O'Brien Robert P. O'Flynn
O'Sullivan James P. O.
Obayashi Atsushi
Ohdaira Toshiyuki
Ohshita Yoshihiro
Ohta Shun-ichi
Ohtsuka Tetsumi
Ohwada Isao
Oishi Tomoji
Ojard Greg C.
Okada Toshiyuki
Okajima Yoshitoshi
Okamura Tomoyuki
Okamura Toshimasa
Okamura Yoshio
Okaue Etsuo
Okude Kojiro
Oliff & Derridge, PLC
Oll Jung-Geon
Oochi Ikurou