Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8440317 | Protective film for polarizing membrane and polarizing laminate | Tatsuo Izumitani | 2013-05-14 |
| 4943957 | High-density information recording carrier | Masaru Sato | 1990-07-24 |
| 4831608 | Multi-layer high density information recording carrier having a non-alkali inorganic glass protective layer | Masaru Sato | 1989-05-16 |
| 4596740 | Recording carrier comprising a magnetooptic recording medium layer consisting of rare earth-transition metal amorphous layer formed on a plastic substrate | — | 1986-06-24 |
| 4365002 | Coated plastic films | Shigeyuki Takahashi, Shozo Yamamoto | 1982-12-21 |