Method for forming on a nonconductor a shielding layer against electromagnetic radiation

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United States of America Patent

PATENT NO 4770751
SERIAL NO

06947720

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Abstract

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This invention provides a method for forming metallic deposits on a nonconductor to provide a shield against electromagnetic radiation, the method comprising the steps of: (i) subjecting the surface of a nonconductor to pretreatment prior to electroless copper plating, (ii) electrolessly plating the pretreated surface of nonconductor with copper to form a copper layer about 0.5 to about 20 .mu.m in thickness on the surface, and (iii) immersing the copper-coated nonconductor in an electroless Ni plating solution and passing an electric current through the solution with the copper layer serving as the cathode, followed by cutting of current, to deposit as Ni layer 1.0 to about 20 .mu.m on the copper layer.

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Patent Owner(s)

Patent OwnerAddress
OKUNO CHEMICAL INDUSTRY CO LTDHIGASHI-KU OSAKA-SHI OSAKA-FU

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kawagishi, Shigemitsu Suita, JP 4 42
Kita, Toshiyuki Nara, JP 121 4831

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