Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820793 | Method of preparing aromatic polyamides and polybenzoxazoles | Yoshio Imai, Masaaki Kakimoto, Yutaka Maruyama | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820793 | Method of preparing aromatic polyamides and polybenzoxazoles | Yoshio Imai, Masaaki Kakimoto, Yutaka Maruyama | 1989-04-11 |