Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6998183 | Magnetic recording medium with multilayer carbon overcoat | Shahid A. Pirzada, Ian L. Sanders, Kenneth E. Johnson | 2006-02-14 |
| 6875492 | Carbon overcoat for magnetic recording medium | Shahid A. Pirzada, Ian L. Sanders, Kenneth E. Johnson | 2005-04-05 |