Invention Grant
- Patent Title: Chip inductor and manufacturing method thereof
- Patent Title (中): 片式电感及其制造方法
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Application No.: US12995845Application Date: 2009-06-03
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Publication No.: US08305181B2Publication Date: 2012-11-06
- Inventor: Masaki Kitagawa , Yukiko Ohta , Miho Kawasaki
- Applicant: Masaki Kitagawa , Yukiko Ohta , Miho Kawasaki
- Applicant Address: JP Ina-shi
- Assignee: KOA Corporation
- Current Assignee: KOA Corporation
- Current Assignee Address: JP Ina-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2008-147725 20080605; JP2008-244422 20080924; JP2008-244423 20080924
- International Application: PCT/JP2009/060126 WO 20090603
- International Announcement: WO2009/148072 WO 20091210
- Main IPC: H01F27/29
- IPC: H01F27/29 ; H01F27/30

Abstract:
To provide a chip inductor, which can make magnetic loss of the inductor element reduced, excellent in electrical property such as high Q etc., and high reliability, which is demanded for use in vehicles. The chip inductor comprises a ferrite core (11) comprising an axial section (11a), flange portions (11b) disposed at both ends of the axial section, and concavities (11c) opened for direction of the axial section on at least one face of the flange section; an internal electrode (13) consisting of metallic plate having a notch portion at axial section side, the internal electrode fixed on the upper face of the flange section having the concavity; and a winding (12) wound around the axial section of the ferrite core; wherein an end portion of the winding (12a) comes in contact to a side of the concavity, which faces to the axial section, comes in contact to the notch portion of the internal electrode, and is fixed on upper face of the internal electrode.
Public/Granted literature
- US20110128107A1 CHIP INDUCTOR AND MANUFACTURING METHOD THEREOF Public/Granted day:2011-06-02
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