Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5530086 | Polyester containing 9,9-bis(4-(2-hydroxyalkoxy)phenyl fluorene | Michiaki Fuji, Kenji Yao, Koei Igarashi | 1996-06-25 |
| 4818808 | Process for producing polyesters using a niobium compound as a catalyst | Yoshimichi Ozawa, Nobuo Izawa | 1989-04-04 |