Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7390359 | Nitride semiconductor wafer | Koji Uematsu, Takuji Okahisa | 2008-06-24 |
| 7041366 | Porous silicon nitride ceramics and method for producing the same | Osamu Komura | 2006-05-09 |
| 6800360 | Porous ceramics and method of preparing the same as well as microstrip substrate | Noboru Uchimura, Osamu Komura | 2004-10-05 |
| 6617272 | Si3N4 sintered body with high thermal conductivity and method for producing the same | Ai Itoh | 2003-09-09 |
| 6599637 | Silicon nitride composite substrate | Ai Itoh, Masashi Yoshimura | 2003-07-29 |
| 6544917 | Si3N4 ceramic, Si-base composition for its production, and method for its production | Seiji Nakahata | 2003-04-08 |
| 6143677 | Silicon nitride sinter having high thermal conductivity and process for preparing the same | Seiji Nakahata, Akira Yamakawa | 2000-11-07 |
| 6001759 | Silicon nitride sintered body, method of preparing the same and nitrided compact | Seiji Nakahata, Akira Yamakawa | 1999-12-14 |