Patents per Year
Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 8077428 | Disk drive correcting position error signal based on velocity of head | Min Chen, Qixing Zheng | 2011-12-13 | $6,703,000 |
| 7095580 | Methods to determine gross and fine positioning on a reference surface of a media | Richard M. Ehrlich, Gary W. Calfee, Anton Gerasimov | 2006-08-22 | $518,000 |
| 7092182 | Marker-zone to determine gross positioning on a reference surface of a media | Richard M. Ehrlich, Gary W. Calfee, Anton Gerasimov | 2006-08-15 | $403,000 |
| 6061200 | In-drive correction of servo pattern errors | Stanley H. Shepherd, Richard M. Ehrlich, Richard T. Curran, William Akin | 2000-05-09 | |
| 5793559 | In drive correction of servo pattern errors | Stanley H. Shepherd, Richard M. Ehrlich, Richard T. Curran, William Akin | 1998-08-11 | $10,826,000 |
| 5444583 | Disk drive having on-board triggered digital sampling analyzer | Richard M. Ehrlich | 1995-08-22 | $6,756,000 |