Koishikawa Jin

Koishikawa Jin currently serves as President of the JKazama Foundation since September 2014 and holds the title of NINKYO-kai kan karate kancho at Ninkyo-kaikan since June 2013. Additionally, Koishikawa has been a master builder at Miura Golf since April 2013, recognized as one of the few master custom club builders in the USA, with a commitment to providing golfers of all levels with tailor-made clubs that prioritize their health. Koishikawa is an alumnus of Leiden University.