Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6687435 | Optical fiber grating coder for use in optical code division multiple access, fabricating method and apparatus therefor | Hyun Deok Koo, Sang-Bae Lee | 2004-02-03 |
| 6356685 | Gain control device in semiconductor optical amplifier using optical fiber grating | Dong Hwan Kim, Sang-Bae Lee, Jae Jo, Young Min Jhon, Sang Hyuck Kim | 2002-03-12 |
| 5781009 | Two-coil apparatus for measuring the absolute value of magnetic penetration depth .lambda. of superconductor films | Juyoung Lee, Taek Sang Hahn | 1998-07-14 |