Koichi Yamamoto was born in 1947.
Koichi Ishii was born in 1964.
Koichi Tani was born in 1952.
Koichi Nakamura was born in 1964.
Koichi Hirata was born in 1948.
Koichi Oshima was born in 1967.
Koichi Nishimura was born in 1973.
Koichi Kawakita was born in 1942.
Koichi Morishita was born in 1967.
Koichi Hirakida was born in 1938.
Koichi Misawa was born in 1974.
Koichi Toyama was born in 1970.
Koichi Takemasa was born in 1961.