Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5626943 | Ultra-smooth ceramic substrates and magnetic data storage media prepared therefrom | — | 1997-05-06 |
| 5616426 | Ceramic substrate with silicon carbide smoothing layer | Irving B. Ruppel | 1997-04-01 |