Appeal No. 1998-0146
Application 08/407,058
been motivated to combine the individual teachings of
Yamamoto and Sugano to produce a device which achieves the
benefits of each type of cleaning operation.
For the reasons stated above, we conclude that the
combination of Yamamoto and Sugano is sufficient to
establish a prima facie case of obviousness. The rejection
of claims 1, 4-8, and 10 is sustained.
Yamamoto, Sugano, and Nonaka
Nonaka discloses cleaning the dust particles from the
sliders 2 of a hard disk drive by rotating the disks 1 at a
low rotational speed in the opposite direction to the
ordinary read/write direction (col. 3, lines 46-53) to allow
dust to adhere to the rear of the slider (figure 2), and
then moving the sliders to the non-recording region and
repeatedly starting and stopping the disk rotation in the
ordinary direction of rotation to force dust on the trailing
edge of the slider to fall onto the disk surface (col. 4,
lines 17-27).
The Examiner concludes that it would have been obvious
to provide Yamamoto with a control command to rotate the
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