Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9010173 | Pollution measurement apparatus for easily exchanging sensor | Ik Jae Lee, Han-Soo Kim, Ji-Sun Kim, Sun Tae Kim | 2015-04-21 |
| 8009383 | Seek control method to avoid flex cable resonance during settle in hard disk drive | Tao Zhang | 2011-08-30 |
| 7813076 | Method for estimating position error gain for hard disk drives | Sang-hoon Chu | 2010-10-12 |
| 7804660 | Method for unloading head without calibration in hard disk drives | Jian Gong | 2010-09-28 |
| 7760455 | Method and apparatus improving prevention of off-track writing in a hard disk drive | Bong Jin Lee | 2010-07-20 |
| 7729081 | On-line bias estimator in hard disk drives | — | 2010-06-01 |
| 7605994 | Multiple sinusoidal seek servo system for reducing seek acoustics and seek time in hard disk drives | Young-Hoon Kim, Sang-hoon Chu | 2009-10-20 |
| 7440223 | Written-in repeatable run-out correction for hard disk drives | Young-Hoon Kim, Hyung Jai Lee | 2008-10-21 |
| 7411761 | Seek adaptation system in hard disk drives | — | 2008-08-12 |
| 7400468 | Vibration detector for hard disk drives | Yunfeng Li, Bong Jin Lee | 2008-07-15 |
| 7394614 | Control method to reduce settle TMR in hard disk drives | — | 2008-07-01 |
| 7379262 | Higher-order state estimator for low TMR in hard disk drives | Yungfeng Li | 2008-05-27 |
| 7349173 | Self-tuning settle controller in hard disk drives | — | 2008-03-25 |
| 7330332 | Method and apparatus for high-speed compensation of RRO error in hard disk drive | Sang-eun Baek | 2008-02-12 |
| 7315433 | Non-repeatable run out compensating apparatus and method and disc drive using the same | Sang-eun Baek, Jun-seok Shim | 2008-01-01 |
| 7307810 | Method of compensating for track address discontinuity across servo track writing boundary in hard disk drives | — | 2007-12-11 |
| 7304817 | Jerk controlled seek system | Bong Jin Lee | 2007-12-04 |
| 7292403 | Low frequency disturbance compensation control device and disk drive using the same | Sang-eun Baek, Sang-min Suh, Jun-seok Shim | 2007-11-06 |
| 7248429 | Adaptive settling control method and apparatus in track seek mode of disc drive | Sang-eun Baek, Jun-seok Shim | 2007-07-24 |
| 7203029 | Method and apparatus for controlling track seek servo of disk drive | Seung Chul Park | 2007-04-10 |
| 7203028 | Settling servo control method and apparatus for hard disc drive and method and apparatus for estimating acceleration constant of voice coil motor actuator suitable for the settling servo control method and apparatus | Da-woon Chung, Chan-hyuck Boo | 2007-04-10 |
| 7085096 | Method of generating current trajectory for seek control of hard disc drive and seek control system using the same | Sang-eun Baek | 2006-08-01 |
| 7016142 | Apparatus and method for removing mechanical resonance using adaptive notch filter | Kwang-jo Jung | 2006-03-21 |
| 6441988 | Method and apparatus for reducing acoustic noise in a hard disk drive | Kang Seok Lee | 2002-08-27 |
| 6396654 | Embedded servo writing method and apparatus for hard disk drive | Woo-cheol Jeong | 2002-05-28 |