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:
Mar. 19, 2002
Filed:
Sep. 11, 2000
Shinichi Wakui, Hitachi, JP;
Miyoshi Takahashi, Hitachi, JP;
Kazumasa Ide, Hitachiota, JP;
Ryoichi Shiobara, Hitachi, JP;
Hidenari Otani, Hitachi, JP;
Akitomi Semba, Hitachi, JP;
Junji Sato, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In order to make any voltage imbalance between the winding circuits of each phase small and to simplify the edge structure of the armature winding, in a rotating electric machine of four poles, having slots of 9n (1≦n≦7) pieces provided for the stator core with a double-layer winding per each slot, and an armature winding of three-phase star connection being constituted with three winding circuits connected in parallel in each phase, two of the four poles of each phase are constituted with only one of the three winding circuits.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile