Dee ihe na-aga n'ihu maka paragraf a - Na 1972 Summer Olympics qualification, na-eso ọdịda nke Japan iji ruo eruo maka 1972 Summer Olympics, Okano gbara arụkwaghịm na Naganuma ghọrọ onye njikwa ọzọ na 1972. O duziri asọmpi Iko Mbaụwa nke afọ 1974 na asọmpi egwuregwu Asia nke afọ 1974
Ọ dị mma. Na 1976 Summer Olympics ntozu na Eprel 1976, mgbe ọdịda nke Japan maka iru eru maka 1976 Summer Olympics, Naganuma gbara arụkwaghịm.