O'Gorman Carmella
O'Keefe Christian V.
O'Haver Thomas C.
Okumoto Toyoharu
Olsen Khris B.
Omuro Naoko
Onishi Koichi
Optotrace Technologies, Inc.
Ornter Hugo
Osada Hisajiro
Osvay Károly
Ota Taisuke
Ouchi Yoshifusa
Owada Minoru
Owen Edward E.
Owicki John C
Oxford Instruments Analytical Oy