Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6906989 | Apparatus and method for searching for defective address of recording medium | — | 2005-06-14 |
| 6564352 | Error detection circuit applicable to a disk reproduction apparatus | Nobuhiro Sato | 2003-05-13 |