Issued Patents All Time
Showing 26–50 of 105 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7248607 | Data transmission method for embedded data, data transmitting and reproducing apparatuses and information recording medium therefor | Osamu Kawamae, Hiroshi Yoshiura, Takao Arai | 2007-07-24 |
| 7174092 | Method and apparatus for recording/reproducing digital video signal or audio signal, and optical disk apparatus | Yutaka Nagai, Shigemitsu Higuchi | 2007-02-06 |
| 7133335 | Wobble signal reproducing circuit | Kouichirou Nishimura, Kouichi Hirose, Manabu Katsuki | 2006-11-07 |
| 7116893 | Data recording/reproduction apparatus and method | Osamu Kawamae, Takao Arai, Hiroyuki Kimura | 2006-10-03 |
| 7117181 | Reproduction apparatus and reproduction method of digital video signal or audio signal | Yutaka Nagai | 2006-10-03 |
| 7043645 | Reproducing apparatus, recording apparatus and display apparatus | Osamu Kawamae, Hiroyuki Kimura, Takao Arai, Hiroshi Yoshiura | 2006-05-09 |
| 7019927 | Information signal recording and playback method and apparatus therefor | Seiichi Saito, Masafumi Nakamura, Junji Shiokawa, Osamu Kawamae | 2006-03-28 |
| 6996545 | Reproduction apparatus and reproduction method of digital video signal or audio signal | Yutaka Nagai | 2006-02-07 |
| 6993250 | Data recording device for recording data in basic recording units | Hiroaki Ono, Tatsuya Ishitobi | 2006-01-31 |
| 6882728 | Reproduction apparatus and decoding apparatus | Masaru Takahashi, Osamu Kawamae | 2005-04-19 |
| 6826291 | Method and system for embedding information into contents | Hiroshi Yoshiura, Isao Echizen, Junichi Taguchi, Akira Maeda, Takao Arai | 2004-11-30 |
| 6804453 | Digital signal recording/reproducing apparatus | Manabu Sasamoto, Hiroo Okamoto, Masaru Takahashi | 2004-10-12 |
| 6785207 | Wobble signal reproducing circuit | Kouichirou Nishimura, Kouichi Hirose, Manabu Katsuki | 2004-08-31 |
| 6778757 | Data recording/reproduction apparatus and method | Osamu Kawamae, Takao Arai, Hiroyuki Kimura | 2004-08-17 |
| 6754442 | Method and apparatus for recording/reproducing digital video signal or audio signal, and optical disk apparatus | Yutaka Nagai, Shigemitsu Higuchi | 2004-06-22 |
| 6728408 | Water-mark embedding method and system | Isao Echizen, Hiroshi Yoshiura, Masafumi Nakamura, Takao Arai | 2004-04-27 |
| 6711276 | Control method and apparatus for embedding information in data | Hiroshi Yoshiura, Isao Echizen, Takao Arai, Hiroyuki Kimura, Yoshiaki Moriyama +2 more | 2004-03-23 |
| 6693966 | Transmitting and recording method, reproducing method, and reproducing apparatus of information and its recording medium | Masafumi Nakamura | 2004-02-17 |
| 6690813 | Method and apparatus for recording and reproducing electronic watermark information, and recording medium | Hiroyuki Kimura, Takao Arai, Hiroshi Yoshiura | 2004-02-10 |
| 6674858 | Receiving device, recording and reproducing device and receiving/recording-reproducing system for digital broadcast signal | Hiroyuki Kimura, Takao Arai | 2004-01-06 |
| 6657831 | Information signal recording and playback method and apparatus therefor | Seiichi Saito, Masafumi Nakamura, Junji Shiokawa, Osamu Kawamae | 2003-12-02 |
| 6584210 | Digital watermark image processing method | Junichi Taguchi, Hiroshi Yoshiura, Isao Echizen, Akira Maeda, Takao Arai | 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, Hiroyuki Kimura, Takao Arai, Hiroshi Yoshiura | 2003-06-10 |
| 6549579 | Transmitting and recording method, reproducing method, and reproducing apparatus of information and its recording medium | Masafumi Nakamura | 2003-04-15 |
| 6535614 | Method and apparatus for recording and reproducing electronic watermark information, and recording medium | Hiroyuki Kimura, Takao Arai, Hiroshi Yoshiura | 2003-03-18 |