Inventor
OSAWA YOSHITOMO
JP105 patents
⚠️ This page may combine multiple inventors who share the name “OSAWA YOSHITOMO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
48 patentsUS6360320B2Mar 19, 2002
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
SONY CORP154 citations99
US6223285B1Apr 24, 2001
Method and system for transferring information using an encryption mode indicator
SONY CORP174 citations99
US5883958AMar 16, 1999
Method and device for data decryption, a method and device for device identification, a recording medium, a method of disk production, and a method and apparatus for disk recording
SONY CORP156 citations99
US7319752B2Jan 15, 2008
Information recording device, information playback device, information recording method, information playback method, and information recording medium and program providing medium used therewith
SONY CORP88 citations98
US7225339B2May 29, 2007
Information recording/playback apparatus and method
SONY CORP70 citations98
US7203968B2Apr 10, 2007
Method and apparatus for selectively executing information recording using a cognizant mode and a non-cognizant mode
SONY CORP81 citations98
US6728379B1Apr 27, 2004
Information processor and information processing method
SONY CORP114 citations98
US6516064B1Feb 4, 2003
Signal recording apparatus, signal record medium and signal reproducing apparatus
SONY CORP97 citations98
US6005839ADec 21, 1999
Data transmitting method, data recording apparatus, data record medium and data reproducing apparatus
SONY CORP124 citations98
US7181624B2Feb 20, 2007
Information recording/playback apparatus and method
SONY CORP46 citations96
US7167564B2Jan 23, 2007
Information processing system and method
SONY CORP51 citations96
US7065214B2Jun 20, 2006
Information processing apparatus, information processing method, information processing system and recording medium
SONY CORP42 citations96
US6999587B1Feb 14, 2006
Information recording/reproducing system
SONY CORP54 citations96
US6978377B1Dec 20, 2005
Copy protection using detailed copy control information
SONY CORP64 citations96
US6944763B1Sep 13, 2005
Data transmission system
SONY CORP24 citations96
US6834346B1Dec 21, 2004
Content processing system
SONY CORP64 citations96
US6697945B2Feb 24, 2004
Information processing apparatus, information processing method, information processing system and recording medium
SONY CORP63 citations96
US6256391B1Jul 3, 2001
Enciphering apparatus and method, deciphering apparatus and method as well as information processing apparatus and method
SONY CORP45 citations96
US6134201AOct 17, 2000
Data recording apparatus, method therefor, data reproducing apparatus, method therefor and record medium
SONY CORP45 citations96
US6009170ADec 28, 1999
Method for appending a signal with ciphered playback mode information
SONY CORP76 citations96
US5901127AMay 4, 1999
Data recording method and apparatus, data record medium and data reproducing method and apparatus
SONY CORP51 citations96
US5802174ASep 1, 1998
Data recording medium
SONY CORP70 citations96
US7346170B2Mar 18, 2008
Information processing system and method
SONY CORP56 citations94
US7636843B1Dec 22, 2009
Information transmission system and method, drive device and access method, information recording medium, device and method for producing recording medium
SONY CORP23 citations93
US7242769B2Jul 10, 2007
Enciphering apparatus and method, deciphering apparatus and method as well as information processing apparatus and method
SONY CORP10 citations93
US7073061B2Jul 4, 2006
Data transmission system
SONY CORP17 citations93
US6934463B2Aug 23, 2005
Information processing apparatus, information processing method, information processing system and recording medium
SONY CORP26 citations93
US6742118B1May 25, 2004
Information processing apparatus, information processing method, data recording medium, and information processing system
SONY CORP29 citations93
US6546490B2Apr 8, 2003
Signal transmision method
SONY CORP25 citations93
US6539094B1Mar 25, 2003
Data transmission apparatus and method, data receiving apparatus and method, and data transmitting/receiving system and method
SONY CORP32 citations93
US6487293B2Nov 26, 2002
Method and apparatus for reproducing ciphered data
SONY CORP17 citations93
US6463153B1Oct 8, 2002
Method for transmitting data apparatus for recording data medium for recording data and apparatus for reproducing data
SONY CORP40 citations93
US6445795B1Sep 3, 2002
Data recording method and apparatus, data record medium and data reproducing method and apparatus
SONY CORP20 citations93
US6363209B2Mar 26, 2002
Signal recording/reproducing method and apparatus, signal record medium and signal
SONY CORP27 citations93
US6215745B1Apr 10, 2001
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
SONY CORP23 citations93
US5930367AJul 27, 1999
Apparatus for recording/reproducing or transmitting/receiving signal data having a portion of an error correction code replaced with other information and methods thereof
SONY CORP43 citations93
US7269257B2Sep 11, 2007
System and method for processing information using encryption key block
SONY CORP24 citations92
US7093128B2Aug 15, 2006
Information recording/reproducing apparatus and method
SONY CORP27 citations92
US6911974B2Jun 28, 2005
Information processing system and method
SONY CORP33 citations92
US7376626B2May 20, 2008
Information recording medium, information processing apparatus, information processing method, and computer program
SONY CORP20 citations90
US7738662B2Jun 15, 2010
Information processing system and method
SONY CORP8 citations84
US7505599B2Mar 17, 2009
Information processing system and method for managing encrypted data with tag information
SONY CORP8 citations84
US7401231B2Jul 15, 2008
Information recording/playback device and method
SONY CORP18 citations84
US7380132B2May 27, 2008
Data recording method and apparatus, data record medium and data reproducing method and apparatus
SONY CORP10 citations84
US7346169B2Mar 18, 2008
Information processing device and method
SONY CORP19 citations84
US7310731B2Dec 18, 2007
Contents processing system
SONY CORP13 citations84
US7283633B2Oct 16, 2007
Information recording and/or reproducing method and information recording and/or reproducing device
SONY CORP14 citations84
US7260719B1Aug 21, 2007
Information processing system, information processing method, and information processing device
SONY CORP16 citations84
SONY ELECTRONICS INC
1 patentISHIGURO RYUJI
1 patentShowing the top 50 of 105 patents by PatentIndex Score.