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.

Date of Patent:
Feb. 24, 2026

Filed:

Sep. 10, 2019
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Akito Iwasaki, Tokyo, JP;

Yoshikazu Nakano, Tokyo, JP;

Yasutaka Nakamura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/057 (2006.01); C22C 38/00 (2006.01); H01F 41/02 (2006.01);
U.S. Cl.
CPC ...
H01F 1/057 (2013.01); C22C 38/002 (2013.01); C22C 38/005 (2013.01); H01F 41/0293 (2013.01); C22C 2202/02 (2013.01);
Abstract

Provided is a rare earth magnet alloy having a tetragonal RFeB crystal structure, including: a main phase containing, as main constituent elements, at least one kind selected from the group consisting of: Nd; La; and Sm, Fe, and B; and a sub-phase containing, as main constituent elements, at least one kind selected from the group consisting of: Nd; La; and Sm, and O, wherein La substitutes for at least one of a Nd(f) site or a Nd(g) site, wherein Sm substitutes for at least one of a Nd(f) site or a Nd(g) site, wherein La segregates in the sub-phase, and wherein Sm is dispersed in the main phase and the sub-phase without segregation.


Find Patent Forward Citations

Iwasaki, Akito. (2026). Rare earth magnet alloy, method of manufacturing same, rare earth magnet, rotor, and rotating machine (U.S. Patent No. 12562296). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12562296

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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