Appeal No. 1997-0678
Application 08/406,768
the disk and the head" (specification, page 2, lines 26-32).
The specification further discloses that the virtual crown
caused by a downslope from an inner to an outer radius of the
disk makes the flying height for the head approximately
constant regardless of any position in the radial direction of
the disk because the virtual crown becomes smaller at greater
radii which compensates for the greater speed at the outer
radii; however, this function is not claimed.
Claim 11 is reproduced below.
11. A magnetic disk for use within a rotating magnetic
disk drive device, said magnetic disk having a surface
for recording data, wherein:
a first annular portion of said disk surface is a
start-stop area for resting a transducer head when said
magnetic disk drive is not in use;
a second annular portion of said disk surface is a
data storage area for recording data;
said annular start-stop area has a radial downslope
from an inner part of said annular start-stop area to an
outer part of said start-stop area such that the
thickness of said magnetic disk decreases from said inner
part of said annular start-stop area to said outer part
of said annular start-stop area, and wherein said inner
part of said annular start-stop area corresponds to an
inner area of said disk; and
said second annular portion has no radial downslope.
The Examiner relies on the following prior art:
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