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:
Nov. 17, 2009
Filed:
Oct. 07, 2004
Applicants:
Yutaka Osawa, Kiryu, JP;
Shingo Watanabe, Kiryu, JP;
Inventors:
Yutaka Osawa, Kiryu, JP;
Shingo Watanabe, Kiryu, JP;
Assignee:
Mitsuba Corporation, Kiryu-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a rotary electric machine, coils to be wound around an armature are wound so as to have a good magnetic balance. In a rotary electric machine formed with four poles, ten slots, and twenty commentator segments, a pair of coils that respectively conduct an electric current to the commutator segments adjoining an arbitrary commutator segment at both sides in the circumferential direction are caused to face permanent magnets, that are adjoining poles, to be poles opposite from each other, and one coil is wound in a normal winding state, and the other coil, in a reverse winding state.