Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845061 | Silicon nitride-alumina composite ceramics and producing method thereof | Kazuhiro Inoguchi, Naochika Nunogaki, Tetsuo Toyama | 1989-07-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845061 | Silicon nitride-alumina composite ceramics and producing method thereof | Kazuhiro Inoguchi, Naochika Nunogaki, Tetsuo Toyama | 1989-07-04 |