Appeal No. 96-1078
Application No. 07/960,887
and saturation magnetic flux density) over CoCr perpendicular
materials in perpendicular recording media. The same CoPt and
CoPtB(O) alloys are disclosed in the Hayashi Materials
Research publication for use as perpendicular recording media.
For the advantage of the superior properties noted in the
Abstract of the Hayashi Journal of Applied Physics
publication, it would have been obvious to one of ordinary
skill in the art to use CoPt or CoPtB(O) in place of the CoCr
used in Kobayashi. The vertical coercive force of these
alloys is described in both publications as being higher than
1500 Oe.
Based upon the foregoing, appellants’ argument
(Supplemental Reply Brief, page 2) concerning hindsight is
without merit. The obviousness rejection of claim 1 based
upon Kobayashi and the Hayashi publications is sustained. The
obviousness rejection of claims 2, 3 and 10 is likewise
sustained because appellants have chosen to let these claims
stand or fall with claim 1 (Reply Brief, page 3).
The opening sentence in the Introduction section of the
Hayashi Journal of Applied Physics publication states that it
is directed to high density magnetic recording. In light of
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