Issued Patents 2003
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6665417 | Method of judging digital watermark information | Kousuke Anzai, Yutaka Kurosu | 2003-12-16 |
| 6658135 | Recording device | Hajime Morito, Naoko Iwami, Chisato Konno, Yutaka Kurosu | 2003-12-02 |
| 6650763 | Method of extracting digital watermark information and method of judging bit value of digital watermark information | Isao Echizen, Yutaka Kurosu, Kousuke Anzai | 2003-11-18 |
| 6584210 | Digital watermark image processing method | Junichi Taguchi, Isao Echizen, Akira Maeda, Takao Arai, Toshifumi Takeuchi | 2003-06-24 |
| 6578149 | METHOD FOR REPRODUCING DATA, APPARATUS FOR REPRODUCING DATA, METHOD FOR CODING DATA, METHOD FOR RECORDING DATA, APPARATUS FOR RECORDING AND REPRODUCING DATA, METHOD FOR AUTHENTICATION, SEMICONDUCTOR CHIP, REPRODUCING APPARATUS, RECORDING APPARATUS AND DATA PROCESSING APPARATUS | Osamu Kawamae, Toshifumi Takeuchi, Hiroyuki Kimura, Takao Arai | 2003-06-10 |
| 6563935 | Method of extracting digital watermark information and method of judging bit value of digital watermark information | Isao Echizen, Kousuke Anzai, Yutaka Kurosu | 2003-05-13 |
| 6535614 | Method and apparatus for recording and reproducing electronic watermark information, and recording medium | Hiroyuki Kimura, Takao Arai, Toshifumi Takeuchi | 2003-03-18 |
| 6519351 | Method and apparatus for recording and reproducing electronic watermark information, and recording medium | Hiroyuki Kimura, Takao Arai, Toshifumi Takeuchi | 2003-02-11 |
| 6504931 | Method and apparatus for encrypting data | Kazuo Takaragi, Mayuko Shimizu | 2003-01-07 |