Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6905749 | Optical recording disk, method for making and using the same | — | 2005-06-14 |
| 6891790 | Optical recording medium, optical recording device and optical recording method | Syuji Tsukamoto | 2005-05-10 |