Stock material or miscellaneous articles – Circular sheet or circular blank
Reexamination Certificate
2005-05-03
2005-05-03
Mulvaney, Elizabeth (Department: 1774)
Stock material or miscellaneous articles
Circular sheet or circular blank
C428S064400, C428S064500, C430S270120
Reexamination Certificate
active
06887547
ABSTRACT:
An optical information recording medium of the present invention includes: a substrate with at least one selected from the group consisting of a groove and a pit formed on one surface thereof; at least one information layer provided on the surfaces of the substrate, the information layer including at least one selected from the group consisting of a recording film and a reflective film; a resin layer provided on the information layer; and a light transmission layer provided on the resin layer. The resin layer includes a first resin film and a second resin film disposed in this order from the side of the light transmission layer, and when a water absorption rate of the first resin film is represented by A1and a water absorption rate of the second resin film is represented by A2, A1and A2satisfy: A1>A2. The first resin film and the second resin film may have a different flexural modulus of elasticity.
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Nishikiori Keiji
Ohno Eiji
Matsushita Electrical Industrial Co. Ltd.
Mulvaney Elizabeth
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