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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 10439447 B1

PDFFull Text
Date of Patent:
Oct. 08, 2019

Filed:

Oct. 14, 2016

Method of manufacturing magnetic shielding block for wireless power chargers

Applicant:

Lg Innotek Co., Ltd., Seoul, KR;

Inventors:

Yun Bok Lee, Seoul, KR;

Sang Won Lee, Seoul, KR;

Hyung Jun Lim, Seoul, KR;

Assignee:

LG INNOTEK CO., LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Mathieu D Vargot

Int. Cl.
CPC ...
H02J 50/70 (2016.01); G01R 31/12 (2006.01); H02J 50/23 (2016.01); H02J 50/40 (2016.01); G01R 33/12 (2006.01); H01F 1/03 (2006.01); H01F 41/02 (2006.01); H02J 7/02 (2016.01); H05K 9/00 (2006.01); G01R 33/00 (2006.01); G01R 33/025 (2006.01); H01F 1/26 (2006.01); H01F 27/36 (2006.01); H01F 38/14 (2006.01); H02J 50/12 (2016.01);
U.S. Cl.
CPC ...
H02J 50/70 (2016.02); G01R 33/0076 (2013.01); G01R 33/025 (2013.01); G01R 33/1223 (2013.01); H01F 1/0306 (2013.01); H01F 1/26 (2013.01); H01F 27/365 (2013.01); H01F 38/14 (2013.01); H01F 41/02 (2013.01); H02J 7/025 (2013.01); H02J 50/23 (2016.02); H02J 50/40 (2016.02); H05K 9/0075 (2013.01); G01R 31/1227 (2013.01); H02J 50/12 (2016.02);
Abstract

Embodiments provide a magnetic shield for wireless power chargers and a method of manufacturing the same. The method includes forming flake powder having flake-type particles, forming an oxide film by performing oxygen heat treatment on the surface of the flake powder, performing insulation treatment on the surface of the flake powder provided with the oxide film formed thereon, and producing a sendust block by mixing and melting the insulation-treated flake powder and insulative resin powder. Therefore, a magnetic shield having high insulation characteristics and magnetic permeability may be provided.

Find Patent Forward Citations

Lee, Yun. (2019). Method of manufacturing magnetic shielding block for wireless power chargers (U.S. Patent No. 10439447). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10439447

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

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