| 11512153 |
Method of preparing aromatic vinyl compound-vinyl cyanide compound polymer and apparatus for preparing the same |
Jeong A Hwang, Daeyoung Shin, Sungkeun Jang, Eun Jung Joo |
2022-11-29 |
| 11267906 |
Method of preparing aromatic vinyl compound-vinyl cyanide compound polymer and apparatus for preparing the same |
Daeyoung Shin, Jeong A Hwang, Eun Jung Joo, Sungkeun Jang |
2022-03-08 |
| 10487052 |
Synthesis method of N-substituted maleimide using solid acid catalysts |
Joo Young Cheon, Jun Seon Choi, Ji Yeon Kim, Wang Rae Joe, Kyung Soo Kim +1 more |
2019-11-26 |
| 6469258 |
Circuit board for semiconductor package |
Choon Heung Lee, Won Dai Shin, Chang Hoon Ko, Won Sun Shin, Seon Goo Lee +2 more |
2002-10-22 |
| 5854511 |
Semiconductor package including heat sink with layered conductive plate and non-conductive tape bonding to leads |
Won Sun Shin |
1998-12-29 |