Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5335256 | Semiconductor substrate including a single or multi-layer film having different densities in the thickness direction | Takashi Iizuka | 1994-08-02 |
| 5327272 | Optical modulation element | Ryoji Fujiwara, Shuzo Kaneko, Akio Maruyama, Tomoko Murakami | 1994-07-05 |
| 5321538 | Method for gradation display using a liquid crystal optical element with minute insulation portions on the electrodes | Shuzo Kaneko, Ryoji Fujiwara, Tomoko Murakami | 1994-06-14 |