Invention Grant
- Patent Title: Laminated inductor
- Patent Title (中): 层压电感
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Application No.: US13452635Application Date: 2012-04-20
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Publication No.: US08427265B2Publication Date: 2013-04-23
- Inventor: Masahiro Hachiya , Takuya Ishida , Takayuki Arai , Kenji Otake , Hitoshi Matsuura
- Applicant: Masahiro Hachiya , Takuya Ishida , Takayuki Arai , Kenji Otake , Hitoshi Matsuura
- 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; JP2012-068444 20120323
- Main IPC: H01F27/02
- IPC: H01F27/02

Abstract:
A laminated inductor includes a laminate constituted by multiple magnetic material layers, and coil conductors formed in a spiral pattern in the laminate. The magnetic material layers are layers of a magnetic material having multiple metal grains constituted by a Fe—Si-M soft magnetic alloy and oxide film formed on the surface of the metal grains. The magnetic material has bonding portions where adjacent metal grains are bonded via the oxide film formed on the respective surfaces of the adjacent metal grains as well as bonding portions of metal grains bonding to each other in areas where no oxide film is present, and at least some of the voids generated by agglomeration of the metal grains are filled with a resin material.
Public/Granted literature
- US20120274438A1 LAMINATED INDUCTOR Public/Granted day:2012-11-01
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