Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847311 | Polyimide resin composition | Norimasa Yamaya, Nobuhito Koga | 1989-07-11 |
| 4816516 | Polyimide resin-fluoropolymer compositions | Norimasa Yamaya, Nobuhito Koga | 1989-03-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847311 | Polyimide resin composition | Norimasa Yamaya, Nobuhito Koga | 1989-07-11 |
| 4816516 | Polyimide resin-fluoropolymer compositions | Norimasa Yamaya, Nobuhito Koga | 1989-03-28 |