Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12292315 | Brillouin distributed optical fiber sensor capable of measuring long measuring distance | Gukbeen Ryu, Wookjin Jeong, Wonsuk LEE, In Soo Kim, Jongbum Kim +1 more | 2025-05-06 |
| 11105659 | Dual Brillouin distributed optical fiber sensor and sensing method using Brillouin scattering which allow high-speed event detection and precise measurement | Kwan Il Lee, Gukbeen Ryu, In Soo Kim, Wonsuk LEE | 2021-08-31 |
| 9718107 | Belt replacement device | Sung Koo Kim, Jong Gu Do, Suck Y. Lee | 2017-08-01 |
| 9477045 | Optical element using multicore optical fiber grating and method for processing optical signal using the same | Kwan Il Lee, Kyung-Shik Lee | 2016-10-25 |
| 9071357 | Data communications system including an optical fiber data link disposed between serial bidirectional electrical data busses | Feng Shi | 2015-06-30 |
| 8739323 | Air injection bathtub | — | 2014-06-03 |
| 8339370 | Display device and method of sensing input point using magnetic fluid | Sang Jin Yun, Geun-Sik Lim | 2012-12-25 |
| 8135278 | Bidirectional wavelength-division-multiplexed passive optical network | Kwan Il Lee | 2012-03-13 |
| 7700031 | Mold for injection molding and molding method using the same | Duck Su Choi, Im Bong Park, Rae Hak Jeong | 2010-04-20 |
| 7627211 | Tunable dispersion and dispersion slope compensator in optical telecommunication system | Jun-Kye Bae, Young Jun Lee, Sang Hyuck Kim | 2009-12-01 |
| 7597550 | Molding apparatus having ejector sleeve and ejector pin | Sang Hun Lee, Jong Won Lee | 2009-10-06 |
| 7495750 | Monitoring device for rotating body | Yoha Hwang, Jong Min Lee | 2009-02-24 |
| 7449498 | Composite materials for bone defect filling and bone replacement | Kyeong-Jun Park, Doug Youn Lee, Jeong-Jong Park, Ji Ho Park, Kyoung-Nam Kim +1 more | 2008-11-11 |
| 7251382 | Functional tunable multichannel filter | Young-Geun Han, Sang Hyuck Kim | 2007-07-31 |
| 7171079 | Tunable dispersion compensator for an optical transmission system | Jun-Kye Bae, Jun Hee Kim, Young-Geun Han, Sang Hyuck Kim | 2007-01-30 |
| 7003199 | Tunable dispersion compensator for optical communication system | Sun-Min Choi, Jun-Kye Bae, Jun Hee Kim, Young-Geun Han, Sang Hyuck Kim | 2006-02-21 |
| 6687435 | Optical fiber grating coder for use in optical code division multiple access, fabricating method and apparatus therefor | Hyun Deok Koo, Sang Sam Choi | 2004-02-03 |
| 6356685 | Gain control device in semiconductor optical amplifier using optical fiber grating | Dong Hwan Kim, Jae Jo, Sang Sam Choi, Young Min Jhon, Sang Hyuck Kim | 2002-03-12 |