Oogai Michiharu
Oohasi Koji
Oomichi Nobukatsu
Oonishi Nobuyuki
Oosawa Shinichiro
Oota Toshitaka
Ootsubo Masakazu
Opeka Mark M.
Orimo Yoshizo
Orissa Cement Limited
Orpac, Inc.
Osaki Hiroaki
Osamura Kazumi
Östhols Erik
Ota Hiroyasu
Otoishi Shinji
Ouchi Kimio
Oujevolk Geroge B.
Overkott Engelbert
Overturf Dale