Appeal No. 1998-3348 Page 9
Application No. 08/541,948
mechanical resonance frequency of the disks loaded has been
transformed so that the mechanical resonance frequency
determined by coupling the pitching mode mechanical resonance
frequency of the disk loading spindle motor with the primary
mechanical resonance frequency of disks to be loaded is the
same for one disk loaded and for plural disks loaded.”
Further similarly, claim 8 specifies in pertinent part the
following limitations: “means for adjusting at least one of
the diameter of the shaft of a spindle motor, the material of
said shaft, the size of a bearing for holding said shaft by
clamping, the pressure applied to said bearing, the span over
the bearing, the thickness of the disks, the material of the
disks, disk clamping position, and the disk clamping force
based on ... the pitching mode mechanical resonance frequency
of a no-load spindle motor and the primary mechanical
resonance frequency of the disks loaded has been transformed
so that the mechanical resonance frequency determined by
coupling the pitching mode mechanical resonance frequency of
the disk loading spindle motor with the primary mechanical
resonance frequency of disks to be loaded is the same for one
disk loaded and for plural disks loaded.” Similarly, claims 9
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