Koichi Yaguchi (矢口 洪一, Yaguchi Kōichi; February 20, 1920 – July 25, 2006) was the 11th Chief Justice of Japan (1985–1990). He was graduate of Kyoto University. He was a recipient of the Order of the Rising Sun with Paulownia flowers.
Source: “Koichi Yaguchi”, English Wikipedia (CC BY-SA 4.0), excerpt