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.:

US 7528521 B1

PDF
Full Text
Expired
Date of Patent:
May. 05, 2009

Filed:

Jul. 19, 2006
Applicants:

Shinya Naitou, Shizuoka-ken, JP;

Haruyoshi Hino, Shizuoka-ken, JP;

Inventors:

Shinya Naitou, Shizuoka-ken, JP;

Haruyoshi Hino, Shizuoka-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/22 (2006.01);
U.S. Cl.
CPC ...
Abstract

A rotary electric machine comprises a stator including a plurality of teeth which are wound up by coils and a stator yoke core connecting the respective teeth, and a rotor provided with magnets disposed so as to oppose to the teeth, respectively, with a space therebetween. Each of the teeth (tooth) is formed into T shape by laminating a plurality of magnetic steel plates and has a head portion and a leg portion, the head portion being a wider portion of the T-shape which is opposed to the magnet, the leg portion including a coil wind-up portion which has a substantially constant width and an insert portion which is inserted into the stator yoke core, and the coil wind-up portion is formed with a plurality of fitting portions for fitting and fixing the laminated magnetic steel plates together, the fitting portions being arranged so as to align along a center line of the coil wind-up portion.


Find Patent Forward Citations

Naitou, Shinya. (2009). Rotary electric machine and electric wheelchair mounted with rotary electric machine (U.S. Patent No. 7528521). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7528521

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