公开(公告)号：US20230420156A1

公开(公告)日：2023-12-28

申请号：US18208068

申请日：2023-06-09

Applicant: TOPPAN INC.

Inventor： Hiroyoshi NISHIYAMA ,  Ryo SHODA

IPC: H01B3/00 ,  H05K9/00

CPC classification number: H01B3/002 ,  H05K9/0081

Abstract: A manufacturing method for manufacturing a dielectric layer included in a reflective electromagnetic wave absorber, the method including the steps of: preparing a resin composition containing at least one dielectric compound and a resin component, and having a relative permittivity higher than 10.0 at a frequency of 3.7 GHz or 90 GHz; and forming a dielectric layer made from this resin composition and having a thickness of 20 to 7000 μm. A resin composition according to the present disclosure is used to form a dielectric layer included in a reflective electromagnetic wave absorber, the resin composition containing at least one dielectric compound and a resin component, and having a relative permittivity higher than 10.0 at a frequency of 3.7 GHz or 90 GHz.

公开(公告)号：US20230202143A1

公开(公告)日：2023-06-29

申请号：US18118369

申请日：2023-03-07

Applicant: TOPPAN INC.

Inventor： Hiroyoshi NISHIYAMA ,  Ryo SHODA

IPC: B32B17/06 ,  B32B27/06 ,  C09D165/00

CPC classification number: B32B17/06 ,  B32B27/06 ,  C09D165/00 ,  B32B2255/26 ,  B32B2255/10 ,  B32B27/36

Abstract: A method for producing an organic conductive film includes a step of preparing a coating liquid containing an acid-based organic conductive polymer, an alkali neutralizing agent, and a liquid medium, and having a pH of 4.0 to 6.5 at 25° C., a step of applying the coating liquid to a base layer, and a step of removing the liquid medium from the applied coating liquid.

公开(公告)号：US20220159885A1

公开(公告)日：2022-05-19

申请号：US17442505

申请日：2020-03-26

Applicant: TOPPAN INC. ,  MAXELL HOLDINGS, LTD.

Inventor： Ryo SHODA ,  Masayuki TOYODA

IPC: H05K9/00 ,  B32B27/36 ,  B32B5/02 ,  B32B7/12 ,  B32B27/12

Abstract: An electromagnetic wave suppression sheet includes an electromagnetic wave transmitting layer having conductivity and transparency; a suppression layer having transparency; a conductive mesh having openings formed by woven lines; and an adhesive layer having transparency in this order from an outer side toward an inner side. The openings of the conductive mesh have a region in which the suppression layer and the adhesive layer are in contact with each other. A method of manufacturing an electromagnetic wave suppression sheet includes steps of preparing a laminate including the suppression layer, and the conductive mesh disposed to be in contact with the suppression layer; and applying a pressure to the conductive mesh in a direction of the suppression layer.