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:
Sep. 29, 2026

Filed:

May. 12, 2021
Applicant:

Rogers Corporation, Chandler, AZ (US);

Inventors:

Yajie Chen, Andover, MA (US);

Yu Wang, Malden, MA (US);

Assignee:

ROGERS CORPORATION, Chandler, AZ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/34 (2006.01); C04B 35/26 (2006.01); C04B 35/626 (2006.01); C04B 35/634 (2006.01); C04B 35/64 (2006.01);
U.S. Cl.
CPC ...
H01F 1/344 (2013.01); C04B 35/2633 (2013.01); C04B 35/6262 (2013.01); C04B 35/63416 (2013.01); C04B 35/64 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/3236 (2013.01); C04B 2235/3274 (2013.01); C04B 2235/3277 (2013.01); C04B 2235/442 (2013.01); C04B 2235/6567 (2013.01); C04B 2235/662 (2013.01); C04B 2235/786 (2013.01);
Abstract

In an aspect, an M-type ferrite, comprises oxides of Me, Me', Me″, Co, Ti, and Fe; wherein Me is at least one of Ba, Sr, or Pb; Me′ is at least one of Ti, Zr, Ru, or Ir; and Me″ is at least one of Mg or Ca. In another aspect, a method of making an M-type ferrite comprises milling ferrite precursor compounds comprising oxides of at least Co, Fe, Ti, Me, Me′, and Me″, to form an oxide mixture; wherein Me comprises at least one of Ba, Sr, or Pb; Me′ is at least one of Ti, Zr, Ru, or Ir; and Me″ is at least one of Mg or Ca; and calcining the oxide mixture in an oxygen or air atmosphere to form the M-type ferrite.


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