Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4282288 | Graphite refractory article having dense structure with low porosity | Shigeo Yoshino, Tadashi Zenbutsu, Hajime Asami | 1981-08-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4282288 | Graphite refractory article having dense structure with low porosity | Shigeo Yoshino, Tadashi Zenbutsu, Hajime Asami | 1981-08-04 |