Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5055433 | Refractory having high resistance to corrosion and spalling and manufacturing method thereof | Shigeki Niwa, Kazuhide Kawai, Toshio Kawamura | 1991-10-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5055433 | Refractory having high resistance to corrosion and spalling and manufacturing method thereof | Shigeki Niwa, Kazuhide Kawai, Toshio Kawamura | 1991-10-08 |