Granted Patent
Utility
US 6,565,994 · App. 09/780,487
Light emitting device material comprising iridium complex and light emitting device using same material
Inventor:
Tatsuya Igarashi
Patented Case
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Granted: May 20, 2003
Filed: Feb 12, 2001
Inventor
Tatsuya Igarashi
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.