Oka Hidehiko
Okamoto Shigekatu
Okazaki Kiyoshi
Okazaki Yashushi
Okumoto Itsuo
Okun Milton R.
Okuno Takeshi
Okutomi Tsuneo
Oliver Jean E.
Olson B. Newell
Omino Teiji
Ono Masayoshi
Ono Pharmaceutical Co.
Ono Pharmaceutical Company, Ltd.
Onodera Kunikatsu
Orita Kunitaka
Orth Dieter
Orzalesi Giovanni
Orzalesi Henri
Osaka Kasei Company Limited