Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8285998 | Dynamic image content tamper detecting device and system | Takaaki Yamada, Nobuharu Miura, Michiro Maeta, Takashi Mizuno | 2012-10-09 |
| 7577843 | System and method for controlling contents by plurality of pieces of control information | Takao Arai, Hiroyuki Kimura, Takaaki Yamada, Yasuhiro Fujii | 2009-08-18 |
| 7499565 | Method of watermarking for binary images | Yasuhiro Fujii, Kazunori Nakano, Hiroshi Yoshiura | 2009-03-03 |
| 7478432 | Method and system for contents control | Hiroshi Yoshiura, Kunihiko Miyazaki, Kousuke Anzai, Jun'ichi Taguchi, Kazunori Nakano +1 more | 2009-01-13 |
| 7310428 | Method of detecting digital watermark information | Kousuke Anzai, Hiroshi Yoshiura | 2007-12-18 |
| 7293294 | Method and apparatus for using contents | Hiromi Ukai, Shigeki Hirasawa, Kousuke Anzai, Hiroshi Yoshiura, Masataka Okayama +1 more | 2007-11-06 |
| 7113613 | Watermark information detection method | Hiroshi Yoshiura, Hiroyuki Kimura, Akio Fukushima, Kousuke Anzai | 2006-09-26 |
| 7065226 | Method for embedding information and extracting the same | Kousuke Anzai, Hiroshi Yoshiura, Shinobu Eikawa | 2006-06-20 |
| 7047407 | Network system enabling transmission control | Shinji Itoh, Kunihiko Miyazaki | 2006-05-16 |
| 7047412 | Digital watermark data embedding method, and digital watermark data embeddability analyzing method | Hiroshi Yoshiura, Ryoichi Sasaki, Shinichiro Harano, Shinobu Eikawa | 2006-05-16 |
| 6970575 | Method of extracting digital watermark information and method of judging bit value of digital watermark information | Hiroshi Yoshiura, Yutaka Kurosu, Kousuke Anzai | 2005-11-29 |
| 6865677 | Contents rendering control method, contents reproducing equipment, and contents distribution equipment | Hiroshi Yoshiura, Ryoichi Sasaki, Shinichiro Harano, Shinobu Eikawa | 2005-03-08 |
| 6826291 | Method and system for embedding information into contents | Hiroshi Yoshiura, Junichi Taguchi, Akira Maeda, Takao Arai, Toshifumi Takeuchi | 2004-11-30 |
| 6728408 | Water-mark embedding method and system | Hiroshi Yoshiura, Masafumi Nakamura, Takao Arai, Toshifumi Takeuchi | 2004-04-27 |
| 6711276 | Control method and apparatus for embedding information in data | Hiroshi Yoshiura, Takao Arai, Hiroyuki Kimura, Toshifumi Takeuchi, Yoshiaki Moriyama +2 more | 2004-03-23 |
| 6650763 | Method of extracting digital watermark information and method of judging bit value of digital watermark information | Hiroshi Yoshiura, Yutaka Kurosu, Kousuke Anzai | 2003-11-18 |
| 6584210 | Digital watermark image processing method | Junichi Taguchi, Hiroshi Yoshiura, Akira Maeda, Takao Arai, Toshifumi Takeuchi | 2003-06-24 |
| 6563935 | Method of extracting digital watermark information and method of judging bit value of digital watermark information | Hiroshi Yoshiura, Kousuke Anzai, Yutaka Kurosu | 2003-05-13 |
| 6456727 | Method of extracting digital watermark information and method of judging but value of digital watermark information | Hiroshi Yoshiura, Yutaka Kurosu, Kousuke Anzai | 2002-09-24 |
| 6418232 | Method of authenticating digital-watermark pictures | Kazunori Nakano, Juńichi Taguchi, Hiroshi Yoshiura, Yutaka Kurosu | 2002-07-09 |