Title:
NOISE FILTER AND ELECTRONIC DEVICE USING NOISE FILTER
Document Type and Number:
WIPO Patent Application WO/2001/067470
Kind Code:
A1
Abstract:
A noise filter comprises a magnetic member (32) formed of a laminated magnetic sheets (24, 28, 30, 31), a first impedance element (21) formed in the magnetic body (32), and a second impedance element (25) formed above the first impedance element (21). The first impedance element (21) includes a first normal impedance element part (22) and a first common impedance element part (23). The second impedance element (25) includes a second common impedance element part (26) and a second normal impedance element part (27).
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Inventors:
NAKAYAMA SHOGO (JP)
ORITA TAKESHI (JP)
URIU EIICHI (JP)
OISHI KAZUO (JP)
WASHIZAKI TOMOYUKI (JP)
NISHIMURA KOJI (JP)
MATSUMURA KAZUTOSHI (JP)
ORITA TAKESHI (JP)
URIU EIICHI (JP)
OISHI KAZUO (JP)
WASHIZAKI TOMOYUKI (JP)
NISHIMURA KOJI (JP)
MATSUMURA KAZUTOSHI (JP)
Application Number:
PCT/JP2001/001764
Publication Date:
September 13, 2001
Filing Date:
March 07, 2001
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
NAKAYAMA SHOGO (JP)
ORITA TAKESHI (JP)
URIU EIICHI (JP)
OISHI KAZUO (JP)
WASHIZAKI TOMOYUKI (JP)
NISHIMURA KOJI (JP)
MATSUMURA KAZUTOSHI (JP)
NAKAYAMA SHOGO (JP)
ORITA TAKESHI (JP)
URIU EIICHI (JP)
OISHI KAZUO (JP)
WASHIZAKI TOMOYUKI (JP)
NISHIMURA KOJI (JP)
MATSUMURA KAZUTOSHI (JP)
International Classes:
H01F17/00; H03H1/00; H03H7/09; (IPC1-7): H01F17/00; H03H7/09
Foreign References:
JPH0799123A | 1995-04-11 | |||
JPH05101950A | 1993-04-23 | |||
JPH11214229A | 1999-08-06 | |||
JPH08148354A | 1996-06-07 |
Other References:
See also references of EP 1271572A4
Attorney, Agent or Firm:
Iwahashi, Fumio c/o Matsushita Electric Industrial Co. (Ltd. 1006 Oaza Kadoma Kadoma-shi, Osaka, JP)
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