Inventor

Yu Sun

Inventor

Fremont, CA, US

Overview

2003–2019

Patent span

Physics

Primary field (CPC G)

Patents· 63 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer70%

G06FElectric digital data processing7%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h104%

G01RMeasuring electric variables3%

H04NPictorial communication, e.g. television3%

B82YSpecific uses or applications of nanostructures1%

C12MApparatus for enzymology or microbiology1%

G02BOptical elements, systems or apparatus1%

G06NComputing arrangements based on specific computational models1%

H01RElectrically-conductive connections1%

PatentTitleYear

10,296,426Storage control of storage media subject to write amplification effects2019 9,996,433Storage control of storage media subject to write amplification effects2018 9,501,242'Solid-state drive data security enhancement'2016 8,928,801'Adjustment apparatus for camera module'2015 8,922,701'Auxiliary focusing system and focusing method'2014 8,557,582'System, apparatus and method for applying mechanical force to a material'2013 8,194,359'Piezoelectric element having etched portion to form stepped recesses between layers and manufacturing method thereof, head gimbal assembly, and disk drive device with the same'2012 8,144,421'Radial position seek tuning for acoustic performance'2012 8,134,809'Disk drive head gimbal assembly including a PZT micro-actuator with a pair of separate PZT elements'2012 7,843,666'Suspension, head gimbal assembly and manufacturing method thereof, and disk drive unit with the same'2010 7,821,743'Micro-actuator for use in small platform disk drive devices, and method of making the same'2010 7,728,539'Methods and apparatuses for measuring VCM BEMF at a VCM control update rate'2010 7,724,615'Apparatus and method for determining type of an optical disk'2010 7,679,851'Methods and structure for improved disk head switching to avoid zipper zones'2010 7,643,239'Controller selection to reduce written-in run-out'2010 7,619,846'Self-servo writing using staged patterning'2009 7,551,387'Servo writing with offset compensation for prewritten reference'2009 7,545,593'Magnetic storage systems and methods with tighter write fault window to improve reliability'2009 7,538,971'Microactuator control adjustment using temperature sensor measurements'2009 7,489,469'Embedded runout correction based on written-in runout measurement'2009 7,477,159'Detection device and method thereof'2009 7,474,496'Micro actuator DC gain calibration scheme for HDD dual-stage actuator systems'2009 7,423,834'Convolution based multiple harmonic frequency repeatable runout compensation method and apparatus'2008 7,414,809'Servo writing using radially overlapped servo segments'2008 7,388,727'Method and apparatus for moving off of a disk drive\'s crash stop in a consistent manner'2008 7,382,570'Dynamically controlling seek profile in an acceleration tracking seek controller'2008 7,375,911'Piezoelectric actuator and sensor for disk drive dual-stage servo systems'2008 7,304,818'Preconditioning an elastomeric stop member for use as a reference position'2007 7,286,317'Disk drive that compensates for repeatable runout of a disk based on measured timing between servo information and methods thereof'2007 7,283,321'Disk drives and methods allowing for dual stage actuator adaptive seek control and microactuator gain calibration'2007 7,233,556'Disk discrimination method'2007 7,230,789'Method and apparatus for performing a self-servo write operation in a disk drive using spiral servo information'2007 7,215,499'Multi-stage actuator disk drive and methods for controlling a transducer with settle-switching state dependent feed-forward control'2007 7,212,369'Method and apparatus for performing a spiral self-servo write operation in a disk drive using an auto detection scheme'2007 7,193,797'Method and apparatus for detecting and monitoring a bi-state head when self-servowriting a disk drive using spiral servo information'2007 7,173,886'Track jump method for dual-layered optical disk reading device'2007 7,167,336'Method for providing variable gain, iterative embedded runout correction in a disk drive'2007 7,164,643'Data extraction for an optical disc drive'2007 7,158,325'Disk drive head touchdown detection with improved discrimination'2007 7,154,689'Apparatus for writing servo bursts on a disk with servo track pitch based on read element width and methods of manufacturing same'2006 7,149,044'Methods, apparatus and computer program products for writing tracks on a disk based on an available stroke'2006 7,145,745'Multi-stage actuator disk drives, methods, and computer program products that compensate for repeatable runout based on estimated secondary actuator position'2006 7,139,149'Adapting compensation for repeatable runout of sectors based on tracked sector adaptation status'2006 7,126,785'Multi-stage actuator disk drives, methods, and computer program products for seeking and then maintaining a transducer on track'2006 7,116,513'Positioning transducers based on a compensation scheme that varies based on transducer vibrational state'2006 7,106,542'Method and apparatus for determining embedded runout correction values when self-servo writing or partial self-servo writing a disk drive'2006 7,085,094'Interleaved repeatable runout correction for data storage device'2006 7,064,570'Method for locating IDDQ defects using multiple controlled collapse chip connections current measurement on an automatic tester'2006 7,054,096'Method and apparatus for determining embedded runout correction values'2006 7,027,253'Microactuator servo control during self writing of servo data'2006 7,012,780'Disk drive and methods that calibrate micro actuator positioning before seek operations'2006 6,987,638'Method and apparatus for applying adaptive non-linear repeatable runout compensation in a disk drive'2006 6,977,794'Asymmetric seek velocity profile to improve power failure reliability for rigid disk drive with ramp'2005 6,785,080'Method and apparatus for providing a variable rate oversampling digital filter for resonance compensation in disk drive servo control systems'2004 6,765,747'Method and apparatus for reducing low frequency repeatable runout in hard disk drive'2004 6,745,167'Fuzzy-neuro method for discriminating optical disk type'2004 6,687,081'Disk drive using seek profile to enhance fly height control'2004 6,677,774'Method for locating IDDQ defects using multiple controlled collapse chip connections current measurement on an automatic tester'2004 6,586,828'Integrated circuit bus grid having wires with pre-selected variable widths'2003 6,584,596'Method of designing a voltage partitioned solder-bump package'2003 6,555,981'Method of detecting reverse rotation of direct-current motor by using back electromotive force'2003 6,538,314'Power grid wiring for semiconductor devices having voltage islands'2003 6,523,150'Method of designing a voltage partitioned wirebond package'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2019Patents assigned to IBM (9)· patent assignee history

2003–2010Patents assigned to LITE ON IT CORP (6)· patent assignee history

2003–2010Based in Taipei, TW· patent location history

2003–2006Based in Williston, VT, US· patent location history

2004–2009Patents assigned to MAXTOR CORP (33)· patent assignee history

2004–2012Based in Fremont, CA, US· patent location history

2007–2012Patents assigned to SEAGATE TECHNOLOGY LLC (7)· patent assignee history

2010–2012Patents assigned to SAE MAGNETICS HK LTD (4)· patent assignee history

2010–2012Based in Dongguan, CN· patent location history

2016–2019Based in Nanjing, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MAXTOR CORP	33	2004–2009
IBM	9	2003–2019
SEAGATE TECHNOLOGY LLC	7	2007–2012
LITE ON IT CORP	6	2003–2010
SAE MAGNETICS HK LTD	4	2010–2012

Locations

Location	Patents	Span
Fremont, California, US	37	2004–2012
Taipei, TW	5	2003–2010
Dongguan, CN	4	2010–2012
Nanjing, CN	3	2016–2019
Williston, VT, US	3	2003–2006