Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5677712 | Semiconductor device | — | 1997-10-14 |
| 5629420 | Substituted acetoxyazetidinone derivatives and process for preparing 4-acyloxyazetidinone derivatives | Takao Saito, Hidenori Kumobayashi | 1997-05-13 |
| 5606052 | Substituted acetoxyazetidinone derivatives and process for preparing 4-acyloxyazetidinone derivatives | Takao Saito, Hidenori Kumobayashi | 1997-02-25 |