Ohigawa Heihachiro
Ohkawa Haruo
Ohki Takanosuke
Ohkubo Tatsuyuki
Ohkuma Nobuyoshi
Ohmizu Seiji
Ohmoto Kiwato
Ohmstede Bob
Ohmstede Robert L.
Ohmstede Machine Works, Inc.
Ohmura Masaru
Ohnishi Hideo
Ohnuma Toshio
Ohsumi Yoshihisa
Ohtaki Keizaburo
Ohuchi Masatoshi
Ohwaki Shigeru
Ohyama Kazuyoshi
Okada Fukumatsu
Okada Sensuke