Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699136 | Negative uniaxial anisotropic element and method for manufacturing the same | Kohei Arakawa, Yosuke Nishiura | 1997-12-16 |
| 5631051 | Optical compensatory sheet | — | 1997-05-20 |