Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6331496 | High performance ceramic matrix composite | — | 2001-12-18 |
| 5641434 | Silicon nitride powder | Tetsuo Yamada, Takeshi Yamao | 1997-06-24 |
| 5200374 | Sialon-based sintered body and process for producing same | Tetsuo Yamada, Atsuhiko Tanaka, Takuji Takahashi, Yasuhiko Kohtoku | 1993-04-06 |
| 4845059 | Process for producing .alpha.-Sialon powder | Yasuhiko Kohtoku | 1989-07-04 |