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Patent Searching and Data


Title:
ELECTROMAGNETIC WAVE ABSORPTION SHEET
Document Type and Number:
WIPO Patent Application WO/2019/235536
Kind Code:
A1
Abstract:
The present invention enables the achievement of an electromagnetic interference type electromagnetic wave absorption sheet which is capable of satisfactorily absorbing electromagnetic waves having frequencies in and above the millimeter wave band, and which is able to be produced at low cost. An electromagnetic interference type electromagnetic wave absorption sheet which is obtained by sequentially stacking a resistive film 1 that is formed from a conductive organic polymer, a dielectric layer 2 that has adhesive properties, and an electromagnetic shielding layer 3. The sheet as a whole is flexible; and the dielectric layer is configured to have such a layer thickness that enables absorption of electromagnetic waves that have frequencies in and above the millimeter wave band.

Inventors:
TOYODA MASAYUKI
Application Number:
PCT/JP2019/022373
Publication Date:
December 12, 2019
Filing Date:
June 05, 2019
Export Citation:
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Assignee:
MAXELL HOLDINGS LTD (JP)
International Classes:
H05K9/00; B32B7/025; H01Q17/00
Domestic Patent References:
WO2018088492A12018-05-17
Foreign References:
JP2008135485A2008-06-12
JP2008124154A2008-05-29
JP2011066094A2011-03-31
JP2009084400A2009-04-23
JP2018117073A2018-07-26
US20100097048A12010-04-22
JPH06120689A1994-04-28
JPH09232787A1997-09-05
JP2006086446A2006-03-30
Other References:
See also references of EP 3749077A4
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (JP)
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