Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6485798 | Optical compensatory sheet comprising substrate and optically anisotropic layer | Ken Kawata, Shigeki Yokoyama, Mitsuyoshi Ichihashi | 2002-11-26 |
| 6476892 | Optical compensatory sheet consisting of one cellulose acetate film | — | 2002-11-05 |
| 6380996 | Optical compensatory sheet and liquid crystal display | Shigeki Yokoyama, Ken Kawata, Hideyuki Nishikawa, Koshin Matsuoka, Yoji Ito | 2002-04-30 |