Appeal No. 2002-1385
Application No. 09/049,861
BACKGROUND
The invention is directed to a magnetic disk storage medium and a disk drive
which reduces friction between the head/slider and the disk. The landing zone for the
head/slider is comprised of an untextured area and a textured area for reducing sticking
of the head/slider to the disk surface when starting or landing the head/slider. Claim 5
is reproduced below.
5. A disk drive comprising:
a head/slider having an air bearing surface for floating a slider over a
rotating disk;
the disk having a disk substrate, a storage medium on at least a portion of
a surface of the disk, the storage medium having a storage area for recording
data, the disk having a circumferential landing zone on an area of the disk other
than said storage area, the circumferential landing zone being partially textured;
the landing zone having a texture free zone which faces a minimum fly
height area of the air bearing surface of the slider when the slider is landing and
also having a circumferential bump zone adjacent to said free zone, the bump
zone being formed with bumps protruding from the surface of said disk, the free
zone having no bumps; and
a landing position control unit for moving the slider so that the minimum fly
height area of said slider is positioned over the free zone of said disk storage
medium when landing said slider.
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