Ohta Hirao
Ohtake Genji
Ohtake Motoyuki
Ohtaki Katsura
Ohtsuka Katsumi
Ohtsuka Patent Office
Ohtsuki Motohiko
Ohyama Tatsuya
Ohzeki Takatoshi
Oikawa Ichiroh
Oikawa Keiki
Oizumi Kouji
Oka Mitsuhiko
Okabe Sayoko
Okajima Koji
Okamoto Hajime
Okamura Tetsuro
Okamura Tetsurou
Okano Hiroshi
Okisu Noriyuki