O′Byrne Daniel
O'Dunlaing Eoin
O'Toole Herbert
Ober James K.
Oh Hyung-Jong
Oh Yeong-Jong
OIMA S.p.A.
Oka Keijiro
Okabe Yoshihiro
Okimoto Hajime
Okubo Akihide
Okubo Hiroo
Okubo Kazuyuki
Okuyama Kazuhiko
Olaru George T
Oles David
Omni Mold Systems
Onizawa Takayuki
Onuma Susumu
Oomori Toshiaki