Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11644768 | Storing information in a toner refill kit during toner refill | Hong-Chul Choi, Yun-Su Kim, Jinwoo Noh | 2023-05-09 |
| 11506991 | Storing information in toner refill kit during toner refill | Hong-Chul Choi, Yun-Su Kim, Jinwoo Noh | 2022-11-22 |
| 5914094 | Process for preparing cathode active material by a sol-gel method | Yang Sun | 1999-06-22 |