Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865898 | Polyester film for magnetic recording media | Yujiro Fukuda, Shigeo Utsumi, Toshifumi Takisawa | 1989-09-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865898 | Polyester film for magnetic recording media | Yujiro Fukuda, Shigeo Utsumi, Toshifumi Takisawa | 1989-09-12 |