Imamura was born in Koka on April 27, 1949. After graduating from Koka High School, he joined Japan Soccer League club Yanmar Diesel in 1968. He played as winger with Kunishige Kamamoto and assisted his many goals. The club won the league championship in 1971, 1974, 1975, and 1980. He retired in 1983. He played 230 games and scored 60 goals in the league.