Granted Patent
Utility
US 5,677,746 · App. 08/515,200
Back light device for use in liquid crystal displays
Inventor:
Takakazu Yano
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: Aug 15, 1995
Inventor
Takakazu Yano
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.