Granted Patent
Utility
US 6,750,583 · App. 10/668,584
Motor core and motor using the same
Inventor:
Hiroyasu Fujinaka
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Sep 23, 2003
Inventor
Hiroyasu Fujinaka
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, 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.