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:
Aug. 18, 2009
Filed:
Aug. 30, 2006
Applicants:
Masato Yamamoto, Kyoto, JP;
Yoichi Mori, Kyoto, JP;
Hitoshi Urakami, Kyoto, JP;
Inventors:
Assignee:
Nidec Corporation, Kyoto, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/28 (2006.01); H02K 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
An extension part of an insulator covering a part of a coupling portion of a laminated core of an armature is inclined to the inside in the radial direction along the coupling part. A inclined face which is extended inward in the radial direction is formed in the cylindrical part of the armature. By forming the armature in an annular shape, a gap which is almost parallel or narrowed to the inside in the radial direction is formed between neighboring inclined faces. The gap is formed to be smaller than the diameter of a conductor.