Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5633847 | Apparatus for recording on and playback from both sides of a disk shaped recording medium | Wataru Masuda | 1997-05-27 |
| 5563859 | Method for simultaneous recording and playback from both sides of a recording medium | Wataru Masuda | 1996-10-08 |