Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9726815 | Ultra-low-loss optical fiber, and method and apparatus for producing same | Chi Hwan Ouh, Na-Eun Kwack, Eun-You Hong, Jong Gil Park, Ji-hun Yun | 2017-08-08 |
| 7305165 | Optical fiber for metro network | Ju-Chang Han, Yun-Geun Jang | 2007-12-04 |
| 7257300 | Method for reducing hydrogen sensitivity of optical fiber | Yun-Geun Jang, Jin Han Kim, Sung Jin Kim, Jae Ho Lee | 2007-08-14 |
| 7206485 | Photonic crystal fiber preform and photonic crystal fiber manufactured using the same | Jae Ho Lee | 2007-04-17 |
| 7120341 | Optical fiber for long-distance optical communication network | Ju-Chang Han, Yun-Geun Jang | 2006-10-10 |
| 7116409 | Optical fiber for high-speed fiber-drawing process and coating concentricity monitor | Young Seok Kim | 2006-10-03 |
| 7116876 | Optical fiber for metro network | Yun-Geun Jang, Ju-Chang Han | 2006-10-03 |
| 7088897 | Double-coated optical fiber | Young Seok Kim, Jae Ho Lee | 2006-08-08 |
| 7008696 | Optical fiber preform having barrier layers for hydroxyl (OH) radicals | Sung Jin Kim | 2006-03-07 |
| 6945079 | Optical fiber drawing system for non-contact control of polarization mode dispersion of optical fiber | Jin Han Kim | 2005-09-20 |
| 6840063 | Optical fiber preform manufacturing method for shrinkage and closing of deposited tube | Man Seok SEO, Jin-Seong Yang, Mun-Hyun Do | 2005-01-11 |
| 6841004 | Optical fiber coating device having cooler | Man Seok SEO, Kyeong-Sup Kim | 2005-01-11 |
| 6809805 | Residual stress measuring device for optical fiber | Jae Ho Lee | 2004-10-26 |
| 6678433 | Apparatus and method for measuring residual stress and photoelastic effect of optical fiber | Jin Han Kim, Yong-Woo Park, Un-Chul Paek, Dug-Young Kim | 2004-01-13 |
| 6530244 | Optical fiber preform having OH barrier and fabrication method thereof | Man Seok SEO | 2003-03-11 |
| 6487880 | Optical fiber preform manufacturing apparatus | Man Seok SEO, Jin-Seong Yang, Mun-Hyun Do | 2002-12-03 |
| 6408653 | Apparatus and method for manufacturing optical fiber preform by MCVD | Man Seok SEO, Mun-Hyun Do, Jin-Seong Yang | 2002-06-25 |
| 6279354 | Cooler of optical fiber draw tower | Un-Chul Paek, Man Seok SEO, Kyu-Hwan Hwang | 2001-08-28 |
| 6280850 | Optical fiber preform having OH barrier and manufacturing method thereof | Man Seok SEO, Mun-Hyun Do, Jin-Seong Yang | 2001-08-28 |