Granted Patent
Utility
US 5,343,050 · App. 08/000,884
Organic electroluminescent device with low barrier height
Inventors:
Syun Egusa, Yoko Watanabe
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: Jan 5, 1993
Inventors
Syun Egusa
Yoko Watanabe
Assignee (at issue)
Kabushiki Kaisha Toshiba
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.