Issued Patents All Time
Showing 226–235 of 235 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7062774 | Optical pickup for optical disk drive and driving method thereof | — | 2006-06-13 |
| 7038977 | Optical pickup actuator | Young-min Cheong, Dae Hwan Kim | 2006-05-02 |
| 7032231 | Optical pickup device | Young-min Cheong, Kwang Soo Kim, Tetsuo Ando, Kyung-sik Shin, Su-ho Shin +1 more | 2006-04-18 |
| 7026902 | Magnet used with an optical pickup actuator | Dae Hwan Kim | 2006-04-11 |
| 6917480 | Apparatus to drive objective lens of an optical pickup | Young-min Cheong | 2005-07-12 |
| 6857127 | Actuator used with an optical pickup having plate coils and magnets | Kwang Soo Kim, Young-min Cheong | 2005-02-15 |
| 6847499 | Optical head and method of adjusting optical path thereof | Jong-Chul Choi, Jin-Kyung Lee, Chong-sam Chung, Tae Kyung Kim, Kwang Soo Kim | 2005-01-25 |
| 5422557 | Method and apparatus for controlling the speed of a single phase induction motor using frequency variation | Dong Il Kim | 1995-06-06 |
| 5304909 | Resolver excitation signal generating apparatus | Sang Hyun Jin, Sang-Gwon Lim | 1994-04-19 |
| 5272424 | Generating device of phase current instruction value for alternating current servomotor and the generating method thereof | — | 1993-12-21 |