Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10900106 | Ferritic steel | Dong Hwi Kim | 2021-01-26 |
| 10689736 | Ultra-high-strength spring steel for valve spring | Sung Chul Cha, Sang Min Song, Jae-Hyeok Shim | 2020-06-23 |
| 9982706 | Method of manufacturing light rotor shaft for eco-friendly vehicles | Hye Min Jo | 2018-05-29 |
| 9127342 | High-strength transmission gear and method of manufacturing the same | Jae Hong Park | 2015-09-08 |
| 8608870 | Carburization heat treatment method and method of use | Chang Won Kang | 2013-12-17 |
| 8137482 | Carburization heat treatment method and method of use | Chang Won Kang | 2012-03-20 |