Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824362 | Method for operation of flash smelting furnace | Yasuo Ojima, Yoshiaki Mori | 1989-04-25 |
| 4798532 | Flash smelting furnace | Yasuo Ojima, Yoshiaki Mori | 1989-01-17 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4824362 | Method for operation of flash smelting furnace | Yasuo Ojima, Yoshiaki Mori | 1989-04-25 |
| 4798532 | Flash smelting furnace | Yasuo Ojima, Yoshiaki Mori | 1989-01-17 |