Granted Patent
Utility
US 6,727,645 · App. 10/350,215
Organic LED device
Inventors:
Takatoshi Tsujimura, Atsushi Tanaka, Kohichi Miwa, Mitsuo Morooka
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Jan 23, 2003
Inventors
Takatoshi Tsujimura
Atsushi Tanaka
Kohichi Miwa
Mitsuo Morooka
Assignee (at issue)
International Business Machines Corporation
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.