Tadashi Sawamura (沢村 忠, Sawamura Tadashi; January 5, 1943 – March 26, 2021) was a Japanese kickboxer whose real name was Hideki Shiraha (白羽 秀樹, Shiraha Hideki). He is often credited with sparking the "Shōwa era kickboxing boom", being one of the era's most popular Japanese fighters, and enjoying great fame throughout his career.
Source: “Tadashi Sawamura”, English Wikipedia (CC BY-SA 4.0), excerpt