He was born in Osaka prefecture on July 25, 1967, and after a juvenile delinquent period was advised to play rugby to give his life some direction by a junior high school teacher.
In his first season as coach of Sungoliath his team was second in the league behind Toshiba Brave Lupus, after losing narrowly 10–12 to their Fuchu city rivals in a 'Fuchu derby'.
In the opening game of the 2007–8 season Kiyomiya's Suntory gained revenge, beating Toshiba 10–3 on October 26, 2007, under lights at Chichibunomiya.
On February 12, 2006, Coach Kiyomiya's Waseda defeated Toyota Verblitz, a team which included stars such as Troy Flavell and Filo Tiatia in the 43rd Japan Championships.
On February 24, 2008 Suntory Sungoliath coached by Kiyomiya-san defeated Sanyo Wild Knights in the final of the Microsoft Cup to become the champions of the 2007-08 Top League.