Issued Patents 2022
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11473178 | Wear-resistant steel having excellent hardness and impact toughness, and method for producing same | Seng-Ho Yu, Yong Woo Kim | 2022-10-18 |
| 11411024 | Vertical type semiconductor devices and methods of manufacturing the same | Sung Yun LEE, Jae-Hoon Jang, Jae-Duk Lee, Joon Hee Lee | 2022-08-09 |
| 11401572 | High-hardness wear-resistant steel and method for manufacturing same | Seng-Ho Yu, Mun-Young Jung | 2022-08-02 |
| 11371125 | Wear-resistant steel having excellent hardness and impact toughness, and method for producing same | Seng-Ho Yu, Yong Woo Kim | 2022-06-28 |
| 11332802 | High-hardness wear-resistant steel and method for manufacturing same | Seng-Ho Yu, Mun-Young Jung | 2022-05-17 |
| 11325667 | System for changing height of hanger mounting plate | Sangduck Han, Jung Jin Kim | 2022-05-10 |