Invention Grant
- Patent Title: Magnetic sheet and wireless power module comprising same
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Application No.: US17056555Application Date: 2019-05-14
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Publication No.: US11694829B2Publication Date: 2023-07-04
- Inventor: In Seong Sohn , Seok Bae , Dong Hyeok Choi
- Applicant: LG INNOTEK CO., LTD.
- Applicant Address: KR Seoul
- Assignee: LG INNOTEK CO., LTD.
- Current Assignee: LG INNOTEK CO., LTD.
- Current Assignee Address: KR Seoul
- Agency: Ked & Associates, LLP
- Priority: KR 20180061265 2018.05.29
- International Application: PCT/KR2019/005761 2019.05.14
- International Announcement: WO2019/231142A 2019.12.05
- Date entered country: 2020-11-18
- Main IPC: H01F1/147
- IPC: H01F1/147 ; H02J50/10

Abstract:
A magnetic sheet according to an embodiment of the present invention comprises: a first soft magnetic layer including a first surface and a second surface opposite to the first surface; a first resin layer disposed on the first surface of the first soft magnetic layer and having a first viscosity; a second soft magnetic layer disposed on the first resin layer; and a second resin layer disposed between the first soft magnetic layer and the first resin layer and having a second viscosity different from the first viscosity, wherein the second resin layer comprises a plurality of magnetic particles, the first soft magnetic layer includes a plurality of crack areas propagated from the first surface toward the second surface, and a part of the second resin layer is disposed in the plurality of crack areas.
Public/Granted literature
- US20210249166A1 MAGNETIC SHEET AND WIRELESS POWER MODULE COMPRISING SAME Public/Granted day:2021-08-12
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