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:
Apr. 26, 2005
Filed:
Jul. 24, 2002
Yutaro Kaneko, Yokohama, JP;
Shinichiro Kitada, Tokyo, JP;
Toshio Kikuchi, Yoosuka, JP;
Takashi Tsuneyoshi, Yokohama, JP;
Yutaro Kaneko, Yokohama, JP;
Shinichiro Kitada, Tokyo, JP;
Toshio Kikuchi, Yoosuka, JP;
Takashi Tsuneyoshi, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A motor/generator () comprises a permanent magnets () having a V-shaped surface projecting in the center of a rotor (). These permanent magnets () are disposed so that the V-shaped surface faces the center of the rotor (). In this way, the permanent magnets () are prevented from sliding on the fitting surfaces () of the insertion holes (), and the permanent magnets () can be fixed at predetermined positions. Further, magnetic losses caused by the rotor () can be reduced, and efficiency of the motor/generator can be improved.