Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5866490 | Monolithic refractory and gunning material using the refractory | Akira Watanabe, Shigeyuki Takanaga, Yasutoshi Mizuta | 1999-02-02 |
| 4436678 | Method for hot repairing the inside of a furnace | Yasuo Nishikawa | 1984-03-13 |