Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5244639 | Method and apparatus for preparing high-purity metallic silicon | Fukuo Aratani | 1993-09-14 |
| 4248625 | Method of operating a blast furnace | Sakae Tamura, Kyoji Okabe, Seiji Taguchi, Tamotsu Nagai, Mitsuo Saino +1 more | 1981-02-03 |