Title:
ELECTROMAGNETIC WAVE ABSORBER
Document Type and Number:
WIPO Patent Application WO/2019/188351
Kind Code:
A1
Abstract:
To realize an electromagnetic wave absorber with which it is possible to satisfactorily absorb electromagnetic waves of a high frequency in or above the millimeter-wave band, and satisfactorily follow a relief shape of an affixation surface and prevent the occurrence of problems such as leakage of electromagnetic waves. A permeation-type electromagnetic absorber 10 formed as a laminate structure or two or more layers, including at least an adhesion layer 2 to be affixed to an affixation surface, and an electromagnetic absorption layer 1 for absorbing electromagnetic waves of a high frequency in or above the millimeter-wave band, wherein the indentation depth at a load of 10 mgf according to a nanoindentation method using a Berkovich indenter is 1.1 < A/B < 3, where A (mm) represents the indentation depth of the adhesive layer and B (mm) represents the indentation depth of a second layer laminated on the adhesive layer.
Inventors:
HIROI TOSHIO
FUJITA MASAO
FUJITA MASAO
Application Number:
PCT/JP2019/010581
Publication Date:
October 03, 2019
Filing Date:
March 14, 2019
Export Citation:
Assignee:
MAXELL HOLDINGS LTD (JP)
International Classes:
H05K9/00; B32B7/025; B32B27/00
Domestic Patent References:
| WO2017221992A1 | 2017-12-28 | |||
| WO2018230578A1 | 2018-12-20 |
Foreign References:
| JP2003145681A | 2003-05-20 |
Attorney, Agent or Firm:
IKEUCHI & PARTNERS (JP)
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