Issued Patents All Time
Showing 76–100 of 125 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6785209 | Optical pickup for improving properties of a reproduction signal | Tae Kyung Kim, Young-man Ahn, Hea-jung Suh | 2004-08-31 |
| 6754146 | Error signal detection apparatus for an optical recording/reproduction system | Byung-in Ma, In-sik Park, Jin-hoon Jeon, Tae-yong Doh, Byoung-ho Choi | 2004-06-22 |
| 6724710 | Spherical abberation compensator and optical pickup using the same | Young-man Ahn, Tae Kyung Kim, Hea-jung Suh, Jong-bae Kim | 2004-04-20 |
| 6721243 | METHOD FOR DETECTING SERVO ERROR, APPARATUS THEREFOR, DISK WHICH MAINTAINS QUALITY OF SERVO ERROR SIGNAL, METHOD OF CONTROLLING SERVO OF DISK RECORDING/REPRODUCING APPARATUS, METHOD OF DETECTING TRACKING ERROR, AND METHOD OF DETECTING TILT ERROR | Seong-sin Joo, In-sik Park, Byung-in Ma, Jang-hoon Yoo, Jung-wan Ko +2 more | 2004-04-13 |
| 6687201 | Apparatus for generating seek direction detection signal | Byung-in Ma, In-sik Park, Byoung-ho Choi, Tae-yong Doh, Jin-hoon Jeon | 2004-02-03 |
| 6678233 | Objective lens and optical pickup device using the same | Tae Kyung Kim, 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, Tae Kyung Kim, 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 | Young-man Ahn, Tae Kyung Kim, Hea-jung Suh, Seung-tae Jung, Chul-woo Lee +2 more | 2003-11-11 |
| 6639889 | Recording/reproducing apparatus including an optical pickup having an objective lens compatible with a plurality of optical disk formats | Jang-hoon Yoo, Chul-woo Lee, Kun-ho Cho | 2003-10-28 |
| 6611482 | Error signal detecting apparatus for optical recording/reproducing apparatus | Byung-in Ma, In-sik Park, Byoung-ho Choi, Tae-yong Doh | 2003-08-26 |
| 6590851 | Optical pickup for recording/reproducing optical discs of multiple thicknesses | Tae Kyung Kim, Young-man Ahn, Hea-jung Suh | 2003-07-08 |
| 6590853 | Swing arm driving type optical recording/reproducing apparatus | Yong-hoon Lee, Chul-woo Lee, Kun-ho Cho | 2003-07-08 |
| 6584049 | Device for reducing cross talk in signal detecting apparatus used in an optical pickup device | Byung-in Ma, In-sik Park, Joong-eon Seo | 2003-06-24 |
| 6580670 | Optical pickup using a single light spot to generate tracking error signal and reproduction signal | Tae Kyung Kim, Young-man Ahn, Hea-jung Suh | 2003-06-17 |
| 6563780 | Compatible optical pickup for high-density recording/reproduction | Tae Kyung Kim, Young-man Ahn, Hea-jung Suh | 2003-05-13 |
| 6556521 | METHOD FOR DETECTING SERVO ERROR, APPARATUS THEREFOR, DISK WHICH MAINTAINS QUALITY OF SERVO ERROR SIGNAL, METHOD OF CONTROLLING SERVO OF DISK RECORDING/REPRODUCING APPARATUS, METHOD OF DETECTING TRACKING ERROR, AND METHOD OF DETECTING TILT ERROR | Seong-sin Joo, In-sik Park, Byung-in Ma, Jang-hoon Yoo, Jung-wan Ko +2 more | 2003-04-29 |
| 6556520 | METHOD FOR DETECTING SERVO ERROR, APPARATUS THEREFOR, DISK WHICH MAINTAINS QUALITY OF SERVO ERROR SIGNAL, METHOD OF CONTROLLING SERVO OF DISK RECORDING/REPRODUCING APPARATUS, METHOD OF DETECTING TRACKING ERROR, AND METHOD OF DETECTING TILT ERROR | Seong-sin Joo, In-sik Park, Byung-in Ma, Jang-hoon Yoo, Jung-wan Ko +2 more | 2003-04-29 |
| 6538975 | Optical pickup | Hea-jung Suh, Young-man Ahn | 2003-03-25 |
| 6507544 | Error signal detection apparatus and reproduction signal detection apparatus for optical recording/reproducing system and method therefor | Byung-in Ma, Byung Ho Choi, In-sik Park, Tae-yong Doh, Joong-eon Seo | 2003-01-14 |
| 6469979 | METHOD FOR DETECTING SERVO ERROR, APPARATUS THEREFOR, DISK WHICH MAINTAINS QUALITY OF SERVO ERROR SIGNAL, METHOD OF CONTROLLING SERVO OF DISK RECORDING/REPRODUCING APPARATUS, METHOD OF DETECTING TRACKING ERROR, AND METHOD OF DETECTING TILT ERROR | Seong-sin Joo, In-sik Park, Byung-in Ma, Jang-hoon Yoo, Jung-wan Ko +2 more | 2002-10-22 |
| 6442124 | Compatible optical pick-up apparatus for recording and reproducing information from recording media having different formats | Yong-hoon Lee, In-shik Park | 2002-08-27 |
| 6430139 | Objective lens for high-density optical focusing, and optical pickup using the same | Jang-hoon Yoo, Kun-ho Cho, Seung-tae Jung, Chul-woo Lee, Dong-Ho Shin | 2002-08-06 |
| 6359850 | Optical pickup having catadioptric objective lens | Chul-woo Lee, Kun-ho Cho, Yong-hoon Lee | 2002-03-19 |
| 6314067 | Optical disk having pattern for tilt detection | Chul-woo Lee, In-sik Park | 2001-11-06 |
| 6310841 | Optical pickup for narrow track optical discs | Kun-ho Cho | 2001-10-30 |