Granted Patent
Utility
US 5,175,482 · App. 07/777,643
Stepping motor control circuit
Inventor:
Koji Deguchi
Patented Case
View Patent ↗
Granted: Dec 29, 1992
Filed: Oct 16, 1991
Inventor
Koji Deguchi
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.