Title:
MAGNETIC SHIELD MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/105543
Kind Code:
A1
Abstract:
A magnetic shield material comprising a magnetic layer including a magnetic material, and an electroconductive layer including an electroconductive material, wherein the thickness of the electroconductive layer is configured to have a thickness corresponding to the frequency band of the electromagnetic waves to be shielded. Specifically, the thickness of the electroconductive layer (thickness of the aluminum foil in figure) is set to a thickness (thickness of the aluminum foil corresponding to the peak value frequency in the graph E in figure) at which the magnetic field shielding effect due to the magnetic shield material is at a maximum in the frequency band of the electromagnetic waves to be shielded. It is thereby possible to obtain a good magnetic field shielding effect using the magnetic shield material in the frequency band of the electromagnetic waves to be shielded.
Inventors:
ISHIHARA TAICHI (JP)
Application Number:
PCT/JP2019/044731
Publication Date:
May 28, 2020
Filing Date:
November 14, 2019
Export Citation:
Assignee:
KITAGAWA IND CO LTD (JP)
International Classes:
H05K9/00; B32B7/025
Foreign References:
| JP2005514797A | 2005-05-19 | |||
| JP2018067629A | 2018-04-26 |
Other References:
See also references of EP 3886550A4
Attorney, Agent or Firm:
ITAYA, Yasuo et al. (JP)
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