Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7003205 | Wide-band dispersion controlled optical fiber | Jeong-Sik Cho, Mun-Hyun Do, Sang-Ho Cha, Ju-Chang Han, Yun-Geun Jang +1 more | 2006-02-21 |
| 6999667 | Dispersion-controlled optical fiber | Yun-Geun Jang, Mun-Hyun Do, Sung-Wook Choi, Ju-Chang Han, Jeong-Sik Cho | 2006-02-14 |
| 6987923 | Amplifying optical fiber and method for fabricating the same | Se-Ho Park, Mun-Hyun Do | 2006-01-17 |
| 6954573 | Wide band dispersion-controlled fiber | Jeong-Sik Cho, Mun-Hyun Do, Sung-Wook Choi | 2005-10-11 |
| 6840063 | Optical fiber preform manufacturing method for shrinkage and closing of deposited tube | Sung-Koog Oh, Man Seok SEO, Mun-Hyun Do | 2005-01-11 |
| 6729163 | Apparatus for over-cladding large diameter optical fiber pre-form using the same | Mun-Hyun Do | 2004-05-04 |
| 6487880 | Optical fiber preform manufacturing apparatus | Sung-Koog Oh, Man Seok SEO, Mun-Hyun Do | 2002-12-03 |
| 6408653 | Apparatus and method for manufacturing optical fiber preform by MCVD | Sung-Koog Oh, Man Seok SEO, Mun-Hyun Do | 2002-06-25 |
| 6338259 | Cooling apparatus used in fabrication of optical fiber preform | — | 2002-01-15 |
| 6280850 | Optical fiber preform having OH barrier and manufacturing method thereof | Sung-Koog Oh, Man Seok SEO, Mun-Hyun Do | 2001-08-28 |
| 6125659 | Apparatus for manufacturing erbium-doped optical fibers | — | 2000-10-03 |