Appeal No. 2001-1268
Application No. 09/100,698
attached to the surfaces depicted, with two near the leading edge
of the head/slider and two near the trailing edge of the
head/slider, and the recesses 72 and 74, allowing for the first
and second heights described by appellants, wherein the ratio of
the difference between the first and second heights to the first
height is approximately 1:10.
While both Best and Okada disclose “stiction reduction means
for reducing stiction between the slider and the rotatable disc,”
with both references even showing four landing pads and
recesses2, neither of these references discloses the exact
structure of instant Figures 4-3, 5-1 and 5-2, having the landing
pads positioned exactly as shown, two at the leading edge and two
at the trailing edge of the head/slider, and having recesses, as
shown in the instant figures, such that the landing pads have
contact surfaces which extend to a first height below the air
bearing surface toward the disc surface, the landing pads extend
to a second height greater than the first height from the
recessed surface farther from the disc surface than the air
bearing surface and the ratio of the difference between the first
2The examiner indicates (Answer-page 7) that these recesses
are taught by Best in Figures 8A-9F and, by Okada, in Figures 1
and 4. Appellants do not dispute this teaching of “recesses” by
the applied references.
-8–
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