Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7722983 | Lithium ion secondary battery | Yongtae Kim, Seok-Gyun Chang, YooEup Hyung, Jungseog Kim, Sangbong Nam | 2010-05-25 |
| 7709141 | Lithium ion secondary battery | Yongtae Kim, Seok-Gyun Chang, YooEup Hyung, Jungseog Kim, Sangbong Nam | 2010-05-04 |