Kohtoku; Yasuhiko
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kohtoku; Yasuhiko.The latest application filed is for "ceramic composite material and porous ceramic material".
- Kohtoku; Yasuhiko - Ube JP
- Kohtoku; Yasuhiko - Tsuchiura JP
- Kohtoku; Yasuhiko - Ichihara JA
| Patent | Date |
|---|---|
| Ceramic composite material and porous ceramic material Grant 5,981,415 - Waku , et al. November 9, 1 | 1999-11-09 |
| Fused ceramic composite Grant 5,902,763 - Waku , et al. May 11, 1 | 1999-05-11 |
| Ceramic composite material Grant 5,569,547 - Waku , et al. October 29, 1 | 1996-10-29 |
| Ceramic composite material Grant 5,484,752 - Waku , et al. January 16, 1 | 1996-01-16 |
| Sialon-based sintered body and process for producing same Grant 5,200,374 - Yamada , et al. April 6, 1 | 1993-04-06 |
| Production of olefins from a lower alcohol or dimethyl ether Grant 4,410,751 - Shin , et al. October 18, 1 | 1983-10-18 |
| Method for producing isopentene Grant 3,872,180 - Nakatomi , et al. March 18, 1 | 1975-03-18 |
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