Okazaki Tsuyoshi
Oki Youji
Okita Masaya
Okushima Hiroki
Omlor Richard J.
Omote Ryoumei
Onda Fumiyo
Ong Hiap L.
Oniwa Hirotomo
Onodera Koichi
Onokhov Arkady
Oota Makoto
Oota Toshihiko
Opalux Incorporated
Optel Corporation
Optelecom Inc.
Optical Technologies Italia S.p.a.
Opticom Asa
Optimer Photonics Inc.
Optium Australia Pty Limited