Lee; Hyung Jai

Patent Applications and Registrations

Patent applications and USPTO patent grants for Lee; Hyung Jai.The latest application filed is for "method and apparatus for a disk damper including an enclosing flow chamber wall for a hard disk drive".

Company Profile

0.29.42

Lee; Hyung Jai - Cupertino CA
Lee; Hyung Jai - San Jose 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
Balanced motor micro-actuator Grant 8,279,561 - Kwon , et al. October 2, 2	2012-10-02
In-situ dynamic pitch and roll adjustment in hard disk drives Grant 8,199,438 - Sharma , et al. June 12, 2	2012-06-12
Method and apparatus for a disk damper including an enclosing flow chamber wall for a hard disk drive Grant 8,199,568 - Kwon , et al. June 12, 2	2012-06-12
Method and apparatus for dampening and filtering air flow effects in a hard disk drive Grant 8,194,345 - Kwon , et al. June 5, 2	2012-06-05
Method and apparatus coupling to a slider in a hard disk drive for microactuation Grant 8,064,172 - Kwon , et al. November 22, 2	2011-11-22
Apparatus and method for a piezoelectric micro-actuator for a hard disk drive Grant 7,974,045 - Kwon , et al. July 5, 2	2011-07-05
Method And Apparatus For A Disk Damper Including An Enclosing Flow Chamber Wall For A Hard Disk Drive App 20100188777 - Kwon; Haesung ; et al.	2010-07-29
In-situ Dynamic Pitch And Roll Adjustment In Hard Disk Drives App 20100177443 - Sharma; Vinod ; et al.	2010-07-15
Method and apparatus for disk damper extending across all data tracks of a rotating disk surface upwind of the voice coil actuator in a hard disk drive Grant 7,697,236 - Han , et al. April 13, 2	2010-04-13
Method And Apparatus For A Hard Disk Drive Including A Balanced Micro-actuator App 20100067147 - Kwon; Haesung ; et al.	2010-03-18
Method and apparatus using embedded sensor in a piezoelectric micro-actuator in a hard disk drive Grant 7,667,932 - Kwon , et al. February 23, 2	2010-02-23
Method And Apparatus For Dampening And Filtering Air Flow Effects In A Hard Disk Drive App 20100007987 - Kwon; Haesung ; et al.	2010-01-14
Method and apparatus to detect sub-micron particles in a hard disk drive with optical pickup Grant 7,630,167 - Kwon , et al. December 8, 2	2009-12-08
Method and apparatus coupling at least one piezoelectric device to a slider in a hard disk drive for microactuation Grant 7,612,967 - Kwon , et al. November 3, 2	2009-11-03
Method and apparatus of dual stage servo control with dual control paths and decoupling feedback for track following in a hard disk drive Grant 7,583,468 - Sharma , et al. September 1, 2	2009-09-01
Method and for wide track erasure in a hard disk drive App 20090210206 - Kwon; Haesung ; et al.	2009-08-20
Method and apparatus for estimating micro-actuator stroke sensitivity in a hard disk drive Grant 7,576,940 - Lee , et al. August 18, 2	2009-08-18
Method and apparatus for sensing leakage current to estimate and possibly adjust flying height of a read-write head in a hard disk drive Grant 7,573,668 - Kwon , et al. August 11, 2	2009-08-11
Method and apparatus for a single piezoelectric micro-actuator in a head gimbal assembly of a hard disk drive Grant 7,558,026 - Kwon , et al. July 7, 2	2009-07-07
Method and apparatus for independent piezoelectric excitation in the micro-actuator assemblies of a hard disk drive for improved drive reliability App 20090034128 - Sharma; Vinod ; et al.	2009-02-05
High-flow rate filter wall design App 20080304178 - Kwon; Haesung ; et al.	2008-12-11
Flexure for head gimbal assembly with narrow gimbal width in a hard disk drive App 20080304183 - Kwon; Haesung ; et al.	2008-12-11
Flow balancer for track misregistration improvement App 20080278849 - Kwon; Haesung ; et al.	2008-11-13
Written-in repeatable run-out correction for hard disk drives Grant 7,440,223 - Kang , et al. October 21, 2	2008-10-21
Online identification of secondary actuator transfer function via system decoupling in multiple-stage actuator servo systems in disk drives Grant 7,385,780 - Kim , et al. June 10, 2	2008-06-10
Written-in repeatable run-out correction for hard disk drives App 20080117541 - Kang; Chang-Ik ; et al.	2008-05-22
Top disk-damper imbedded hard disk drive App 20080094748 - Han; Yun-Sik ; et al.	2008-04-24
Online Identification Of Secondary Actuator Transfer Function Via System Decoupling In Multiple-stage Actuator Servo Systems In Disk Drives App 20080088965 - Kim; Young Hoon ; et al.	2008-04-17
Head gimbal assemblies for very low flying height heads with optional micro-actuators in a hard disk drive Grant 7,336,436 - Sharma , et al. February 26, 2	2008-02-26
Method and apparatus for single written-in Repeatable Run-Out correction function used in multi-stage actuation control of hard disk drive Grant 7,333,288 - Kim , et al. February 19, 2	2008-02-19
Method and apparatus for single written-in Repeatable Run-Out correction function used in multi-stage actuation control of hard disk drive App 20080007863 - Kim; Young-Hoon ; et al.	2008-01-10
Method and apparatus for head gimbal assembly with improved shock performance in hard disk drive App 20080002302 - Kwon; Hae-sung ; et al.	2008-01-03
Apparatus and method for a piezoelectric micro-actuator for a hard disk drive App 20080002305 - Kwon; Hae-sung ; et al.	2008-01-03
Method and apparatus for a single piezoelectric micro-actuator in a head gimbal assembly of a hard disk drive App 20070291418 - Kwon; Haesung ; et al.	2007-12-20
Method and apparatus for a D33 mode piezoelectric actuator with a bending motion Grant 7,282,836 - Kwon , et al. October 16, 2	2007-10-16
Method and apparatus for estimating and controlling the flying height of a read-write head in a hard disk drive Grant 7,280,305 - Kwon , et al. October 9, 2	2007-10-09
Method and apparatus for a MEMS micro-actuator assembly in a hard disk drive Grant 7,248,443 - Kwon , et al. July 24, 2	2007-07-24
Method and apparatus for sensing and controlling the flying height of a read-write head in a hard disk drive App 20070165324 - Kwon; Haesung ; et al.	2007-07-19
Method and apparatus for estimating and controlling the flying height of a read-write head in a hard disk drive App 20070165323 - Kwon; Haesung ; et al.	2007-07-19
Method and apparatus using embedded sensor in a piezoelectric micro-actuator in a hard disk drive App 20070165333 - Kwon; Hae-sung ; et al.	2007-07-19
Method and apparatus for a D33 mode piezoelectric actuator with a bending motion App 20070132343 - Kwon; Haesung ; et al.	2007-06-14
Method and apparatus of micro-actuator control of the flying height of a read/write head in a hard disk drive Grant 7,206,160 - Lee , et al. April 17, 2	2007-04-17
Method and apparatus for a micro-actuator providing three-dimensional positioning to a slider in a hard disk drive Grant 7,130,160 - Kwon , et al. October 31, 2	2006-10-31
Method and apparatus coupling to a slider in a hard disk drive for microactuation App 20060181812 - Kwon; Haesung ; et al.	2006-08-17
Method and apparatus for improved disk damper in a hard disk drive App 20060171064 - Han; Yun-Sik ; et al.	2006-08-03
Method and apparatus for estimating micro-actuator stroke sensitivity in a hard disk drive App 20060114598 - Lee; Dong Jun ; et al.	2006-06-01
Method and apparatus using micro-actuator stroke sensitivity estimates in a hard disk drive App 20060109585 - Lee; Dong Jun ; et al.	2006-05-25
Method and apparatus for a MEMS micro-actuator assembly in a hard disk drive App 20060098346 - Kwon; Haesung ; et al.	2006-05-11
Method and apparatus of dual stage servo control for track following in a hard disk drive App 20060061902 - Sharma; Vinod ; et al.	2006-03-23
Method and apparatus for micro-actuator stroke sensitivity calibration in a hard disk drive Grant 7,009,804 - Sharma , et al. March 7, 2	2006-03-07
Method and apparatus of dual stage servo control for track following in a hard disk drive Grant 7,009,803 - Sharma , et al. March 7, 2	2006-03-07
Head gimbal assemblies for very low flying height heads with optional micro-actuators in a hard disk drive App 20060023338 - Sharma; Vinod ; et al.	2006-02-02
Method And Apparatus For Micro-actuator Stroke Sensitivity Calibration In A Hard Disk Drive App 20060023341 - Sharma; Vinod ; et al.	2006-02-02
Method And Apparatus Of Dual Stage Servo Control For Track Following In A Hard Disk Drive App 20060007589 - Sharma; Vinod ; et al.	2006-01-12
Method and apparatus to detect sub-micron particles in a hard disk drive with optical pickup App 20050248876 - Kwon, Haesung ; et al.	2005-11-10
Method and apparatus of micro-actuator control of the flying height of a read/write head in a hard disk drive App 20050219736 - Lee, Dong Jun ; et al.	2005-10-06
Method and apparatus for a micro-actuator providing three-dimensional positioning to a slider in a hard disk drive App 20050152072 - Kwon, Haesung ; et al.	2005-07-14
Method and apparatus controlling communication in the main flex and bridge flex circuits for multiple micro-actuators in a hard disk drive App 20050105218 - Sharma, Vinod ; et al.	2005-05-19
Method and apparatus coupling at least one piezoelectric device to a slider in a hard disk drive for microactuation App 20050105217 - Kwon, Haesung ; et al.	2005-05-19
Symmetric interconnect design for a flexure arm of a hard disk drive App 20040264056 - Jang, Eunkyu ; et al.	2004-12-30
Antiferro coupled (AFC) media using CR based alloy space layer App 20040197518 - Hong, Sooyoul ; et al.	2004-10-07
Ramp design for reducing read-write head track positioning errors Grant 6,747,843 - Sharma , et al. June 8, 2	2004-06-08
One piece interconnect from channel chip to head slider in a voice coil actuator for a disk drive App 20040085682 - Jang, Eun Kyu ; et al.	2004-05-06
Method and apparatus supporting magnetic performance measurement of merged read-write heads using the write current and read current Grant 6,710,594 - Eunkyu , et al. March 23, 2	2004-03-23
Ramp design for reducing read-write head track positioning errors App 20030184913 - Sharma, Vinod ; et al.	2003-10-02
Method And Apparatus Supporting Magnetic Performance Measurement Of Merged Read-writeheads Using The Write Current And Read Current App 20030178991 - Jang, Eun Kyu ; et al.	2003-09-25
One piece interconnect from channel chip to head slider in a voice coil actuator for a disk drive App 20030179505 - Jang, Eun Kyu ; et al.	2003-09-25
Thermal decay test method of magnetic hard disk App 20030132747 - Hong, Sooyoul ; et al.	2003-07-17
Novel Method To Detect Junction Induced Signal Instability From Gmr/mr Heads App 20020158629 - Wang, Geng ; et al.	2002-10-31
Scheme to avoid electrostatic discharge damage to MR/GMR head gimbal/stack assembly in hard disk applications Grant 6,326,553 - Yim , et al. December 4, 2	2001-12-04
Balance tube for a spindle motor assembly of a hard disk drive Grant 6,178,062 - Yim , et al. January 23, 2	2001-01-23

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.