Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9856550 | High carbon hot rolled steel sheet having excellent material uniformity and method for manufacturing the same | Young-Roc IM, Byoung-Ho Lee | 2018-01-02 |
| 8685181 | Manufacturing method of carbon steel sheet superior in formability | Kyoo-Young Lee, Gyo-Sung Kim, Han-Chul Shin, Chang-Hoon Lee, Kee-Cheol Park | 2014-04-01 |
| 8440030 | Fine spheroidized steel sheet with excellent heat treatment characteristic and method for manufacturing the same | Chang-Hoon Lee, Jong Sub Lee, Ki-Soo Kim | 2013-05-14 |