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:
Mar. 29, 2022
Filed:
May. 17, 2018
Applicant:
Hitachi Metals, Ltd., Tokyo, JP;
Inventors:
Masaki Yamamoto, Tokyo, JP;
Yoshinori Kobayashi, Tokyo, JP;
Assignee:
HITACHI METALS, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 1/10 (2006.01); C01G 51/00 (2006.01); C01G 49/00 (2006.01);
U.S. Cl.
CPC ...
H01F 1/10 (2013.01); C01G 51/70 (2013.01); C01P 2002/52 (2013.01); C01P 2006/42 (2013.01);
Abstract
A sintered ferrite magnet represented by the general formula of CaLaFeCoZnexpressing the atomic ratios of metal elements of Ca, La, Fe, Co and Zn, wherein x, y, z, and n [2is a molar ratio represented by 2=(Fe+Co+Zn)/(Ca+La)] meet 0.4<x<0.75, 0.15≤y<0.4, 0.11≤z<0.4, 0.26≤(y+z)<0.65, and 3≤n≤6.