Onami Kazunori
Oosugi Tooru
Oosumimoto Hirosi
Ootsuki Shinya
Orient Watch Co., Ltd.
Origin Electric Company Limited
Orthmann Ernst
Ortiz, Jr. Fernando
Osada Osamu
Osawa Michio
Ota Masahiro
Ota Masaru
Otani Yuzo
Ouchi Kazuhiro
Oyama Takuji
Oyamatsu Atsushi
Ozawa Hideki