Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836654 | Drive method for a dual-frequency, dielectric anisotropy liquid crystal optical device | Masakatsu Higa, Hisashi Aoki | 1989-06-06 |
| 4832460 | Liquid crystal apparatus having pressure absorbing means | Kenzo Endo, Kohei Saito | 1989-05-23 |