Jenghung Chen

Person

Cupertino, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Data storage device seeking multiple actuators to improve performance
- Patent number 11,657,843
- Issue date May 23, 2023
- Western Digital Technologies, Inc.
- Kexiu Liu
- G11 - INFORMATION STORAGE
Information Patent Grant
Data storage device seeking multiple actuators to improve performance
- Patent number 11,257,517
- Issue date Feb 22, 2022
- Western Digital Technologies, Inc.
- Kexiu Liu
- G11 - INFORMATION STORAGE
Information Patent Grant
Calibrating elevator actuator for disk drive
- Patent number 11,043,243
- Issue date Jun 22, 2021
- Western Digital Technologies, Inc.
- Kexiu Liu
- G11 - INFORMATION STORAGE
Information Patent Grant
Calibrating elevator actuator for disk drive
- Patent number 10,839,838
- Issue date Nov 17, 2020
- Western Digital Technologies, Inc.
- Kuang-Yang Tu
- G11 - INFORMATION STORAGE
Information Patent Grant
Calibrating elevator actuator for disk drive
- Patent number 10,783,912
- Issue date Sep 22, 2020
- Western Digital Technologies, Inc.
- Kuang-Yang Tu
- G11 - INFORMATION STORAGE
Information Patent Grant
Calibrating elevator actuator for disk drive
- Patent number 10,622,012
- Issue date Apr 14, 2020
- Western Digital Technologies, Inc.
- Kuang-Yang Tu
- G11 - INFORMATION STORAGE
Information Patent Grant
Electronic system with unload management mechanism and method of op...
- Patent number 9,208,808
- Issue date Dec 8, 2015
- Western Digital Technologies, Inc.
- Jianghong Ding
- G11 - INFORMATION STORAGE
Information Patent Grant
Reducing acoustic noise in a disk drive when exiting idle mode
- Patent number 8,995,082
- Issue date Mar 31, 2015
- Western Digital Technologies, Inc.
- Mingji Lou
- G11 - INFORMATION STORAGE
Information Patent Grant
Reducing acoustic noise in a disk drive when exiting idle mode
- Patent number 8,760,796
- Issue date Jun 24, 2014
- Western Digital Technologies, Inc.
- Mingji Lou
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive employing overlapping servo zones to facilitate servo zo...
- Patent number 8,724,245
- Issue date May 13, 2014
- Western Digital Technologies, Inc.
- Steven C. Smith
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for improved repeatable runout learning in a disk drive
- Patent number 8,643,976
- Issue date Feb 4, 2014
- Western Digital Technologies, Inc.
- Zhi Wang
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive to characterize misaligned servo wedges
- Patent number 7,551,390
- Issue date Jun 23, 2009
- Western Digital Technologies, Inc.
- Zhi Wang
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive compensation of bias imparted by a flex circuit cable ut...
- Patent number 7,253,989
- Issue date Aug 7, 2007
- Western Digital Technologies, Inc.
- Pui-Wah Lau
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive adjusting write clock frequency to compensate for eccent...
- Patent number 7,251,098
- Issue date Jul 31, 2007
- Western Digital Technologies, Inc.
- Zhi Wang
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive to characterize misaligned servo wedges
- Patent number 7,212,374
- Issue date May 1, 2007
- Western Digital Technologies, Inc.
- Zhi Wang
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive identifying starting track by performing multiple load o...
- Patent number 7,209,310
- Issue date Apr 24, 2007
- Western Digital Technologies, Inc.
- Chun Sei Tsai
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive employing momentum based unload during power failure
- Patent number 7,095,579
- Issue date Aug 22, 2006
- Western Digital Technologies, Inc.
- Robert P. Ryan
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive recursively estimating repeatable runout
- Patent number 7,088,547
- Issue date Aug 8, 2006
- Western Digital Technologies, Inc.
- Zhi Wang
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive estimating a sinusoidal error in a wedge time period due...
- Patent number 7,068,451
- Issue date Jun 27, 2006
- Western Digital Technologies, Inc.
- Zhi Wang
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk drive employing wedge spindle speed control with eccentricity...
- Patent number 6,972,540
- Issue date Dec 6, 2005
- Western Digital Technologies, Inc.
- Zhi Wang
- G11 - INFORMATION STORAGE
Information Patent Grant
Performance of a rotary actuator in a disk drive
- Patent number 6,903,897
- Issue date Jun 7, 2005
- Western Digital Technologies, Inc.
- Zhi Wang
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for transparent switching and controlling optical signals us...
- Patent number 6,529,654
- Issue date Mar 4, 2003
- Nayna Networks, Inc.
- Richard Koonwai Wong
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Data Storage Device Seeking Multiple Actuators To Improve Performance
- Publication number 20220399038
- Publication date Dec 15, 2022
- Western Digital Technologies, Inc.
- Kexiu LIU
- G11 - INFORMATION STORAGE
Information Patent Application
CALIBRATING ELEVATOR ACTUATOR FOR DISK DRIVE
- Publication number 20200381016
- Publication date Dec 3, 2020
- Western Digital Technologies, Inc.
- Kexiu Liu
- G11 - INFORMATION STORAGE
Information Patent Application
CALIBRATING ELEVATOR ACTUATOR FOR DISK DRIVE
- Publication number 20200372931
- Publication date Nov 26, 2020
- Western Digital Technologies, Inc.
- Kuang-Yang Tu
- G11 - INFORMATION STORAGE

Jenghung Chen

Person

Patents Grantslast 30 patents

Data storage device seeking multiple actuators to improve performance

Data storage device seeking multiple actuators to improve performance

Calibrating elevator actuator for disk drive

Calibrating elevator actuator for disk drive

Calibrating elevator actuator for disk drive

Calibrating elevator actuator for disk drive

Electronic system with unload management mechanism and method of op...

Reducing acoustic noise in a disk drive when exiting idle mode

Reducing acoustic noise in a disk drive when exiting idle mode

Disk drive employing overlapping servo zones to facilitate servo zo...

Method for improved repeatable runout learning in a disk drive

Disk drive to characterize misaligned servo wedges

Disk drive compensation of bias imparted by a flex circuit cable ut...

Disk drive adjusting write clock frequency to compensate for eccent...

Disk drive to characterize misaligned servo wedges

Disk drive identifying starting track by performing multiple load o...

Disk drive employing momentum based unload during power failure

Disk drive recursively estimating repeatable runout

Disk drive estimating a sinusoidal error in a wedge time period due...

Disk drive employing wedge spindle speed control with eccentricity...

Performance of a rotary actuator in a disk drive

Method for transparent switching and controlling optical signals us...

Patents Applicationslast 30 patents

Data Storage Device Seeking Multiple Actuators To Improve Performance

CALIBRATING ELEVATOR ACTUATOR FOR DISK DRIVE

CALIBRATING ELEVATOR ACTUATOR FOR DISK DRIVE