Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5221326 | Method of producing ultra-low-carbon steel | Koji Yamaguchi, Yasuo Kishimoto, Toshikazu Sakuraya, Masaru Washio, Hiroshi Nishikawa | 1993-06-22 |
| 5152831 | Method of producing ultra-low-carbon steel | Koji Yamaguchi, Yasuo Kishimoto, Toshikazu Sakuraya, Masaru Washio, Hiroshi Nishikawa | 1992-10-06 |
| 5028033 | Process for detecting outflow of slag | Nobuhiko Morioka, Shigeru Ogura | 1991-07-02 |
| 4994108 | Process for producing high cleanness extra low carbon steel | Masayuki Onishi | 1991-02-19 |