Granted Patent
Utility
US 6,147,451 · App. 09/129,837
Organic electrominiscent display device
Inventors:
Kenichi Shibata, Yuji Hamada
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Aug 6, 1998
Inventors
Kenichi Shibata
Yuji Hamada
Assignee (at issue)
SANYO ELECTRIC CO., 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.