Tōru Arakawa (荒川通, Arakawa Tōru; November 1932 in Gifu Prefecture, Japan – 20 June 2015) was a karate master of the style Wadō-ryū. He was one of the few karateka ranked 9th Dan in Japan.
Source: “Tōru Arakawa”, English Wikipedia (CC BY-SA 4.0), excerpt