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. 10, 2017
Filed:
Oct. 09, 2013
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/055 (2006.01); B22F 3/12 (2006.01); B22F 5/00 (2006.01); H01F 1/053 (2006.01); H01F 41/02 (2006.01); H01F 1/057 (2006.01); B22F 7/06 (2006.01);
U.S. Cl.
CPC ...
H01F 1/0557 (2013.01); B22F 3/12 (2013.01); B22F 5/00 (2013.01); H01F 1/0536 (2013.01); H01F 41/0266 (2013.01); H01F 41/0293 (2013.01); B22F 7/06 (2013.01); B22F 2302/25 (2013.01); B22F 2302/45 (2013.01); B22F 2998/10 (2013.01); B22F 2999/00 (2013.01); C22C 2202/02 (2013.01); H01F 1/0577 (2013.01);
Abstract
In at least one embodiment, a single sintered magnet is provided having a concentration profile of heavy rare-earth (HRE) elements within a continuously sintered rare-earth (RE) magnet bulk. The concentration profile may include at least one local maximum of HRE element concentration within the bulk such that a coercivity profile of the magnet has at least one local maximum within the bulk. The magnet may be formed by introducing alternating layers of an HRE containing material and a magnetic powder into a mold, pressing the layers into a green compact, and sintering the green compact to form a single, unitary magnet.