STAMPER, METHOD OF MANUFACTURING THE SAME, AND METHOD OF MANUFACTURING MOLDED BODY
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United States of America Patent
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Issued Date -
Mar 5, 2015
app pub date -
Dec 26, 2012
filing date -
Dec 27, 2011
priority date (Note) -
Abandoned
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Abstract
A method of manufacturing a stamper of the invention includes: performing a blast process on an aluminum base material, and thereafter anodizing a processing surface of the blast-processed aluminum base material so that a structure which includes a rough rugged structure having an specific arithmetic average roughness Ra and a specific period Sm and a fine rugged structure which is formed on the rough rugged structure to have a shorter period than that of the rough rugged structure is formed on a surface of the aluminum base material. In the stamper of the invention, by anodizing the processing surface of the blast-processed aluminum base material, the structure which includes the specific rough rugged structure and the fine rugged structure which is formed on the specific rough rugged structure to have a shorter period than that of the rough rugged structure is formed on the surface of the aluminum base material.
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