Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6399552 | Aqueous cleaning solution for removing contaminants surface of circuit substrate cleaning method using the same | Kun-Tack Lee, Yong-Sun Ko, Chang-Lyong Song | 2002-06-04 |
| 6393003 | Semi-soft handoff method that uses multiple common frequency | — | 2002-05-21 |