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KWF JAPAN
& CHINA

OFFICIAL HUB

OFFICIAL BRANCH

Inheriting Tradition, Connecting the World.
The Gateway to the Birthplace of Kyokushin.

Kyokushin Training

ABOUT KWF
JAPAN & CHINA

In January 2025, KWF Japan representation was officially assumed by the Kyokushin Hamai Group under the leadership of Shihan Mika Hamai — 5th Dan, former Japan National Team member, and competitor at the 2002 KWF World Championship.

KWF Japan & China now serves as the official bridge between the birthplace of Kyokushin and the global Kyokushin World Federation — connecting international fighters with authentic Japanese competition, and opening KWF's global tournament network to Japanese practitioners.

LEADERSHIP

Shihan Mika Hamai, KWF Japan & China Representative
MIKA HAMAI
Representative
KWF Japan Representative
KWF China Representative

Mika Hamai, 5th Dan, serves as Representative for both KWF Japan and KWF China. A former member of the Japan National Team and World Championship competitor, she took over as Representative of Kyokushin Hamai Group — founded by her late father, Shihan Noriyasu Hamai — and in 2016 established the Tokyo headquarters dojo, building one of Japan's most active Kyokushin organizations.

Following the passing of Shihan Noriyasu Hamai in December 2023, she oversees KWF operations across both Japan and China, carrying forward his vision of expanding authentic Kyokushin globally.

THE LEGACY OF
SHIHAN NORIYASU
HAMAI

Shihan Noriyasu Hamai (February 15, 1954 – December 14, 2023) was a 9th Dan Kyokushin master, direct student of Sosai Mas Oyama, and one of the most influential figures in the global expansion of Kyokushin karate.

Entering the Kyokushin Honbu Dojo in Ikebukuro in 1972, he rose to become one of Japan's elite competitors — placing 6th at the 5th All-Japan Championship and 4th at the 9th All-Japan Championship. As a coach, he was renowned as a master trainer, producing world-class fighters including All-Japan and World Championship contenders Toshio Mizuguchi and Akira Masuda.

In 2007, he established KWF China, opening a dojo in Dalian and ultimately building a network of five permanent dojos across China, including Beijing. In 2016, he organized the 1st Mas Oyama Cup China Kyokushin Full-Contact Karate Championship in Dalian — drawing competitors from across the world.

His vision of connecting Japan with the global Kyokushin community lives on through the unified leadership of KWF Japan and KWF China under his daughter, Shihan Mika Hamai.

Sosai Mas Oyama and Shihan Noriyasu Hamai
Shihan Noriyasu Hamai (right) with Sosai Mas Oyama and Shihan Yoshiaki Hamai

Shihan Noriyasu Hamai (right) with Sosai Mas Oyama and Shihan Yoshiaki Hamai

GLOBAL BRIDGE

Connecting international fighters with Japanese tournaments and providing Japanese practitioners access to global KWF competitions.

INBOUND

Promoting prestigious Japanese tournaments—such as the Hokushinetsu Championship—to international fighters seeking authentic competition in the birthplace of Kyokushin.

  • ▸Tournament registration assistance
  • ▸Visa and travel coordination
  • ▸Cultural and logistical support
JAPANESE KYOKUSHIN NETWORK →

OUTBOUND

Providing Japanese practitioners with comprehensive information and support for participating in international KWF tournaments worldwide.

  • ▸Global tournament calendar
  • ▸International competition guidelines
  • ▸Cross-border coordination
Hokushinetsu Kyokushin Championship

OFFICIAL AFFILIATION

KWF Japan & China operates under the official umbrella of the Kyokushin World Federation and is hosted by the Kyokushin Hamai Group.

CONTACT & INQUIRY

For international branch chiefs, athletes, and organizations interested in participation, affiliation, or collaboration inquiries. Please contact KWF Japan & China Secretariat at kwf.japan.sg@gmail.com

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