KYOKUSHINKAI KARATE

極真会館空手

Training, Rank, and Historical Connection

Kyokushinkai Karate, founded by Masutatsu Ōyama in 1964, is known for its emphasis on discipline, full-contact training, and the development of strong mind and body.

極真会館

OVERVIEW

During the 1960s and 1970s, Kyokushinkai Karate was spreading worldwide under the leadership of Masutatsu Ōyama. My father traveled to Japan to train and was awarded official membership in the organization. This connection reflects a personal bond with Sosai and a commitment to the principles of Kyokushin.

“Strong Body, Strong Mind.”

THE MAS OYAMA CONNECTION

This original membership card was personally signed by Sosai Masutatsu Ōyama, the founder of Kyokushinkai Karate.

It represents a direct connection to the source of Kyokushin and a recognition of my father’s dedication to the art.

Certificates & Documents

Original documents that preserve this connection and recognition.

letter

A reply letter dated July 10, 1961 from Masutatsu Oyama

Envelop

A reply letter dated July 10, 1961 from Masutatsu Oyama

Certificate

Shodan (1st degree Black Belt) in Kyokushinkai Karate

Photograph

A rare signed photo's from Robert Trias.

Photograph

A rare signed photo's from Robert Trias.

Certificate

My father's United States Karate Association Certificate of Rank from Robert Trias

TIMELINE

1950s

Early Training

My father begins his study of martial arts, developing a strong foundation in traditional systems.

1960s

Training in Japan

Traveled to Japan to train in karate and other martial arts under leading instructors.

Mid–1960s

Kyokushinkai Membership

Awarded official membership by Sosai Masutatsu Ōyama.

1970s

Continued Involvement

Active in promoting Kyokushinkai in the United States.

Present

Legacy

The connection and values live on through this collection and the students he influenced.

Photo Gallery

Images from training, Japan, and events throughout the years.

Robert C. Gruzanski

Curator of the Gruzanski Archives

© 2002–2026 Robert C. Gruzanski. All rights reserved. Content may not be reproduced or used without permission.