Appeal 2007-2256
Application 10/903,064
We determine that the Examiner has established a prima facie case of
obviousness in view of the reference evidence, which prima facie case has
not been adequately rebutted by Appellants’ arguments. Therefore, we
AFFIRM the sole ground of rejection presented in this appeal essentially for
the reasons stated in the Answer, as well as those reasons set forth below.
OPINION
We determine the following factual findings from the record in this
appeal:
(1) Lee discloses a longitudinal magnetic recording medium having a
circumferentially textured glass substrate, a CrTi layer, a CoTi
seed layer, a Cr alloy underlayer, and a magnetic layer having an
orientation ratio greater than 1 (Answer 3; see Lee, Abstract; Fig.
2; and ¶¶ [0013] through [0016]);
(2) Lee teaches that the CrTi layer is a seed layer that is used to isolate
the later deposited films from the substrate, thus allowing the
following CoTi layer to be deposited onto the CrTi layer without
being adversely impacted by the substrate; and the CoTi layer is
an underlayer having a B2 crystal structure used to enhance the
coercivity and Mrt value of the later deposited magnetic films by
orienting the crystal growth (¶¶ [0025] and [0027]);
(3) Shimizu discloses a magnetic recording medium including a non-
magnetic substrate, a soft magnetic undercoat film, an orientation-
regulating undercoat film, an orientation-regulating film, a
perpendicular magnetic film where the easy-magnetization axes
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