Title:
COMMON MODE NOISE FILTER
Document Type and Number:
WIPO Patent Application WO/2018/051798
Kind Code:
A1
Abstract:
This common mode noise filter is provided with: a lamination body including first to fourth insulator layers that are laminated; first to fourth coil conductors which are provided on the top surfaces, respectively, of the first to fourth insulator layers and extend in a spiral shape; a first via electrode which connects the first coil conductor and the second coil conductor; a second via electrode which connects the third coil conductor and the fourth coil conductor; a first connecting part which connects an inner end of the first coil conductor to the first via electrode; a second connecting part which connects an inner end of the second coil conductor to the first via electrode; a third connecting part which connects an inner end of the third coil conductor to the second via electrode; and a fourth connecting part which connects an inner end of the fourth coil conductor to the second via electrode. The first connecting part and the second connecting part overlap when viewed from the top, and the third connecting part and the fourth connecting part overlap when viewed from the top. This common mode noise filter can be used in a high frequency band.
Inventors:
OOMORI YOSHIHARU
MATSUSHIMA KENICHI
ICHIHARA TAKESHI
MATSUSHIMA KENICHI
ICHIHARA TAKESHI
Application Number:
PCT/JP2017/031295
Publication Date:
March 22, 2018
Filing Date:
August 31, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01F17/04; H01F17/00
Domestic Patent References:
| WO2016079903A1 | 2016-05-26 | |||
| WO2015005161A1 | 2015-01-15 |
Foreign References:
| JP2013138146A | 2013-07-11 | |||
| JP2009212255A | 2009-09-17 | |||
| JP2013122940A | 2013-06-20 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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