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. 29, 2009
Filed:
Feb. 27, 2008
Hidetoshi Koka, Hitachi, JP;
Hiroshi Kanazawa, Hitachiota, JP;
Susumu Terumoto, Numazu, JP;
Masanori Nakagawa, Susono, JP;
Hidetoshi Koka, Hitachi, JP;
Hiroshi Kanazawa, Hitachiota, JP;
Susumu Terumoto, Numazu, JP;
Masanori Nakagawa, Susono, JP;
Kokusan Denki Co., Ltd., Shizuoka, JP;
Abstract
An electrical rotating machine with permanent magnets which is configured such that the ratio of the number of magnetic poles of permanent magnetsto the number of magnetic poles of coilsis at 10:9 or 8:9. The coilsare configured such that a middle coil U− and two adjacent coils U+, U+ on both sides thereof are in-phase connected to be in-phase coils for each phase, and there is satisfied the relationship that T>Tand T>T, where Tis the turn number of the middle coil U−, and Tand Tare the turn numbers of the adjacent coils U+, U+.