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:
Nov. 24, 2015
Filed:
May. 10, 2011
Toru Maeda, Itami, JP;
Asako Watanabe, Itami, JP;
Toru Maeda, Itami, JP;
Asako Watanabe, Itami, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Abstract
The present invention provides a powder for a magnetic member being excellent in moldability and difficult to oxidize, a powder compact produced from the powder, and a magnetic member suitable for a raw material of a magnetic member such as a rare earth magnet. A powder for a magnetic member includes magnetic particleswhich constitute the powder for a magnetic member and each of which is composed of less than 40% by volume of a hydrogen compoundof a rare earth element, and the balance composed of an iron-containing materialwhich contains iron and an iron-boron alloy containing iron and boron. The hydrogen compoundof a rare earth element is dispersed in a phase of the iron-containing material. An antioxidant layerhaving a low-oxygen permeability coefficient is provided on the surface of each of the magnetic particles