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:
May. 01, 2012
Filed:
May. 19, 2005
Atsushi Okada, Moriyama, JP;
Akio Kiyohara, Moriyama, JP;
Hideki Tanaka, Moriyama, JP;
Toshiyuki Honda, Saitama, JP;
Masafumi Ito, Saitama, JP;
Junichi Kato, Uji, JP;
Noboru Toshima, Kyoto, JP;
Yasuhisa Nakao, Kyoto, JP;
Atsushi Okada, Moriyama, JP;
Akio Kiyohara, Moriyama, JP;
Hideki Tanaka, Moriyama, JP;
Toshiyuki Honda, Saitama, JP;
Masafumi Ito, Saitama, JP;
Junichi Kato, Uji, JP;
Noboru Toshima, Kyoto, JP;
Yasuhisa Nakao, Kyoto, JP;
Gunze Limited, Ayabe-Shi, Kyoto, JP;
Fujikura Kasei Co., Ltd., Tokyo, JP;
Abstract
The present invention provides an electromagnetic wave shielding material that has high electromagnetic wave shielding effects, excellent transparency, and excellent see-through property, and a simple and inexpensive production process for the electromagnetic wave shielding material. Specifically, the present invention provides a process for producing an electromagnetic wave shielding material, the process comprising screen-printing in a geometric pattern a conductive paste containing a particulate silver oxide, a tertiary fatty acid silver salt, and a solvent, onto a transparent porous layer surface of a transparent resin substrate having a transparent porous layer containing as a main component at least one member selected from the group consisting of oxide ceramics, non-oxide ceramics, and metals; and performing heat treatment to form a conductive region with a geometric pattern on the transparent porous layer surface; and an electromagnetic wave shielding material produced by the production process.