"Indian forms of yoga have spread throughout the world due to their objectives of promoting health and harmony. Japan is but one of many countries that have received these age-old teachings. While Indian yogic disciplines (Hatha yoga in particular) have become well known, not everyone realizes that certain distinctive Japanese versions of Indian spiritual paths have evolved. Perhaps the first of these unique methodologies is the art of Shin-shin-toitsu-do, which was developed by Nakamura Tempu Sensei (1876-1968). In fact, Nakamura Sensei is often considered to be the father of yoga in Japan."
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Source : "Japanese Yoga: The Way of Dynamic Meditation". Book by H.E.Davey, 2001.