Issued Patents All Time
Showing 76–100 of 105 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6934463 | Information processing apparatus, information processing method, information processing system and recording medium | Ryuji Ishiguro, Yoshio Osakabe, Makoto Sato, Hisato Shima, Tomoyuki Asano +1 more | 2005-08-23 |
| 6911974 | Information processing system and method | Tomoyuki Asano, Tateo Oishi, Ryuji Ishiguro, Ryuta Taki | 2005-06-28 |
| 6882987 | Methods and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium | Yoichiro Sako, Akira Kurihara, Isao Kawashima, Hideo Owa | 2005-04-19 |
| 6834346 | Content processing system | Yoshihito Ishibashi, Tateo Oishi, Tomoyuki Asano | 2004-12-21 |
| 6742118 | Information processing apparatus, information processing method, data recording medium, and information processing system | Toshitada Doi | 2004-05-25 |
| 6728379 | Information processor and information processing method | Yoshihito Ishibashi, Tateo Oishi, Tomoyuki Asano | 2004-04-27 |
| 6697945 | Information processing apparatus, information processing method, information processing system and recording medium | Ryuji Ishiguro, Yoshio Osakabe, Makoto Sato, Hisato Shima, Tomoyuki Asano +1 more | 2004-02-24 |
| 6687828 | Method and apparatus for ciphering playback mode information for recording on record medium | Yoichiro Sako, Akira Kurihara, Isao Kawashima, Shigeyuki Yoneyama | 2004-02-03 |
| 6546490 | Signal transmision method | Yoichiro Sako, Akira Kurihara, Isao Kawashima, Shigeyuki Yoneyama | 2003-04-08 |
| 6539094 | Data transmission apparatus and method, data receiving apparatus and method, and data transmitting/receiving system and method | Yoshio Osakabe, Makoto Sato, Tomoyuki Asano, Ryuji Ishiguro, Hisato Shima | 2003-03-25 |
| 6526146 | Information recording system | Megumu Hashimoto, Tomoyuki Asano | 2003-02-25 |
| 6516064 | Signal recording apparatus, signal record medium and signal reproducing apparatus | Yoichiro Sako, Akira Kurihara, Isao Kawashima | 2003-02-04 |
| 6487293 | Method and apparatus for reproducing ciphered data | Yoichiro Sako, Isao Kawashima, Akira Kurihara, Hideo Owa | 2002-11-26 |
| 6463153 | Method for transmitting data apparatus for recording data medium for recording data and apparatus for reproducing data | Yoichiro Sako, Akira Kurihara, Isao Kawashima, Hideo Owa | 2002-10-08 |
| 6445795 | Data recording method and apparatus, data record medium and data reproducing method and apparatus | Yoichiro Sako, Isao Kawashima, Akira Kurihara, Hideo Owa | 2002-09-03 |
| 6363209 | Signal recording/reproducing method and apparatus, signal record medium and signal | Yoichiro Sako, Isao Kawashima, Akira Kurihara, Shozo Masuda | 2002-03-26 |
| 6360320 | INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING METHOD, INFORMATION PROCESSING SYSTEM AND RECORDING MEDIUM USING AN APPARATUS ID AND PROVIDED LICENSE KEY FOR AUTHENTICATION OF EACH INFORMATION TO BE PROCESSED | Ryuji Ishiguro, Yoshio Osakabe, Makoto Sato, Hisato Shima, Tomoyuki Asano | 2002-03-19 |
| 6345146 | Signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus | Yoichiro Sako, Isao Kawashima, Akira Kurihara, Shozo Masuda | 2002-02-05 |
| 6345145 | Signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus | Yoichiro Sako, Isao Kawashima, Akira Kurihara, Shozo Masuda | 2002-02-05 |
| 6256391 | Enciphering apparatus and method, deciphering apparatus and method as well as information processing apparatus and method | Ryuji Ishiguro, Yoshio Osakabe, Makoto Sato, Hisato Shima, Tomoyuki Asano | 2001-07-03 |
| 6223285 | Method and system for transferring information using an encryption mode indicator | Teruyoshi Komuro, Hisato Shima, Tomoyuki Asano | 2001-04-24 |
| 6215745 | Decoding key recorded at a recording site in order to decode information transmitted to that site is encoded with information specific to the recording site | Yoichiro Sako, Akira Kurihara, Isao Kawashima, Hideo Owa | 2001-04-10 |
| 6134201 | Data recording apparatus, method therefor, data reproducing apparatus, method therefor and record medium | Yoichiro Sako, Akira Kurihara, Isao Kawashima, Hideo Owa | 2000-10-17 |
| 6009170 | Method for appending a signal with ciphered playback mode information | Yoichiro Sako, Akira Kurihara, Isao Kawashima, Shigeyuki Yoneyama | 1999-12-28 |
| 6005839 | Data transmitting method, data recording apparatus, data record medium and data reproducing apparatus | Yoichiro Sako, Akira Kurihara, Isao Kawashima, Shozo Masuda, Hideo Owa | 1999-12-21 |