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Patent Searching and Data


Title:
COIL COMPONENT AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2012/053439
Kind Code:
A1
Abstract:
Provided is a small-sized and thin coil component, wherein second and third planar spiral conductors facing each other are prevented from coming into contact with each other, and which has good direct current superposition characteristics and high dimensional accuracy, while being not required to form a magnetic gap. A coil component (60) comprises: an insulating resin layer that is provided between a planar spiral conductor (13) that is formed on a back surface of a substrate (11A) and a planer spiral conductor (12) that is formed on a back surface of a substrate (11B); an upper core that covers, from above an insulating resin layer, a planer spiral conductor (12) that is formed on a front surface of the substrate (11A); and a lower core that covers, from above an insulating resin layer, a planer spiral conductor (13) that is formed on the back surface of the substrate (11B). The upper core and/or the lower core is formed of a metal magnetic powder-containing resin, and the coil component comprises connection parts that are respectively arranged in the central portion or outer side of the substrates (11A, 11B) and physically connect the upper core and lower core with each other.

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Inventors:
ITO TOMOKAZU (JP)
OHKUBO HITOSHI (JP)
MAEDA YOSHIHIRO (JP)
MORITA MAKOTO (JP)
ANBO TOSHIYUKI (JP)
TONOYAMA KYOHEI (JP)
OHTA MANABU (JP)
Application Number:
JP2011/073645
Publication Date:
April 26, 2012
Filing Date:
October 14, 2011
Export Citation:
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Assignee:
TDK CORP (?1038272, JP)
ITO TOMOKAZU (JP)
OHKUBO HITOSHI (JP)
MAEDA YOSHIHIRO (JP)
MORITA MAKOTO (JP)
ANBO TOSHIYUKI (JP)
TONOYAMA KYOHEI (JP)
OHTA MANABU (JP)
International Classes:
H01F17/00; H01F17/04; H01F27/255; H01F27/32
Foreign References:
JP2000277343A2000-10-06
JPH0214174Y21990-04-18
JPH0222966Y21990-06-21
JP2006278909A2006-10-12
Attorney, Agent or Firm:
WASHIZU Mitsuhiro et al. (?1040061, JP)
Mitsuhiro Washizu (?1040061, JP)
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Claims: