James Mitose (James Masayoshi Mitose)

James Mitose

James Mitose

James Masayoshi (Masakichi Kosho Kenposai) Mitose was born in Kailua-Kona, North Kona District, Hawaii on December 30, 1916. On October 22, 1920, at the age of four, he and his two sisters were taken by their mother back to Japan to be given formal education and upbringing with family living there. While there, in addition to their schoolwork and university studies, they trained in the art of Kenpo. James returned to the United States on February 25, 1935, arriving at Honolulu, Hawaii on the SS Tatsuta Maru at the age of 21.  His martial arts practices contained marked similarities to Okinawan karate and Japanese jujutsu. Mitose always claimed his art was Japanese rather than Okinawan.  Mitose began teaching Kenpo in Hawaii in 1936, and in 1941 set up a martial arts school. He gave the style he taught a number of different names during his lifetime, including “Shorinji Kenpo” and “Kenpo Jujutsu,” (both names of recognized Japanese martial arts), but over time, settled on the name Kosho Shōrei-ryū Kenpo. The word “Kenpo” (or “Kempo”) is a Japanese form of “Ch’uan Fa.”

When the attack on Pearl Harbor occurred, Mitose enlisted in the National Guard, but was honorably discharged after three weeks. He was later interned in Sand Island, a camp on the north side of Oahu. After his release in 1942,he spent most of the war teaching Kenpo in Hawaii to prepare American civilians for a possible Japanese invasion. He worked as an herbalist and was known to be an extraordinary healer. He also owned a brothel.  Tracy’s Kenpo has martial lineage through Ray Arquilla to James Mitose and Will Tracy trained under GM Fusae Mitose (Mitose’s sister). Mitose claimed that his family in Japan lived near a “Mt. Akenkai’s Shaka-In temple.” Tracy’s believe that Mount Akenkai might be Mount Kinkai, near the town of Kinkai, Nagasaki on the island of Kyūshū. This may have been where the Kosho sect of the Yoshida (Urabe) clan taught.

Michael Brown of Rhode Island Martial Arts possesses documents showing three families of James Mitose. The first family being from Mitose’s father’s side. This includes his father, Otokichi Mitose and Otokichi’s parents, Kaheiji Mitose, and Kano Kawakami Mitose.The second family, from Mitose’s mother’s side, includes his mother Kiyoka Yoshida Mitose and Kiyoka’s biological father, Sakuhei Yoshida. Sakuhei Yoshida was married to a woman who was not Kiyoka’s biological mother. Sakuhei Yoshida conceived Kiyoka Yoshida Mitose with a woman outside of his marriage named Toju Kosho. James Mitose would learn Kosho-ryū from the family of Toju Kosho. It is worthwhile to note that on Mitose’s parents’ record of marriage, Kiyoka Yoshida Mitose’s mother is not named as Toju Kosho. Instead the name Toju Unknown occupies this position of the document.

To his students and in his book, What is True Self-Defense?, Mitose described his teachings as those of Japanese style. In the book, Mitose describes methods of Japanese yoga and the tai sabaki principles found in many Japanese arts. His later book, What Is Self Defense? and accounts and photos strongly suggest that, however he got it, Mitose had a background in an Okinawan style. Some modern proponents of Kosho Shōrei-ryū believe that he used an Okinawan art as a vehicle for his teaching of a native Japanese art. The contents of What Is Self Defense? seem to echo those of an earlier book: Karate Kenpo by Mutsu Mizuho (1933). This includes the arrangement of diagrams and photographs; in one case, a photo (of Higaonna Kamesuke) is reproduced entirely. Mitose’s book also includes a picture of Motobu Chōki, reproduced from Motobu’s book, in a position that usually indicates a student acknowledging his teacher. It is from here that some assume that Mitose was acknowledging Motobu as his teacher. Mitose listed Motobu as a Kenpo master in his book.

Mitose is known to have taught only one Kata at his school: the Naihanchi Kata, which also was Motobu Chōki’s primary form and the only one featured in Motubu’s second book Okinawan Kenpo Kumite Hen. Mitose also taught the use of the Makiwara, a signature Okinawan training method. A thriving Okinawan community existed in Hawaii and Okinawan martial arts training was available there. Higaonna Kamesuke stayed in Hawaii after 1933 with Thomas Miyashiro, and taught classes in Kona. Higaonna had studied under Mutsu and Motobu, and taught Karate Kenpo in Mitose’s home town of Kona just a few years before Mitose opened his school, although Mitose was still in Japan at the time.

Mitose ultimately called his style Kosho Shorei-Ryū Kenpo, which can be translated as “Old Pine Tree School.” Matsumura Sōkon’s style, which he taught to Ankō Itosu who taught it to Gichin Funakoshi and Motobu Chōki, was Okinawan Shōrin-ryū, which is often translated as “Little Pine Forest”. When Mitose first began teaching in 1936, he called his art Kenpo-Jiu-Jitsu (Nerve Strike method) and would later refer to it as Shorinji Kempo or Go Shin Jitsu. The word “Shorin” is characteristic of styles from Okinawa, although Shorinji Kempo is a Japanese art founded by Doshin So.

Mitose claimed that he learned martial arts and religion in a Buddhist temple, but his descriptions of organization and practices of the temple do not match those practiced by mainstream Japanese Buddhism. It is possible that Mitose came from a heterodox background. Mitose often dressed as a Christian minister. In “What Is True Self Defense?” he stated that one should practice the dominant religion of whatever country one is in, including its application to martial arts and spiritual practices. This book (the original manuscript of his first book was completed and published while he was imprisoned), discourages offensive martial arts techniques completely, presenting its contents as a form of yoga and escape. Mitose even writes that karate is “evil.” The description or lineage Mitose gave for his style also emphasized its Chinese roots. As a Japanese-American emigrating to Hawaii in 1937, he might have prudently downplayed the Japanese side of his background.

In 1953, James Mitose ceased teaching Kenpo regularly and moved to Southern California. He privately taught a few students in that time, including Nimr Hassan for about a year (formerly Terry Lee). In 1974 Mitose was arrested in Los Angeles and convicted of murder and extortion stemming from a conflict over a loan and a murder committed by Nimr Hassan. During the trial there was conflicting testimony and the court acknowledged that Japanese testimony had not been accurately translated.

According to trial transcripts, James Mitose denied inciting Hassan to commit murder but took responsibility as his martial arts instructor. Hassan claimed Mitose had suggested on numerous occasions that Hassan commit murder. Hassan also testified that Mitose and his wife Dorothy, had given Hassan a rope, a knife, a screwdriver and an air pistol in order to carry out his actions. Mr. Namimatsu was killed by Hassan on March 20, 1974. The official cause of death was strangulation by rope. Namimatsu also suffered a completely collapsed eye, had been stabbed multiple times with a screwdriver and had a shoe imprint on his chest matching the shoes Hassan was wearing. After the assault, Hassan testified he had left Namimatsu breathing.

As a result of Hassan’s testimony, Mitose was sentenced to life in prison and died in San Quentin of complications diabetes from  on March 26, 1981. The actual murderer, Hassan was given 3 years for testifying against his teacher/empllyer. Upon his release he took it upon himself to promote himself to “Hanshi”, Inheritor of Mitose Family Arts. He maintains this claim to date. While in prison, on two occasions Mitose attempted to instruct his son Thomas Barro Mitose, who referred to his father as a “crazy old man”, and refused to accept his fathers teachings. He also instructed Bruce Juchnik, Rick Alemany, Ray Arquilla, and Eugene Sedeno verbally (as they were accomplished Martial Artists and didn’t need physical training). In “What is True Self Defense?”, he acknowledges Arnold Golub as “Honorable Headmaster” an “administrative title”, and the other four men as “Honorable Masters 1-4.”In later years, after Mitoses’ passing, Golub would insist that Mitose intended him to oversee Kosho, not Juchnik. He would ultimately support Thomas as the 22nd Great-Grandmaster and inheritor of the art, and be given a high position in the MKKI.

In James Mitose’s final days he was visited by his wife, Dorothy, son, Alvin, and Bruce Juchnik. Mitose’s last will and testament is still being debated and argued about to the present. James Mitose maintained his innocence until his death. The details of the crime and Mitose’s role remain controversial in the martial arts community.


  • December, 30, 1916
  • Kailua-Kona, North Kona District, Hawaii


  • March, 26, 1981
  • San Quentin, California

Cause of Death

  • complications of diabetes

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