Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5523268 | Silicon nitride sintered body | Yoshio Ukyo, Toshio Kandori | 1996-06-04 |
| 5120682 | Sintered body of silicon nitride | Yoshio Ukyo | 1992-06-09 |
| 5108965 | Method of manufacturing a silicon carbide-based material | Toshihiko Tani | 1992-04-28 |
| 5104747 | Joined assembly of ceramic and metallic materials | Hiroaki Makino, Nobuo Kamiya | 1992-04-14 |
| 5081079 | Sintered body of silicon nitride and a process for making the same | Yoshio Ukyo | 1992-01-14 |
| 5081077 | Process for producing sintered body of metal boride and raw material composition therefor | Toshihiko Tani | 1992-01-14 |
| 5034355 | Tough silicon carbide composite material containing fibrous boride | Toshihiko Tani | 1991-07-23 |
| 4978645 | Silicon nitride sintered body | Yoshio Ukyo, Kazumasa Takatori | 1990-12-18 |
| 4925815 | Silicon carbide composite ceramic | Toshihiko Tani | 1990-05-15 |
| 4692099 | Rotary component of a rotary device for heat engines and a method of manufacturing the same | Takahiko Homma | 1987-09-08 |
| 4489232 | Apparatus for heating a mixed gas on an internal combustion engine | Toshio Yamada | 1984-12-18 |
| 4327697 | Heater for air-fuel mixture having heating element of positive temperature coefficient resistor | Toshio Yamada | 1982-05-04 |
| 4293514 | Method of producing honeycomb structural bodies consisting of barium titanate series ceramics having a positive temperature coefficient of electric resistance | — | 1981-10-06 |
| 4240890 | Oxygen partial pressure measuring device suitably adapted for internal combustion engine exhaust gases | Tetsuo Watanabe, Shigeo Soejima | 1980-12-23 |
| 4222783 | Barium titanate series ceramics having a positive temperature coefficient of electric resistance | Senji Atsumi | 1980-09-16 |