Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7962180 | Mobile communication terminal and method for processing event that user missed | Chan Woo Park, Do-Hwan Choi, Jong Hyun An, Myeong Lo Lee, Ha Ran Jung +1 more | 2011-06-14 |
| 7305165 | Optical fiber for metro network | Ju-Chang Han, Sung-Koog Oh | 2007-12-04 |
| 7257300 | Method for reducing hydrogen sensitivity of optical fiber | Jin Han Kim, Sung-Koog Oh, Sung Jin Kim, Jae Ho Lee | 2007-08-14 |
| 7120341 | Optical fiber for long-distance optical communication network | Sung-Koog Oh, Ju-Chang Han | 2006-10-10 |
| 7116876 | Optical fiber for metro network | Sung-Koog Oh, Ju-Chang Han | 2006-10-03 |
| 7003205 | Wide-band dispersion controlled optical fiber | Jeong-Sik Cho, Mun-Hyun Do, Jin-Seong Yang, Sang-Ho Cha, Ju-Chang Han +1 more | 2006-02-21 |
| 6999667 | Dispersion-controlled optical fiber | Mun-Hyun Do, Sung-Wook Choi, Ju-Chang Han, Jeong-Sik Cho, Jin-Seong Yang | 2006-02-14 |
| 6873775 | Graded-index optical fiber | Sung-Wook Choi | 2005-03-29 |