Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12195837 | Cutting tool with hard coating film formed thereon | Jin-han GWON, Je-Hun Park | 2025-01-14 |
| 11376675 | Cutting tool having partially-removed film formed thereon | Je-Hun Park, Kyung-Il Kim, Sung Hyun Kim, Sung Gu Lee, Sun-Yong Ahn | 2022-07-05 |
| 11359272 | Hard film having excellent wear resistance and toughness | Je-Hun Park, Seong Mo Park, Jin-han GWON, Kyoung Il Kim, Beom Sik Kim +1 more | 2022-06-14 |
| 11141801 | Cutting tool having partially-removed film formed thereon | Je-Hun Park, Kyung-Il Kim, Sung Hyun Kim, Sung Gu Lee, Sun-Yong Ahn | 2021-10-12 |
| 11123803 | Cutting insert for hard-to-cut material | Sung Gu Lee, Se Ung OH | 2021-09-21 |
| 10738376 | Hard coating for cutting tool | Je-Hun Park, Beom Sik Kim, Kyoung Il Kim, Dong Youl Lee, Sun-Yong Ahn +1 more | 2020-08-11 |
| 9855608 | Hard coating film for cutting tools | Je-Hun Park, Sung Gu Lee, Seoun-Yong Ahn, Young Heum Kim | 2018-01-02 |
| 9422627 | Hard film for cutting tool | Jae-Hoon Kang, Je-Hun Park, Sung Hyun Kim, Jung Wook Kim, Sung Gu Lee +2 more | 2016-08-23 |
| 9394601 | Hard film for cutting tool | Je-Hun Park, Jae-Hoon Kang, Sung Hyun Kim, Jung Wook Kim, Sung Gu Lee +2 more | 2016-07-19 |
| 9273388 | Hard film for cutting tool | Je-Hun Park, Jae-Hoon Kang, Sung Hyun Kim, Sung Gu Lee, Jung Wook Kim +2 more | 2016-03-01 |
| 8507109 | Multi-layer hard file for indexable insert | Hyung Kwun Kim, Jae-Hoon Kang, Jung Wook Kim, Sun-Yong Ahn | 2013-08-13 |