Issued Patents All Time
Showing 26–50 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7249101 | Method and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium | Yoichiro Sako, Yoshitomo Osawa, Isao Kawashima, Hideo Owa | 2007-07-24 |
| 7246095 | Method and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium | Yoichiro Sako, Yoshitomo Osawa, Isao Kawashima, Hideo Owa | 2007-07-17 |
| 7246096 | Method and apparatus for transmitting and receiving a decoding key encoded with specific information to decode encrypted information of a record medium | Yoichiro Sako, Yoshitomo Osawa, Isao Kawashima, Hideo Owa | 2007-07-17 |
| 7240033 | Information providing apparatus and method, information processing apparatus and method, program storage medium, program, and information providing system | Shinobu Kuriya | 2007-07-03 |
| 7215779 | Information providing apparatus and method, information processing apparatus and method, and program storage medium | Naomi Go | 2007-05-08 |
| 7178028 | Information processing apparatus and method, recording medium, and program | Naomi Go | 2007-02-13 |
| 7124297 | Information providing apparatus and method, information processing apparatus and method, and program storage medium | Naomi Go | 2006-10-17 |
| 7117362 | Information providing apparatus and method, information processing apparatus and method, and program storage medium | Naomi Go | 2006-10-03 |
| 7062785 | Method and apparatus for ciphering playback mode information for recording on record medium | Yoichiro Sako, Yoshitomo Osawa, Isao Kawashima, Shigeyuki Yoneyama | 2006-06-13 |
| 6990580 | Information providing apparatus and method, information processing apparatus and method, and program storage medium | Naomi Go | 2006-01-24 |
| 6983367 | Information providing apparatus and method, information processing apparatus and method, and program storage medium | Naomi Go | 2006-01-03 |
| 6944297 | Method and apparatus for reproducing ciphered data | Yoichiro Sako, Isao Kawashima, Yoshitomo Osawa, Hideo Owa | 2005-09-13 |
| 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, Yoshitomo Osawa, Isao Kawashima, Hideo Owa | 2005-04-19 |
| 6687828 | Method and apparatus for ciphering playback mode information for recording on record medium | Yoichiro Sako, Yoshitomo Osawa, Isao Kawashima, Shigeyuki Yoneyama | 2004-02-03 |
| 6546490 | Signal transmision method | Yoichiro Sako, Yoshitomo Osawa, Isao Kawashima, Shigeyuki Yoneyama | 2003-04-08 |
| 6516064 | Signal recording apparatus, signal record medium and signal reproducing apparatus | Yoshitomo Osawa, Yoichiro Sako, Isao Kawashima | 2003-02-04 |
| 6487293 | Method and apparatus for reproducing ciphered data | Yoichiro Sako, Isao Kawashima, Yoshitomo Osawa, 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, Yoshitomo Osawa, 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, Yoshitomo Osawa, Hideo Owa | 2002-09-03 |
| 6363209 | Signal recording/reproducing method and apparatus, signal record medium and signal | Yoichiro Sako, Isao Kawashima, Yoshitomo Osawa, Shozo Masuda | 2002-03-26 |
| 6345146 | Signal recording/reproducing method and apparatus, signal record medium and signal transmission/reception method and apparatus | Yoichiro Sako, Isao Kawashima, Yoshitomo Osawa, 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, Yoshitomo Osawa, Shozo Masuda | 2002-02-05 |
| 6341133 | Information providing apparatus and portable communication terminal | Yoji Kawamoto | 2002-01-22 |
| 6249771 | Information providing system | — | 2001-06-19 |
| 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, Yoshitomo Osawa, Isao Kawashima, Hideo Owa | 2001-04-10 |