Appeal 2007-3146
Application 10/002,952
wherein the thin film layer is a single layered or multilayered film
including at least any one of a dielectric film, a recording film and a
reflective film and
wherein an expansion coefficient under humidity, Young's modulus
and thickness of the protective film are suitably adjusted so that the bending
moments of the transparent substrate and the protective film generated by
change in humidity are balanced with a neutral plane being a plane
perpendicular to the film thickness direction and the position of the neutral
plane is arranged within the thin film layer.
13. An optical data recording medium according to claim 1, wherein
the expansion coefficient under humidity of the protective film is greater
than that of the transparent substrate and smaller than 1.6 x 10-5 (1/%).
14. An optical data recording medium consisting essentially of a
transparent substrate, a thin film layer formed on the transparent substrate
and a protective film which is mainly comprised of a resin and formed on
the thin film layer for protecting the thin film layer, wherein the thin film
layer is a single layered or multilayered film including at least any one of a
dielectric film, a recording film and a reflective film, and an expansion
coefficient under humidity [ratio of expansion (1/%) where a difference of
relative humidity (vapor content/saturated vapor amount at 25ºC) is
increased by 1%] of the protective film is greater than that of the transparent
substrate and smaller than 5.5 x 10-5 (1/%) and the thickness of the
protective film is 5 µm to 20 µm.
The Examiner relies on the following prior art reference as evidence
of unpatentability:
Tajima (as translated) JP 2000-311381 Nov. 7, 2000
The rejection as presented by the Examiner is as follows:
1. Claims 1, 5, 6, and 10-14 are rejected under 35 U.S.C. § 102(b) as
being unpatentable over Tajima.
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