi, kata (formal exercises) was the most important.  Mas Oyama's training progressed so rapidly that by the age of 17, he was a Nidan 二段 (2nd Dan), and by the age of 20, he was a Yondan 四段 (4th Dan) in Shōtōkan 松濤館流

Sosai Masutatsu Oyama (大山 倍達), was a famous karate master who founded Kyokushin Karate, considered the first and most influential style of full contact karate. Oyama contacted the Shotokan dojo (Karate school) operated by Gigō Funakoshi, son of karate master and studied Shotokan karate from Gichin Funakoshi.

Mas Oyama, 1963, “What is Karate”, Japan Publications Trading Company