Title:
ELECTROMAGNETIC SHIELDING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/189142
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an electronic equipment casing having electromagnetic shielding properties in a high-frequency band up to the GHz band, as well as having strength and workability even when the thickness is reduced. The present invention provides an electromagnetic shielding material using stainless steel, characterized in that a first region made of stainless steel mainly composed of an austenite phase and a second region made of stainless steel mainly composed of a ferrite phase are laminated in the sheet thickness direction in order to improve the electromagnetic shielding properties.
Inventors:
NISHIMOTO TAKUMI (JP)
OKAMURA KAZUTO (JP)
UNNO HIROTO (JP)
OKAMURA KAZUTO (JP)
UNNO HIROTO (JP)
Application Number:
PCT/JP2023/007591
Publication Date:
October 05, 2023
Filing Date:
March 01, 2023
Export Citation:
Assignee:
NIPPON STEEL CHEMICAL & MAT CO LTD (JP)
International Classes:
C22C38/00; C21D9/46; C22C38/44; H05K9/00
Domestic Patent References:
| WO2004015160A1 | 2004-02-19 |
Foreign References:
| JP2009069049A | 2009-04-02 | |||
| JP2021123747A | 2021-08-30 | |||
| JP2006316338A | 2006-11-24 | |||
| JPH0758479A | 1995-03-03 |
Attorney, Agent or Firm:
AOKI, Atsushi et al. (JP)
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