Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6665417 | Method of judging digital watermark information | Hiroshi Yoshiura, Kousuke Anzai | 2003-12-16 |
| 6658135 | Recording device | Hajime Morito, Naoko Iwami, Hiroshi Yoshiura, Chisato Konno | 2003-12-02 |
| 6650763 | Method of extracting digital watermark information and method of judging bit value of digital watermark information | Isao Echizen, Hiroshi Yoshiura, Kousuke Anzai | 2003-11-18 |
| 6563935 | Method of extracting digital watermark information and method of judging bit value of digital watermark information | Isao Echizen, Hiroshi Yoshiura, Kousuke Anzai | 2003-05-13 |