Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10137511 | Apparatus for attaching/detaching an insert to/from cutting tool | Dong-Ryong Ji, Young Heum Kim | 2018-11-27 |
| 9808871 | Cutting insert | Byung-sun Choi, Taeg Won Lee, Dong-Ryong Ji, Dong-Bok Park | 2017-11-07 |