Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5346984 | Star-shaped nylons, methods for their preparation, tetrasubstituted carboxylic acids and methods for their preparation | Naoki Hasegawa, Arimitsu Usuki, Akane Okada | 1994-09-13 |