Granted Patent
Utility
US 6,005,350 · App. 09/027,623
Electroluminescent driving apparatus with photodetector
Inventors:
Yoshiaki Hachiya, Yuji Yamanishi, Yuji Ueno
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Feb 23, 1998
Inventors
Yoshiaki Hachiya
Yuji Yamanishi
Yuji Ueno
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, 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.