Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4647994 | Miniaturized cartridge-type tape drive for data processors | Samuel N. Irwin, Michael L. Bolt, Steven E. Henke, Edmund L. Sokolik, John M. Chambors | 1987-03-03 |
| 4646175 | Method and apparatus for positioning transducers by digital conversion of analog-type signals | Edmund L. Sokolik | 1987-02-24 |
| 4586094 | Method and apparatus for pre-recording tracking information on magnetic media | John M. Chambors | 1986-04-29 |
| 4472750 | Data record with pre-recorded transducer positioning signals, and system for utilizing same | Marlin K. Klumpp, Joseph H. Mueller, Samuel N. Irwin | 1984-09-18 |
| 4462053 | Method for controlling a disc head | Bruce D. Graham, Samuel N. Irwin, Juan F. Velazquez | 1984-07-24 |
| D270348 | Integrated disc and tape recorder drive unit | Samuel N. Irwin, Otto R. Butsch, Juan F. Velazquez | 1983-08-30 |
| D270055 | Combined disc and tape drive | Samuel N. Irwin, Otto R. Butsch, Juan F. Velazquez | 1983-08-09 |