Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597838 | Grating-assisted co-directional vertical coupler optical filter having well-suppressed sidelobe characteristics and method of fabricating the same | Chan-Yong Park, Seung Won Lee, Dug Bong Kim, Hong-Man Kim | 2003-07-22 |
| 6593162 | Method of manufacturing semiconductor optical device | Kyung Hyun Park, Yong Soon Baek, Sung Bock Kim | 2003-07-15 |
| 5661077 | Method for fabricating an optical integrated circuit | Ju-Heon Ahn, Jeong Soo Kim | 1997-08-26 |
| 5581108 | Optical Switching device | Hong-Man Kim, Ki Sung Park, Chong-Dae Park | 1996-12-03 |
| 5242839 | Method of manufacturing an integrated photoelectric receiving device | Yong-Tak Lee | 1993-09-07 |