Granted Patent
Utility
US 5,854,879 · App. 08/003,448
Method and apparatus for multi-level tone display for liquid crystal apparatus
Inventors:
Tatsuhiro Inuzuka, Hiroyuki Mano, Kazuhiro Fujisawa, Satoshi Konuma, Kiyoshige Kinugawa, Satoru Tsunekawa
Patented Case
View Patent ↗
Granted: Dec 29, 1998
Filed: Jan 12, 1993
Inventors
Tatsuhiro Inuzuka
Hiroyuki Mano
Kazuhiro Fujisawa
Satoshi Konuma
Kiyoshige Kinugawa
Satoru Tsunekawa
Assignees (at issue)
HITACHI, LTD.
Hitachi Video Engineering, Incorporated
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.