Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814523 | Nematic liquid crystal compound of four ring systems | Yasuyuki Tanaka, Haruyoshi Takatsu, Kiyohumi Takeuchi | 1989-03-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814523 | Nematic liquid crystal compound of four ring systems | Yasuyuki Tanaka, Haruyoshi Takatsu, Kiyohumi Takeuchi | 1989-03-21 |