Koji Komuro (Japanese: 小室 宏二, Komuro Kōji; born 29 July 1977) is a Japanese judoka and amateur mixed martial arts fighter. Taught by kosen judo master Kanae Hirata, Komuro is a ne waza (ground techniques) expert known for its use of sutemi (sacrifice throws) such as variations of tomoe nage, and submission techniques like jujigatame (armlock) and sode guruma jime (circular choke with the sleeves). He is the author of a book dedicated to ground techniques, Judo Newaza of Koji Komuro Komlock!.
Source: “Koji Komuro”, English Wikipedia (CC BY-SA 4.0), excerpt