Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6952308 | Multi-stage bidirectional optical amplifier | Chang Hee Lee, Tae Won Oh, Shin Jeong Hun, Cho Yun Hee | 2005-10-04 |
| 6894830 | Bi-directional optical-amplifier module | Chang Hee Lee, Yun-Je Oh, Seong-Taek Hwang, Jeong Hun Shin, Yunhee CHO | 2005-05-17 |