Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5027880 | Tundish changing apparatus in a continuous casting installation | Kiyoshi Morii, Shuzo Kumura, Yoshio Inagaki, Tatsuo Tagawa, Ichizo Taguchi +1 more | 1991-07-02 |
| 4371392 | Process for refining a molten metal | Kazumasa Hasegawa, Minao Ito, Saburo Sugiura, Kiyoichi Yamano | 1983-02-01 |
| 4308415 | Process for refining a molten metal and an apparatus therefor | Kazumasa Hasegawa, Minao Ito, Saburo Sugiura, Kiyoichi Yamano | 1981-12-29 |