Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4638945 | Nozzle for the gunning of monolithic refractories | Yukio Ozaki, Shingo Nonaka | 1987-01-27 |
| 4623393 | Refractory gun mix | Masashi Mori, Shingo Nonaka, Hiroshi Kyoden, Kenji Ichikawa, Yoshihisa Hamazaki | 1986-11-18 |