Electromagnetic absorber

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United States of America Patent

PATENT NO 10716247
APP PUB NO 20190269048A1
SERIAL NO

16319722

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Provided is an electromagnetic-wave absorber that can favorably absorb electromagnetic waves of a plurality of different frequencies in a high frequency band equal to or higher than the millimeter-wave band. The electromagnetic-wave absorber includes an electromagnetic-wave absorbing layer 1 in which a plurality of magnetic layers 1a-1e are stacked, each magnetic layer containing magnetic iron oxide that magnetically resonates at a high frequency in a band equal to or higher than the millimeter-wave band. A value of an anisotropic magnetic field (HA) of the magnetic iron oxide contained in at least one of the magnetic layers is different from that of the magnetic iron oxide contained in another of the magnetic layers.

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Patent Owner(s)

Patent OwnerAddress
MAXELL LTDJAPAN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujita, Masao Kyoto, JP 48 739
Hiroi, Toshio Kyoto, JP 14 271

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