Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4508571 | Mold additives for use in continuous casting | Hakaru Nakato, Toshikazu Sakuraya, Yasuhiro Habu, Masanori Kodama, Takao Koshikawa +2 more | 1985-04-02 |
| 4452634 | Method of stirring molten metal and refractory cylinder for the purpose | Yukio Oguchi, Norio Sumida, Tetsuya Fujii, Toshio Fujimura, Arata Ueda | 1984-06-05 |
| 4436287 | Method for protecting tuyeres for refining a molten iron | Toshikazu Sakuraya, Hideo Nakamura, Nobuo Harada, Tetsuya Fujii | 1984-03-13 |
| 4427444 | Method of refining molten metal with stirring by repeated operation of suction and discharge | Norio Sumida, Yukio Oguchi, Tetsuya Fujii, Toshio Fujimura, Arata Ueda +1 more | 1984-01-24 |
| 4417719 | Top-and-bottom blown converter | Kyoji Nakanishi, Tsutomu Nozaki | 1983-11-29 |
| 4330108 | Method for cooling tuyeres | Kyoji Nakanishi, Kenji Saito, Yoshiei Kato, Tsutomu Nozaki | 1982-05-18 |
| 4263043 | Desulfurizing agent for injection | Osamu Haida, Sumio Yamada, Fumio SUDO, Hiraku Sonoda | 1981-04-21 |