Issued Patents 1997
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699344 | Disk drive device having stabilized spindle | Kiyoshi Ohmori | 1997-12-16 |
| 5684783 | Reproducing apparatus having a detector for simultaneously scanning adjacent tracks of an optical recording medium | Goro Fujita | 1997-11-04 |
| 5680381 | Recording medium, recording method, recording/reproducing apparatus, and cutting apparatus | — | 1997-10-21 |
| 5663940 | Optical pickup apparatus including hologram element | Tsunehiro Maruo | 1997-09-02 |
| 5633854 | Methods and apparatus for reproducing data recorded on an optical recording medium | Goro Fujita | 1997-05-27 |
| 5623478 | Apparatus for reproducing an optical recording medium having first and second pit strings on opposite sides of each track | — | 1997-04-22 |
| 5606545 | Reproducing apparatus having a detector for simultaneously scanning adjacent tracks of an optical recording medium | Goro Fujita | 1997-02-25 |
| 5602810 | Tracking error generating method using sampling of servo pits and switching of differential signals | Goro Fujita | 1997-02-11 |