Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4653065 | Preheating mechanism for use with duplex electric-arc furnace system | Masahiko Seki, Hiroshi Nakatani, Seiyu Takao, Isao Arimitsu, Hisanori Fujimori | 1987-03-24 |
| 4565479 | Raw materials charging device for preheating furnace | Masahiko Seki, Hiroshi Nakatani, Shozo Minami | 1986-01-21 |