Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4478574 | Scrap preheating system for an electric furnace | Keio Toyoda, Masahiro Sarai, Kiyoshi Takai | 1984-10-23 |
| 4350326 | Apparatus for heat recovery from molten slag | Hiroo Fujii, Kiyoaki Tanaka, Masashi Nakamura, Shigeyuki Hashizume, Hideo Katayama +1 more | 1982-09-21 |