Appeal No. 1996-3787
Application No. 07/607,870
and a suitable Curie temperature. See column 4, lines 6-12.
Nowhere does it recognize the importance of utilizing, inter
alia, a magnetic recording layer having a thickness of 10-50
nm and a coercive force and Curie temperature higher than a
magnetic supporting layer in a magneto-optical recording
medium.
Moreover, the examiner has not supplied any motivation to
utilize the reflective and phase modulating layer taught in
Osato in the photo-thermo-magnetic recording medium of the
type describe in Katayama. On this record, the examiner has
failed to establish that the reflective and phase modulating
(metallic) layer useful for imparting the so-called
“enhancement of their readout properties, such Kerr rotation
and C/N” to the particular magneto-optical recording medium
taught in Osato is also useful for imparting the same to
Katayama’s photo-thermo-magnetic recording medium having a
materially different multi-layered structure.
Accordingly, we conclude that the examiner has failed to
establish a prima facie case of obviousness within the meaning
of 35 U.S.C. § 103.
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