Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643384 | WATERMARK DATA HIDING APPARATUS, A METHOD OF HIDING WATERMARK DATA, A METHOD OF TRANSMITTING DATA INCLUDING WATERMARK DATA, A RECORDING MEDIUM STORING DATA INCLUDING WATERMARK DATA, A DATA AND WATERMARK DATA READING APPARATUS, AND A METHOD OF READING DATA AND WATERMARK DATA | Joji Naito | 2003-11-04 |