Miyazaki was a former instructor of the Long Island University Karate Instructor's Certification program. He is currently Head of the International Shotokai Federation. He retired from teaching and closed the Tokutai dojo in 2004 due to illness. In 2010 and early 2011 he could be found visiting the daytime classes at the Shotojuku dojo in Astoria, Queens. In mid-2011 he decided to return to teaching. His dojo is now called Shotokai USA and is located in Bayside, Queens, NYC. In 2016 Mr. Miyazaki retired again and returned to Japan, where he currently resides.