Granted Patent
Utility
US 6,836,074 · App. 10/020,743
Organic electro-luminescence display driving system and mobile communication terminal used this system
Inventor:
Masafumi Nakamura
Patented Case
View Patent ↗
Granted: Dec 28, 2004
Filed: Dec 12, 2001
Inventor
Masafumi Nakamura
Assignee (at issue)
NEC 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.