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:
May. 11, 2010
Filed:
Nov. 24, 2006
Yuichi Yoshikawa, Osaka, JP;
Yuichi Tanabe, Fukui, JP;
Hiroshi Murakami, Osaka, JP;
Hideharu Hiwaki, Osaka, JP;
Koji Kuyama, Tottori, JP;
Akio Ando, Tottori, JP;
Yuichi Yoshikawa, Osaka, JP;
Yuichi Tanabe, Fukui, JP;
Hiroshi Murakami, Osaka, JP;
Hideharu Hiwaki, Osaka, JP;
Koji Kuyama, Tottori, JP;
Akio Ando, Tottori, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a stator core having 'N' slots, a tooth-width centerline of a linear yoke and a first extension line extended horizontally from a center of rotary shaft toward the linear yoke form a first angle. Assume there are first point on the first extension line at a first distance from the center, a second extension line drawn at a second distance horizontally from the center toward the linear yoke and extended vertically toward arc-shaped yokes, and a third extension line drawn from the center toward teeth ends of the linear yokes with angle 'K'. The second and third extension line intersect at a second point. A line between the first and second points intersects with the first extension line, thereby forming the first angle. In this structure, 0<a<b, and (360/2N−60/2N)°<K<(360/2N+60/2N)° are established, where “a”, “b” are the first and the second distances respectively.