Palo Alto Goshukan is a traditional Gojuryu school operated by Des Tuck Sensei, a California attorney who is a Japan-graded 7th degree black belt (6th degree JKF Gojukai) and who has trained in the Gojuryu style since 1970. He has been awarded the honor of Kyoshi.
Goshukan follows the brand originated by the late Shuji Tasaki Sensei, who was, for many years, chief instructor in the Tokyo dojo of the late Gogen Yamaguchi (The Cat) until he formed his own group, Seiwakai in 1972.
Tuck Sensei is the longest-training active student of the late Leo Lipinski Sensei (1946-2018) and travels annually to Japan for advanced training. Lipinski Sensei was the only non-Japanese ever awarded 8th Dan by the JKF Gojukai.