Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6524549 | Method for producing &agr;-alumina powder | Norio Matsuda, Shinichiro Tanaka, Yoshio Uchida, Yoshinari Sawabe, Hisashi Watanabe +1 more | 2003-02-25 |
| 6521203 | Process for producing &agr;-alumina | Yoshio Uchida, Yoshinari Sawabe, Hisashi Watanabe | 2003-02-18 |
| 6303091 | Metal oxide powder and method for the production of the same | Hironobu Koike, Shinichiro Tanaka, Tetsu Umeda, Hisashi Watanabe, Kunio Saegusa +1 more | 2001-10-16 |
| 6165437 | .alpha.-alumina | Yoshio Uchida, Yoshinari Sawabe, Hisashi Watanabe | 2000-12-26 |
| 6162413 | Alpha-alumina and method for producing same | Shinji Fujiwara, Hiroshi Tabuchi | 2000-12-19 |
| 6159441 | .alpha.-alumina powder and process for producing the same | Yoshio Uchida, Yoshinari Sawabe, Hisashi Watanabe | 2000-12-12 |
| 6106800 | Method for producing alpha-alumina powder | Norio Matsuda, Shinichiro Tanaka, Yoshio Uchida, Yoshinari Sawabe, Hisashi Watanabe +1 more | 2000-08-22 |
| 5935550 | .alpha.-alumina powder and process for producing the same | Yoshio Uchida, Yoshinari Sawabe, Hisashi Watanabe | 1999-08-10 |
| 5851649 | Inorganic porous sintered body and filter | Tetsu Umeda | 1998-12-22 |
| 5688480 | Complex metal oxide powder and method for the production of the same | Hironobu Koike, Tetsu Umeda | 1997-11-18 |
| 5672554 | Alumina composition, alumina molded article, alumina ceramics, and process for producing ceramics | Norio Matsuda, Shinichiro Tanaka, Yoshio Uchida | 1997-09-30 |
| 5646078 | Aluminum nitride powder | Shinichiro Tanaka, Takeshi Miyai | 1997-07-08 |
| 5538709 | Process for producing alpha-alumina powder | Yoshio Uchida, Yoshinari Sawabe | 1996-07-23 |
| 5496513 | Preparation method of dense sintered bodies for solid electrolytes | Kenji Nakane, Tetsu Umeda | 1996-03-05 |
| 5296421 | Method for producing zirconia-based sintered body | Yasunori Nishida | 1994-03-22 |