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:
Aug. 25, 2015

Filed:

May. 08, 2012
Applicants:

Yajie Chen, Malden, MA (US);

Vincent G. Harris, Sharon, MA (US);

Inventors:

Yajie Chen, Malden, MA (US);

Vincent G. Harris, Sharon, MA (US);

Assignee:

Metamagnetics, Inc., Sharon, MA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01B 1/20 (2006.01); C08K 7/16 (2006.01); C08K 3/08 (2006.01); H01B 3/10 (2006.01);
U.S. Cl.
CPC ...
H01B 3/10 (2013.01);
Abstract

A composite material can include a grain component and a nanostructured grain boundary component. The nanostructured grain boundary component can be insulating and magnetic, so as to provide greater continuity of magnetization of the composite material. The grain component can have an average grain size of about 0.5-50 micrometers. The grain boundary component can have an average grain size of about 1-100 nanometers. The nanostructured magnetic grain boundary material has a magnetic flux density of at least about 250 mT. The grain component can comprise MnZn ferrite particles. The nanostructured grain boundary component can comprise NiZn ferrite nanoparticles. Core components and systems thereof can be manufactured from the composite material.


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