Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7177243 | Optical disc track access apparatus and method for optical disc reproducer | Cheol Jin, Jeong Chae Youn | 2007-02-13 |
| 6791915 | Optical disc track access apparatus and method for optical disc reproducer | Cheol Jin, Jeong Chae Youn | 2004-09-14 |
| 5968228 | Process for preparing cobalt metals using nitrogen reductant | Son-Ki Ihm, Do Woan Kim | 1999-10-19 |
| 4839329 | Process for manufacturing a titania supported palladium catalyst | Sun K. Ihm | 1989-06-13 |