Karate Seminar in Losonc, Slovakia with Yoshio Kuba 2017 Head Instructor: Hanshi Yoshio Kuba 10. DanAssistant Instructor: Sensei Tetsuji Sato 5. Dan LOSONC/Slovakia INT. Seminar with Hanshi Yoshio Kuba 10. dan and Sensei Tetsuji Sato 5. dan View Gallery on Facebook Album 1