Issued Patents All Time
Showing 26–50 of 125 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7391704 | Optical pickup device having chromatic aberration correction lens | Tae Kyung Kim, Young-man Ahn, Hea-jung Suh | 2008-06-24 |
| 7372794 | Compatible optical pickup applying tilt to objective lens in proportion to radial movement of objective lens | Tae Kyung Kim, Young-man Ahn, Byung-in Ma, Jong-bae Kim, Seok-jung Kim | 2008-05-13 |
| 7367677 | High efficiency lighting system, scrolling unit and projection system employing the same | Dae-sik Kim, Yung-jun Park, Kun-ho Cho, Hee-joong Lee, Jong-Chul Choi +1 more | 2008-05-06 |
| 7345981 | Optical pickup | Tae Kyung Kim, Young-man Ahn, Seok-jung Kim, Tae-youn Heor | 2008-03-18 |
| 7324424 | Compatible optical pickup having diffractive device to correct chromatism and divergent lens to increase working distance | Tae Kyung Kim, Young-man Ahn, Hae-jung Suh, Jin-Kyung Lee, Jong-bae Kim | 2008-01-29 |
| 7319643 | 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 | 2008-01-15 |
| 7298675 | Multilayer recording medium and optical pickup for recording and/or reproducing the same | Tao Hong, Tae Kyung Kim | 2007-11-20 |
| 7289417 | Lens correcting wavefront error caused by tilt and optical pickup using same | Tae Kyung Kim, Young-man Ahn, Jong-bae Kim | 2007-10-30 |
| 7266074 | Optical disc apparatus and method of reproducing a wobble signal | Tae Kyung Kim, Young-man Ahn, Jong-bae Kim, Jin-Kyung Lee | 2007-09-04 |
| 7263706 | Disk cartridge and disk player using the same | Hong-kyun Yim, Han-kook Choi, Yong-hoon Lee, Jae-yong Eum, Takizawa Teruyuki +1 more | 2007-08-28 |
| 7242659 | Optical pickup for detecting thickness variation of a recording medium, and/or compensating for spherical aberration caused by thickness variation of a recording medium | Young-man Ahn, Tae Kyung Kim, Hae-jung Suh | 2007-07-10 |
| 7180846 | Phase compensator and compatible optical pickup using the phase compensator | Tae Kyung Kim, Young-man Ahn, Hae-jung Suh, Jin-Kyung Lee, Jong-bae Kim | 2007-02-20 |
| 7178156 | Disk cartridge having identification element and disk drive apparatus which recognizes the identification element | Han-kook Choi, Sun-mo Kim, Yong-hoon Lee, Seok-jung Kim | 2007-02-13 |
| 7170836 | Error signal detection apparatus and method for optical recording/reproducing system | Byung-in Ma, Byoung-ho Choi, In-sik Park, Tae-yong Doh | 2007-01-30 |
| 7170834 | Method and circuit for detecting playback signal which is compensated for time delay | Tatsuhiro Otsuka, Seong-sin Joo, Young-man Ahn, In-sik Park, Hea-jung Suh +2 more | 2007-01-30 |
| 7167424 | 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 | 2007-01-23 |
| 7149176 | High-density optical disc | Yong-hoon Lee, Han-kook Choi, Seok-jung Kim, In-sik Park | 2006-12-12 |
| 7146625 | Disc cartridge and disc drive using the same | Jae-yong Eum, Yong-hoon Lee, Hong-kyun Yim, Han-kook Choi, Takizawa Teruyuki +2 more | 2006-12-05 |
| 7143427 | Disk cartridge having a support portion to support the disk | Han-kook Choi, Hong-kyun Yim, Yong-hoon Lee, Heui-jong Kang, Jae-yong Eum | 2006-11-28 |
| 7131128 | Optical actuator | Seok-jung Kim, Kim Kwang, Hae-jung Suh, Sun-mo Kim, Jin Won Lee | 2006-10-31 |
| 7124423 | Disk cartridge to protect an information area of a disk from being contaminated | Jae-yong Eum, Hong-kyun Yim, Yong-hoon Lee, Han-kook Choi, Takizawa Teruyuki +1 more | 2006-10-17 |
| 7120095 | Apparatus for generating seek direction detecting signal using track error and track cross signals for an optical pickup | Byung-in Ma, In-sik Park, Byoung-ho Choi, Tae-yong Doh | 2006-10-10 |
| 7120109 | Optical pickup with improved collimating lens for use with long and short wavelength laser beams | Tae Kyung Kim, Young-man Ahn, Hea-jung Suh | 2006-10-10 |
| 7110334 | 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 | 2006-09-19 |
| 7095686 | Defocus error signal detection apparatus having phase comparators and a matrix circuit for an optical recording/reproduction system | Byung-in Ma, In-sik Park, Jin-hoon Jeon, Tae-yong Doh, Byoung-ho Choi | 2006-08-22 |