Issued Patents 1994
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5372099 | Ceramic adjusting shim | Kenji Matsunuma, Akira Yamakawa | 1994-12-13 |
| 5358797 | Adjusting shim | Kenji Matsunuma, Takehisa Yamamoto, Akira Yamakawa | 1994-10-25 |
| 5346869 | Sintered silicon nitride bodies suitable for use as high impact materials | Takehisa Yamamoto, Kenji Matsunuma, Akira Yamakawa, Masaya Miyake | 1994-09-13 |
| 5328876 | High strength silicon nitride sintered body and process for producing same | Akira Kuibira, Kenji Matsunuma, Yoshishige Takano, Matsuo Higuchi, Masaaki Honda +1 more | 1994-07-12 |
| 5297365 | Method of machining silicon nitride ceramics and silicon nitride ceramics products | Kenji Matsunuma, Akira Yamakawa | 1994-03-29 |
| 5275772 | Silicon nitride sintered body and process for producing the same | Takehisa Yamamoto, Kenji Matsunuma, Akira Yamakawa, Masaya Miyake | 1994-01-04 |
| 5275986 | Silicon nitride sintered body | Takehisa Yamamoto, Tomoyuki Awazu, Akira Yamakawa | 1994-01-04 |