Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4395023 | Shroud for steel making electric-arc furnace | Fumio Tomizawa, Yoshiaki Yoshimatsu, Sadayuki Saito, Takashi Otani, Senzaburo Hirano | 1983-07-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4395023 | Shroud for steel making electric-arc furnace | Fumio Tomizawa, Yoshiaki Yoshimatsu, Sadayuki Saito, Takashi Otani, Senzaburo Hirano | 1983-07-26 |