Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5064275 | Liquid crystal display device having optically activatable switch means | Ichiro Tsunoda | 1991-11-12 |
| 4952031 | Liquid crystal display device | Ichiro Tsunoda | 1990-08-28 |