Flynn, Thiel, Boutell & Tanis
Separating agent
 A mixture of chemical substances such as optical isomers, geometrical isomers and polymers having different molecular weight ranges is separated to each ingredient by use of a cellulose derivative having an aromatic ring in the chromatographic method. 
Daicel Chemical Industries, Inc.
Ichiro Tohru Hiroyuki Yoshio Koichi
Okamoto Shibata Nakamura Okamoto Hatada