Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5874200 | Method for forming a pattern preventing water mark formation | Hyung-Joo Ra | 1999-02-23 |
| 5677209 | Method for fabricating a vertical bipolar transistor | Dae-Heon Shon | 1997-10-14 |