Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11535957 | Method for producing polyacrylonitrile-based fiber and polyacrylonitrile-based copolymer used therein | Jeong Kyu Lee, Chang Hun Kim, In Young Song, Jong Soo DO, Sung Joon Oh +1 more | 2022-12-27 |
| 11427659 | Method of preparing acrylonitrile-based polymer for producing carbon fiber | Chang Hun Kim, Hyun Min Kim, Joon-Hee Cho | 2022-08-30 |
| 11367666 | Clip, lead frame, and substrate used in semiconductor package having engraved pattern formed thereon and the semiconductor package comprising the same | Yun Hwa CHOI, Soon Seong Choi | 2022-06-21 |
| 11286580 | Method for producing acrylonitrile-based fiber | Sang Jin Kim, Chang Hong Bak, Hye Jin Han, Ki Yeon Jo, Joon-Hee Cho | 2022-03-29 |