Granted Patent
Utility
US 6,815,858 · App. 10/245,589
Permanent magnet rotating electric machine
Inventors:
Yutaka Matsunobu, Fumio Tajima, Shouichi Kawamata, Takashi Yasuhara
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Sep 18, 2002
Inventors
Yutaka Matsunobu
Fumio Tajima
Shouichi Kawamata
Takashi Yasuhara
Assignee (at issue)
HITACHI, 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.