Ootake Mitsuyoshi
Ootsuki Shirou
Orga Kartensysteme
Orient Instrument Computer Company, Ltd.
Orima Isamu
Orita Katsumi
Osborn Russel
Oser Rafael
Oshima Mitsuaki
Ostrolenk,Faber, Gerb & Soffen, LLP
Otsu Takeshi
Owens G. Russell
Pai Patent & Trademark Law Firm
Pai-Paranjape Vandita
Pallaroni Francesco
Pan Kee C.
Panchu YajPaul
Paragon Michael
Park Arnold
Park Sang-Ki