Granted Patent
Utility
US 6,639,452 · App. 10/319,995
Active bias circuit having Wilson and Widlar configurations
Inventors:
Fuminobu Ono, Yoshikazu Nishimura
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: Dec 16, 2002
Inventors
Fuminobu Ono
Yoshikazu Nishimura
Assignee (at issue)
NEC Compound Semiconductor Devices, 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.