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:
Sep. 14, 2010
Filed:
Jul. 20, 2007
Yuji Enomoto, Hitachi, JP;
Motoya Ito, Hitachinaka, JP;
Kenji Miyata, Hitachinaka, JP;
Chio Ishihara, Tokyo, JP;
Ryoso Masaki, Hitachi, JP;
Yasuaki Motegi, Kiryu, JP;
Kouki Isozaki, Kiryu, JP;
Tadashi Sato, Nitta, JP;
Yuji Enomoto, Hitachi, JP;
Motoya Ito, Hitachinaka, JP;
Kenji Miyata, Hitachinaka, JP;
Chio Ishihara, Tokyo, JP;
Ryoso Masaki, Hitachi, JP;
Yasuaki Motegi, Kiryu, JP;
Kouki Isozaki, Kiryu, JP;
Tadashi Sato, Nitta, JP;
Hitachi Industrial Equipment Systems Co., Tokyo, JP;
Abstract
A claw pole type motor includes first and second claw poles opposed to each other and each including a radial yoke portion having an inner diameter side and an outer diameter side, a plurality of pole portions arranged on the inner diameter side, and axially extended, and an outer peripheral side yoke portion extending on the outer diameter side. A stator core is provided having an inner diameter side, and is formed so as to cause the pole portions of the first claw pole to be meshed with the pole portions of the second claw pole. A rotor is arranged on the inner diameter side of the stator core with a circumferential gap being defined therebetween. In order to provide high efficiency while simplifying manufacturing, the first and second claw poles are formed by compacting of magnetic powder.