加藤大治郎
He competed in the 250cc All-Japan Road Racing Championship from 1991 to 1996. In 1993 he was signed by Suzuki who were entering the Championship for the first time with the RGV250. Numata took the machine to its first victory at Round 9 of the championship. He went on to give Suzuki its first ever 250cc national title in 1995, beating Honda’s Tohru Ukawa, and repeated the feat again the following year beating future 250cc World Champion Daijiro Kato.