Disk drive device with structure that enables thinning and increase of recording capacity
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United States of America Patent
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Jul 14, 2015
Grant Date -
Dec 4, 2014
app pub date -
May 27, 2014
filing date -
May 30, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A disk drive device includes: a chassis; an annular hub on which a recording disk is to be mounted; a fluid dynamic bearing mechanism that supports the hub freely rotatable relative to the chassis; an annular extended portion extending outwardly in a radial direction from the hub; and an annular recess which is provided in the chassis and where the annular extended portion at least partially enters in the radial direction, in which a gap between the annular recess and the annular extended portion includes a portion that forms a flexed labyrinth in a cross-sectional view.
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