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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 12362082 B1

PDFFull Text
Date of Patent:
Jul. 15, 2025

Filed:

May. 22, 2020

Coercivity-enhanced iron nitride nanoparticles with high saturation magnetization

Applicant:

Niron Magnetics, Inc., Minneapolis, MN (US);

Inventors:

Francis Johnson, Minneapolis, MN (US);

Yiming Wu, Shoreview, MN (US);

John Michael Larson, Northfield, MN (US);

L. Anderson Blackburn, San Carlos, CA (US);

Assignee:

NIRON MAGNETICS, INC., Minneapolis, MN (US);

Attorney:

BakerHostetler

Primary Examiner:

Jane L Stanley

Int. Cl.
CPC ...
H01F 1/047 (2006.01); B22F 1/054 (2022.01); B22F 1/16 (2022.01); C04B 35/58 (2006.01); C04B 35/628 (2006.01); C23C 8/26 (2006.01);
U.S. Cl.
CPC ...
H01F 1/047 (2013.01); B22F 1/054 (2022.01); B22F 1/16 (2022.01); C04B 35/58042 (2013.01); C04B 35/62813 (2013.01); C04B 35/62884 (2013.01); C04B 35/62897 (2013.01); C23C 8/26 (2013.01); B22F 2301/35 (2013.01); B22F 2302/25 (2013.01); B22F 2304/05 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3272 (2013.01); C04B 2235/3852 (2013.01); C04B 2235/405 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/5454 (2013.01); C04B 2235/85 (2013.01);
Abstract

Iron nitride nanoparticles and magnet materials made from iron nitride nanoparticles are described. The iron nitride nanoparticles have a core and a shell morphology. The shell is configured to provide a means to nitride the core. The magnetic materials are characterized as having an Msat greater than about 160 emu/g and a coercivity greater than about 700 Oe.

Find Patent Forward Citations

Johnson, Francis. (2025). Coercivity-enhanced iron nitride nanoparticles with high saturation magnetization (U.S. Patent No. 12362082). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12362082

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

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