Granted Patent
Utility
US 6,506,507 · App. 09/686,363
Methine compound, material for organic luminescence element, and organic luminescence element using the same
Inventors:
Hisashi Okada, Terukazu Yanagi
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Oct 12, 2000
Inventors
Hisashi Okada
Terukazu Yanagi
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.