Invention Grant
- Patent Title: Soft magnetic metal powder and soft magnetic metal powder core using the same
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Application No.: US14712313Application Date: 2015-05-14
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Publication No.: US09779861B2Publication Date: 2017-10-03
- Inventor: Yu Sakurai , Tomofumi Kuroda , Hideyuki Itoh
- Applicant: TDK CORPORATION
- Applicant Address: JP Tokyo
- Assignee: TDK CORPORATION
- Current Assignee: TDK CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2014-100331 20140514; JP2015-015581 20150129
- Main IPC: H01F1/147
- IPC: H01F1/147 ; C22C38/08 ; C22C38/00 ; C22C19/03 ; B22F1/00 ; B22F1/02 ; H01F1/20 ; H01F1/24 ; H01F3/08 ; C22C30/00 ; H01F41/02
Abstract:
The present invention relates to a soft magnetic metal powder which contains B and has Fe and Ni as the main components, wherein the content of Ni in the soft magnetic metal powder is 30 to 80 mass %, the total content of Fe and Ni in the soft magnetic metal powder is 90 mass % or more, the content of B inside the metal particle of the soft magnetic metal powder is 10 to 150 ppm, and the particle has a film of boron nitride on the surface. The present invention also relates to a soft magnetic metal powder core prepared by using the soft magnetic metal powder.
Public/Granted literature
- US20150332821A1 SOFT MAGNETIC METAL POWDER AND SOFT MAGNETIC METAL POWDER CORE USING THE SAME Public/Granted day:2015-11-19
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