Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4560406 | Process for refining of chromium-containing molten steel | Haruki Ariyoshi, Ryoichi Hidaka | 1985-12-24 |
| 4438803 | Continuous casting of steel slabs and blooms free from surface defects | Hidemaro Takeuchi, Shogo Matsumura, Ryoichi Hidaka, Tsuyoshi Saeki | 1984-03-27 |