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. 08, 2026

Filed:

Feb. 05, 2021
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Natsuki Sato, Osaka, JP;

Naoki Kurizoe, Osaka, JP;

Ryosuke Sawa, Osaka, JP;

Tatsuro Yoshioka, Osaka, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/33 (2006.01); C04B 28/00 (2006.01); H01F 1/06 (2006.01); H01F 1/11 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
H01F 1/33 (2013.01); C04B 28/005 (2013.01); H01F 1/06 (2013.01); H01F 1/111 (2013.01); C04B 2111/00422 (2013.01); C04B 2235/3284 (2013.01); C04B 2235/405 (2013.01);
Abstract

Provided is a composite member including: an inorganic matrix part made from an inorganic substance that includes at least one of a metal oxide or a metal oxide hydroxide as a main component, contains substantially no single metal and alloy, and is a diamagnetic substance or a paramagnetic substance; and a ferromagnetic material part that is present inside the inorganic matrix part, directly bonds with the inorganic substance making up the inorganic matrix part, and is made from a ferromagnetic substance. In the inorganic matrix part, particles of the inorganic substance are continuously present, and the inorganic matrix part has a larger volume ratio than that of the ferromagnetic material part.


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