Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874674 | Metal-ceramic composite bodies | Isao Oda | 1989-10-17 |
| 4865896 | Composite joined bodies including an intermediate member having a honeycomb structure | Akiihiko Yoshida | 1989-09-12 |
| 4801414 | Production of silicon nitride sintered body | Tomonori Takahashi | 1989-01-31 |
| 4798493 | Ceramic-metal composite body | Isao Oda | 1989-01-17 |
| 4795724 | Silicon nitride sintered bodies and process for manufacturing the same | Tomonori Takahashi | 1989-01-03 |