Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9156090 | Method of manufacturing iron-based powder | Ha Neul Kim, Oh-Joon Kwan, Sun Jong PARK, Hee-Soo Kang | 2015-10-13 |
| 6200394 | High speed tool steel | Woo-Jin Park, Sang-Ho Ahn | 2001-03-13 |
| 5976277 | High speed tool steel, and manufacturing method therefor | Woo-Jin Park, Sang-Ho Ahn | 1999-11-02 |