During the summer, he made contacts in Japan, and, with help from his aunt, sailed for Yokohama, where he arrived on September 23. Shortly afterwards he moved to Tokyo, and, on October 9, registered at the Kodokan Institute, the country’s most prestigious judo center. He spent fifteen months in Japan, dividing his time between the Institute and the French lessons which he gave to American and Japanese students. During his stay, he wrote a book on judo in the hope of importing the mindset and techniques of the Japanese Katas into Europe. In 1953, Yves canceled his affiliation with the Rosicrucian Society in Oceanside.
Shortly after his return, he obtained the fourth dan in judo and thus reached the highest European level.
thus
reached