Issued Patents All Time
Showing 176–200 of 208 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6847499 | Optical head and method of adjusting optical path thereof | Jong-Chul Choi, Jin-Kyung Lee, Chong-sam Chung, Kwang Soo Kim, Jin Won Lee | 2005-01-25 |
| 6826142 | Method of and apparatus for reproducing data recorded on an optical disc | Young-man Ahn, Jong-bae Kim, Chong-sam Chung | 2004-11-30 |
| 6809999 | Device and method for reducing crosstalk and intersymbol interference | Chong-sam Chung, Young-man Ahn, Hea-jung Seo | 2004-10-26 |
| 6807144 | Optical recording medium recordable on land and groove tracks | Young-man Ahn, Chong-sam Chung, Jin-Kyung Lee, Jong-bae Kim, Du-seop Yoon | 2004-10-19 |
| 6798731 | Optical pickup for and method of correcting aberration due to thickness variations of optical media | Chong-sam Chung, Young-man Ahn, Hea-jung Suh | 2004-09-28 |
| 6791933 | Optical pickup using an optical phase plate | Jang-hoon Yoo, Chul-woo Lee, Chong-sam Chung, Pyong-yong Seong, Kun-ho Cho +3 more | 2004-09-14 |
| 6788473 | Objective lens device for correcting chromatic aberration and optical pickup employing the same | Young-man Ahn, Hea-jung Suh, Chong-sam Chung | 2004-09-07 |
| 6785209 | Optical pickup for improving properties of a reproduction signal | Chong-sam Chung, Young-man Ahn, Hea-jung Suh | 2004-08-31 |
| 6724710 | Spherical abberation compensator and optical pickup using the same | Chong-sam Chung, Young-man Ahn, Hea-jung Suh, Jong-bae Kim | 2004-04-20 |
| 6678233 | Objective lens and optical pickup device using the same | Chong-sam Chung, Young-man Ahn, Hea-jung Suh | 2004-01-13 |
| 6665247 | Land/groove discriminating method and optical recording/reproducing apparatus employing the method | Young-man Ahn, Chong-sam Chung, Hea-jung Suh, Jong-bae Kim | 2003-12-16 |
| 6646976 | Optical pickup apparatus capable of reducing cross talk by adjacent tracks and a method therefor | Chong-sam Chung, Young-man Ahn, Hea-jung Suh, Seung-tae Jung, Chul-woo Lee +2 more | 2003-11-11 |
| 6590851 | Optical pickup for recording/reproducing optical discs of multiple thicknesses | Chong-sam Chung, Young-man Ahn, Hea-jung Suh | 2003-07-08 |
| 6580670 | Optical pickup using a single light spot to generate tracking error signal and reproduction signal | Chong-sam Chung, Young-man Ahn, Hea-jung Suh | 2003-06-17 |
| 6567366 | Optical pickup using laser light of different wavelengths to record and reproduce information to/from a disk | Pyong-yong Seong, Chul-woo Lee | 2003-05-20 |
| 6563780 | Compatible optical pickup for high-density recording/reproduction | Chong-sam Chung, Young-man Ahn, Hea-jung Suh | 2003-05-13 |
| 6511871 | Method of fabricating thin film transistor | Seung Ki Joo | 2003-01-28 |
| 6466529 | Optical pickup assembly and method of detecting tilt | Seok-jung Kim, Yong-hoon Lee, Jang-hoon Yoo | 2002-10-15 |
| 6449229 | Optical pickup assembly with adjustable inclination | Seok-jung Kim, Byung-ryul Ryoo, Yong-Ki Son, Pyong-yong Seong, Yong Jae Lee +1 more | 2002-09-10 |
| 6443997 | Reactive black dye compositions for cellulose fibers | Sea Wha Oh, Myeong Nyeo Kang, Mi Kyoung Song | 2002-09-03 |
| 6400658 | DVD-RAM disk reproduction apparatus for reducing errors during detection of identification data | Chang-jin Yang, Pyong-yong Seong, Seong-sin Joo, Soo-yul Jung, Jung-Eon Seo +2 more | 2002-06-04 |
| 6386346 | Brake valve device for industrial vehicles | Dal Sik Jang, Jeong Hee Hong, Sung-ha Park | 2002-05-14 |
| 6381207 | Optical pickup movable to control beam shift and field angle in an optical disk drive | Byung-ryul Ryoo, Pyong-yong Seong, Seok-jung Kim, Yong-Ki Son, Yong Jae Lee +1 more | 2002-04-30 |
| 6326474 | Reactive black dyes containing acetoxyethyl sulfone moiety | Sea Wha Oh, Myeong Nyeo Kang, Seung Rim Shin, Sung Nyung Yun | 2001-12-04 |
| 6310187 | Reactive red dyes containing monochlorotriazine and acetoxyethyl sulfone groups | Sea Wha Oh, Myeong Nyeo Kang, Seung Rim Shin, Mi Kyoung Song | 2001-10-30 |