Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5017531 | Silicon nitride ceramic sintered bodies | Noriyuki Ukai, Mithuru Miyamoto, Tadaaki Matsuhisa | 1991-05-21 |
| 5015608 | High hardness silicon nitride sintered bodies | Tadaaki Matsuhisa | 1991-05-14 |
| 5002907 | Homogenous silicon nitride sintered body | Shigenori Ito | 1991-03-26 |
| 4871697 | Method of producing homogeneous silicon nitride sintered bodies | Noriyuki Ukai | 1989-10-03 |
| 4820665 | Ceramic sintered bodies and a process for manufacturing the same | Noriyuki Ukai, Mithuru Miyamoto, Tadaaki Matsuhisa | 1989-04-11 |
| 4810681 | Method of manufacturing dense cordierite | — | 1989-03-07 |
| 4742759 | Ceramic insert cast piston | — | 1988-05-10 |
| 4273587 | Polycrystalline transparent spinel sintered body and a method for producing the same | Isao Oda, Masayuki Kaneno | 1981-06-16 |