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:
Aug. 11, 2026
Filed:
Feb. 24, 2023
Hrl Laboratories, Llc, Malibu, CA (US);
Brennan Yahata, Santa Barbara, CA (US);
Adam Gross, Santa Monica, CA (US);
Christopher Henry, Thousand Oaks, CA (US);
Darby Laplant, Ventura, CA (US);
Amber Sucich, Calabasas, CA (US);
Raymond Nguyen, Anaheim, CA (US);
Christine Kim, Los Angeles, CA (US);
HRL Laboratories, LLC, Malibu, CA (US);
Abstract
The disclosed technology provides a nanofunctionalized magnetic material feedstock comprising: from 50 wt % to 99.5 wt % of magnetic microparticles having an average microparticle effective diameter from 1 micron to 500 microns; from 0.4 wt % to 40 wt % of one or more rare earth elements; and from 0.1 wt % to 10 wt % of metal-containing grain-refining nanoparticles, wherein at least 1 wt % of the grain-refining nanoparticles are chemically and/or physically disposed on surfaces of the magnetic microparticles. The nanofunctionalized magnetic material feedstock is processed using high-throughput laser-based additive manufacturing to optimize the architecture of NdFeB or other magnets, generating site-specific, demagnetization-resistant microstructures. This disclosure teaches a rapid, single-step laser-based process to tailor the easy axis alignment, grain size, and microstructure of a permanent magnet at corners and edges to resist demagnetization.