Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823074 | Digital-watermark superposing apparatus and digital-watermarker detecting apparatus | Takeshi Nakamura, Yoshiaki Moriyama | 2004-11-23 |
| 6804452 | Apparatus for generating recording signal including image data and copy condition information | Kazuo Kuroda, Hidejiro Higashi, Yoshiaki Moriyama, Keiichi Yamauchi | 2004-10-12 |
| 6711276 | Control method and apparatus for embedding information in data | Hiroshi Yoshiura, Isao Echizen, Takao Arai, Hiroyuki Kimura, Toshifumi Takeuchi +2 more | 2004-03-23 |
| 6707774 | Recording and reproducing system, recording apparatus and reproducing apparatus having copy protection function | Kazuo Kuroda, Toshio Suzuki, Yoshiaki Moriyama | 2004-03-16 |