Tsunetane Oda - Kosen Judo, early 1900s, France

Tsunetane Oda (小田常胤 Oda Tsunetane, March 10, 1892 – February 11, 1955) was a Judoka who was influential in the development of Kosen Judo. His correct name was Join Oda, but through a misinterpretation of the kanji 常胤 he is more commonly known as Tsunetane. Oda is credited with the invention of the Judo technique Sankaku-Jime (三角絞), which was subsequently incorporated into other disciplines, including Brazilian Jiu Jitsu and Mixed Martial Arts as the ’Triangle Choke’. Biography Oda was born in Yamanashi Pref