Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6482547 | Negative active material for lithium secondary battery and lithium secondary battery using the same | Sang Young Yoon, Jae-Yul Ryu, Kyou-Yoon Sheem, Wan-Uk Choi, Sang Jin Kim | 2002-11-19 |
| 6399250 | Negative material for rechargeable lithium battery and method of preparing the same | Kyou-Yoon Sheem, Sang Young Yoon, Wan-Uk Choi | 2002-06-04 |