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. 07, 2010
Filed:
Mar. 18, 2008
Matahiro Komuro, Hitachi, JP;
Yuichi Satsu, Hitachi, JP;
Takao Imagawa, Mito, JP;
Katsumi Ishikawa, Hitachinaka, JP;
Takeyuki Itabashi, Yasugi, JP;
Matahiro Komuro, Hitachi, JP;
Yuichi Satsu, Hitachi, JP;
Takao Imagawa, Mito, JP;
Katsumi Ishikawa, Hitachinaka, JP;
Takeyuki Itabashi, Yasugi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A magnet which includes ferromagnetic powder to be mainly a mother phase containing iron or cobalt. The ferromagnetic powder is provided with a high-resistance layer which has a resistance higher than or equal to ten times as high as a resistance of the mother phase and a Vickers hardness lower than a Vickers hardness of the mother phase. The high-resistance layer is being formed partially or entirely on the surface of the ferromagnetic powder.