Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686142 | Process of producing magnetic recording tape having textured backcoat | David Wallack, Donald M. Lewis, Peter Silbernagel, Robert V. Heiti, Yuko Yoshida | 1997-11-11 |
| 5620514 | Differential-speed gravure coating of magnetizable layers in the manufacture of magnetic recording media | Donald M. Lewis, Joseph Hung Lam, Kevin K. Kuck, Michael J. Brost, Norman E. Gehrke | 1997-04-15 |