Issued Patents 2002
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 6449237 | 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 | 2002-09-10 |
| 6430139 | Objective lens for high-density optical focusing, and optical pickup using the same | Jang-hoon Yoo, Kun-ho Cho, Seung-tae Jung, Chong-sam Chung, Dong-Ho Shin | 2002-08-06 |
| 6400666 | Optical pickup device | Jang-hoon Yoo, Kun-ho Cho, Yong-hoon Lee, Seok-jung Kim, Seung-tae Jung +1 more | 2002-06-04 |
| 6396638 | Optical pickup device capable of stable tracking | Jang-hoon Yoo, Kun-ho Cho, Seung-tae Jung, Joong-eon Seo, Dong-Ho Shin | 2002-05-28 |
| 6363046 | Optical recording/pickup head compatible with a digital versatile disk (DVD) and a recordable compact disk (CD-R) using a holographic variable aperture | Jang-hoon Yoo | 2002-03-26 |
| 6359850 | Optical pickup having catadioptric objective lens | Chong-sam Chung, Kun-ho Cho, Yong-hoon Lee | 2002-03-19 |
| 6345029 | Optical pickup apparatus and method | Jang-hoon Yoo | 2002-02-05 |
| 6337841 | Compatible optical pickup | Kun-soo Kim, Jong-ryull Kim, Myoung Soo Choi, Hyung-taek Oh, Jong-hwa Yu +3 more | 2002-01-08 |