Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5489387 | Separation agent comprising acyl- or carbamoyl-substituted polysaccharide | Tohru Shibata, Ichiro Okamoto | 1996-02-06 |
| 5472599 | Separation agent comprising aliphatic or aromatic ester of polysaccharide | Tohru Shibata, Ichiro Okamoto | 1995-12-05 |
| 5415780 | Separation agent comprising acyl- or carbamoyl-substituted polysaccharide | Tohru Shibata, Ichiro Okamoto | 1995-05-16 |
| 5415769 | Separation agent comprising aliphatic or aromatic ester of polysaccharide | Tohru Shibata, Ichiro Okamoto | 1995-05-16 |
| 5368737 | Separation agent comprising acyl-or carbamoyl-substituted polysaccharide | Tohru Shibata, Ichiro Okamoto | 1994-11-29 |
| 5334311 | Separation agent comprising aliphatic or aromatic ester of polysaccharide | Tohru Shibata, Ichiro Okamoto | 1994-08-02 |
| 5268098 | Separation agent comprising aliphatic or aromatic ester of polysaccharide | Tohru Shibata, Ichiro Okamoto | 1993-12-07 |
| 5192444 | Separating with an agent comprising an aliphatic ester of a polysaccharide | Tohru Shibata, Ichiro Okamoto | 1993-03-09 |
| 5137638 | Separation agent comprising acyl- or carbamoyl-substituted polysaccharide | Tohru Shibata, Ichiro Okamoto | 1992-08-11 |
| 5135653 | Optical resolution with .beta.-1,4-xylan dibenzoate | Yoshio Okamoto, Koichi Hatada, Tohru Shibata, Ichiro Okamoto | 1992-08-04 |
| 5089138 | Separating with an agent comprising an aliphatic ester of a polysaccharide | Tohru Shibata, Ichiro Okamoto | 1992-02-18 |
| 5075009 | Separation agent comprising acyl- or carbamoyl-substituted polysaccharide | Tohru Shibata, Ichiro Okamoto | 1991-12-24 |
| 5059328 | Separation agent comprising 1,3-glucan | Tohru Shibata, Ichiro Okamoto | 1991-10-22 |
| 5041226 | Separating with an agent comprising aliphatic ester of polysaccharide | Tohru Shibata, Ichiro Okamoto | 1991-08-20 |
| 5032277 | Optical resolution with .beta.-1,4-mannan tribenzoate | Yoshio Okamoto, Koichi Hatada, Tohru Shibata, Ichiro Okamoto | 1991-07-16 |
| 5017290 | Separation agent comprising acyl- or carbamoyl-substituted polysaccharide | Tohru Shibata, Ichiro Okamoto | 1991-05-21 |
| 5002669 | Separation agent comprising 1,3-glucan | Tohru Shibata, Ichiro Okamoto | 1991-03-26 |
| 4966694 | Separation agent comprising acyl- or carbamoyl-substituted polysaccharide | Tohru Shibata, Ichiro Okamoto | 1990-10-30 |
| 4931184 | Optical resolution with tribenzoyl-b-1,4-chitosan | Yoshio Okamoto, Koichi Hatada, Tohru Shibata, Ichiro Okamoto | 1990-06-05 |
| 4897198 | Separation agent comprising 1,3-glucan | Tohru Shibata, Ichiro Okamoto | 1990-01-30 |
| 4892659 | Separation agent comprising aliphatic ester of polysaccharide | Tohru Shibata, Ichiro Okamoto | 1990-01-09 |
| 4879038 | Separation agent comprising acyl- or carbamoyl-substituted polysaccharide | Tohru Shibata, Ichiro Okamoto | 1989-11-07 |
| 4877617 | Fungicidal and bactericidal method | Tatsuo Goto | 1989-10-31 |
| 4830752 | Separation agent comprising 1,3-glucan | Tohru Shibata, Ichiro Okamoto | 1989-05-16 |
| 4786415 | Separation agent comprising aliphatic ester of polysaccharide | Tohru Shibata, Ichiro Okamoto | 1988-11-22 |