Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858794 | Submerged nozzle for steel casting | Sadanobu Sugiura, Teruhisa Kawashima | 1989-08-22 |
| 4691844 | Immersion nozzle for continuous casting | Yoshihiro Ishino, Sadanobu Sugiura | 1987-09-08 |