Issued Patents 2004
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823074 | Digital-watermark superposing apparatus and digital-watermarker detecting apparatus | Kazumi Sugaya, Takeshi Nakamura | 2004-11-23 |
| 6804452 | Apparatus for generating recording signal including image data and copy condition information | Kazuo Kuroda, Hidejiro Higashi, Kazumi Sugaya, Keiichi Yamauchi | 2004-10-12 |
| RE38569 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Kaoru Yamamoto, Ryuichiro Yoshimura, Takao Sawabe, Akihiro Tozaki, Junichi Yoshio | 2004-08-24 |
| 6778761 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Tokihiro Takahashi, Hidehiro Ishii, Hiroyuki Kurashina, Takao Sawabe, Junichi Yoshio | 2004-08-17 |
| 6757483 | Information recording medium with aggregate attribute information recorded in video manager, apparatus for recording the same and apparatus for reproducing the same | Takao Sawabe, Ryuichiro Yoshimura, Junichi Yoshio, Akihiro Tozaki, Kaoru Yamamoto | 2004-06-29 |
| 6741797 | Information record medium, apparatus for recording the same and apparatus for reproducing the same | Akihiro Tozaki, Tokihiro Takahashi, Hidehiro Ishii, Junichi Yoshio, Hiroshi Nakamura +2 more | 2004-05-25 |
| 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, Kazumi Sugaya | 2004-03-16 |