Appeal No. 2003-1892
Application No. 09/681,288
a data storage layer disposed between said substrate and said reflective
layer;
an oxygen penetrable UV coating disposed on a side of said substrate
opposite said data storage layer, wherein said UV coating allows a
reflectivity from said optical storage media of about 50% or greater;
and
a reactive layer disposed between said UV coating and said substrate,
wherein said optical storage media has an initial percent reflectivity of
about 50%, said reactive layer comprises
polymethylmethacrylate/leuco methylene blue.
20. A method for limiting access to data disposed on a data storage
media, comprising:
directing a light toward at least a portion of said data storage media,
wherein at least a portion of said light passes through a UV coating, a
reactive layer, a substrate, and a data storage layer;
reflecting at least a portion of said light back through said substrate,
said reactive layer, and said UV coating; and
reducing the percent reflectivity of said data storage media to less than
about 45%.
CITED PRIOR ART
As evidence of unpatentability, the Examiner relies on the following prior
art:
Hu et al. (Hu) 3,768,976 Oct. 30, 1973
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