Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5609458 | Method of charging coal into chamber furnace-type coke oven and apparatus therefor | Kouji Hanaoka, Katsutoshi Igawa, Takashi Matsui, Kenichi Sorimachi | 1997-03-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5609458 | Method of charging coal into chamber furnace-type coke oven and apparatus therefor | Kouji Hanaoka, Katsutoshi Igawa, Takashi Matsui, Kenichi Sorimachi | 1997-03-11 |