Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7497987 | Refining method and refining apparatus for chromium-contained molten steel | Kosuke Yamashita, Tomoaki Tanaka, Masao Igarashi, Koichiro Yoshino, Makoto Sumi | 2009-03-03 |
| 6830606 | Method for decarbonization refining of chromium-containing molten steel | Tomoaki Tanaka, Masao Igarashi, Koichiro Yoshino | 2004-12-14 |
| 5540753 | Method for refining chromium-containing molten steel by decarburization | Hironori Takano, Hiroaki Morishige, Toshihiro Kosuge | 1996-07-30 |