Okawa Eiji
Okazaki Masanobu
Okuda Sadanao
Okusawa Koichi
Oleson Andrew L.
Olmedo Antonio P.
Oltra Claude H.
Omori Michael K.
Onishi Hiroaki
Oozeki Masanao
Orbot Instruments Ltd.
Orimoto Masaki
Osada Tomotaka
Oshio Susumu
Ota Tatsuki
Paans Herbert
Padula Benito
Panaia Raymond R.
Panipinto Charles L.
Pankow Martin