Method for patterning surface of metal object and the metal object
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United States of America Patent
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Oct 7, 2014
Grant Date -
Jan 3, 2013
app pub date -
Jun 29, 2012
filing date -
Jun 30, 2011
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Abstract
On the surface of the spread multi-layered metal object, as reaches from outside to inside of step-wise, the pattern shaped concave is formed by reaching the lower layer of metal layer of the metal layer. The concave is formed as step-wise, the innermost reaches inside of the metal layer from the surface, the outer reaches the top of the metal layer from the surface, and the outermost reaches the top of the metal layer. The metals removed to form the concave remains inside and effectively control on the pattern part obtained at the end. As a result, able to form desired pattern stably.
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