1957 आव अशिमाया गावनि गदान (बाथि दिग्रि ब्लेक बेल्ट) खौ मोन्नो हायो, जाय फुनाकशिनि दारै होनाय गोजौसिन रोंकमोन।
In 1957, Ohshima received his Godan (fifth-degree black belt), the highest rank awarded by Funakoshi.