Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648028 | Method of manufacturing a sintered composite body of silicon nitride and silicon carbide | Kagehisa Hamazaki, Hitoshi Toyoda, Yoshikatsu Higuchi | 1997-07-15 |
| 5618768 | Sintered body of silicon nitride and composite sintered body of silicon nitride and silicon carbide | Yoshikatsu Higuchi | 1997-04-08 |