Granted Patent
Utility
US 5,644,415 · App. 08/354,595
Liquid crystal display device having wide field angle
Inventors:
Hisashi Aoki, Tetsushi Yoshida
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Dec 13, 1994
Inventors
Hisashi Aoki
Tetsushi Yoshida
Assignee (at issue)
CASIO COMPUTER CO., LTD.
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.