NOISE FILTER AND ELECTRONIC DEVICE USING NOISE FILTER

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)

Application Number:

PCT/JP2001/001764

Publication Date:

September 13, 2001

Filing Date:

March 07, 2001

Export Citation:

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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)

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: