From BR Bullpen
- Bats Right, Throws Right
- Height 5' 7", Weight 140 lb.
- High School Onomichi Nishi High School
Bizen debuted in 1952. In his first game, March 21, he went the distance for a win, but he finished the season 7-17 with a 4.30 ERA. Yoshio had a 13-20, 3.80 record in 1953. He led the Central League with 282 hits allowed, 130 runs allowed and 105 earned runs allowed.
Yoshio made the CL All-Star in 1956 when he was 13-22 with a 3.13 ERA. He made 11 errors, setting the CL record for a pitcher. In 1957, he pitched 51 games and went 20-13 with a 2.51 ERA for a Carp team that was just 54-75-1. He just missed the top 10 in the league in ERA.
Yoshio had an even lower (1.56 ERA) in 1960 but did not qualify for the ERA title; had he done so, he would have led the league, .19 ahead of Noboru Akiyama. Bizen went 7-8 that season. In 1961, he fell to 5-8, 2.65 then was just 1-3 with a 5.19 ERA and .318 opponent average in 1962, his final campaign.
Bizen had a career record of 115-149, 2.96 while toiling for some poor Hiroshima clubs. After retiring as a pitcher, he coached and scouted for Hiroshima and managed their minor league team.