Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4801933 | Liquid crystal matrix device having separate driving circuits with diverse driving voltages | Kunihiko Yamamoto, Hiroshi Take | 1989-01-31 |
YI
Yutaka Ishii
Overall (1989): #39,727 of 140,708Top 30%
1
Patents 1989