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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 11348712 B1

PDFFull Text
Date of Patent:
May. 31, 2022

Filed:

Sep. 28, 2018

Insulator-coated soft magnetic powder, powder magnetic core, magnetic element, electronic device, and vehicle

Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Toshikuni Sato, Hachinohe, JP;

Atsushi Nakamura, Hachinohe, JP;

Assignee:

Seiko Epson Corporation;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Alexandre F Ferre

Int. Cl.
CPC ...
H01F 1/33 (2006.01); H01F 27/24 (2006.01); B22F 1/02 (2006.01); B22F 1/00 (2022.01); C03C 8/04 (2006.01); C03C 3/066 (2006.01); H01F 3/08 (2006.01); H01F 1/24 (2006.01); G11B 5/66 (2006.01); B22F 1/05 (2022.01); B22F 1/16 (2022.01); H01F 17/04 (2006.01); H01F 17/06 (2006.01); H01F 27/28 (2006.01);
U.S. Cl.
CPC ...
H01F 1/33 (2013.01); B22F 1/05 (2022.01); B22F 1/16 (2022.01); C03C 3/066 (2013.01); C03C 8/04 (2013.01); G11B 5/66 (2013.01); H01F 1/24 (2013.01); H01F 3/08 (2013.01); H01F 27/24 (2013.01); B22F 2301/35 (2013.01); B22F 2302/25 (2013.01); B22F 2304/10 (2013.01); C03C 2207/00 (2013.01); H01F 17/062 (2013.01); H01F 27/2823 (2013.01); H01F 2017/048 (2013.01);
Abstract

An insulator-coated soft magnetic powder includes a plurality of particles each including a core which contains a soft magnetic material, and an insulating layer which is provided on the surface of the core and contains a glass material including BiOas a main component. The content of an alkali metal in the insulating layer is 5 mol % or less. The glass material further contains at least one of ZnO and BO. The content of BiOin the glass material is 40 mol % or more and 80 mol % or less.

Find Patent Forward Citations

Sato, Toshikuni. (2022). Insulator-coated soft magnetic powder, powder magnetic core, magnetic element, electronic device, and vehicle (U.S. Patent No. 11348712). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11348712

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

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