Granted Patent
Utility
US 6,195,142 · App. 08/773,732
Organic electroluminescence element, its manufacturing method, and display device using organic electroluminescence element
Inventors:
Akira Gyotoku, Hideaki Iwanaga, Shintaro Hara, Takahiro Komatsu, Kei Sakanoue
Patented Case
View Patent ↗
Granted: Feb 27, 2001
Filed: Dec 24, 1996
Inventors
Akira Gyotoku
Hideaki Iwanaga
Shintaro Hara
Takahiro Komatsu
Kei Sakanoue
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.