Invention Grant
- Patent Title: Electromagnetic wave shielding material and process for producing the same
- Patent Title (中): 电磁波屏蔽材料及其制造方法
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Application No.: US11569544Application Date: 2005-05-19
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Publication No.: US08168252B2Publication Date: 2012-05-01
- Inventor: Atsushi Okada , Akio Kiyohara , Hideki Tanaka , Toshiyuki Honda , Masafumi Ito , Junichi Kato , Noboru Toshima , Yasuhisa Nakao
- Applicant: Atsushi Okada , Akio Kiyohara , Hideki Tanaka , Toshiyuki Honda , Masafumi Ito , Junichi Kato , Noboru Toshima , Yasuhisa Nakao
- Applicant Address: JP Ayabe-Shi, Kyoto JP Tokyo
- Assignee: Gunze Limited,Fujikura Kasei Co., Ltd.
- Current Assignee: Gunze Limited,Fujikura Kasei Co., Ltd.
- Current Assignee Address: JP Ayabe-Shi, Kyoto JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2004-153343 20040524
- International Application: PCT/JP2005/009173 WO 20050519
- International Announcement: WO2005/115070 WO 20051201
- Main IPC: H01J11/02
- IPC: H01J11/02

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.
Public/Granted literature
- US20070212536A1 ELECTROMAGNETIC WAVE SHIELDING MATERIAL AND PROCESS FOR PRODUCING THE SAME Public/Granted day:2007-09-13
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