Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8980082 | Method of simultaneously removing sulfur and mercury from hydrocarbon material using catalyst by means of hydrotreating reaction | Do Kyoung Kim, Do Woan Kim, Sang Il Lee, Seung Hoon Oh, Han Seung Pan +3 more | 2015-03-17 |
| 8098422 | Wavelength conversion device package | Hyung Man Lee, Han Young Lee, Woo Seok Yang | 2012-01-17 |
| 7864409 | Fabrication method for quasi-phase-matched waveguides | Woo Seok Yang, Han Young Lee, Hyung Man Lee, Soon Sup Park | 2011-01-04 |
| 7440642 | Integrated optical modulator and method for manufacturing the same | Woo Seok Yang, Han Young Lee, Hyung Man Lee | 2008-10-21 |
| 7167607 | Symmetric optical modulator with low driving voltage | Woo Seok Yang, Han Young Lee | 2007-01-23 |