Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5047278 | Polyester film and magnetic recording medium | Masaaki Ono, Kazuo Okabe | 1991-09-10 |
| 4699845 | Easily-adhesive polyester film | Tatuo Oikawa, Kazuo Okabe | 1987-10-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5047278 | Polyester film and magnetic recording medium | Masaaki Ono, Kazuo Okabe | 1991-09-10 |
| 4699845 | Easily-adhesive polyester film | Tatuo Oikawa, Kazuo Okabe | 1987-10-13 |