Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876137 | Polyethylene naphthalate film for high-density magnetic recording media of floppy disk | — | 1989-10-24 |
| 4865898 | Polyester film for magnetic recording media | Yujiro Fukuda, Kichinojyo Tomitaka, Toshifumi Takisawa | 1989-09-12 |
| 4814221 | Polyethylene-2,6-naphthalate film for capacitor | — | 1989-03-21 |
| 4814426 | Shrinkable polyester film for packaging | Yujiro Fukuda | 1989-03-21 |
| 4812360 | Thermal transfer (printing) material | — | 1989-03-14 |
| 4804736 | Polyethylene-2,6-naphthalate film for magnetic recording tapes | — | 1989-02-14 |
| 4799772 | Uniaxially high-oriented polyethylene naphthalate film for liquid crystal panel substrates | — | 1989-01-24 |