Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11194653 | Semiconductor memory device, and memory system having the same | Sanguhn Cha, Hyungi Kim, Hoon Shin | 2021-12-07 |
| 11170868 | Semiconductor memory devices and memory systems | Sanguhn Cha, Sunghye Cho, Kijun Lee, Myungkyu Lee, Youngcheon Kwon +1 more | 2021-11-09 |