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:
Dec. 30, 2008
Filed:
May. 07, 2007
Hiroshi Kanazawa, Chiyoda-ku, JP;
Takashi Kobayashi, Chiyoda-ku, JP;
Noriaki Hino, Chiyoda-ku, JP;
Shinji Shirakawa, Chiyoda-ku, JP;
Keiichi Mashino, Chiyoda-ku, JP;
Masanori Tsuchiya, Hitachinaka, JP;
Hiroshi Kanazawa, Chiyoda-ku, JP;
Takashi Kobayashi, Chiyoda-ku, JP;
Noriaki Hino, Chiyoda-ku, JP;
Shinji Shirakawa, Chiyoda-ku, JP;
Keiichi Mashino, Chiyoda-ku, JP;
Masanori Tsuchiya, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An AC generator comprises a rotor and a stator having a three-phase winding. A three-phase inverter is connected to the three-phase winding. Here, the three-phase winding comprises at least two independent three-phase windings. Switching elements for respective phases of the three-phase inverter are connected in parallel by the number of the independent three-phase windings, and in-phase windings are individually connected to their parallel switching elements.