Katsuya was educated at and played for Shimabara Commercial High School and Osaka University of Commerce. After graduating in 1984, he joined Japan Soccer League side Honda. He was selected Best Eleven in 1985/86 and 1986/87. But he moved to fellow JSL side Nissan Motors (later "Yokohama Marinos") in 1991. He was transferred to Júbilo Iwata in 1994, then to Cerezo Osaka in 1998, and retired from the game at the end of the 1998 season.