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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 12763238 B1

PDFFull Text
Date of Patent:
Oct. 13, 2026

Filed:

Jun. 06, 2023

Ferrite composition, ferrite sintered body, and electronic device

Applicant:

Tdk Corporation, Tokyo, JP;

Inventors:

Kouichi Kakuda, Tokyo, JP;

Yuya Oshima, Tokyo, JP;

Kenji Komorita, Tokyo, JP;

Shigeshi Osawa, Yurihonjo-city, JP;

Shinichi Kondo, Tokyo, JP;

Hiroyuki Tanoue, Tokyo, JP;

Kaori Sasaki, Tokyo, JP;

Takuya Niibori, Tokyo, JP;

Yukio Takahashi, Tokyo, JP;

Hidenobu Umeda, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Matthew E Hoban

Int. Cl.
CPC ...
H01F 1/34 (2006.01); C04B 35/26 (2006.01);
U.S. Cl.
CPC ...
H01F 1/344 (2013.01); C04B 35/265 (2013.01); C04B 2235/3274 (2013.01); C04B 2235/3277 (2013.01); C04B 2235/3293 (2013.01); C04B 2235/3298 (2013.01);
Abstract

A ferrite composition includes a main component and a sub component. The main component includes an iron oxide in terms of FeO, a copper oxide in terms of CuO, a zinc oxide in terms of ZnO, and a nickel oxide as its remainder. The sub component includes a cobalt oxide in terms of CoO, a tin oxide in terms of SnO, and a bismuth oxide in terms of BiO. A is −3.5 or more and 1.0 or less, provided that A=(α−18)/β; is defined, in which α is an amount of the zinc oxide represented by mol % in terms of ZnO in the main component, and β is an amount of the cobalt oxide represented by parts by weight in terms of CoOwith respect to 100 parts by weight of the main component.

Find Patent Forward Citations

Kakuda, Kouichi. (2026). Ferrite composition, ferrite sintered body, and electronic device (U.S. Patent No. 12763238). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12763238

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

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