Magnetic disk apparatus
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United States of America Patent
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Mar 31, 2009
Grant Date -
Aug 18, 2005
app pub date -
Jan 28, 2005
filing date -
Feb 16, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A magnetic disk apparatus capable of reducing deformation of a magnetic disk is disclosed. The magnetic disk apparatus comprises a magnetic disk on which data is recorded while the disk is driven, a hub around which the magnetic disk is supported from an under side of the magnetic disk, and a clamp in contact with the other side of the magnetic disk and fixing the magnetic disk. An O-ring is interposed between a flange formed at an outer circumference of the hub and the magnetic disk, and a spacer is interposed between the magnetic disk and the O-ring. Thus an upper surface of the hub is in contact with an under surface of the clamp and defines a vertical position of the magnetic disk.
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