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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.:

US 12749619 B1

PDFFull Text
Date of Patent:
Sep. 29, 2026

Filed:

Jan. 08, 2025

Compound for bonded magnet, bonded magnet, method of producing same, and resin composition for bonded magnets

Applicant:

Nichia Corporation, Anan, JP;

Inventors:

Satoshi Yamanaka, Tokushima, JP;

Takayuki Yano, Tokushima, JP;

Shuichi Tada, Komatsushima, JP;

Masahiro Abe, Tokushima, JP;

Kenta Iwai, Anan, JP;

Assignee:

NICHIA CORPORATION, Anan, JP;

Attorney:

Hunton Andrews Kurth

Primary Examiner:

Mohammad M Ameen

Int. Cl.
CPC ...
H01F 41/02 (2006.01); B29B 7/88 (2006.01); B29C 45/00 (2006.01); H01F 1/057 (2006.01); B29K 77/00 (2006.01); B29K 505/00 (2006.01);
U.S. Cl.
CPC ...
H01F 41/0253 (2013.01); B29B 7/88 (2013.01); B29C 45/0001 (2013.01); H01F 1/0571 (2013.01); B29K 2077/00 (2013.01); B29K 2505/00 (2013.01); B29K 2995/0008 (2013.01);
Abstract

A method of producing a compound for bonded magnets, the method including: heat-curing a thermosetting resin and a curing agent having a ratio of the number of reactive groups of the curing agent to the number of reactive groups of the thermosetting resin of at least 2 but not higher than 11 to obtain an additive for bonded magnets; and kneading the additive for bonded magnets, magnetic powder, and a thermoplastic resin to obtain a compound for bonded magnets in which a filling ratio of the magnetic powder is at least 91.5% by mass.

Find Patent Forward Citations

Yamanaka, Satoshi. (2026). Compound for bonded magnet, bonded magnet, method of producing same, and resin composition for bonded magnets (U.S. Patent No. 12749619). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12749619

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

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