Title:
CARBON FIBER-REINFORCED COMPOSITE MATERIAL, LAMINATED CARBON FIBER COMPOSITE MATERIAL, LAMINATED COMPOSITE MATERIAL, CASE FOR WIRELESS POWER FEEDER, AND CASE FOR WIRELESS POWER RECEIVER
Document Type and Number:
WIPO Patent Application WO/2021/157652
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a carbon fiber-reinforced composite material that, while having an electromagnetic shielding property in a high frequency band, allows electromagnetic waves in a low frequency band to pass therethrough. The present invention is a carbon fiber-reinforced composite material, wherein the ratio SEM300K/SEM1G of the value SEM300K (dB) at 300 kHz to the value SEM1G (dB) at 1 GHz, which are magnetic field shielding effectiveness values measured by the KEC method, is 0.50 or lower.
Inventors:
MURAMATSU HIDETAKA (JP)
KIYAMA KOSHI (JP)
KIYAMA KOSHI (JP)
Application Number:
PCT/JP2021/004087
Publication Date:
August 12, 2021
Filing Date:
February 04, 2021
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
C08J5/04; H05K9/00
Domestic Patent References:
| WO2016002456A1 | 2016-01-07 | |||
| WO2016002457A1 | 2016-01-07 |
Foreign References:
| JP2004140255A | 2004-05-13 | |||
| JP2007110138A | 2007-04-26 | |||
| JP2008034823A | 2008-02-14 | |||
| JP2013075447A | 2013-04-25 | |||
| US20150163967A1 | 2015-06-11 | |||
| JP2016009809A | 2016-01-18 |
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