Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643649 | Method for improving the flatness of glass disk substrates | James A. Hagan, Douglas Howard Piltingsrud, Bradley J. Offuh, Dennis L. Fox | 1997-07-01 |
| 5593341 | Method for manufacturing a disk drive unit having magnetic disks with textured data areas and head landing zones | Norman T. Gonnella | 1997-01-14 |