Career
He was born in Iyo-gun, Ehime, Japan. Prior to playing professionally, he attended Matsuyama Chuo High School and then Kyushu Community College. He made one relief appearance in both 2005 and 2006, posting ERAs of 0.00 each time. In 2007, he was 2–2 with a 3.81 ERA in 23 relief appearances, striking out 12 batters in 26 innings. Overall, he was 2–2 with a 3.58 ERA in 25 Nippon Pro games. He had signed to play with the independent San Diego Surf Dawgs of the Arizona Winter League in 2009, but it is unknown whether he played with them.References
{{DEFAULTSORT:Yamamura, Michinao 1978 births Living people Asian Games medalists in baseball Asian Games silver medalists for Japan Baseball players at the 1998 Asian Games Fukuoka Daiei Hawks players Fukuoka SoftBank Hawks players Japanese expatriate baseball players in Mexico Japanese expatriate baseball players in the United States Medalists at the 1998 Asian Games Mexican League baseball pitchers Nippon Professional Baseball pitchers Baseball people from Ehime Prefecture Sultanes de Monterrey players