Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880936 | Optically active pyridines useful in liquid crystal form for electrical display devices | Makoto Sasaki, Haruyoshi Takatsu | 1989-11-14 |
| 4814516 | Novel optically active tolan derivatives | Makoto Sasaki, Haruyoshi Takatsu | 1989-03-21 |
| 4814523 | Nematic liquid crystal compound of four ring systems | Yasuyuki Tanaka, Haruyoshi Takatsu, Yuji Tamura | 1989-03-21 |