Hydrodynamic bearing device, and spindle motor and...

Details Hydrodynamic bearing device, and spindle motor and... Hydrodynamic bearing device, and spindle motor and...

2007-06-05

2010-12-07

McAvoy, Ellen M (Department: 1797)

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Organic -co- compound

C384S013000, C384S100000, C310S090000

Reexamination Certificate

active

07846883

ABSTRACT:
A hydrodynamic bearing device, comprising a shaft structure, a sleeve, a dynamic pressure-generating groove which is formed on surface of at least one of a shaft structure and a sleeve, and a lubricant present in a gap between the shaft structure and the sleeve; wherein the lubricant contains a diester with a total carbon number of 20 to 28 obtainable by a divalent alcohol that has three ether bond, and one or more types of a saturated monovalent fatty acid with carbon number of 6 to 10.

REFERENCES:
patent: 4891161 (1990-01-01), Tanikawa et al.
patent: 5629274 (1997-05-01), Hayakawa et al.
patent: 6023114 (2000-02-01), Mori et al.
patent: 6685356 (2004-02-01), Hirata
patent: 7459416 (2008-12-01), Hirata et al.
patent: 7495863 (2009-02-01), Ohno et al.
patent: 7517838 (2009-04-01), Kawahara et al.
patent: 7776802 (2010-08-01), Hirata et al.
patent: 2005/0282713 (2005-12-01), Hirata et al.
patent: 2006/0019840 (2006-01-01), Kawahara et al.
patent: 2006/0120642 (2006-06-01), Hirata et al.
patent: 2000-500898 (2000-01-01), None
patent: 2001-208069 (2001-08-01), None
patent: 2001-316687 (2001-11-01), None
patent: 2002-206094 (2002-07-01), None
patent: 2003/171685 (2003-06-01), None
patent: 2004-91524 (2004-03-01), None
patent: 2006-96849 (2006-04-01), None

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