Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674308 | Spouted bed circulating fluidized bed direct reduction system and method | Kimio Sugiyama, Isao Kobiyashi, Kenji Ohiraki, Shintaro Ano | 1997-10-07 |
| 5647887 | Fluidizable bed co-processing fines in a direct reduction system | — | 1997-07-15 |
| 5618032 | Shaft furnace for production of iron carbide | Winston L. Tennies | 1997-04-08 |