Fluid dynamic bearing device and motor equipped with the same
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United States of America Patent
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Jul 7, 2009
Grant Date -
Aug 24, 2006
app pub date -
Feb 6, 2006
filing date -
Feb 17, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A fluid dynamic bearing device is mainly composed of a housing, a bearing sleeve, and a rotary member. The housing is formed by a side portion formed through injection molding of a resin material, and a bottom member fixed to a fixing portion provided in the inner periphery at one axial end of the side portion and adapted to close an opening at one axial end of the side portion. The fixing portion is a molding surface formed through solidification, in conformity with the inner surface of the mold, of the resin injected by the injection molding.
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