Granted Patent
Utility
US 6,509,708 · App. 09/930,617
Motor driving circuit using a PWM input signal
Inventors:
Hyun Min CHO, Yong Bae Park
Patented Case
View Patent ↗
Granted: Jan 21, 2003
Filed: Aug 15, 2001
Inventors
Hyun Min CHO
Yong Bae Park
Assignee (at issue)
Fairchild Korea Semiconductor 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.