Olson Engineering Inc.
Omachi Yoshio
Omnewtronics, Inc.
Ondocsin John
Onishi Takanori
Onishi Toshinari
Oonishi Toshinari
Oosawa Koichi
Oosuga Minoru
Ootsubo Suminobu
Orova Josef
Osrodek Badawczo-Rozwojowy Samochodow Malolitrazowych "Bosmal"
Ostergaard Neil A.
Ota Nobuyoshi
Ota Shigehiko
Otaka Syoichi
Overton Delbert L.
Owen, Wickersham & Erickson
Ozeki Masaaki