Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4657585 | Method for separating cobalt, nickel and the like from alloys | Akira Yazawa, Kimio Itagaki, Kenji Matsuda, Kazuo Kanazawa, Mitsuo Hayashi +1 more | 1987-04-14 |
| 4224056 | Direct reduction process for iron ores with fluidized bed system | Fumio Tomizawa, Makoto Shimizu, Yukinaga Katahashi | 1980-09-23 |