World Seido Karate Organization

Kaicho Nidame

Nidame Bo

Thousand Waves Martial Arts & Self-Defense Center operates as an official licensed branch school of the World Seido Karate Organization. World Seido is a large international martial arts organization run by Kaicho Tadashi Nakamura (9th dan) from the headquarters (Honbu) in New York City. The Vice-Chairman of the organization is his son, Nidaime Akira Nakamura.

Seido History

Seido karate is a relatively new system, created in 1976. Prior to that time, Kaicho had been affiliated with the Kyokushinkai karate organization headed by the legendary martial arts master, Masatatsu Oyama. Kaicho first became a student of Oyama as a teenager, and through years of dedicated training and teaching, rose to the rank of 7th dan and served as chief instructor at the Kyokushinkai Honbu in Tokyo.

In 1966, Kaicho was sent to New York in order to open his own dojo and to oversee the development of Kyokushinkai Karate throughout North America. After ten years of serving as the North American chairman of Mas Oyama’s organization, Kaicho made the difficult decision to leave his teacher and start his own karate system, Seido Karate.

For a full discussion of Seido’s early history, please consult Kaicho’s autobiography, The Human Face of Karate. This fascinating account explains many of the complex issues within the worldwide Kyokushinkai organization that created a wedge between Kaicho and Mas Oyama. It also makes clear how Kaicho came to formulate his own unique concept of karate-do based on a blend of Zen philosophy and the ethical principles of samurai culture in Japan.

The Seido Insignia

The plum blossom is Kaicho Nakamura’s family emblem. The three circles signify love, respect and obedience. The characters on the chest patch translate as “Seido Juku.” “Sei” means truth, honesty and sincerity; “do” means way; and “juku” means a small place where one goes to study, learn and grow.

Plum Blossom

Sign Up For:

Ask Us About:

Schedule a Free Adult/Teen Karate Trial Class

Select a day & time for your trial class and complete the form below.
If your preferred day and time is not available, please call 773.472.7663.

    Tell us about the person taking the Trial Class


    Phone is:

    Is this person under 18 years of age?
             If under 18 years of age:      

    Do you/they have previous martial arts training? YesNo

    Limit of 500 Characters; Remaining: 500

    Set up a Free Trial Class

    Select a day & time from our kid's class schedule, then complete the form below.
    If you hope to schedule a trial class for today, please call 773.472.7663.

       ◊ Little Kicks are 4-5 years old. Little Kick classes are 30 minutes in length;
       ◊ Juniors are 6 years old thru 2nd grade; classes are 45 minutes in length;
       ◊ Youth are entering kids 3rd grade in Fall 2021 thru 11 years old;
       ◊ Teens 12-14 may train in Youth classes and Teen & Adult classes (while paying child rates);
       ◊ Teens 15-17 train in the Teen & Adult white belt classes and Adult color belt classes (while paying child rates);
       ◊ Youth and Teen classes are one hour (in person) and 45 min (virtual).




      Child's Gender:

      Does your child have any previous martial arts training? YesNo

      Limit to 500 characters; Remaining: 500

      We will contact you to finalize the trial class appointment and with information for attending the class.

      Camp Kokoro Information / Enrollment Request

      Information Request Form

        Tell Me More About:

        Self-Defense