Appeal No. 1998-0139
Application No. 08/503,320
BACKGROUND
The invention is directed to a magneto-optical recording medium comprising a
bilayer structure composed of a reproducing layer and a recording layer. Claims 1, 7
and 11 are representative of the invention are reproduced below:
1. A magneto-optical recording medium comprising a substrate and a
bilayer structure, said bilayer structure comprising a reproducing
layer comprising Nd (TbFeCoCr) wherein x is an atomic
x 100-x
percentage greater than 0 and a recording layer comprising
TbFeCoCr.
7. A magneto-optical recording medium for use in a recording
medium including a dielectric layer, a protective layer and a
reflective layer formed in sequence on a substrate, said
magneto-optical recording medium comprising a bilayer
structure located between said dielectric layer and said
protective layer, said bilayer structure comprising a
reproducing layer comprising Nd Gd (TbFeCoCr)
a b 100-(a+b)
wherein a and b are atomic percentages and a recording
layer comprising TbFeCoCr.
11. A recording medium comprising:
a substrate;
a dielectric layer;
a magneto-optical recording medium comprising a bilayer
structure, said bilayer structure comprising a reproducing layer and
a recording layer, said reproducing layer comprising
Nd (TbFeCoCr) wherein x is an atomic percentage with a value
x 100-x
greater than 0 and said recording layer comprising TbFeCoCr;
a protective layer; and
a reflective layer.
As evidence of obviousness, the Examiner relies on the following reference:
-2-
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