Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880561 | Optically active compound and liquid crystalline composition | Tatsuru Tabohashi, Takao Sakurai, Ryoichi Higuchi, Eri Yamamoto, Koji Takeuchi | 1989-11-14 |
| 4874542 | Phenyl-pyrimidine liquid crystal compounds and liquid crystal compositions containing the same | Ryoichi Higuchi, Takao Sakurai, Tadahiko Yokota, Eri Yamamoto, Koji Takeuchi | 1989-10-17 |
| 4831182 | Biphenyl-based diester compounds and liquid crystal compositions containing same | Ryoichi Higuchi, Takao Sakurai, Kiriko Akaiwa, Koji Takeuchi | 1989-05-16 |