Appeal No. 96-3604 Page 6
Application No. 08/383,658
Applicant’s Prior Art teaches sliders (1), a head
core (2) integrally formed with the slider, and a
groove (3) which is approximately 0.7 mm formed on a
sliding surface of the slider. One slider is
mounted on a head arm and the other on a head
carriage. The groove extends in a tangential
direction to the rotation of the magnetic disk. The
groove is positioned along the center of the sliding
surface of the magnetic head. The slider portion of
the heads (5) slides on the disk. The sliders have
a planar sliding surface. A magnetic head speed
relative to the disk of less than 148.9 cm/sec is
provided. (Examiner’s Answer at 4.)
He admits that Admission omits “a groove having a width of 0.2
to 0.4 mm, “ (id.), formed on the sliding surface of the first
slider. The examiner further admits the lack of a groove
formed on the sliding surface of the second slider. (Id.) He
notes that Gomi teaches “a disk drive system with two head
sliders which can have a groove on each slider or a groove on
one (above and below the disc) or a groove on neither slider
....” (Id.)
The examiner ends his rejection by concluding that it
would have been “a matter of routine engineering skill,”
(Examiner’s Answer at 5), to change the width of the groove in
Admission’s upper magnetic head from a range of 0.7 mm - 1.2
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