Title:
BUILT-IN-COIL COMPONENT
Document Type and Number:
WIPO Patent Application WO/2017/038505
Kind Code:
A1
Abstract:
A built-in-coil component (1) has a first coil element (10) and a second coil element (20) inside a multilayer element body (5). The first coil element (10) is constituted by a first coil part (11) which includes coil patterns (p4, p5), and a second coil part (12) which includes a coil pattern (p1). The second coil element (20) is constituted by a third coil part (23) which includes coil patterns (p2, p3). The third coil part (23) is provided between the first coil part (11) and the second coil part (12). A magnetic layer (30) is provided between the coil patterns (p4, p5) of the first coil part (11) and between the coil patterns (p2, p3) of the third coil part (23). A middle layer (40) which has a magnetic permeability lower than that of the magnetic layer (30) is provided between the first coil part (11) and the third coil part (23) and between the second coil part (12) and the third coil part (23).
Inventors:
YAZAKI HIROKAZU (JP)
Application Number:
PCT/JP2016/074233
Publication Date:
March 09, 2017
Filing Date:
August 19, 2016
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01F17/04; H01F17/00; H01F27/00; H01F27/28
Domestic Patent References:
| WO2007148455A1 | 2007-12-27 | |||
| WO2010084677A1 | 2010-07-29 |
Foreign References:
| JPH05258958A | 1993-10-08 | |||
| JP2013168466A | 2013-08-29 | |||
| JP2007324555A | 2007-12-13 | |||
| JP2015073052A | 2015-04-16 | |||
| JPH0888126A | 1996-04-02 | |||
| JP2009081189A | 2009-04-16 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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