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:
Feb. 28, 2023

Filed:

Aug. 14, 2019
Applicant:

Amosense Co., Ltd., Cheonan-si, KR;

Inventors:

Kil Jae Jang, Seongnam-si, KR;

Dong Hoon Lee, Yongin-si, KR;

Assignee:

AMOSENSE CO., LTD., Cheonan-si, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 10/26 (2006.01); H02J 50/20 (2016.01); H02J 50/70 (2016.01); H01F 38/14 (2006.01); H01F 41/02 (2006.01); H01F 41/32 (2006.01); H01F 27/36 (2006.01); H01F 10/00 (2006.01); H01F 10/13 (2006.01); H01F 10/14 (2006.01); H05K 9/00 (2006.01);
U.S. Cl.
CPC ...
H01F 10/265 (2013.01); H01F 27/366 (2020.08); H01F 38/14 (2013.01); H01F 41/0266 (2013.01); H01F 41/32 (2013.01); H02J 50/20 (2016.02); H02J 50/70 (2016.02); H01F 10/007 (2013.01); H01F 10/131 (2013.01); H01F 10/138 (2013.01); H01F 10/142 (2013.01); H05K 9/0075 (2013.01);
Abstract

Provided are a roll-shaped magnetic field shielding sheet, a method of manufacturing a magnetic field shielding sheet, and an antenna module using the same, which can improve the efficiency of the overall production process by improving a heat treatment process for a thin film magnetic sheet. The magnetic field shielding sheet includes: at least one thin film magnetic sheet; an insulating layer or insulating layers formed on one or either side of the at least one thin film magnetic sheet; and an adhesive layer formed between the insulating layers of the adjacent thin film magnetic sheets to laminate and bond the thin film magnetic sheets, wherein the thin film magnetic sheet is flake-treated to be divided into a plurality of magnetic substance fragments.


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