Cha; Ellis T.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Cha; Ellis T..The latest application filed is for "electrical current as probe for modulation at head-disk interface".

Company Profile

0.30.30

Cha; Ellis T. - San Ramon CA
Cha; Ellis T. - San Jose CA
Cha; Ellis T. - Santa Clara CA

*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
Electrical current as probe for modulation at head-disk interface Grant 8,274,751 - Feng , et al. September 25, 2	2012-09-25
Electrical current as probe for modulation at head-disk interface Grant 8,139,306 - Feng , et al. March 20, 2	2012-03-20
Electrical current as probe for modulation at head-disk interface App 20110299191 - Feng; Zhu ; et al.	2011-12-08
Method and apparatus for providing an additional ground pad and electrical connection for grounding a magnetic recording head Grant 8,045,295 - Fu , et al. October 25, 2	2011-10-25
Method of reducing slider roll torque by balancing head gimbal assembly for improved seeking performance Grant 8,027,127 - Zeng , et al. September 27, 2	2011-09-27
Magnetic disk comprising an aluminum alloy oxynitride underlayer and a diamond-like carbon overcoat Grant 8,018,682 - Cheng , et al. September 13, 2	2011-09-13
Magnetic head/disk with transition metal oxynitride adhesion/corrosion barrier and diamond-like carbon overcoat bilayer Grant 8,014,104 - Cheng , et al. September 6, 2	2011-09-06
Forming an aluminum alloy oxynitride underlayer and a diamond-like carbon overcoat to protect a magnetic recording head and/or media Grant 8,009,387 - Cheng , et al. August 30, 2	2011-08-30
Air bearing surface with higher flying height for lower rotating speed drives Grant 7,978,436 - Cha , et al. July 12, 2	2011-07-12
Balanced head gimbal assembly for improved seeking performance App 20110146047 - Zeng; Qinghua ; et al.	2011-06-23
Suspension with bi-layer flexure base whose layers have different coefficients of thermal expansion to eliminate thermally induced flying height variations Grant 7,957,104 - Fu , et al. June 7, 2	2011-06-07
Balanced head gimbal assembly for improved seeking performance Grant 7,907,368 - Zeng , et al. March 15, 2	2011-03-15
Suspension with locally strengthened gimbal Grant 7,885,040 - Yang , et al. February 8, 2	2011-02-08
Magnetic disk comprising an aluminum alloy oxynitride underlayer and a diamond-like carbon overcoat App 20100310904 - Cheng; Shide ; et al.	2010-12-09
Forming an aluminum alloy oxynitride underlayer and a diamond-like carbon overcoat to protect a magnetic recording head and media App 20100307911 - Cheng; Shide ; et al.	2010-12-09
Air bearing design with a flatter pitch profile for reducing particle TAs Grant 7,837,885 - Cha , et al. November 23, 2	2010-11-23
Magnetic recording head and media comprising aluminum oxynitride underlayer and a diamond-like carbon overcoat Grant 7,782,569 - Cheng , et al. August 24, 2	2010-08-24
Air-bearing design with particle rejection features Grant 7,760,468 - Cha , et al. July 20, 2	2010-07-20
Non-contact measurement of slider fly height by electrostatic force Grant 7,679,857 - Zhu , et al. March 16, 2	2010-03-16
Adjustment of pitch and roll static torques in a disk drive head gimbal assembly Grant 7,617,737 - Zhu , et al. November 17, 2	2009-11-17
Electrical Current As Probe For Modulation At Head-disk Interface App 20090135512 - FENG; Zhu ; et al.	2009-05-28
Micro torque and micro stiffness measurement device Grant 7,506,552 - Hernandez , et al. March 24, 2	2009-03-24
Suspension With Locally Strengthened Gimbal App 20090009911 - Yang; Chao-Hui ; et al.	2009-01-08
Non-contact Measurement Of Slider Fly Height By Electrostatic Force App 20080316637 - ZHU; LI-YAN ; et al.	2008-12-25
Method And Apparatus For Providing An Air Bearing With Higher Flying Height For Lower Rotating Speed Drives App 20080304181 - CHA; ELLIS T. ; et al.	2008-12-11
Slider design including stiction reduction pads Grant 7,460,336 - Cha , et al. December 2, 2	2008-12-02
Non-contact measurement of slider fly height by electrostatic force Grant 7,440,219 - Zhu , et al. October 21, 2	2008-10-21
Balanced Hga For Improved Seeking Performance App 20080239577 - ZENG; Qinghua ; et al.	2008-10-02
Suspension With Bi-layer Flexure Base App 20080239572 - FU; Yen ; et al.	2008-10-02
Metal oxynitride adhesion/corrosion barrier layer and a diamond-like carbon overcoat App 20080231992 - Cheng; Shide ; et al.	2008-09-25
Head gimbal assembly with low head disk interaction response App 20080225437 - Fu; Yen ; et al.	2008-09-18
Micro torque and micro stiffness measurement device App 20080186633 - Hernandez; Manuel A. ; et al.	2008-08-07
Magnetic recording head and media overcoat App 20080187781 - Cheng; Shide ; et al.	2008-08-07
Magnetic recording head and media comprising aluminum oxynitride underlayer and a diamond-like carbon overcoat App 20080176108 - Cheng; Shide ; et al.	2008-07-24
Adjustment of pitch and roll static torques in a disk drive head gimbal assembly App 20080151430 - Zhu; Li-Yan ; et al.	2008-06-26
Non-contact measurement of slider fly height by electrostatic force App 20080123214 - Zhu; Li-Yan ; et al.	2008-05-29
Air bearing design with a flatter pitch profile for reducing particle TAs App 20080106818 - Cha; Ellis T. ; et al.	2008-05-08
Method for providing electrical crossover in a laminated structure Grant 7,342,750 - Yang , et al. March 11, 2	2008-03-11
Ultra-low flying height slider design Grant 7,233,460 - Cha June 19, 2	2007-06-19
Multiple level surface configuration for a sub-ambient pressure air bearing slider Grant 7,092,213 - Cha August 15, 2	2006-08-15
Method for testing a micro-actuator in a magnetic tester Grant 7,085,083 - Zhu , et al. August 1, 2	2006-08-01
Slider for high density magnetic recording App 20060132978 - Tian; Hong ; et al.	2006-06-22
Method and apparatus for active fly height control with heating and electrical charge Grant 7,046,473 - Fu , et al. May 16, 2	2006-05-16
Method and apparatus for active fly height control with heating and electrical charge App 20060056094 - Fu; Yen ; et al.	2006-03-16
Detection of slider-disk interference using a dynamic parametric test Grant 6,989,671 - Zhu , et al. January 24, 2	2006-01-24
Method for providing electrical crossover in laminated structure App 20050280944 - Yang, Chao-Hui ; et al.	2005-12-22
Air-bearing design with particle rejection features App 20050237668 - Cha, Ellis T. ; et al.	2005-10-27
Slider for high density magnetic recording App 20050231852 - Tian, Hong ; et al.	2005-10-20
Subambient pressure slider with partitioned subambient area Grant 6,943,989 - Cha , et al. September 13, 2	2005-09-13
Electrical current as probe for modulation at head-disk interface App 20050174667 - Feng, Zhu ; et al.	2005-08-11
Electrical current measurements at head-disk interface App 20050174665 - Zhang, Xiaofeng ; et al.	2005-08-11
Method for testing a micro-actuator in a magnetic tester App 20050122607 - Zhu, Li-Yan ; et al.	2005-06-09
Ultra-low flying height slider design App 20050010684 - Cha, Ellis T.	2005-01-13
Flexure design providing improved lift-off in a disk drive Grant 6,831,814 - Cha December 14, 2	2004-12-14
Subambient pressure slider including secondary structures in the subambient area Grant 6,765,758 - Cha July 20, 2	2004-07-20
Detection of slider-disk interference using a dynamic parametric test App 20040135575 - Zhu, Li-Yan ; et al.	2004-07-15
Subambient pressure slider with partitioned subambient area App 20030227717 - Cha, Ellis T. ; et al.	2003-12-11
Flexure Design Providing Improved Lift-off In A Disk Drive App 20010022709 - CHA, ELLIS T.	2001-09-20
Air bearing slider with variable sub-ambient pressure control Grant 5,677,812 - Cha October 14, 1	1997-10-14
Method for determining an outer diameter rolloff in a process for making magnetic disks Grant 5,497,085 - Tian , et al. March 5, 1	1996-03-05

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