Inventor
SHIRAI TAIZO
JP82 patents
⚠️ This page may combine multiple inventors who share the name “SHIRAI TAIZO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
26 patentsUS7373506B2May 13, 2008
Data authentication system
SONY CORP168 citations99
US7225341B2May 29, 2007
Memory access control system and management method using access control ticket
SONY CORP69 citations98
US6834333B2Dec 21, 2004
Data processing device, data storage device, data processing method, and program providing medium for storing content protected under high security management
SONY CORP77 citations98
US7669052B2Feb 23, 2010
Authentication and encryption utilizing command identifiers
SONY CORP42 citations96
US7124443B2Oct 17, 2006
Information transaction system
SONY CORP38 citations93
US7433470B2Oct 7, 2008
Cryptographic processing apparatus, cryptographic processing method, and computer program
SONY CORP16 citations92
US8375206B2Feb 12, 2013
Authentication and encryption utilizing command identifiers
SONY CORP9 citations84
US8031866B2Oct 4, 2011
Cryptographic processing apparatus and cryptographic processing method, and computer program
SONY CORP9 citations84
US7996335B2Aug 9, 2011
Information processing device, contents distribution server, license server, and method and computer program
SONY CORP8 citations83
US7797532B2Sep 14, 2010
Device authentication system
SONY CORP14 citations81
US7747011B2Jun 29, 2010
Encryption device, encryption method, and computer program
SONY CORP10 citations77
US7243228B2Jul 10, 2007
Data storage with CBC-mode encryption processing
SONY CORP9 citations74
US7124317B2Oct 17, 2006
Information recording and playback system having a memory interface and method therefore
SONY CORP10 citations74
US10262630B2Apr 16, 2019
Information processing apparatus and control method
SONY CORP1 citations73
US8959355B2Feb 17, 2015
Authentication device, authentication method, program, and signature generation device
SONY CORP4 citations73
US8824671B2Sep 2, 2014
Data converter, data conversion method, and computer program
SONY CORP4 citations73
US10553056B2Feb 4, 2020
Information processing apparatus, information processing method, and program
SONY CORP5 citations72
US10347059B2Jul 9, 2019
Information processing apparatus, information processing method, program, and information processing system
SONY CORP2 citations70
US8843457B2Sep 23, 2014
Data conversion device, data conversion method, and program
SONY CORP2 citations63
US7925017B2Apr 12, 2011
Information recording device, information playback device, information recording medium, information recording method, information playback method, and program providing medium
SONY CORP5 citations63
US7092909B2Aug 15, 2006
Information processing apparatus and method, and distribution medium
SONY CORP5 citations63
US11496463B2Nov 8, 2022
Information processing terminal, information processing device, information processing method, and information processing system
SONY CORP1 citations62
US11263843B2Mar 1, 2022
Information processing apparatus, information processing mei'hod, and program
SONY CORP1 citations62
US11270532B2Mar 8, 2022
Lock control device, information processing method, program, and communication terminal
SONY CORP0 citations61
US11533181B2Dec 20, 2022
Information processing apparatus, registration apparatus, information processing method, and registration method
SONY CORP0 citations52
US10771739B2Sep 8, 2020
Information processing device and information processing method
SONY CORP0 citations52
SHIRAI TAIZO
10 patentsUS8787563B2Jul 22, 2014
Data converter, data conversion method and program
SHIRAI TAIZO7 citations84
US8666069B2Mar 4, 2014
Cryptographic processing apparatus and cryptographic processing method, and computer program
SHIRAI TAIZO4 citations84
US8073140B2Dec 6, 2011
Encryption/decryption device, encryption/decryption method, and computer program
SHIRAI TAIZO14 citations84
US8275127B2Sep 25, 2012
Cryptographic processing apparatus, cryptographic processing method, and computer program therefor
SHIRAI TAIZO6 citations81
US8737603B2May 27, 2014
Cryptographic processing apparatus, cryptographic processing method, and computer program
SHIRAI TAIZO4 citations73
US8577023B2Nov 5, 2013
Encryption processing method, apparatus, and computer program utilizing different types of S-boxes
SHIRAI TAIZO5 citations73
US8306217B2Nov 6, 2012
Cryptographic processing apparatus and cryptographic processing method, and computer program
SHIRAI TAIZO4 citations73
US8340282B2Dec 25, 2012
Information processing apparatus
SHIRAI TAIZO5 citations63
US8295478B2Oct 23, 2012
Cryptographic processing apparatus, algorithm constructing method, processing method, and computer program applying an extended feistel structure
SHIRAI TAIZO5 citations62
US8767956B2Jul 1, 2014
Cryptographic processing apparatus, cryptographic processing method, and computer program therefor
SHIRAI TAIZO2 citations59
SHIBUTANI KYOJI
5 patentsUS8165288B2Apr 24, 2012
Cryptographic processing apparatus and cryptographic processing method, and computer program
SHIBUTANI KYOJI9 citations83
US9270458B2Feb 23, 2016
Encryption processing device, encryption processing method, and program
SHIBUTANI KYOJI5 citations71
US8396210B2Mar 12, 2013
Cryptographic processing apparatus and cryptographic processing method, and computer program
SHIBUTANI KYOJI2 citations62
US9418245B2Aug 16, 2016
Encryption processing device, encryption processing method, and program
SHIBUTANI KYOJI2 citations60
US9083507B2Jul 14, 2015
Data processing device, data processing method, and program
SHIBUTANI KYOJI2 citations60
SAKUMOTO KOICHI
4 patentsUS9129122B2Sep 8, 2015
Signature verification apparatus, signature verification method, program, and recording medium
SAKUMOTO KOICHI4 citations72
US8522033B2Aug 27, 2013
Authentication device, authentication method, program, and signature generation device
SAKUMOTO KOICHI5 citations72
US8826025B2Sep 2, 2014
Authentication device, authentication method, program, and signature generation device
SAKUMOTO KOICHI3 citations62
US8433912B2Apr 30, 2013
Authentication device, authentication method, program, and signature generation device
SAKUMOTO KOICHI2 citations62
SONY GROUP CORP
2 patentsSONY CORPOATION
1 patentYOSHINO KENJI
1 patentAKISHITA TORU
1 patentShowing the top 50 of 82 patents by PatentIndex Score.