Katsumi Yamamoto (山本勝巳, Yamamoto Katsumi; born March 5, 1973) is a Japanese professional racing driver. A native of Fukuoka, he has notably raced in Formula 3, Formula 3000 and Formula Nippon, as well as Super GT.
Source: “Katsumi Yamamoto (racing driver)”, English Wikipedia (CC BY-SA 4.0), excerpt