Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11840752 | Low thermal expansion alloy having excellent low temperature stability and method for producing same | Takuo Handa, Shimin Ryu, Nobuyuki Oyama | 2023-12-12 |
| 5769923 | Decarburization refining process for chromium-containing molten metal and associated top blowing lance | Hiroshi Nishikawa, Tomomichi Terabatake, Akihito Hirota, Naoki Kikuchi | 1998-06-23 |
| 5743938 | Method of decarburizing refining molten steel containing Cr | Hiroshi Nishikawa, Naoki Kikuchi | 1998-04-28 |
| 5728348 | Ladle cover for vacuum refining process | Nozomu Tamura, Sumio Yamada, Toshio Kanatani | 1998-03-17 |
| 5221326 | Method of producing ultra-low-carbon steel | Koji Yamaguchi, Yasuo Kishimoto, Toshikazu Sakuraya, Kazuhisa Hamagami, Hiroshi Nishikawa | 1993-06-22 |
| 5152831 | Method of producing ultra-low-carbon steel | Koji Yamaguchi, Yasuo Kishimoto, Toshikazu Sakuraya, Kazuhisa Hamagami, Hiroshi Nishikawa | 1992-10-06 |
| 4955126 | Process for fusing steel slabs in longitudinal direction thereof | Masaru Shibata, Masayuki Onishi, Hitoshi Ohsugi, Shigeru Ogura, Hideo Kuguminato +1 more | 1990-09-11 |