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:
Jan. 19, 2010
Filed:
Jul. 24, 2007
Yuji Enomoto, Hitachi, JP;
Motoya Ito, Hitachinaka, JP;
Masashi Kitamura, Mito, JP;
Ryoso Masaki, Hitachi, JP;
Katsuyuki Yamazaki, Chiba, JP;
Shoji Ohiwa, Saitama, JP;
Yasuaki Motegi, Gunma, JP;
Kazuo Asaka, Matsudo, JP;
Chio Ishihara, Tokyo, JP;
Yuji Enomoto, Hitachi, JP;
Motoya Ito, Hitachinaka, JP;
Masashi Kitamura, Mito, JP;
Ryoso Masaki, Hitachi, JP;
Katsuyuki Yamazaki, Chiba, JP;
Shoji Ohiwa, Saitama, JP;
Yasuaki Motegi, Gunma, JP;
Kazuo Asaka, Matsudo, JP;
Chio Ishihara, Tokyo, JP;
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Hitachi Powered Metals Co., Ltd., Chiba, JP;
Japan Servo Co., Ltd., Tokyo, JP;
Abstract
A claw teeth type electric rotary machine comprises a stator including an annular core with claws formed from a powder core and an annular coil installed inside the annular core, and a rotor rotatably positioned inside the stator. An inner edge of the annular core is provided with plural claw poles which are protruded at a predetermined interval in a circumferential direction and extended in an axial direction of the annular core so as to alternately meshes with each other. The stator comprises the annular core with claws, the annular coil, and a molded nonmagnetic potting material filled between the annular core with claws and annular coil, so that the annular core with claws and annular coil are integrated with the molded potting non-magnetic material.