Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9657408 | Apparatus for manufacturing ingot | Hyun Goo Kwon, Min Soo Son | 2017-05-23 |
| 9435053 | Apparatus for manufacturing ingot | Hyun Goo Kwon, Min Soo Son | 2016-09-06 |
| 7820308 | Surface-coated hard material for cutting tools or wear-resistant tools | Geun Woo Park, Chang Kyu HWANG, Yong Hee Choi | 2010-10-26 |
| 7691496 | Cutting tool having high toughness and abrasion resistance | Geun Woo Park, Chang Kyu HWANG, Yong Hee Choi, Hyung Keun Joo, Wook Jung Sung | 2010-04-06 |