Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9468980 | Contoured PCD and PCBN segments for cutting tools containing such segments | H. Sam Cho, Kim Young Il, Han Kyung Ryul, Song Gi Jeon | 2016-10-18 |
| 8052765 | Contoured PCD and PCBN for twist drill tips and end mills and methods of forming the same | H. Sam Cho, Kim yong Il, Han Kyung Ryul, Song Ki Jeon | 2011-11-08 |