Issued Patents All Time
Showing 76–94 of 94 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7294199 | Nitride single crystal and producing method thereof | Koji Uematsu | 2007-11-13 |
| 7112826 | Single crystal GaN substrate semiconductor device | Kensaku Motoki, Takuji Okahisa, Ryu Hirota, Koji Uematsu | 2006-09-26 |
| 7105865 | AlxInyGa1−x−yN mixture crystal substrate | Ryu Hirota, Kensaku Motoki, Takuji Okahisa, Kouji Uematsu | 2006-09-12 |
| 7087114 | Single crystal GaN substrate, method of growing single crystal GaN and method of producing single crystal GaN substrate | Kensaku Motoki, Ryu Hirota, Takuji Okahisa | 2006-08-08 |
| 6667184 | Single crystal GaN substrate, method of growing same and method of producing same | Kensaku Motoki, Takuji Okahisa, Ryu Hirota, Koji Uematsu | 2003-12-23 |
| 6544917 | Si3N4 ceramic, Si-base composition for its production, and method for its production | Michimasa Miyanaga | 2003-04-08 |
| 6410468 | Si3N4 ceramic, Si-base composition for production thereof and processes for producing these | Akira Yamakawa | 2002-06-25 |
| 6284690 | Si3N4 ceramic, Si-base composition for production thereof and processes for producing these | Akira Yamakawa | 2001-09-04 |
| 6143677 | Silicon nitride sinter having high thermal conductivity and process for preparing the same | Michimasa Miyanaga, Akira Yamakawa | 2000-11-07 |
| 6001759 | Silicon nitride sintered body, method of preparing the same and nitrided compact | Michimasa Miyanaga, Akira Yamakawa | 1999-12-14 |
| 5756411 | Sintered body of silicon nitride and method of producing the same | Akira Yamakawa, Hisao Takeuchi | 1998-05-26 |
| 5695700 | Method of preparing a ceramic porous body | Hisao Takeuchi, Takahiro Matsuura, Chihiro Kawai | 1997-12-09 |
| 5618765 | Ceramics porous body and method of preparing the same | Hisao Takeuchi, Takahiro Matsuura, Chihiro Kawai | 1997-04-08 |
| 5529962 | Aluminum nitride sintered body and method of producing the same | Takahiro Matsuura, Kouichi Sogabe, Akira Yamakawa | 1996-06-25 |
| 5482905 | Aluminum nitride sintered body and method of producing the same | Takahiro Matsuura, Kouichi Sogabe, Akira Yamakawa | 1996-01-09 |
| 5449648 | Method for preparing an aluminum nitride sintered body | Takahiro Matsuura, Kouichi Sogabe, Akira Yamakawa | 1995-09-12 |
| 5395694 | Aluminum nitride powder having surface layer containing oxynitride | Kouichi Sogabe, Takahiro Matsuura, Akira Yamakawa | 1995-03-07 |
| 5393715 | Aluminum nitride sintered body and method of preparing the same | Takahiro Matsuura, Kouichi Sogabe, Akira Yamakawa | 1995-02-28 |
| 5343150 | Apparatus and method for measuring a physical property of a sample using an electron spin resonance spectrum of the sample | Kouichi Sogabe, Akira Yamakawa | 1994-08-30 |