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. 01, 2009
Filed:
Sep. 22, 2005
Yuji Enomoto, Hitachi, JP;
Haruo Koharagi, Hitachi, JP;
Motoya Ito, Hitachinaka, JP;
Katsuyuki Yamasaki, Chiba, JP;
Ryoso Masaki, Hitachi, JP;
Shoji Ohiwa, Iwatsuiki, JP;
Chio Ishihara, Tokyo, JP;
Masahiro Mita, Fukaya, JP;
Yuji Enomoto, Hitachi, JP;
Haruo Koharagi, Hitachi, JP;
Motoya Ito, Hitachinaka, JP;
Katsuyuki Yamasaki, Chiba, JP;
Ryoso Masaki, Hitachi, JP;
Shoji Ohiwa, Iwatsuiki, JP;
Chio Ishihara, Tokyo, JP;
Masahiro Mita, Fukaya, JP;
Japan Servo Co., Ltd., Tokyo, JP;
Hitachi Powdered Metals Co., Ltd., Matsudo-shi, JP;
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
An electric rotating machine having permanent magnets having a rotor having a plurality of permanent magnets, a stator iron core disposed in opposite relation with the rotor, and a stator winding wound around the stator core, wherein the stator core is constituted by a yoke and a plurality of teeth portions disposed to the yoke. The teeth portions are projected towards the inner periphery of the rotor. The teeth portions are made of amorphous magnetic material.