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. 05, 2025

Filed:

May. 11, 2022
Applicant:

Rogers Corporation, Chandler, AZ (US);

Inventors:

Yajie Chen, Brighton, MA (US);

Lance Young, Shrewsbury, MA (US);

Qifan Li, Hubei, CN;

Megan Hott, Boston, MA (US);

Assignee:

ROGERS CORPORATION, Chandler, AZ (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 1/34 (2006.01); C04B 35/26 (2006.01); C04B 35/626 (2006.01); C04B 35/64 (2006.01); C08K 3/22 (2006.01); H01F 1/36 (2006.01); H01F 1/37 (2006.01);
U.S. Cl.
CPC ...
H01F 1/344 (2013.01); C04B 35/2633 (2013.01); C04B 35/6261 (2013.01); C04B 35/64 (2013.01); C08K 3/22 (2013.01); C04B 2235/3256 (2013.01); C04B 2235/3274 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/6567 (2013.01); C04B 2235/6583 (2013.01); C08K 2003/2289 (2013.01); C08K 2201/01 (2013.01);
Abstract

In an aspect, a CoZ-type ferrite comprises oxides of at least Me, Co, Mo, Li, and Fe; wherein Me is at least one of Ba or Sr. In another aspect, the CoZ-type ferrite comprises a Z-type hexaferrite an amount of lithium molybdate. In another aspect, the CoZ-type ferrite has a formula LiMoO·BaSrCoMe'Me″FeO, wherein Me′ is at least one of Ti, Mo, Ru, Ir, Zr, or Sn; Me″ is at least one of Zn, Mn, or Mg; x is 0 to 3; y is 0 to 1.8; z is 0 to 1.8; and m is −4 to 4. In yet another aspect, a method of making a CoZ-type ferrite comprises milling an initial CoZ-type ferrite and LiMoOto form a mixed ferrite; and calcining the mixed ferrite to form the CoZ-type ferrite.


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