Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4189130 | Blast-furnace tuyere | Shigeo Shoji, Akimune Sato, Takashi Oka | 1980-02-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4189130 | Blast-furnace tuyere | Shigeo Shoji, Akimune Sato, Takashi Oka | 1980-02-19 |