Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4707753 | Disk drive head access mechanism | William J. Friehauf, Donovan M. Janssen, Michael E. Nard, Leroy Rose | 1987-11-17 |
| 4675761 | Magnetic head positioning apparatus and method | William H. Ashbee, Richard S. Kilen, Larry E. Rittenhouse, James A. Valent | 1987-06-23 |
| 4636892 | Flexible disk drive optimized for automated manufacture | William J. Friehauf, Donovan M. Janssen, Robert M. Murphy, Leroy Rose | 1987-01-13 |
| 4628385 | Two stage colleting in a flexible disk drive | Donovan M. Janssen, Robert M. Murphy, Leroy Rose | 1986-12-09 |
| 4626943 | Torsional actuator for loading and unloading flexible disk drive | Donovan M. Janssen, Robert M. Murphy, Leroy Rose | 1986-12-02 |