Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8279561 | Balanced motor micro-actuator | Haesung Kwon | 2012-10-02 |
| 8199438 | In-situ dynamic pitch and roll adjustment in hard disk drives | Vinod Sharma | 2012-06-12 |
| 8199568 | Method and apparatus for a disk damper including an enclosing flow chamber wall for a hard disk drive | Haesung Kwon, Jaesuk LEE, Seong-Woo Kang | 2012-06-12 |
| 8194345 | Method and apparatus for dampening and filtering air flow effects in a hard disk drive | Haesung Kwon | 2012-06-05 |
| 8064172 | Method and apparatus coupling to a slider in a hard disk drive for microactuation | Haesung Kwon | 2011-11-22 |
| 7974045 | Apparatus and method for a piezoelectric micro-actuator for a hard disk drive | Hae-sung Kwon | 2011-07-05 |
| 7697236 | 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 | Yun-Sik Han, Young-Hoon Kim, Hae-sung Kwon, Hong-taek Lim | 2010-04-13 |
| 7667932 | Method and apparatus using embedded sensor in a piezoelectric micro-actuator in a hard disk drive | Hae-sung Kwon | 2010-02-23 |
| 7630167 | Method and apparatus to detect sub-micron particles in a hard disk drive with optical pickup | Haesung Kwon, Seong-Woo Kang, Yun-Sik Han | 2009-12-08 |
| 7612967 | Method and apparatus coupling at least one piezoelectric device to a slider in a hard disk drive for microactuation | Haesung Kwon | 2009-11-03 |
| 7583468 | Method and apparatus of dual stage servo control with dual control paths and decoupling feedback for track following in a hard disk drive | Vinod Sharma, Dong-Jun Lee | 2009-09-01 |
| 7576940 | Method and apparatus for estimating micro-actuator stroke sensitivity in a hard disk drive | Dong-Jun Lee, Young-Hoon Kim, Vinod Sharma | 2009-08-18 |
| 7573668 | Method and apparatus for sensing leakage current to estimate and possibly adjust flying height of a read-write head in a hard disk drive | Haesung Kwon, Vinod Sharma | 2009-08-11 |
| 7558026 | Method and apparatus for a single piezoelectric micro-actuator in a head gimbal assembly of a hard disk drive | Haesung Kwon, Dong-Jun Lee | 2009-07-07 |
| 7440223 | Written-in repeatable run-out correction for hard disk drives | Chang-Ik Kang, Young-Hoon Kim | 2008-10-21 |
| 7385780 | Online identification of secondary actuator transfer function via system decoupling in multiple-stage actuator servo systems in disk drives | Young-Hoon Kim, Sang-hoon Chu, Dong-Jun Lee | 2008-06-10 |
| 7336436 | Head gimbal assemblies for very low flying height heads with optional micro-actuators in a hard disk drive | Vinod Sharma, Haesung Kwon | 2008-02-26 |
| 7333288 | Method and apparatus for single written-in Repeatable Run-Out correction function used in multi-stage actuation control of hard disk drive | Young-Hoon Kim, Sang-hoon Chu, Dong-Jun Lee | 2008-02-19 |
| 7282836 | Method and apparatus for a D33 mode piezoelectric actuator with a bending motion | Haesung Kwon | 2007-10-16 |
| 7280305 | Method and apparatus for estimating and controlling the flying height of a read-write head in a hard disk drive | Haesung Kwon, Vinod Sharma | 2007-10-09 |
| 7248443 | Method and apparatus for a MEMS micro-actuator assembly in a hard disk drive | Haesung Kwon | 2007-07-24 |
| 7206160 | Method and apparatus of micro-actuator control of the flying height of a read/write head in a hard disk drive | Dong-Jun Lee, Haesung Kwon | 2007-04-17 |
| 7130160 | Method and apparatus for a micro-actuator providing three-dimensional positioning to a slider in a hard disk drive | Haesung Kwon, Michael Sullivan | 2006-10-31 |
| 7009803 | Method and apparatus of dual stage servo control for track following in a hard disk drive | Vinod Sharma, Dong-Jun Lee | 2006-03-07 |
| 7009804 | Method and apparatus for micro-actuator stroke sensitivity calibration in a hard disk drive | Vinod Sharma | 2006-03-07 |