Granted Patent
Utility
US 6,660,408 · App. 09/315,345
Organic electroluminescent device
Inventors:
Satoru Toguchi, Hitoshi Ishikawa, Atsushi Oda
Patented Case
View Patent ↗
Granted: Dec 9, 2003
Filed: May 20, 1999
Inventors
Satoru Toguchi
Hitoshi Ishikawa
Atsushi Oda
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.