Granted Patent
Utility
US 6,720,701 · App. 10/259,211
Method of manufacturing commutator, apparatus for manufacturing commutator, and commutator
Inventors:
Yuichi Terada, Kazunobu Kanno
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Sep 26, 2002
Inventors
Yuichi Terada
Kazunobu Kanno
Assignee (at issue)
ASMO CO., 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.