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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 11337345 B1

PDFFull Text
Date of Patent:
May. 17, 2022

Filed:

Feb. 25, 2021

Magnetic field shielding sheet for a wireless charger, method for manufacturing same, and receiving apparatus for a wireless charger using the sheet

Applicant:

Virginia Wireless and Streaming Technologies Llc, Ashburn, VA (US);

Inventors:

Dong Hoon Lee, Yongin-si, KR;

Kil Jae Jang, Seoul, KR;

Assignee:

VIRGINIA WIRELESS AND STREAMING TECHNOLOGIES LLC, Ashburn, VA (US);

Attorney:

Capitol IP Law Group, PLLC

Primary Examiner:

Kevin M Bernatz

Int. Cl.
CPC ...
H02J 50/12 (2016.01); H02J 50/70 (2016.01); H01F 38/14 (2006.01); H01F 27/36 (2006.01); H01Q 7/06 (2006.01); H05K 9/00 (2006.01); H02J 7/00 (2006.01); B32B 37/12 (2006.01); B32B 37/18 (2006.01); B32B 38/00 (2006.01); H04B 5/00 (2006.01); H01Q 7/08 (2006.01);
U.S. Cl.
CPC ...
H05K 9/0075 (2013.01); B32B 37/12 (2013.01); B32B 37/18 (2013.01); B32B 38/0004 (2013.01); H01F 27/36 (2013.01); H01F 38/14 (2013.01); H01Q 7/06 (2013.01); H01Q 7/08 (2013.01); H02J 7/00 (2013.01); H02J 7/0042 (2013.01); H02J 50/12 (2016.02); H02J 50/70 (2016.02); H04B 5/0037 (2013.01); H05K 9/0081 (2013.01); H05K 9/0088 (2013.01); Y10T 156/10 (2015.01); Y10T 428/249955 (2015.04); Y10T 428/249956 (2015.04); Y10T 428/25 (2015.01); Y10T 428/2848 (2015.01); Y10T 428/32 (2015.01);
Abstract

Provided are a magnetic field shield sheet for a wireless charger, a method of manufacturing the sheet, and a receiver for the wireless charger by using the sheet. The sheet includes at least one layer thin magnetic sheet made of an amorphous ribbon separated into a plurality of fine pieces; a protective film that is adhered on one surface of the thin magnetic sheet via a first adhesive layer provided on one side of the protective film; and a double-sided tape that is adhered on the other surface of the thin magnetic sheet via a second adhesive layer provided on one side of the double-sided adhesive tape, wherein gaps among the plurality of fine pieces are filled by some parts of the first and second adhesive layers, to thereby isolate the plurality of fine pieces.

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