Granted Patent
Utility
US 6,146,718 · App. 09/135,816
Liquid crystalline compound having a negative dielectric anisotropy value, liquid crystal composition containing the liquid crystalline compound, and liquid crystal display element produced utilizing the liquid crystal composition
Inventors:
Hitoshi Yano, Shuichi Matsui, Hiroyuki Takeuchi, Kazutoshi Miyazawa, Yasuhiro Haseba
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Aug 18, 1998
Inventors
Hitoshi Yano
Shuichi Matsui
Hiroyuki Takeuchi
Kazutoshi Miyazawa
Yasuhiro Haseba
Assignee (at issue)
Chisso Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.