Invention Grant
- Patent Title: Magnetic material and coil component using same
- Patent Title (中): 磁性材料和线圈组件使用相同
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Application No.: US14113801Application Date: 2011-10-13
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Publication No.: US09030285B2Publication Date: 2015-05-12
- Inventor: Hitoshi Matsuura , Kenji Otake
- Applicant: Hitoshi Matsuura , Kenji Otake
- Applicant Address: JP Tokyo
- Assignee: Taiyo Yuden Co., Ltd.
- Current Assignee: Taiyo Yuden Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Law Office of Katsuhiro Arai
- Priority: JP2011-100095 20110427
- International Application: PCT/JP2011/073559 WO 20111013
- International Announcement: WO2012/147224 WO 20121101
- Main IPC: H01F5/00
- IPC: H01F5/00 ; H01F27/255 ; H01F1/24 ; H01F1/33 ; H01F41/02 ; C22C38/34 ; H01F1/147

Abstract:
A magnetic material suitable for a coil component has multiple metal grains constituted by Fe—Si-M soft magnetic alloy (where M is a metal element that oxidizes more easily than Fe) and oxide film formed on the surface of the metal grains, wherein such magnetic material includes a grain compact having bonding parts where adjacent metal grains are bonded together via the oxide film formed on their surface, and bonding parts where metal grains are directly bonded together in areas where oxide film does not exist. The magnetic material is capable of improving both insulation resistance and magnetic permeability.
Public/Granted literature
- US20140049348A1 MAGNETIC MATERIAL AND COIL COMPONENT USING SAME Public/Granted day:2014-02-20
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