|By Soke Takayuki Kubota Volume 4: Gosoku-Ryu Kata - Basic drills, kihon no kata, advanced gosoku-ryu kata and detailed explanation of the hidden fighting techniques in kata. 54 min. Soke Tak Kubota is a member of the Black Belt Hall of Fame and the founder and grandmaster of the International Karate Association. Soke Kubota's hybrid style of karate, judo and jujutsu techniques is a very powerful and practical self-defense system. Learn its techniques in this original 'Ancient Warrior Productions' five-part amazing DVD collection from the man who has trained some of the finest law-enforcement and military personnel in the world. 58 minutes.