Ellis T. Cha

Person

Santa Clara, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Air-bearing surface (ABS) design with side flow blocker for mitigat...
- Patent number 11,232,812
- Issue date Jan 25, 2022
- SAE Magnetics (H.K.) Ltd.
- Guoqiang Zheng
- G11 - INFORMATION STORAGE
Information Patent Grant
Protective shields under touchdown conditions for thermally assiste...
- Patent number 11,211,084
- Issue date Dec 28, 2021
- SAE Magnetics (H.K.) Ltd.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Grant
Air-bearing surface (ABS) design to reduce particle scratch risk
- Patent number 11,114,121
- Issue date Sep 7, 2021
- SAE Magnetics (H.K.) Ltd.
- Ben Ng Kwun Pan
- G11 - INFORMATION STORAGE
Information Patent Grant
TD detection with enhanced HDIs signal
- Patent number 10,839,843
- Issue date Nov 17, 2020
- SAE Magnetics (H.K.) Ltd.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Grant
Air-bearing surface (ABS) design to reduce particle scratch risk
- Patent number 10,811,046
- Issue date Oct 20, 2020
- SAE Magnetics (H.K.) Ltd.
- Ben Ng Kwun Pan
- G11 - INFORMATION STORAGE
Information Patent Grant
High power ratio mode for TAMR drives
- Patent number 10,679,653
- Issue date Jun 9, 2020
- SAE Magnetics (H.K.) Ltd.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Grant
Bumper pad design for TAMR drives
- Patent number 10,629,233
- Issue date Apr 21, 2020
- SAE Magnetics (H.K.) Ltd.
- Siu Yin Ngan
- G11 - INFORMATION STORAGE
Information Patent Grant
Dual write heater for slider surface topography control in double p...
- Patent number 10,360,935
- Issue date Jul 23, 2019
- Headway Technologies, Inc.
- Kowang Liu
- G11 - INFORMATION STORAGE
Information Patent Grant
Air-bearing design for hydrocarbon and lube pick-up improvements in...
- Patent number 9,940,960
- Issue date Apr 10, 2018
- SAE Magnetics (H.K.) Ltd.
- Ellis Cha
- G11 - INFORMATION STORAGE
Information Patent Grant
ABS design with soft bumper pads (SBP) for mitigating media damage...
- Patent number 9,892,746
- Issue date Feb 13, 2018
- SAE Magnetics H.K. Ltd.
- Guoqiang Zheng
- G11 - INFORMATION STORAGE
Information Patent Grant
Head DFH protrusion shape calibration by HDI sensor
- Patent number 9,251,829
- Issue date Feb 2, 2016
- SAE Magnetics (H.K.) Ltd.
- Siu Yin Ngan
- G11 - INFORMATION STORAGE
Information Patent Grant
Touch down detection with HDI sensor DC mode
- Patent number 8,976,481
- Issue date Mar 10, 2015
- SAE Magnetics (HK) Ltd.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Grant
ABS design for uniform touch-down and back-off in DFH applications
- Patent number 8,867,172
- Issue date Oct 21, 2014
- SAE Magnetics (H.K.) Ltd.
- Guoqiang Zheng
- G11 - INFORMATION STORAGE
Information Patent Grant
Spacing fluctuation compensation
- Patent number 8,767,339
- Issue date Jul 1, 2014
- SAE Magnetics (H.K.) Ltd.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Grant
Measurement of spacing fluctuation
- Patent number 8,717,702
- Issue date May 6, 2014
- SAE Magnetics (HK) Lid.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Grant
ABS design with multiple heaters
- Patent number 8,576,671
- Issue date Nov 5, 2013
- SAE Magnetics (H.K.) Ltd.
- Ellis Cha
- G11 - INFORMATION STORAGE
Information Patent Grant
Electrical current as probe for modulation at head-disk interface
- Patent number 8,274,751
- Issue date Sep 25, 2012
- SAE Magnetics (H.K.) Ltd.
- Zhu Feng
- G11 - INFORMATION STORAGE
Information Patent Grant
Gimbal mounted slider assembly with ramp limiter transverse bar
- Patent number 8,218,269
- Issue date Jul 10, 2012
- SAE Magnetics (H.K.) Ltd.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Grant
Air-bearing slider design for sub-nanometer clearance in hard disk...
- Patent number 8,184,405
- Issue date May 22, 2012
- SAE Magnetics (H.K.) Ltd.
- Guoqiang Zheng
- G11 - INFORMATION STORAGE
Information Patent Grant
Electrical current as probe for modulation at head-disk interface
- Patent number 8,139,306
- Issue date Mar 20, 2012
- SAE Magnetics (H.K.) Ltd.
- Zhu Feng
- G11 - INFORMATION STORAGE
Information Patent Grant
Gimbal with assymmetric dynamic stiffness
- Patent number 8,054,585
- Issue date Nov 8, 2011
- SAE Magnetics (H.K.) Ltd.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for providing an additional ground pad and ele...
- Patent number 8,045,295
- Issue date Oct 25, 2011
- SAE Magnetics (H.K.) Ltd.
- Yen Fu
- B24 - GRINDING POLISHING
Information Patent Grant
Method of reducing slider roll torque by balancing head gimbal asse...
- Patent number 8,027,127
- Issue date Sep 27, 2011
- SAE Magnetics (H.K.) Ltd.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk comprising an aluminum alloy oxynitride underlayer an...
- Patent number 8,018,682
- Issue date Sep 13, 2011
- SAE Magnetics (H.K.) Ltd.
- Shide Cheng
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Magnetic head/disk with transition metal oxynitride adhesion/corros...
- Patent number 8,014,104
- Issue date Sep 6, 2011
- SAE Magnetics (H.K.) Ltd.
- Shide Cheng
- G11 - INFORMATION STORAGE
Information Patent Grant
Forming an aluminum alloy oxynitride underlayer and a diamond-like...
- Patent number 8,009,387
- Issue date Aug 30, 2011
- SAE Magnetics (H.K.) Ltd.
- Shide Cheng
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Gimbal mounted slider assembly with transverse bars connecting inne...
- Patent number 8,000,061
- Issue date Aug 16, 2011
- SAE Magnetics (H.K.) Ltd.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Grant
Air bearing surface with higher flying height for lower rotating sp...
- Patent number 7,978,436
- Issue date Jul 12, 2011
- SAE Magnetics (H.K.) Ltd.
- Ellis T. Cha
- G11 - INFORMATION STORAGE
Information Patent Grant
ABS design for dynamic flying height (DFH) applications
- Patent number 7,969,685
- Issue date Jun 28, 2011
- SAE Magnetics (H.K.) Ltd.
- Xinjiang Shen
- G11 - INFORMATION STORAGE
Information Patent Grant
Air-bearing design for hard disk drive (HDD) applications
- Patent number 7,961,433
- Issue date Jun 14, 2011
- SAE Magnetics (H.K.) Ltd.
- Guoqiang Zheng
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Air-Bearing Surface (ABS) Design to Reduce Particle Scratch Risk
- Publication number 20210035603
- Publication date Feb 4, 2021
- SAE Magnetics (H.K.) Ltd.
- Ben Ng Kwun Pan
- G11 - INFORMATION STORAGE
Information Patent Application
Air-Bearing Surface (ABS) Design to Reduce Particle Scratch Risk
- Publication number 20200020355
- Publication date Jan 16, 2020
- SAE Magnetics (H.K.) Ltd.
- Ben Ng Kwun Pan
- G11 - INFORMATION STORAGE
Information Patent Application
Air-Bearing Design for Hydrocarbon and Lube Pick-Up Improvements in...
- Publication number 20170345452
- Publication date Nov 30, 2017
- SAE Magnetics (H.K.) Ltd.
- Ellis Cha
- G11 - INFORMATION STORAGE
Information Patent Application
ABS Design for Uniform Touch-Down and Back-Off in DFH Applications
- Publication number 20140036384
- Publication date Feb 6, 2014
- HEADWAY TECHNOLOGIES, INC.
- Guoqiang Zheng
- G11 - INFORMATION STORAGE
Information Patent Application
Spacing Fluctuation Compensation
- Publication number 20130250446
- Publication date Sep 26, 2013
- HEADWAY TECHNOLOGIES, INC.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Application
Measurement of Spacing Fluctuation by HDI Sensor
- Publication number 20130250455
- Publication date Sep 26, 2013
- HEADWAY TECHNOLOGIES, INC.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Application
Head DFH protrusion shape calibration by HDI sensor
- Publication number 20130094104
- Publication date Apr 18, 2013
- SAE MAGNETICS (H.K.) LTD.
- Siu Yin Ngan
- G11 - INFORMATION STORAGE
Information Patent Application
Electrical current as probe for modulation at head-disk interface
- Publication number 20110299191
- Publication date Dec 8, 2011
- SAE MAGNETICS (H.K.) LTD.
- Zhu FENG
- G11 - INFORMATION STORAGE
Information Patent Application
Suspension gimbal designs with better dynamic performances
- Publication number 20110299196
- Publication date Dec 8, 2011
- SAE MAGNETICS (H.K.) LTD.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Application
Balanced head gimbal assembly for improved seeking performance
- Publication number 20110146047
- Publication date Jun 23, 2011
- SAE MAGNETICS (H.K.) LTD.
- Qinghua ZENG
- G11 - INFORMATION STORAGE
Information Patent Application
Forming an aluminum alloy oxynitride underlayer and a diamond-like...
- Publication number 20100307911
- Publication date Dec 9, 2010
- SAE MAGNETICS (H.K.) LTD.
- Shide Cheng
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Magnetic disk comprising an aluminum alloy oxynitride underlayer an...
- Publication number 20100310904
- Publication date Dec 9, 2010
- SAE MAGNETICS (H.K.) LTD.
- Shide Cheng
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Suspension gimbal designs with better dynamic performances
- Publication number 20100172057
- Publication date Jul 8, 2010
- SAE MAGNETICS (H.K.) LTD.
- Qinghua Zeng
- G11 - INFORMATION STORAGE
Information Patent Application
ABS design for dynamic flying height (DFH) applications
- Publication number 20100039732
- Publication date Feb 18, 2010
- SAE MAGNETICS (H.K.) LTD.
- Xinjiang Shen
- G11 - INFORMATION STORAGE
Information Patent Application
ABS design for dynamic flying height (DFH) applications
- Publication number 20090262458
- Publication date Oct 22, 2009
- SAE MAGNETICS (H.K.) LTD.
- Xinjiang Shen
- G11 - INFORMATION STORAGE
Information Patent Application
Air-bearing design for hard disk drive (HDD) applications
- Publication number 20090219651
- Publication date Sep 3, 2009
- SAE MAGNETICS (H.K.) LTD.
- Guoqiang Zheng
- G11 - INFORMATION STORAGE
Information Patent Application
ELECTRICAL CURRENT AS PROBE FOR MODULATION AT HEAD-DISK INTERFACE
- Publication number 20090135512
- Publication date May 28, 2009
- SAE Magnetics (H.K.) Ltd.
- Zhu FENG
- G11 - INFORMATION STORAGE
Information Patent Application
MEASURING AND NEUTRALIZING THE ELECTRICAL CHARGE AT THE INTERFACE O...
- Publication number 20090074949
- Publication date Mar 19, 2009
- SAE Magnetics (H.K.) Ltd.
- Zhu FENG
- G11 - INFORMATION STORAGE
Information Patent Application
Suspension With Locally Strengthened Gimbal
- Publication number 20090009911
- Publication date Jan 8, 2009
- SAE Magnetics (H.K.) Ltd.
- Chao-Hui Yang
- G11 - INFORMATION STORAGE
Information Patent Application
NON-CONTACT MEASUREMENT OF SLIDER FLY HEIGHT BY ELECTROSTATIC FORCE
- Publication number 20080316637
- Publication date Dec 25, 2008
- SAE Magnetics (H.K.) Ltd.
- LI-YAN ZHU
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD AND APPARATUS FOR PROVIDING AN AIR BEARING WITH HIGHER FLYIN...
- Publication number 20080304181
- Publication date Dec 11, 2008
- SAE MAGNETICS (H.K.) LTD.
- ELLIS T. CHA
- G11 - INFORMATION STORAGE
Information Patent Application
HYBRID COATING FOR MAGNETIC HEADS
- Publication number 20080285173
- Publication date Nov 20, 2008
- Zhu Feng
- G11 - INFORMATION STORAGE
Information Patent Application
Method to protect the magnetic recording head from thermal asperiti...
- Publication number 20080253026
- Publication date Oct 16, 2008
- SAE MAGNETICS (H.K.) LTD.
- Niraj Mahdev
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD AND APPARATUS FOR PROVIDING AN ADDITIONAL GROUND PAD AND ELE...
- Publication number 20080253025
- Publication date Oct 16, 2008
- SAE Magnetics (H.K.) Ltd.
- Yen FU
- B24 - GRINDING POLISHING
Information Patent Application
BALANCED HGA FOR IMPROVED SEEKING PERFORMANCE
- Publication number 20080239577
- Publication date Oct 2, 2008
- SAE Magnetics (H.K.) Ltd.
- Qinghua ZENG
- G11 - INFORMATION STORAGE
Information Patent Application
SUSPENSION WITH BI-LAYER FLEXURE BASE
- Publication number 20080239572
- Publication date Oct 2, 2008
- SAE Magnetics (H.K.) Ltd.
- Yen FU
- G11 - INFORMATION STORAGE
Information Patent Application
Metal oxynitride adhesion/corrosion barrier layer and a diamond-lik...
- Publication number 20080231992
- Publication date Sep 25, 2008
- SAE MAGNETICS (H.K.) LTD.
- Shide Cheng
- G11 - INFORMATION STORAGE
Information Patent Application
Head gimbal assembly with low head disk interaction response
- Publication number 20080225437
- Publication date Sep 18, 2008
- Yen Fu
- G11 - INFORMATION STORAGE
Information Patent Application
Micro torque and micro stiffness measurement device
- Publication number 20080186633
- Publication date Aug 7, 2008
- Manuel A. Hernandez
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording head and media overcoat
- Publication number 20080187781
- Publication date Aug 7, 2008
- SAE MAGNETICS (H.K.) LTD.
- Shide Cheng
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Ellis T. Cha

Person

Patents Grantslast 30 patents

Air-bearing surface (ABS) design with side flow blocker for mitigat...

Protective shields under touchdown conditions for thermally assiste...

Air-bearing surface (ABS) design to reduce particle scratch risk

TD detection with enhanced HDIs signal

Air-bearing surface (ABS) design to reduce particle scratch risk

High power ratio mode for TAMR drives

Bumper pad design for TAMR drives

Dual write heater for slider surface topography control in double p...

Air-bearing design for hydrocarbon and lube pick-up improvements in...

ABS design with soft bumper pads (SBP) for mitigating media damage...

Head DFH protrusion shape calibration by HDI sensor

Touch down detection with HDI sensor DC mode

ABS design for uniform touch-down and back-off in DFH applications

Spacing fluctuation compensation

Measurement of spacing fluctuation

ABS design with multiple heaters

Electrical current as probe for modulation at head-disk interface

Gimbal mounted slider assembly with ramp limiter transverse bar

Air-bearing slider design for sub-nanometer clearance in hard disk...

Electrical current as probe for modulation at head-disk interface

Gimbal with assymmetric dynamic stiffness

Method and apparatus for providing an additional ground pad and ele...

Method of reducing slider roll torque by balancing head gimbal asse...

Magnetic disk comprising an aluminum alloy oxynitride underlayer an...

Magnetic head/disk with transition metal oxynitride adhesion/corros...

Forming an aluminum alloy oxynitride underlayer and a diamond-like...

Gimbal mounted slider assembly with transverse bars connecting inne...

Air bearing surface with higher flying height for lower rotating sp...

ABS design for dynamic flying height (DFH) applications

Air-bearing design for hard disk drive (HDD) applications

Patents Applicationslast 30 patents

Air-Bearing Surface (ABS) Design to Reduce Particle Scratch Risk

Air-Bearing Surface (ABS) Design to Reduce Particle Scratch Risk

Air-Bearing Design for Hydrocarbon and Lube Pick-Up Improvements in...

ABS Design for Uniform Touch-Down and Back-Off in DFH Applications

Spacing Fluctuation Compensation

Measurement of Spacing Fluctuation by HDI Sensor

Head DFH protrusion shape calibration by HDI sensor

Electrical current as probe for modulation at head-disk interface

Suspension gimbal designs with better dynamic performances

Balanced head gimbal assembly for improved seeking performance

Forming an aluminum alloy oxynitride underlayer and a diamond-like...

Magnetic disk comprising an aluminum alloy oxynitride underlayer an...

Suspension gimbal designs with better dynamic performances

ABS design for dynamic flying height (DFH) applications

ABS design for dynamic flying height (DFH) applications

Air-bearing design for hard disk drive (HDD) applications

ELECTRICAL CURRENT AS PROBE FOR MODULATION AT HEAD-DISK INTERFACE

MEASURING AND NEUTRALIZING THE ELECTRICAL CHARGE AT THE INTERFACE O...

Suspension With Locally Strengthened Gimbal

NON-CONTACT MEASUREMENT OF SLIDER FLY HEIGHT BY ELECTROSTATIC FORCE

METHOD AND APPARATUS FOR PROVIDING AN AIR BEARING WITH HIGHER FLYIN...

HYBRID COATING FOR MAGNETIC HEADS

Method to protect the magnetic recording head from thermal asperiti...

METHOD AND APPARATUS FOR PROVIDING AN ADDITIONAL GROUND PAD AND ELE...

BALANCED HGA FOR IMPROVED SEEKING PERFORMANCE

SUSPENSION WITH BI-LAYER FLEXURE BASE

Metal oxynitride adhesion/corrosion barrier layer and a diamond-lik...

Head gimbal assembly with low head disk interaction response

Micro torque and micro stiffness measurement device

Magnetic recording head and media overcoat