Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5665291 | Method for producing high density sintered silicon nitride(Si.sub.3 N.sub.4 ) | Katuhiko Honma, Hiroshi Okada, Masato Moritoki, Takao Fujikawa | 1997-09-09 |
| 5603876 | Method for producing high density sintered silicon nitride (SI.sub.3 N.sub. 4 | Katuhiko Honma, Hiroshi Okada, Masato Moritoki, Takao Fujikawa | 1997-02-18 |
| 5538926 | Alumina based ceramic material and method of manufacturing the same | Takehiro Tsuchida, Moriyoshi Kanamaru | 1996-07-23 |
| 5445776 | Method for producing high density sintered silicon nitride (Si.sub.3 N.sub. 4 | Katuhiko Honma, Hiroshi Okada, Masato Moritoki, Takao Fujikawa | 1995-08-29 |
| 5123935 | Al.sub.2 O.sub.3 composites, process for producing them and throw-away tip made of Al.sub.2 O.sub.3 composites | Moriyoshi Kanamaru, Noboru Ohyama | 1992-06-23 |
| 4541975 | Method for producing high strength sintered silicon carbide | Katsuhiko Honma, Hiroshi Okada | 1985-09-17 |