Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684772 | Magneto-optical disc recording and reproducing system with level clamping | Tetsuji Kawashima | 1997-11-04 |
| 5675586 | Record medium, and method for recording to and reproducing from a record medium | Yoichiro Sako, Satoshi Otsuka, Minoru Tobita | 1997-10-07 |
| 5592465 | Disc recording method | Tetsu Watanabe, Yoichiro Sako | 1997-01-07 |