Granted Patent
Utility
US 6,114,826 · App. 09/066,941
Stepping motor driving apparatus having small time constant regenerative current path
Inventors:
Haruo Nishiura, Fumiyuki Niwa
Patented Case
View Patent ↗
Granted: Sep 5, 2000
Filed: Apr 28, 1998
Inventors
Haruo Nishiura
Fumiyuki Niwa
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.