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:
Aug. 02, 2011
Filed:
May. 17, 2010
Yasutaka Shigemoto, Osaka, JP;
Satoshi Hirosawa, Shiga, JP;
Toshio Miyoshi, Osaka, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A nanocomposite magnet according to the present invention has a composition represented by the general formula: RQM(FeT), where R is at least one rare-earth element, Q is at least one element selected from the group consisting of B and C, M is at least one metal element that is selected from the group consisting of Al, Si, Ti, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, Hf, Ta, W, Pt, Au and Pb and that always includes Ti, and T is at least one element selected from the group consisting of Co and Ni. The mole fractions x, y, z and m satisfy the inequalities of 6 at %≦x<10 at %, 10 at %≦y≦17 at %, 0.5 at %≦z≦6 at % and 0≦m≦0.5, respectively. The nanocomposite magnet includes a hard magnetic phase and a soft magnetic phase that are magnetically coupled together. The hard magnetic phase is made of an RFeB-type compound, and the soft magnetic phase includes an α-Fe phase and a crystalline phase with a Curie temperature of 610° C. to 700° C. (ω phase) as its main phases.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile