Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5652738 | Magnetooptical recording method for overwriting information on a recording medium includes selecting one of two recording modes based on recording information | Yoichi Osato | 1997-07-29 |
| 5596555 | Magnetooptical recording medium having magnetic layers that satisfy predetermined coercive force relationships, and recording/reproduction method for the medium | Yoichi Osato | 1997-01-21 |