Asymmetrical storage disk for a disk drive

Details Asymmetrical storage disk for a disk drive Asymmetrical storage disk for a disk drive

2007-05-02

2008-10-28

Klimowicz, William J (Department: 2627)

Dynamic magnetic information storage or retrieval

Record medium

Disk

C360S097010

Reexamination Certificate

active

07443634

ABSTRACT:
A storage disk for a hard disk drive includes a homogeneously-formed body region, a first side region and a second side region. The body region includes a first body side and a second body side opposite the first body side. The first side region is secured to the first body side and the second side region is secured to the second body side. In one embodiment, the first side region is adapted to store data and the second side region is not adapted to store data. The first side region includes a plurality of layers formed from different materials relative to one another. The first side region has a first density that is different than a second density of the second side region. In one embodiment, the first side region has a mass that is different than a mass of the second side region. In an alternative embodiment, the first side region has a thickness that is different than a thickness of the second side region.

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