Granted Patent
Utility
US 6,449,890 · App. 09/618,098
Display element lighting method and display device
Inventor:
Syunichi Yamashita
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: Jul 17, 2000
Inventor
Syunichi Yamashita
Assignee (at issue)
NEC INFRONTIA 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.