Nihon Jujutsu — Fitness. Focus. Practical, effective self-defense. Created by Sato Shizuya Sensei based on his training with some of the greatest Japanese martial artists of the 20th Century, Nihon Jujutsu is a modern synthesis of practical, efficient techniques as originally found in both ancient and contemporary martial arts. Its principles and techniques derive from Japanese unarmed combat and self-defense techniques from pre-1945 judo and aikibujutsu, as well as taihojutsu (Japanese police i