Inventor · disambiguated record
Taizo Shirai
Also filed as: SHIRAI TAIZO
82 granted patents·28 pending applications·625 citations·filing 2001–2023
99Inventor score
Top patents by PatentIndex Score
110 records- 0198US7669052B2Authentication and encryption utilizing command identifiersSONY CORP·Filed 2006·Granted Feb 23, 2010·42 cites·21 claims
- 0298US7373506B2Data authentication systemSONY CORP·Filed 2001·Granted May 13, 2008·168 cites·32 claims
- 0392US7124443B2Information transaction systemSONY CORP·Filed 2001·Granted Oct 17, 2006·38 cites·17 claims
- 0491US7225341B2Memory access control system and management method using access control ticketSONY CORP·Filed 2002·Granted May 29, 2007·69 cites·46 claims
- 0591US6834333B2Data processing device, data storage device, data processing method, and program providing medium for storing content protected under high security managementSONY CORP·Filed 2001·Granted Dec 21, 2004·77 cites·22 claims
- 0690US8375206B2Authentication and encryption utilizing command identifiersSONY CORP·Filed 2010·Granted Feb 12, 2013·9 cites·23 claims
- 0787US10553056B2Information processing apparatus, information processing method, and programSONY CORP·Filed 2015·Granted Feb 4, 2020·5 cites·16 claims
- 0886US8073140B2Encryption/decryption device, encryption/decryption method, and computer programSHIRAI TAIZO·Filed 2007·Granted Dec 6, 2011·14 cites·15 claims
- 0986US8031866B2Cryptographic processing apparatus and cryptographic processing method, and computer programSONY CORP·Filed 2008·Granted Oct 4, 2011·9 cites·44 claims
- 1084US8275127B2Cryptographic processing apparatus, cryptographic processing method, and computer program thereforSHIRAI TAIZO·Filed 2010·Granted Sep 25, 2012·6 cites·19 claims
- 1182US8165288B2Cryptographic processing apparatus and cryptographic processing method, and computer programSHIBUTANI KYOJI·Filed 2007·Granted Apr 24, 2012·9 cites·18 claims
- 1281US8666069B2Cryptographic processing apparatus and cryptographic processing method, and computer programSHIRAI TAIZO·Filed 2012·Granted Mar 4, 2014·4 cites·24 claims
- 1381US8306217B2Cryptographic processing apparatus and cryptographic processing method, and computer programSHIRAI TAIZO·Filed 2011·Granted Nov 6, 2012·4 cites·41 claims
- 1480US8522033B2Authentication device, authentication method, program, and signature generation deviceSAKUMOTO KOICHI·Filed 2011·Granted Aug 27, 2013·5 cites·18 claims
- 1580US8369522B2Encryption processing apparatus, encryption method, and computer programSONY CORPOATION·Filed 2007·Granted Feb 5, 2013·9 cites·26 claims
- 1679US8959355B2Authentication device, authentication method, program, and signature generation deviceSONY CORP·Filed 2013·Granted Feb 17, 2015·4 cites·20 claims
- 1779US8824671B2Data converter, data conversion method, and computer programSONY CORP·Filed 2012·Granted Sep 2, 2014·4 cites·27 claims
- 1879US7747011B2Encryption device, encryption method, and computer programSONY CORP·Filed 2005·Granted Jun 29, 2010·10 cites·25 claims
- 1978US7433470B2Cryptographic processing apparatus, cryptographic processing method, and computer programSONY CORP·Filed 2004·Granted Oct 7, 2008·16 cites·22 claims
- 2077US10262630B2Information processing apparatus and control methodSONY CORP·Filed 2018·Granted Apr 16, 2019·1 cites·18 claims
- 2177US9270458B2Encryption processing device, encryption processing method, and programSHIBUTANI KYOJI·Filed 2012·Granted Feb 23, 2016·5 cites·16 claims
- 2277US8787563B2Data converter, data conversion method and programSHIRAI TAIZO·Filed 2009·Granted Jul 22, 2014·7 cites·14 claims
- 2375US9129122B2Signature verification apparatus, signature verification method, program, and recording mediumSAKUMOTO KOICHI·Filed 2012·Granted Sep 8, 2015·4 cites·7 claims
- 2475US8577023B2Encryption processing method, apparatus, and computer program utilizing different types of S-boxesSHIRAI TAIZO·Filed 2007·Granted Nov 5, 2013·5 cites·32 claims
- 2574US8826025B2Authentication device, authentication method, program, and signature generation deviceSAKUMOTO KOICHI·Filed 2013·Granted Sep 2, 2014·3 cites·14 claims
- 2672US8538887B2Content delivery system and content delivery methodYOSHINO KENJI·Filed 2001·Granted Sep 17, 2013·12 cites·8 claims
- 2772US8340282B2Information processing apparatusSHIRAI TAIZO·Filed 2006·Granted Dec 25, 2012·5 cites·8 claims
- 2872US8295478B2Cryptographic processing apparatus, algorithm constructing method, processing method, and computer program applying an extended feistel structureSHIRAI TAIZO·Filed 2007·Granted Oct 23, 2012·5 cites·25 claims
- 2972US7092909B2Information processing apparatus and method, and distribution mediumSONY CORP·Filed 2004·Granted Aug 15, 2006·5 cites·3 claims
- 3071US11496463B2Information processing terminal, information processing device, information processing method, and information processing systemSONY CORP·Filed 2017·Granted Nov 8, 2022·1 cites·6 claims
- 3171US10347059B2Information processing apparatus, information processing method, program, and information processing systemSONY CORP·Filed 2018·Granted Jul 9, 2019·2 cites·18 claims
- 3271US8767956B2Cryptographic processing apparatus, cryptographic processing method, and computer program thereforSHIRAI TAIZO·Filed 2012·Granted Jul 1, 2014·2 cites·12 claims
- 3369US8737603B2Cryptographic processing apparatus, cryptographic processing method, and computer programSHIRAI TAIZO·Filed 2007·Granted May 27, 2014·4 cites·15 claims
- 3468US9418245B2Encryption processing device, encryption processing method, and programSHIBUTANI KYOJI·Filed 2012·Granted Aug 16, 2016·2 cites·10 claims
- 3568US8433912B2Authentication device, authentication method, program, and signature generation deviceSAKUMOTO KOICHI·Filed 2011·Granted Apr 30, 2013·2 cites·16 claims
- 3667US11263843B2Information processing apparatus, information processing mei'hod, and programSONY CORP·Filed 2019·Granted Mar 1, 2022·1 cites·11 claims
- 3767US7797532B2Device authentication systemSONY CORP·Filed 2004·Granted Sep 14, 2010·14 cites·17 claims
- 3866US9083507B2Data processing device, data processing method, and programSHIBUTANI KYOJI·Filed 2012·Granted Jul 14, 2015·2 cites·12 claims
- 3965US7243228B2Data storage with CBC-mode encryption processingSONY CORP·Filed 2001·Granted Jul 10, 2007·9 cites·8 claims
- 4064US12449266B2Information processing apparatus, information processing method, and storage mediumSONY GROUP CORP·Filed 2021·Granted Oct 21, 2025·0 cites·16 claims
- 4164US7124317B2Information recording and playback system having a memory interface and method thereforeSONY CORP·Filed 2001·Granted Oct 17, 2006·10 cites·19 claims
- 4263US10762876B2Information processing apparatus and control methodSONY CORP·Filed 2019·Granted Sep 1, 2020·0 cites·11 claims
- 4363US7925017B2Information recording device, information playback device, information recording medium, information recording method, information playback method, and program providing mediumSONY CORP·Filed 2001·Granted Apr 12, 2011·5 cites·14 claims
- 4462US9607173B2Information processing apparatus, information processing method, and recording mediumSONY CORP·Filed 2015·Granted Mar 28, 2017·1 cites·17 claims
- 4562US8396210B2Cryptographic processing apparatus and cryptographic processing method, and computer programSHIBUTANI KYOJI·Filed 2007·Granted Mar 12, 2013·2 cites·10 claims
- 4661US8843457B2Data conversion device, data conversion method, and programSONY CORP·Filed 2013·Granted Sep 23, 2014·2 cites·20 claims
- 4760US7996335B2Information processing device, contents distribution server, license server, and method and computer programSONY CORP·Filed 2003·Granted Aug 9, 2011·8 cites·16 claims
- 4859US10771739B2Information processing device and information processing methodSONY CORP·Filed 2019·Granted Sep 8, 2020·0 cites·15 claims
- 4959US8787568B2Data transformation apparatus, data transformation method, and computer programSHIBUTANI KYOJI·Filed 2007·Granted Jul 22, 2014·1 cites·8 claims
- 5059US8380683B2Data conversion device, data conversion method, and programSONY CORP·Filed 2009·Granted Feb 19, 2013·1 cites·19 claims
Showing the top 50 of 110 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →