Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8844081 | Method of controlling the opening of door of laundry treatment machine | — | 2014-09-30 |
| 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 |
| 6785043 | Dispersion-compensated optical fiber amplifier | Seong-Taek Hwang, Kwan-Woong Song, Sung Tae Kim, Sung-Jin Park | 2004-08-31 |