Liu; Joseph Cheng-Tsu

Patent Applications and Registrations

Patent applications and USPTO patent grants for Liu; Joseph Cheng-Tsu.The latest application filed is for "ramp structure with inclined contact surface".

Company Profile

0.12.6

Liu; Joseph Cheng-Tsu - Singapore SG

*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
Ramp structure with inclined contact surface Grant 7,675,712 - Liu , et al. March 9, 2	2010-03-09
Slider having transducers orientated in different directions Grant 7,532,437 - Liu , et al. May 12, 2	2009-05-12
Ramp structure with inclined contact surface App 20080007874 - Liu; Joseph Cheng-Tsu ; et al.	2008-01-10
Method and apparatus for increasing storage capacity App 20070165331 - Liu; Xiong ; et al.	2007-07-19
Method to achieve higher track density by allowing only one-sided track encroachment Grant 7,082,007 - Liu , et al. July 25, 2	2006-07-25
Biased retaining ring for disc drive Grant 6,856,485 - Toh , et al. February 15, 2	2005-02-15
Active damping of two-stage actuator system in a disc drive Grant 6,791,786 - He , et al. September 14, 2	2004-09-14
Variable track densities on a recording medium to compensate for non-repeatable runout (NRRO) error Grant 6,765,737 - Lim , et al. July 20, 2	2004-07-20
System and method to minimize bearing pivot effect in disc drive actuator Grant 6,606,214 - Liu , et al. August 12, 2	2003-08-12
Method and apparatus for reducing track misregistration from servo track writing Grant 6,476,995 - Liu , et al. November 5, 2	2002-11-05
Active damping of two-stage actuator system in a disc drive App 20020101681 - He, JianBo ; et al.	2002-08-01
Hinge pivot for disc drive App 20020101688 - Liu, Joseph Cheng-Tsu ; et al.	2002-08-01
Low friction bearing pivot for disc drive Grant 6,411,471 - Liu , et al. June 25, 2	2002-06-25
Method to achieve higher track density by allowing only one-sided track encroachment App 20020071198 - Liu, Xiong ; et al.	2002-06-13
Disc drive actuator latch system for high rotational shock Grant 6,400,533 - Liu , et al. June 4, 2	2002-06-04
Wrap around shock absorber for disc drives Grant 6,324,054 - Chee , et al. November 27, 2	2001-11-27
Biased retaining ring for disc drive App 20010040770 - Toh, Michael Joo Chiang ; et al.	2001-11-15
Gimbal suspension for supporting a head in a disc drive assembly Grant 5,856,896 - Berg , et al. January 5, 1	1999-01-05

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