Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4707185 | Method of treating the slag from a copper converter | Takayoshi Kimura, Yoshiaka Mori | 1987-11-17 |
| 4695317 | Method of treating silicate ore containing gold and silver | Takayoshi Kimura, Yoshiaki Mori | 1987-09-22 |
| 4661152 | Method of lancing for a copper-producing converter | Takayoshi Kimura | 1987-04-28 |
| 4614542 | Method of operating a copper converter | Takayoshi Kimura | 1986-09-30 |