[10] However, Noguchi was arrested for matchfixing of world title fights, and was backlisted from the boxing promotion in Japan, including being cut off from his contract with NET.
In 1964 Osamu Noguchi and Tatsuo Yamada organised a 3-on-3 competition of Kyokushin Karate vs Muay Thai competition with Tadashi Nakamura, Kenji Kurosaki and Tadashi Sawamura being the representatives for Karate and defeating their Muay Thai opponents at the Lumpinee Boxing Stadium in Thailand.
[12] Noguchi coined the term "kickboxing" in the 1960s as a Japanese anglicism[13] for a hybrid martial art combining Muay Thai and karate, which he had introduced in 1958.
In 1970 under the guidance of Yoko Yamaguchi persuaded Noguchi to sign Hiroshi Itsuki as a singer with great success.
[19] Osamu Noguchi appears as character in Kick no Oni a Japanese anime based on the life of the kickboxer Tadashi Sawamura.