O'dwyer Jeremiah
O'dwyer Jeremiah B.
O'hara Phillip M.
Obata Yoshizo
Ochiai Kiyoe
Oda Fujio
Odell Daniel Mackenzie Campbell
Oehler Siegfried
Ogashi Yoshihiro
Oguro Ryuichi
Ohara Kenichi
Ohno Yasuteru
Ohtani Tsugutoshi
Ohtsu Eiichi
Oilfield Equipment Development Center Limited
Oka Kiyoshi
Okada Hirosi
Okada Takao
Okada Yoji
Okafuji Takayuki