公开(公告)号：US10999959B2

公开(公告)日：2021-05-04

申请号：US16796718

申请日：2020-02-20

Applicant: LG ELECTRONICS INC.

Inventor： Jin Bae Kim ,  Dongwon Kang ,  Joungwook Kim

IPC: H05K9/00 ,  H01F1/147

Abstract: The present disclosure relates to a magnetic shielding sheet and a method of preparation thereof. The magnetic shielding sheet includes a magnetic layer, and a protective layer disposed on at least one surface of the magnetic layer. The magnetic layer includes a metal-ceramic composite that is metal powder, on which a ceramic coating layer is formed.

公开(公告)号：US11408060B2

公开(公告)日：2022-08-09

申请号：US16484387

申请日：2018-01-30

Applicant: LG ELECTRONICS INC. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Kyoung Jin Ku ,  Dong Han Kim ,  Joungwook Kim ,  Hangjin Ban ,  Bumdong Sa ,  Eun Soo Park ,  Wook Ha Ryu ,  Kyung-Jun Kim ,  Jinwoo Kim ,  Heh Sang Ahn

IPC: C22C45/10 ,  C23C14/16 ,  C23C14/34 ,  H01J37/34

Abstract: The present invention relates to an amorphous alloy having low frictional resistance and capable of improving abrasion resistance, a target made of the amorphous alloy, and a compressor comprising a layer of the amorphous alloy as a coating layer. According to the present invention, it is possible to secure high hardness and a low elastic modulus of the coating layer by controlling a microstructure having an amorphous phase as a primary phase by using Ti-based three-component to five-component amorphous alloys. As a result, it is possible to prevent the coating layer from being peeled off from a matrix or destroyed, and thus it is possible to achieve the effect of improving reliability or durability of a mechanical apparatus such as a compressor.

公开(公告)号：US20200275588A1

公开(公告)日：2020-08-27

申请号：US16796718

申请日：2020-02-20

Applicant: LG ELECTRONICS INC.

Inventor： Jin Bae Kim ,  Dongwon Kang ,  Joungwook Kim

IPC: H05K9/00 ,  H01F1/147

Abstract: The present disclosure relates to a magnetic shielding sheet and a method of preparation thereof. The magnetic shielding sheet includes a magnetic layer, and a protective layer disposed on at least one surface of the magnetic layer. The magnetic layer includes a metal-ceramic composite that is metal powder, on which a ceramic coating layer is formed.

公开(公告)号：US12173379B2

公开(公告)日：2024-12-24

申请号：US17773801

申请日：2020-09-29

Applicant: LG Electronics Inc.

Inventor： Jin Bae Kim ,  Dongwon Kang ,  Joungwook Kim

IPC: C21D9/46 ,  C21D6/00 ,  C21D8/00 ,  C21D8/12 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/16 ,  C22C38/18 ,  C22C38/34 ,  C22C38/42 ,  H01F1/147

Abstract: Disclosed are a non-oriented electrical steel sheet and a manufacturing method therefore, the sheet ensuring excellent magnetic characteristics by having increased texture intensity of surface (100) through strict control of the content ratio of Si, Al and the like and through final annealing heat treatment in an inert gas atmosphere.

公开(公告)号：US11651879B2

公开(公告)日：2023-05-16

申请号：US16659133

申请日：2019-10-21

Applicant: LG ELECTRONICS INC.

Inventor： Dongwon Kang ,  Joungwook Kim ,  Jin Bae Kim

IPC: H01F1/153 ,  C21D6/00 ,  C22C45/02

CPC classification number: H01F1/15333 ,  C21D6/00 ,  C22C45/02 ,  H01F1/15341 ,  C22C2202/02

Abstract: The present disclosure relates to an iron (Fe)-based amorphous soft magnetic alloy and a method for manufacturing the soft magnetic alloy. According to the present disclosure, there is provided an Fe-based soft magnetic alloy including C and S meeting 1≥a+b≥6, wherein a is an atomic % content of C and b is an atomic % content of S, B meeting 4.5≥x≥13.0, wherein x is an atomic % content of B, Cu meeting 0.2≥y≥1.5, wherein y is an atomic % content of Cu, Al meeting 0.5≥z≥2, wherein z is an atomic % content of Al, and a remaining atomic % content of Fe and other inevitable impurities, wherein the Fe-based soft magnetic alloy includes a micro-structure, and wherein the micro-structure includes a crystalline phase with a mean crystalline grain size ranging from 15 nm to 50 nm in an amorphous base.