

In 1975, The First World Full Contact Karate Open Championships were held in Tokyo. All-Japan Championships have been held at every year. In 1969, Oyama staged The First All-Japan Full Contact Karate Open Championships and Terutomo Yamazaki became the first champion. Kyokushin also sought to develop a close connection with VIPs and celebrities, focusing on a mass media strategy to increase fans and gain students. Many students, including Steve Arneil, Jon Bluming, and Howard Collins, traveled to Japan to train with Oyama directly. Oyama also sent instructors to other countries such as the Netherlands ( Kenji Kurosaki), Australia (Mamoru Kaneko and Shigeo Kato), the United States ( Miyuki Miura, Tadashi Nakamura, Shigeru Oyama and Yasuhiko Oyama), Great Britain ( Steve Arneil), Canada (Tatsuji Nakamura) and Brazil ( Seiji Isobe) to spread Kyokushin in the same way. Kyokushin sought to expand it's presence with contact with other martial arts disciples, interaction with other groups, matches, assimiliation of martial arts technique. After that, word of mouth would spread through the local area until the dojo had a dedicated core of students.

The instructor would move to that town and demonstrate his karate skills in public places. Oyama would choose an instructor to open a new dojo. Oyama hand-picked instructors who displayed ability in marketing the style and gaining new members. In addition to the people who provided financial support for the construction, Tadashi Nakamura testified that "Kenji Kurosaki's teacher has contributed very much." In June of the same year, the headquarters dojo (later the general headquarters) was completed in Nishiikebukuro, Toshima-ku, Tokyo. Oyama directed the organization through a period of expansion. Upon formation, Eisaku Sato acted as chairman and Matsuhei Mori as the vice chairman, with Oyama as the director (later president). In April 1964, Mas Oyama established the Kyokushin Kaikan of the International Karatedo Federation under the umbrella of the Kyokushin Scholarship Foundation. Previously this institution was known as the Oyama Dojo. Kyokushin Kaikan is the martial arts organization founded in 1964 by Korean-Japanese Masutatsu Oyama ( 大山倍達, Ōyama Masutatsu), officially the International Karate Organization. It is a style of stand-up fighting and is rooted in a philosophy of self-improvement, discipline and hard training. Kyokushin ( 極真) is a full-contact martial art, school of Karate originating from Japan. Kudo, Ashihara, Enshin, Seidokaikan, Shidokan, Satojuku, Seiwakai, Shindenkai, Seidō juku Gōjū-ryū, Shotokan, Bōgutsuki Karate ( Kanbukan), ( Learn how and when to remove this template message) Such statements should be clarified or removed.

This article contains weasel words: vague phrasing that often accompanies biased or unverifiable information.
