Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Composite or multiple layer
Reexamination Certificate
2007-05-08
2010-06-15
Amari, Alessandro (Department: 2872)
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Composite or multiple layer
C264S286000, C359S900000
Reexamination Certificate
active
07736551
ABSTRACT:
A corrugated pattern forming sheet exhibiting excellent performance when being used as optical elements, such as an antireflector and a retardation plate is provided. A corrugated pattern forming sheet of the invention includes a resin layer, and a hard layer provided at least in a portion of an outer surface of the resin layer. The hard layer is made of a metal or a metallic compound. The hard layer has a wavelike corrugated pattern. The average pitch of the corrugated pattern is 1 μm or less, and the average depth of the bottom of the corrugated pattern is 10% or more given an average pitch of 100%.
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Office Action issued in counterpart Chinese Patent Application No. 200710101761.6, dated Nov. 20, 2009.
Amari Alessandro
Knobbe Martens Olson & Bear LLP
Oji Paper Co. Ltd.
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