Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5291323 | Liquid crystal display device with positive and negative compensating films each with its optical axis parallel to the surface | Hiroshi Ohnishi, Toshiyuki Yoshimizu, Keiko Kishimoto | 1994-03-01 |
| 5249071 | Liquid crystal display having positive and negative uniaxially oriented polymer films | Toshiyuki Yoshimizu, Hiroshi Ohnishi, Keiko Kishimoto | 1993-09-28 |
| 5235450 | Liquid crystal display apparatus with positive and negative phase plates with specific positions of slow axes | Hiroshi Ohnishi, Toshiyuki Yoshimizu, Keiko Kishimoto | 1993-08-10 |
| 5126866 | Liquid crystal display with a plurality of phase difference plates the slow axes of which form an angle of 20 to 40 degrees | Toshiyuki Yoshimizu, Hiroshi Ohnishi, Kyouhei Isohata | 1992-06-30 |