Granted Patent
Utility
US 6,040,889 · App. 08/997,232
Liquid crystal display with continuous grayscale, wide viewing angle, and exceptional shock resistance
Inventors:
Ken-Ichi Takatori, Ken Sumiyoshi
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Dec 23, 1997
Inventors
Ken-Ichi Takatori
Ken Sumiyoshi
Assignee (at issue)
NEC 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.