| 8650234 |
Method and system for generating a random number in disk drive |
Sung-Youn Cho, Seung-youl Jeong, Hak-Yeol Sohn |
2014-02-11 |
| 8139307 |
Hard disk drive apparatus, method of controlling flying height of magnetic head thereof, and recording medium to contain computer program therefor |
Young Shin Kim |
2012-03-20 |
| 7961420 |
Disk drive apparatus and method of adaptively controlling flying height of magnetic head therein |
— |
2011-06-14 |
| 7827322 |
Method and apparatus for protecting data during storage/retrieval |
Seung-youl Jeong, Hak-Yeol Sohn, Sung-Youn Cho |
2010-11-02 |
| 7620813 |
Method to authenticate a data processing apparatus having a recording device and apparatuses therefor |
Seung-youl Jeong, Hak-Yeol Sohn, Sung-yon Cho |
2009-11-17 |
| 7490357 |
Data protection in data storage system |
Sung-Youn Cho, Seung-youl Jeong, Hak-Yeol Sohn |
2009-02-10 |
| 7469303 |
Method and apparatus for protecting data during storage/retrieval |
Seung-youl Jeong, Hak-Yeol Sohn, Sung-Youn Cho |
2008-12-23 |
| 7463441 |
Automatic data update method of data storage system and disk drive using the same |
Sung-Youn Cho, Ho-joong Choi, Seung-youl Jeong |
2008-12-09 |
| 7337263 |
Method of varying recording density of data storage medium and disk drive using the method |
Sung-Youn Cho, Seung-youl Jeong |
2008-02-26 |
