Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5882377 | Process for smelting reduction of chromium ore | Kimiharu Aida, Shuji Takeuchi, Nagayasu Bessho, Yasuo Kishimoto, Hiroshi Nishikawa +1 more | 1999-03-16 |
| 5769923 | Decarburization refining process for chromium-containing molten metal and associated top blowing lance | Hiroshi Nishikawa, Masaru Washio, Akihito Hirota, Naoki Kikuchi | 1998-06-23 |