Granted Patent
Utility
US 6,565,993 · App. 09/732,715
Organic electroluminescence device
Inventors:
Satoru Toguchi, Hitoshi Ishikawa, Hiroshi Tada, Yukiko Morioka, Atsushi Oda
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Dec 11, 2000
Inventors
Satoru Toguchi
Hitoshi Ishikawa
Hiroshi Tada
Yukiko Morioka
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.