Granted Patent
Utility
US 6,699,594 · App. 09/675,166
Organic electroluminescent device
Inventors:
Hitoshi Ishikawa, Satoru Toguchi, Yukiko Morioka, Atsushi Oda
Patented Case
View Patent ↗
Granted: Mar 2, 2004
Filed: Sep 29, 2000
Inventors
Hitoshi Ishikawa
Satoru Toguchi
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.