Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4259119 | Boride-based refractory materials | Hiroki Shimizu | 1981-03-31 |
| 4246027 | High-density sintered bodies with high mechanical strengths | Katsushige Nakazono, Yunosuke Tokuhiro | 1981-01-20 |