Granted Patent
Utility
US 6,821,645 · App. 09/747,933
Light-emitting material comprising orthometalated iridium complex, light-emitting device, high efficiency red light-emitting device, and novel iridium complex
Inventors:
Tatsuya Igarashi, Keizo Kimura, Kazumi Nii
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Dec 27, 2000
Inventors
Tatsuya Igarashi
Keizo Kimura
Kazumi Nii
Assignee (at issue)
Fujitsu Limited
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.