Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672553 | Superplastic silicon nitride sintered body | Hideki Hirotsuru, Hisayuki Suematsu, Toshiyuki Nishimura | 1997-09-30 |
| 5591685 | Superplastic silicon carbide sintered body | Hideki Hirotsuru, Youngwook Kim | 1997-01-07 |