Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4720837 | Ladle furnace | — | 1988-01-19 |
| 4706258 | Scrap melting method | Saburo Sugiura, Noboru Demukai, Tetsuo Okamoto | 1987-11-10 |
| 4614159 | Powdered coal burner | Saburo Sugiura, Kiyohide Hayashi, Noboru Demukai, Tetsuo Okamoto | 1986-09-30 |
| 4609538 | Scrap heating method | Sabro Sugiura, Kiyohide Hayashi, Noboru Demukai, Tetsuo Okamoto | 1986-09-02 |
| 4531971 | Method of and apparatus for melting scrap | Sabro Sugiura, Senji Fujita, Noboru Demukai, Tetuo Okamoto | 1985-07-30 |