Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10836834 | Separating agent for optical isomer | Yoshio Okamoto, Tomoyuki Ikai, Masami Kamigaito | 2020-11-17 |
| 9499638 | Polysaccharide derivative and separating agent for optical isomer containing the same | Yoshio Okamoto, Shunsuke Kondo, Masami Kamigaito | 2016-11-22 |
| 8124712 | Filler for optical isomer separation | Yoshio Okamoto, Tomoyuki Ikai, Masami Kamigaito | 2012-02-28 |
| 8053543 | Filler for optical isomer separation | Yoshio Okamoto, Tomoyuki Ikai, Masami Kamigaito | 2011-11-08 |
| 7938962 | Separating agent for enantiomeric isomers and method of producing the same | Yoshio Okamoto, Takateru Kubota | 2011-05-10 |
| 7772153 | Separating agent for enantiomeric isomers | Yoshio Okamoto | 2010-08-10 |
| 7772382 | Chitosan derivative and method of producing same | Yoshio Okamoto, Masami Kamigaito | 2010-08-10 |
| 7745616 | Bead for enantiomeric isomer resolution and process for producing the same | Yoshio Okamoto, Tomoyuki Ikai, Masami Kamigaito | 2010-06-29 |
| 7740758 | Separating agent including polysaccharide derivative having a polycyclic structure | Yoshio Okamoto | 2010-06-22 |
| 7683167 | Separating agent for enantiomeric isomers | Yoshio Okamoto | 2010-03-23 |
| 7323101 | Separating agent for optical isomer and method for preparation thereof | Yoshio Okamoto, Takateru Kubota | 2008-01-29 |
| 7223334 | Separating agent for enantiomeric isomers | Yoshio Okamoto, Takateru Kubota | 2007-05-29 |
| 7156989 | Separating agent including polysaccharide derivative having a polycyclic structure | Yoshio Okamoto | 2007-01-02 |