Described as a "one punch artist" by some of his American students, Nakazato developed his karate sparring into "a fine fighting art".

[1]: 101  He gave many demonstrations in Japan as well as abroad and had "many well-known students in the USA", Nakazato was designated as an "intangible cultural asset holder" by Okinawa Prefecture in 2000.

[6] He first started karate training in 1935 under Seiichi Iju (a former student of Shinpan Shiroma) at Minato ward, Sakai City, Osaka, staying with him until 1940.

At the war's end, he returned to Okinawa to become a student of Chosin Chibana, whom he considered to be the "most eminent karate master of that time".

In the same year, Nakazato resumed bojutsu training, this time under Seiro Tonaki's teacher's son, Masami Chinen, with whom he stayed until 1958.