Granted Patent
Utility
US 6,686,983 · App. 09/982,071
Reflection type liquid crystal display device with high-brightness bright display and high contrast
Inventors:
Tetsushi Tanada, Mitsuo Ohizumi, Mitsuru Kano
Patented Case
View Patent ↗
Granted: Feb 3, 2004
Filed: Oct 17, 2001
Inventors
Tetsushi Tanada
Mitsuo Ohizumi
Mitsuru Kano
Assignee (at issue)
ALPS ELECTRIC 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.