The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 2005
Filed:
Sep. 07, 2001
Applicants:
Atsushi Umeda, Okazaki, JP;
Hitoshi Irie, Nagoya, JP;
Inventors:
Atsushi Umeda, Okazaki, JP;
Hitoshi Irie, Nagoya, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K007/22 ; H02K009/00 ;
U.S. Cl.
CPC ...
Abstract
An electric-machine rotor is composed of a field coil, a pair of pole cores having a plurality of claw poles to enclose the field coil, a plurality of auxiliary permanent magnets disposed between the claw poles, a shaft fixed to the pair of pole cores, and a pair of slip rings connected to the field coil. The rotor is provided with a pattern on a surface of the pole cores for indicating the polarity of the claw poles when the field coil is energized.