Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8006272 | Method and apparatus of displaying bit stream data, method and apparatus for generating bit stream data, and storage medium | Tatsunori Kanai, Takeshi Saito, Hiroshi Yao, Shigeyasu Natsubori, Osamu Hori +6 more | 2011-08-23 |
| 7747871 | Information recording apparatus, information reproducing apparatus, and information distribution system | Koichiro Akiyama, Shuichi Tsujimoto, Kazuo Sumita, Hideki Hirakawa, Toshihiro Sugaya | 2010-06-29 |
| 7578000 | Rendering device, recording device, copy control method, and program | Tomoo Yamakage, Hisashi Yamada, Hirofumi Muratani | 2009-08-18 |
| 7458090 | Method and apparatus of displaying bit stream data, method and apparatus for generating bit stream data, and storage medium | Tatsunori Kanai, Takeshi Saito, Hiroshi Yao, Shigeyasu Natsubori, Osamu Hori +6 more | 2008-11-25 |
| 7450596 | Scheme for realizing communications through external network from contents processing device connected to local network in home environment | Takeshi Saito, Mikio Hashimoto, Koichiro Akiyama | 2008-11-11 |
| 7389272 | Information recording device and information reproducing device | Koichiro Akiyama, Yutaka Handa, Yoshihiro Ohmori | 2008-06-17 |
| 7343495 | Information recording apparatus, information reproducing apparatus, and information distribution system | Koichiro Akiyama, Shuichi Tsujimoto, Kazuo Sumita, Hideki Hirakawa, Toshihiro Sugaya | 2008-03-11 |
| 7272717 | System of authentication, apparatus, program and method | Shingo Miyazaki, Naoki Endo, Takehisa Kato, Daigo Yoshii, Koichi Noguchi +9 more | 2007-09-18 |
| 7210042 | Device information generating device, device information generating method, control data generating device, control data generating method, content utilizing device, content utilizing method, and storage medium | — | 2007-04-24 |
| 7127431 | Information recording device and information reproducing device | Koichiro Akiyama, Yutaka Handa, Yoshihiro Ohmori | 2006-10-24 |
| 7023862 | Scheme for realizing communications through external network from contents processing device connected to local network in home environment | Takeshi Saito, Mikio Hashimoto, Koichiro Akiyama | 2006-04-04 |
| 6952486 | Digital watermark embedding method and apparatus, and digital watermark | Tomoo Yamakage, Hirofumi Muratani, Hisashi Yamada, Shinichiro Koto | 2005-10-04 |
| 6941283 | Information recording device and information reproducing device | Koichiro Akiyama, Yutaka Handa, Yoshihiro Ohmori | 2005-09-06 |
| 6772133 | Information recording device and information reproducting device | Koichiro Akiyama, Yutaka Handa, Yoshihiro Ohmori | 2004-08-03 |
| 6741723 | Digital watermark embedding method and apparatus, and digital watermark | Tomoo Yamakage, Hirofumi Muratani, Hisashi Yamada, Shinichiro Koto | 2004-05-25 |
| 6665303 | Scheme for realizing communications through external network from contents processing device connected to local network in home environment | Takeshi Saito, Mikio Hashimoto, Koichiro Akiyama | 2003-12-16 |
| 6650752 | Broadcast reception device and contract management device using common master key in conditional access broadcast system | Koichiro Akiyama, Shuichi Tsujimoto, Naoki Endoh | 2003-11-18 |
| 6650754 | Broadcast reception device and contract management device using common master key in conditional access broadcast system | Koichiro Akiyama, Shuichi Tsujimoto, Naoki Endoh | 2003-11-18 |
| 6477649 | Information recording apparatus, information reproducing apparatus, and information distribution system | Koichiro Akiyama, Shuichi Tsujimoto, Kazuo Sumita, Hideki Hirakawa, Toshihiro Sugaya | 2002-11-05 |
| 6473901 | Method and apparatus of displaying bit stream data, method and apparatus for generating bit stream data, and storage medium | Tatsunori Kanai, Takeshi Saito, Hiroshi Yao, Shigeyasu Natsubori, Osamu Hori +6 more | 2002-10-29 |
| 6463155 | Broadcast reception device and contract management device using common master key in conditional access broadcast system | Koichiro Akiyama, Shuichi Tsujimoto, Naoki Endoh | 2002-10-08 |
| 6208801 | Information reproducing apparatus and information recording medium for use in the information reproducing apparatus | Hiroyuki Mizutani | 2001-03-27 |
| 6163799 | Communication navigation system which easily finds person who is interested in the same topic | Ichiro Tomoda, Yasuhiko Shimomura, Takashi Ida, Hirofumi Muratani, Toshiya Takahashi +5 more | 2000-12-19 |
| 6157809 | Broadcasting system, broadcast receiving unit, and recording medium used in the broadcasting system | — | 2000-12-05 |
| 5832229 | Multicast communication system allows user to join or leave multicast groups and specify communication quality using easily comprehensible and operable user terminal display | Ichiro Tomoda, Satoshi Ito, Takashi Ida, Yasuhiko Shimomura, Toshiya Takahashi +2 more | 1998-11-03 |