Spindle motor
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United States of America Patent
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-
Jun 4, 2013
Grant Date -
Nov 17, 2011
app pub date -
Sep 1, 2010
filing date -
May 17, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The spindle motor includes a rotating shaft and a sleeve. The rotating shaft has a stepped portion in a fluid dynamic pressure shafting system. The sleeve is fitted over the circumferential outer surface of the rotating shaft. A sleeve recess is formed in the inner surface of the sleeve so that the edges of the stepped portion are spaced apart from the sleeve.
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Cited Art Landscape
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