Granted Patent
Utility
US 5,570,211 · App. 08/251,865
Color liquid crystal display device using birefringence
Inventors:
Kazutaka Hanaoka, Hidefumi Yoshida, Kimiaki Nakamura, Hideaki Tsuda, Hideo Chida
Patented Case
View Patent ↗
Granted: Oct 29, 1996
Filed: May 31, 1994
Inventors
Kazutaka Hanaoka
Hidefumi Yoshida
Kimiaki Nakamura
Hideaki Tsuda
Hideo Chida
Assignee (at issue)
Fujitsu Limited
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.