Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6888671 | Optical amplifier device and bidirectional wavelength division multiplexing optical communication system using the same | Seong-Taek Hwang, Seong-Ha Kim, Gyu-Woong Lee | 2005-05-03 |
| 6867912 | Wide-band erbium-doped fiber amplifier and wavelength division multiplexing optical transmission system | Seong-Taek Hwang | 2005-03-15 |