Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6937553 | Recorder for recording copy of production on the basis of copy attribute embedded as electronic watermark in the production, reproducing device for reproducing recorded copy, recorded medium, recording method, and reproducing method | Hideshi Ishihara | 2005-08-30 |