Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4653065 | Preheating mechanism for use with duplex electric-arc furnace system | Masahiko Seki, Hiroshi Nakatani, Katsuya Kogumasaka, Seiyu Takao, Hisanori Fujimori | 1987-03-24 |