Hirata; Katsushi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Hirata; Katsushi.The latest application filed is for "lubricating oil composition containing ionic liquid".

Company Profile

0.8.14

Hirata; Katsushi - Ozu JP
Hirata; Katsushi - Ehime JP
HIRATA; Katsushi - Ozu-shi JP
Hirata; Katsushi - Oozu JP
Hirata; Katsushi - Oozu-shi JP
Hirata, Katsushi - Kawasaki JP
Hirata; Katsushi - Saijo JP
Hirata, Katsushi - Saijo-shi JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Hydrodynamic bearing device and spindle motor using the same Grant 7,947,635 - Hirata , et al. May 24, 2	2011-05-24
Hydrodynamic bearing device, and spindle motor and information device using the same Grant 7,846,883 - Hirata , et al. December 7, 2	2010-12-07
Lubricant for fluid dynamic bearing, spindle motor equipped therewith and magnetic disk unit Grant 7,781,383 - Shiraishi , et al. August 24, 2	2010-08-24
Hydrodynamic bearing device, and spindle motor and information device using the same Grant 7,776,802 - Hirata , et al. August 17, 2	2010-08-17
Hydrodynamic bearing device, and spindle motor and information device using the same Grant 7,737,095 - Shiraishi , et al. June 15, 2	2010-06-15
Lubricating Oil Composition Containing Ionic Liquid App 20100105581 - Shiraishi; Takanori ; et al.	2010-04-29
Lubricating Oil Composition For Hydrodynamic Bearing Device And Hydrodynamic Bearing Device Using Same App 20100035773 - HIRATA; Katsushi ; et al.	2010-02-11
Hydrodynamic Bearing Device And Spindle Motor Using The Same App 20090290821 - HIRATA; Katsushi ; et al.	2009-11-26
Hydrodynamic bearing device, and spindle motor and information device using the same Grant 7,495,863 - Ohno , et al. February 24, 2	2009-02-24
Fluid bearing unit and spindle motor using the same Grant 7,459,416 - Hirata , et al. December 2, 2	2008-12-02
Hydrodynamic bearing device, and spindle motor and information device using the same App 20080107367 - Hirata; Katsushi ; et al.	2008-05-08
Lubricant for fluid dynamic bearing, spindle motor equipped therewith and magnetic disk unit App 20060252658 - Shiraishi; Takanori ; et al.	2006-11-09
Hydrodynamic bearing device, and spindle motor and information device using the same App 20060171613 - Shiraishi; Takanori ; et al.	2006-08-03
Hydrodynamic bearing device, and spindle motor and information device using the same App 20060120642 - Hirata; Katsushi ; et al.	2006-06-08
Hydrodynamic bearing device, and spindle motor and information device using the same App 20060072243 - Ohno; Hideaki ; et al.	2006-04-06
Hydrodynamic bearing device, and spindle motor and magnetic disk device using the same App 20060045397 - Hirata; Katsushi ; et al.	2006-03-02
Fluid bearing unit and spindle motor using the same App 20060008189 - Hirata; Katsushi ; et al.	2006-01-12
Hydrodynamic bearing device and spindle motor using the same App 20050282713 - Hirata, Katsushi ; et al.	2005-12-22
Semiconductor substrate and method for fabricating the same App 20050115642 - Fukuda, Tetsuo ; et al.	2005-06-02
Liquid bearing unit and magnetic disk device using the same Grant 6,685,356 - Hirata February 3, 2	2004-02-03
Semiconductor substrate and method for fabricating the same App 20040004271 - Fukuda, Tetsuo ; et al.	2004-01-08
Liquid bearing unit and magnetic disk device using the same App 20020173431 - Hirata, Katsushi	2002-11-21

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