Invention Grant
- Patent Title: Laminated sheet
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Application No.: US17777171Application Date: 2020-11-11
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Publication No.: US12185518B2Publication Date: 2024-12-31
- Inventor: Hisato Matsui , Hideaki Toyama , Wataru Gouda
- Applicant: Toray Industries, Inc.
- Applicant Address: JP Tokyo
- Assignee: Toray Industries, Inc.
- Current Assignee: Toray Industries, Inc.
- Current Assignee Address: JP Tokyo
- Agency: BUCHANAN INGERSOLL & ROONEY PC
- Priority: JP2019-207630 20191118
- International Application: PCT/JP2020/042010 WO 20201111
- International Announcement: WO2021/100566 WO 20210527
- Main IPC: H05K9/00
- IPC: H05K9/00 ; B32B7/025 ; B32B7/12 ; B32B25/04 ; B32B25/16 ; B32B27/08 ; B32B27/20 ; B32B27/32 ; B32B27/36

Abstract:
The present invention aims to provide a multi-layer sheet with excellent electromagnetic wave shielding properties. The multi-layer sheet includes an alternating multilayer unit with five or more A layer and B layer alternately laminated, in which the electromagnetic return loss at the peak top in the peak of return loss spectrum with the highest return loss at the peak top is 5 dB or more in a chart of the return loss in the multi-layer sheet.
Public/Granted literature
- US20220408618A1 LAMINATED SHEET Public/Granted day:2022-12-22
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