Granted Patent
Utility
US 6,633,123 · App. 09/932,876
Organic electroluminescence device with an improved heat radiation structure
Inventor:
Hidehisa Tazawa
Patented Case
View Patent ↗
Granted: Oct 14, 2003
Filed: Aug 21, 2001
Inventor
Hidehisa Tazawa
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.