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. 02, 2014
Filed:
Feb. 17, 2011
Takayuki Kanda, Hitachi, JP;
Matahiro Komuro, Hitachi, JP;
Hiroyuki Suzuki, Hitachi, JP;
Yuichi Satsu, Hitachi, JP;
Takayuki Kanda, Hitachi, JP;
Matahiro Komuro, Hitachi, JP;
Hiroyuki Suzuki, Hitachi, JP;
Yuichi Satsu, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Characteristics of a magnetic material are improved without using a heavy rare earth element as a scarce resource. By incorporating fluorine into a magnetic powder and controlling the crystal orientation in crystal grains, a magnetic material securing magnetic characteristics such as coercive force and residual flux density can be fabricated. As a result, the resource problem with heavy rare earth elements can be solved, and the magnetic material can be applied to magnetic circuits that require a high energy product, including various rotating machines and voice coil motors of hard discs.