Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7858019 | Apparatus for manufacturing molten irons by hot compacting fine direct reduced irons | Hoo-Geun Lee, Tae-In Kang, Deuk-Chae Kim, Chang-Oh Kang, Kwang Hee Lee +2 more | 2010-12-28 |
| 7776136 | Apparatus for manufacturing molten irons by hot compacting fine direct reduced irons and calcined additives and method using the same | Hoo-Geun Lee, Tae-In Kang, Chang-Oh Kang, Kwang Hee Lee, Sang Hoon Joo +2 more | 2010-08-17 |
| 7622071 | Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons using the same | Kwang Hee Lee, Min Chul Park, Sang Hoon Joo, Deuk-Chae Kim, Soo-Young Bang +5 more | 2009-11-24 |
| 7588717 | Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons using the same | Kwang Hee Lee, Il-Hyun Cho, Do-Seung Kim, Hyun-Uck Sung, Deuk-Chae Kim +4 more | 2009-09-15 |