Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829497 | Optical disc recording method and apparatus for digital data having a plurality of transmission rates | Yoichiro Sako, Shinichi Yamamura | 1989-05-09 |
| 4819236 | Data transmission method suitable for a disc | Yoichiro Sako, Shinichi Yamamura | 1989-04-04 |
| 4800549 | Method and apparatus for seeking target address with error check code | Yoichiro Sako | 1989-01-24 |