Invention Grant
- Patent Title: Magnetic powder, and manufacturing method thereof
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Application No.: US16139696Application Date: 2018-09-24
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Publication No.: US11225720B2Publication Date: 2022-01-18
- Inventor: Sung Jae Lee , Jung Wook Seo , Hiroyuki Matsumoto , Chul Min Sim , Jong Sik Yoon , Jong Suk Jung
- Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
- Current Assignee Address: KR Suwon-si
- Agency: Morgan, Lewis & Bockius LLP
- Priority: KR10-2015-0038273 20150319
- Main IPC: H01F1/24
- IPC: H01F1/24 ; H01F1/33 ; B22F1/02 ; C23D5/04 ; C22C33/02

Abstract:
A magnetic powder contains magnetic particles, a first coating layer disposed on surfaces of the magnetic particles and containing a first glass, and a second coating layer disposed on the first coating layer and containing a second glass different from the first glass. A method of manufacturing magnetic powder includes preparing magnetic particles, forming a first coating layer containing a first glass on surfaces of the magnetic particles, and forming a second coating layer containing a second glass different from the first glass on the first coating layer.
Public/Granted literature
- US20190024245A1 MAGNETIC POWDER, AND MANUFACTURING METHOD THEREOF Public/Granted day:2019-01-24
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