Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5306364 | High toughness tungsten based heavy alloy containing La and Ca. manufacturing thereof | Seong Hyeon Hong, Suk-Joong L. Kang, Duk Yong Yoon | 1994-04-26 |
| 5294269 | Repeated sintering of tungsten based heavy alloys for improved impact toughness | Young-Min Lee, Kyung Jin Park, Kil S. Churn, Heung Sub Song, Joon-Woong Noh +3 more | 1994-03-15 |