Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686172 | Metal-foil-clad composite ceramic board and process for the production thereof | Norio Sayama | 1997-11-11 |
| 5670231 | Clutch facing | Norio Sayama | 1997-09-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686172 | Metal-foil-clad composite ceramic board and process for the production thereof | Norio Sayama | 1997-11-11 |
| 5670231 | Clutch facing | Norio Sayama | 1997-09-23 |