Granted Patent
Utility
US 6,780,529 · App. 10/097,607
Heterocyclic compound and light-emitting device using same
Inventor:
Keizo Kimura
Patented Case
View Patent ↗
Granted: Aug 24, 2004
Filed: Mar 15, 2002
Inventor
Keizo Kimura
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.