Teachers (1)

• 
  Yokoyama Sakujiro

  linkKōdōkan Jūdō 2

  Probable

  Documented as a student at the Kodokan from 1891, with specific enrollment date recorded in historical records

  sports_kabaddiKodokan badge (1891)

  expand_morefact_checkassessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  1 source

  fact_check

  Documented as a student at the Kodokan from 1891, with specific enrollment date recorded in historical records

  assessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  "one day he saw a man carrying a judo uniform and followed him to the Kodokan. There he applied for entry, was found acceptable, and signed its enrollment book on November 23, 1891 (...) Sakujiro Yokoyama was head instructor."

  — Judo: Kunisaburo Iizuka (Journal of Combative Sport, July 2002)link

Ranks (1)

• linkKōdōkan Jūdō

  military_tech10 dan 3

  Confirmed

  Officially awarded 10 dan by Kodokan in 1946, well-documented in multiple historical sources, including academic articles

  Dan-Kyu System (1946)

  granted by Kodokan

  expand_morefact_checkassessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  2 sources

  fact_check

  Officially awarded 10 dan by Kodokan in 1946, well-documented in multiple historical sources, including academic articles

  assessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  "1946年（昭和21年）、最高位の十段に列位した。"

  — 飯塚国三郎 - Wikipedialinkhistory

  "Iizuka received promotion to 9-dan on December 23, 1937. His 10-dan ranking came on May 4, 1946"

  — Judo: Kunisaburo Iizuka (Journal of Combative Sport, July 2002)link

Students (2)

• 
  Kenneth Kuniyuki

  linkKōdōkan Jūdō 3

  Confirmed

  Well-documented in USJF biography with specific dates 1931-1932 studying under Kunisaburo Iizuka in Tokyo

  sports_kabaddiKeio University badge (1931-1932)

  expand_morefact_checkassessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  2 sources

  fact_check

  Well-documented in USJF biography with specific dates 1931-1932 studying under Kunisaburo Iizuka in Tokyo

  assessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  "From 1931 to 1932 Kenneth studied under Kunisaburo Iizuka, 8-dan, and original student of Kano Sensei in Tokyo, Japan"

  — Kenneth Kuniyuki - USJFlink

  "In 1932 he went to Japan to train at Keio University under the instruction of Kunisaburo Iizuka, 8 dan at the time"

  — Asian Americans who've made a difference - Shoyu Zinelink
• Su
  Sugino Yoshio

  linkKōdōkan Jūdō 3

  Confirmed

  Studied judo under Kunisaburo Iizuka at Keio University from 1918, documented in Aikido Journal with specific details about training and Iizuka's 8th dan rank at Kodokan

  sports_kabaddiKeio University badge (1918-1919)

  expand_morefact_checkassessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  2 sources

  fact_check

  Studied judo under Kunisaburo Iizuka at Keio University from 1918, documented in Aikido Journal with specific details about training and Iizuka's 8th dan rank at Kodokan

  assessed by FSMverified

  Frederico Muñoz

  Researcher, Martialis

  "While at Keio, he began studying judo under Kunisaburo Iizuka, an 8th dan judoist who also taught at the Kodokan."

  — The Last Swordsman: The Yoshio Sugino Story, Part 1 - Aikido Journallink

  "In particular, he studied judo under Kunisaburo Iizuka, one of Japan's top collegiate coaches at the time."

  — Yoshio Sugino - Wikipedialinkinfo

Sources