The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 2009
Filed:
Jan. 20, 2005
Nobuo Naito, Tokyo-To, JP;
Fumihiro Arakawa, Tokyo-To, JP;
Tadahiro Masaki, Tokyo-To, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
An electromagnetic wave shielding sheetcomprises a transparent substrateand a first anticorrosive layerA, a first blackening layerA, a metal layerand a second anticorrosive layerB that are successively formed on the transparent substratethrough an adhesive layerA second blackening layerB is formed so that it fully covers the side faces of the first anticorrosive layerA, the first blackening layerA, the metal layerand the second anticorrosive layerB, as well as the front face of the second anticorrosive layerB. At least either of the first anticorrosive layerA and the second anticorrosive layerB contains one or more metals selected from nickel, chromium, and silicon, and also zinc and/or tin when it is initially formed, and the zinc and/or tin is removed from the first anticorrosive layerA and/or the second anticorrosive layerB in an intermediate steps.