Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9298612 | Semiconductor memory device and computer system including the same | Hyun-Sung Shin, Sang-Joon Hwang, Seung-Man Shin, In-Su Choi | 2016-03-29 |
| 7441721 | Device for preventing welding wire from tangling | Hyo-Young Bae, Yo-Seong Lee, Sae-Youl Ryu, Sang Ho Choi, Myung-Sang Yun +2 more | 2008-10-28 |