Issued Patents All Time
Showing 126–150 of 222 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6899937 | Optical disc | Yong-hoon Lee, Chong-sam Chung, Kun-ho Cho | 2005-05-31 |
| 6888555 | Color synchronization method and color laser printer | Bu-hyun Sung, Soon-kyo Hong, Young-woo Huh | 2005-05-03 |
| 6885625 | Near-field optical storage medium and optical data storage system therefor | Kun-ho Cho, Dong-Ho Shin, Joong-eon Seo, Seung-tae Jung, Byeong-Ho Park +3 more | 2005-04-26 |
| 6882614 | Recording/reproducing apparatus having an optical pickup device to read from and record information to disks of different thicknesses | Jang-hoon Yoo | 2005-04-19 |
| 6816449 | Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens | Jang-hoon Yoo | 2004-11-09 |
| 6801492 | Solid immersion mirror type objective lens and optical pickup device adopting the same | Ki Won Lee, Seung-tae Jung, Dae-sik Kim | 2004-10-05 |
| 6798732 | Near-field optical storage medium and optical data storage system therefor | Kun-ho Cho, Dong-Ho Shin, Joong-eon Seo, Seung-tae Jung, Byeong-Ho Park +3 more | 2004-09-28 |
| 6797739 | Triazene-based compound comprising functionalized alkylthio groups, and photopolymerization initiator | Sung Hyun Kim, Jin-Seuk Kim, Jae Hwan LEE, Dong Chang Choi, Hyuk-Jin Cha | 2004-09-28 |
| 6791933 | Optical pickup using an optical phase plate | Jang-hoon Yoo, Chong-sam Chung, Pyong-yong Seong, Kun-ho Cho, Hyun-seob Choi +3 more | 2004-09-14 |
| 6788636 | Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens | Jang-hoon Yoo | 2004-09-07 |
| 6765857 | Optical recording and pickup head for digital versatile disc compatible with read-writable compact disc by adopting flat plate lens having staircase type diffraction grating structure | Jang-hoon Yoo, Kun-ho Cho, Pyong-yong Seong | 2004-07-20 |
| 6657942 | Optical recording and reproducing apparatus having floating swing arm and optical disk for use therewith | Joong-eon Seo, Seung-tae Jung, Myong-do Ro, Kun-ho Cho, Dong-seob Jang +2 more | 2003-12-02 |
| 6650469 | Objective lens formed of a single lens and having high numerical aperture and an optical pickup apparatus adopting the same | Dae-sik Kim, Seung-tae Jung | 2003-11-18 |
| 6646976 | Optical pickup apparatus capable of reducing cross talk by adjacent tracks and a method therefor | Chong-sam Chung, Young-man Ahn, Tae Kyung Kim, Hea-jung Suh, Seung-tae Jung +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, Chong-sam Chung, Kun-ho Cho | 2003-10-28 |
| 6619801 | Projection type image display apparatus realizing three-dimensional image | Kun-ho Cho, Dae-sik Kim, Seung-tae Jung | 2003-09-16 |
| 6621787 | Optical storage medium having protective layer thicker than wavelength of useable light source | Kun-ho Cho, Dong-Ho Shin, Joong-eon Seo, Seung-tae Jung, Byeong-Ho Park +3 more | 2003-09-16 |
| 6590853 | Swing arm driving type optical recording/reproducing apparatus | Yong-hoon Lee, Chong-sam Chung, Kun-ho Cho | 2003-07-08 |
| 6583495 | Variable capacitor and memory device employing the same | Seung-tae Jung, Hee Wan Lee | 2003-06-24 |
| 6567366 | Optical pickup using laser light of different wavelengths to record and reproduce information to/from a disk | Tae Kyung Kim, Pyong-yong Seong | 2003-05-20 |
| 6547398 | Projection-type image display apparatus and method | Kun-ho Cho, Seung-tae Jung, Jang-hoon Yoo | 2003-04-15 |
| 6534736 | Key switch of keyboard unit | Sung-Jin Lee, Soon-kyo Hong, Young-woo Huh, Woo-Jong Lee, Woo-jong Cho | 2003-03-18 |
| 6510126 | Optical disc having textured structure, and a method of manufacturing the optical disc | Byung-Il Cho, Kun-ho Cho, Seung-tae Jung, Cheol-Seung Yeon | 2003-01-21 |
| 6487422 | Wireless telephone having remote controller function | — | 2002-11-26 |
| 6480222 | Semiconductor laser and flying optical pickup for recording/reproducing using the same | Jang-hoon Yoo, Pyong-yong Seong | 2002-11-12 |