
EXECUTIVE SUMMARY
The United States Jukendo Federation (USJF) is the official national governing body for the sports of Jukendo and Tankendo in the United States. The Federation is formally recognized by the All Japan Jukendo Federation and serves as a proud member of the International Jukendo Federation, ensuring the promotion, development, and regulation of these disciplines across the nation.
-
Promotion and Development
-
To promote and develop the disciplines of Jukendo and Tankendo throughout the United States at all levels, from grassroots to elite competition.
-
-
Recognition and Representation
-
To serve as the officially recognized national governing body of Jukendo and Tankendo in the United States, under the recognition of the All Japan Jukendo Federation and as a member of the International Jukendo Federation.
-
-
Standards and Regulations
-
To establish, uphold, and enforce the technical standards, rules, and regulations for the safe practice and fair competition of Jukendo and Tankendo in alignment with international standards.
-
-
Education and Training
-
To organize and certify instructor, coach, and referee education programs that ensure the highest levels of knowledge, safety, and integrity in the practice of Jukendo and Tankendo.
-
-
Events and Competitions
-
To plan, sanction, and oversee local, regional, and national Jukendo and Tankendo events, including seminars, championships, and demonstrations, and to support U.S. participation in international competitions.
-
-
Cultural Exchange
-
To preserve and promote the martial, cultural, and historical heritage of Jukendo and Tankendo as traditional Japanese martial arts, fostering cultural exchange between the United States and Japan.
-
-
Membership and Community
-
To establish and support member dojos, clubs, and practitioners across the country, fostering a strong, inclusive, and respectful Jukendo and Tankendo community.
-
-
Youth and Grassroots Development
-
To encourage youth participation by providing age-appropriate training, programs, and opportunities that nurture discipline, respect, and self-confidence.
-
-
Safeguarding and Integrity
-
To promote ethical conduct, safeguarding, and athlete well-being, ensuring a safe and positive environment free from abuse, discrimination, or misconduct.
-
-
Gender Equality and Empowerment
-
-
To actively promote gender equality and the empowerment of women in Jukendo and Tankendo, in partnership with Guardian Girls International (GGI), by creating inclusive programs, leadership opportunities, and training initiatives that prevent violence and expand access for women and girls.
-
-
International Cooperation
-
-
To maintain strong relationships with the All Japan Jukendo Federation, the International Jukendo Federation, and other national federations, advancing the global growth and recognition of Jukendo and Tankendo.
-
![]() |
Shin KoyamadaFounder and President Originally from Japan, Mr. Koyamada is an actor (The Last Samurai), producer, and philanthropist. With more than 30 years of martial arts experience, he began his training in Jukendo under the guidance of the All Japan Jukendo Federation at the Nippon Budokan. In 2025, he established the United States Jukendo Federation (USJF) with the support of the President of the All Japan Jukendo Federation. |
![]() |
Seiji MamiyaVice President Originally from Japan, Mr. Mamiya serves as the Vice President of the United States Jukendo Federation (USJF). A 7th Degree Black Belt in Kendo and instructor at the Gardena Kendo Club, he began his training in Jukendo under the guidance of the All Japan Jukendo Federation at the Nippon Budokan. Beyond his martial arts accomplishments, Mr. Mamiya is an experienced Information Technology Manager with over 30 years of leadership in infrastructure, application support, and security services. |

