is a former Japanese football player. Playing career Yamanaka was born in Oita Prefecture on April 19, 1983. After graduating from high school, he joined J2 League club Mito HollyHock in 2002. On October 23, he debuted as substitute defender from the 88th minutes against Ventforet Kofu. However he could only play this match until 2003 and retired end of 2003 season. Club statistics References External links 1983 births Living people Association football people from Ōita Prefecture Japanese footballers J2 League players Mito HollyHock players Association football defenders