Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5877910 | Dual magnetic head and method for writing on very high track density and conventional track density floppy disks | Roger O. Williams, Stephen P. Williams, Mark E. Strysko, Alton B. Otis, Jr., Andrew M. Rose | 1999-03-02 |
| 5535069 | Very high-density diskette format method and computer-implemented process | James Chiao, Alton B. Otis, Jr., Andrew M. Rose, Roger O. Williams, Stephen P. Williams +1 more | 1996-07-09 |
| 5515212 | Very high-density diskette format method and computer implemented process | James Chiao, Alton B. Otis, Jr., Andrew M. Rose, Roger O. Williams, Stephen P. Williams +1 more | 1996-05-07 |
| 5220476 | Non-erasable magnetic data storage method | Roger O. Williams, Stephen P. Williams | 1993-06-15 |
| 5120927 | High track density media with optical servo tracks and method and apparatus for inscribing the tracks on the media | Roger O. Williams, Milton C. Kurtz, Stephen P. Williams, Gregory K. Roberts | 1992-06-09 |
| 5067039 | High track density magnetic media with pitted optical servo tracks and method for stamping the tracks on the media | Stephen P. Williams | 1991-11-19 |
| 5065387 | Method and apparatus for generating tracking error signals by means of an optical servo system | Maxim Roth, Roger O. Williams | 1991-11-12 |
| 4961123 | Magnetic information media storage with optical servo tracks | Roger O. Williams, Milton C. Kurtz, Stephen P. Williams, Gregory K. Roberts | 1990-10-02 |
| 4958245 | Apparatus and method for optical servo control with media having information storage and servo control regions of different reflectivities | Maxim Roth, Roger O. Williams | 1990-09-18 |
| 4935835 | Magnetic media containing reference feature and methods for referencing magnetic head position to the reference feature | Roger O. Williams, Stephen P. Williams, Alton B. Otis, Jr. | 1990-06-19 |
| 4828371 | Anamorphic laser beam correction optics | Martin John McCaslin | 1989-05-09 |
| 4638470 | Apparatus using beam splitter cube with specific characteristics for reading information recorded in a magneto-optic medium | G. A. Neville Connell | 1987-01-20 |