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:
Oct. 30, 2012
Filed:
May. 09, 2011
Applicants:
Kazuya Fukui, Echizen, JP;
Takahiro Hashimoto, Echizen, JP;
Inventors:
Kazuya Fukui, Echizen, JP;
Takahiro Hashimoto, Echizen, JP;
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/057 (2006.01);
U.S. Cl.
CPC ...
Abstract
A rare earth sintered magnet consists essentially of 26-36 wt % R, 0.5-1.5 wt % B, 0.1-2.0 wt % Ni, 0.1-3.0 wt % Si, 0.05-1.0 wt % Cu, 0.05-4.0 wt % M, and the balance of T and incidental impurities wherein R is a rare earth element, T is Fe or Fe and Co, M is selected from Ga, Zr, Nb, Hf, Ta, W, Mo, Al, V, Cr, Ti, Ag, Mn, Ge, Sn, Bi, Pb, and Zn. Simultaneous addition of Ni, Si, and Cu ensures magnetic properties and corrosion resistance.