Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4294795 | Stabilized electrocast zirconia refractories | Hiroyuki Fukuda, Hiroshi Shinoda, Hideharu Hayakawa | 1981-10-13 |
| 4288251 | Reinforced electrocast zirconia refractories | Hiroyuki Fukuda, Hiroshi Shinoda, Hideharu Hayakawa | 1981-09-08 |
| 4183306 | Hot gas recirculation type burning furnace | Saburo Hori, Yukio Ito | 1980-01-15 |