| 12070695 |
Crossword puzzle generating apparatus and crossword puzzle generating method |
Masahiro Hayashi |
2024-08-27 |
| 6970575 |
Method of extracting digital watermark information and method of judging bit value of digital watermark information |
Isao Echizen, Hiroshi Yoshiura, Kousuke Anzai |
2005-11-29 |
| 6959101 |
Method of judging digital watermark information |
Hiroshi Yoshiura, Kousuke Anzai |
2005-10-25 |
| 6707927 |
Steganographic system, method, program and storage medium therefor |
Kazumasa Kita, Hiroshi Yoshiura, Miki Tanaka, Shinobu Eikawa, Tomoyuki Kaji |
2004-03-16 |
| 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 |
| 6456727 |
Method of extracting digital watermark information and method of judging but value of digital watermark information |
Isao Echizen, Hiroshi Yoshiura, Kousuke Anzai |
2002-09-24 |
| 6418232 |
Method of authenticating digital-watermark pictures |
Kazunori Nakano, Juńichi Taguchi, Hiroshi Yoshiura, Isao Echizen |
2002-07-09 |
| 5680541 |
Diagnosing method and apparatus |
Fumitaka Nishiyama, Junji Ishiguro, Tadakazu Kimura |
1997-10-21 |