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:
Feb. 15, 2022
Filed:
Sep. 25, 2018
Applicant:
Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;
Inventors:
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
G01R 33/02 (2006.01); H01F 10/32 (2006.01); G01R 33/028 (2006.01); H01F 7/02 (2006.01); H01F 41/30 (2006.01); G01R 33/07 (2006.01); G01R 33/09 (2006.01); G01R 19/00 (2006.01); G01R 15/20 (2006.01); G01R 33/06 (2006.01); G01R 33/00 (2006.01);
U.S. Cl.
CPC ...
H01F 10/3218 (2013.01); G01R 15/207 (2013.01); G01R 19/0092 (2013.01); G01R 33/02 (2013.01); G01R 33/028 (2013.01); G01R 33/06 (2013.01); G01R 33/07 (2013.01); G01R 33/09 (2013.01); H01F 7/0294 (2013.01); H01F 41/302 (2013.01); G01R 33/0023 (2013.01); G01R 33/093 (2013.01);
Abstract
A permanent magnet comprising an antiferromagnetic layer and a ferromagnetic layer having a first sub-layer made of a first type of ferromagnetic material, the first type of ferromagnetic material being an at least partially crystallized alloy of iron and cobalt, and a second sub-layer made of a second type of ferromagnetic material, this second type of ferromagnetic material also being an alloy of iron and cobalt in which the proportion of face-centered cubic crystals is less than the proportion of face-centered cubic crystals in the first type of ferromagnetic material.