Inventor · disambiguated record
Tatsuyuki Matsushita
Also filed as: MATSUSHITA TATSUYUKI
72 granted patents·38 pending applications·306 citations·filing 2003–2018
98Inventor score
Top patents by PatentIndex Score
110 records- 0193US10361851B2Authenticator, authenticatee and authentication methodTOSHIBA MEMORY CORP·Filed 2018·Granted Jul 23, 2019·7 cites·6 claims
- 0290US8661527B2Authenticator, authenticatee and authentication methodKATO TAKU·Filed 2012·Granted Feb 25, 2014·10 cites·2 claims
- 0389US7565698B2Information-processing deviceTOSHIBA KK·Filed 2004·Granted Jul 21, 2009·39 cites·16 claims
- 0488US9294285B2Information recording deviceTOSHIBA KK·Filed 2014·Granted Mar 22, 2016·9 cites·4 claims
- 0587US7182251B2IC-card service period setting method, IC card, IC card case and battery chargerTOSHIBA KK·Filed 2006·Granted Feb 27, 2007·11 cites·6 claims
- 0686US9819487B2Re-encryption key generator, re-encryption device, encryption device, decryption device, and programTOSHIBA KK·Filed 2015·Granted Nov 14, 2017·6 cites·9 claims
- 0785US9124432B2Host device and authentication method for host deviceNAGAI YUJI·Filed 2012·Granted Sep 1, 2015·7 cites·2 claims
- 0885US8812843B2Device and authentication method thereforNAGAI YUJI·Filed 2012·Granted Aug 19, 2014·7 cites·1 claims
- 0984US8995657B2Device and method for certifying one's own authenticityNAGAI YUJI·Filed 2012·Granted Mar 31, 2015·7 cites·2 claims
- 1084US7545943B2Apparatus, method, and computer program product for playing back contentTOSHIBA KK·Filed 2006·Granted Jun 9, 2009·6 cites·17 claims
- 1183US8745391B2Data recording device, host device and method of processing data recording deviceKATO TAKU·Filed 2012·Granted Jun 3, 2014·5 cites·1 claims
- 1282US8634557B2Semiconductor storage deviceNAGAI YUJI·Filed 2012·Granted Jan 21, 2014·5 cites·2 claims
- 1381US8850207B2Data recording device, and method of processing data recording deviceKATO TAKU·Filed 2012·Granted Sep 30, 2014·5 cites·5 claims
- 1481US8732466B2Semiconductor memory deviceNAGAI YUJI·Filed 2012·Granted May 20, 2014·6 cites·16 claims
- 1581US7529935B2Information communication device, information communication system, and computer program product for transmission controlTOSHIBA KK·Filed 2004·Granted May 5, 2009·32 cites·25 claims
- 1680US7568094B2Content providing system, user system, tracing system, apparatus, method, and programTOSHIBA KK·Filed 2005·Granted Jul 28, 2009·5 cites·21 claims
- 1778US10187207B2Re-encryption key generator, re-encryption apparatus, encryption apparatus, decryption apparatus, and storage mediumTOSHIBA KK·Filed 2016·Granted Jan 22, 2019·3 cites·14 claims
- 1878US8761389B2MemoryNAGAI YUJI·Filed 2012·Granted Jun 24, 2014·4 cites·6 claims
- 1978US8726024B2Authentication methodNAGAI YUJI·Filed 2012·Granted May 13, 2014·4 cites·1 claims
- 2078US8650398B2Device authentication using restricted memoryNAGAI YUJI·Filed 2012·Granted Feb 11, 2014·4 cites·2 claims
- 2177US8650393B2AuthenticatorKATO TAKU·Filed 2012·Granted Feb 11, 2014·3 cites·10 claims
- 2275US8861723B2Storage device, access device, and program productKAMBAYASHI TORU·Filed 2011·Granted Oct 14, 2014·4 cites·18 claims
- 2375US7134600B2IC-card service period setting method, IC card, IC card case and battery chargerTOSHIBA KK·Filed 2003·Granted Nov 14, 2006·16 cites·7 claims
- 2473US9426131B2Server apparatus and program to re-encrypt ciphertext dataTOSHIBA KK·Filed 2014·Granted Aug 23, 2016·3 cites·6 claims
- 2573US8122246B2Method for generating decryption key, apparatus and method using decryption keyMATSUSHITA TATSUYUKI·Filed 2006·Granted Feb 21, 2012·6 cites·26 claims
- 2673US7182264B2IC-card service period setting method, IC card, IC card case and battery chargerTOSHIBA KK·Filed 2006·Granted Feb 27, 2007·4 cites·3 claims
- 2772US9319389B2Data recording device, and method of processing data recording deviceTOSHIBA KK·Filed 2014·Granted Apr 19, 2016·2 cites·2 claims
- 2872US8667286B2Host device, semiconductor memory device, and authentication methodKATO TAKU·Filed 2012·Granted Mar 4, 2014·2 cites·8 claims
- 2971US7121472B2Semiconductor integrated circuit, semiconductor integrated circuit module and information apparatusTOSHIBA KK·Filed 2003·Granted Oct 17, 2006·25 cites·25 claims
- 3070US8762717B2Authentication deviceNAGAI YUJI·Filed 2012·Granted Jun 24, 2014·2 cites·1 claims
- 3170US8751814B2DeviceNAGAI YUJI·Filed 2012·Granted Jun 10, 2014·2 cites·2 claims
- 3270US6811083B2IC card, and method and program for preventing illegal use of IC cardTOSHIBA KK·Filed 2003·Granted Nov 2, 2004·22 cites·24 claims
- 3369US8984294B2System of authenticating an individual memory device via reading data including prohibited data and readable dataTOSHIBA KK·Filed 2013·Granted Mar 17, 2015·2 cites·1 claims
- 3469US7961887B2Content distribution system and tracking systemTOSHIBA KK·Filed 2008·Granted Jun 14, 2011·4 cites·25 claims
- 3569US7724906B2Decryption apparatus and decryption methodTOSHIBA KK·Filed 2005·Granted May 25, 2010·4 cites·16 claims
- 3667US9544138B2Authenticator, authenticatee and authentication methodNAGAI YUJI·Filed 2012·Granted Jan 10, 2017·2 cites·12 claims
- 3766US7962745B2Content providing system, user system, tracing system, apparatus, method and programTOSHIBA KK·Filed 2009·Granted Jun 14, 2011·1 cites·15 claims
- 3865US8627455B1Manufacturing method of a memory device to be authenticatedNAGAI YUJI·Filed 2012·Granted Jan 7, 2014·1 cites·2 claims
- 3964US11397821B2Remote access control systemTOSHIBA KK·Filed 2018·Granted Jul 26, 2022·1 cites·10 claims
- 4064US9100187B2AuthenticatorTOSHIBA KK·Filed 2014·Granted Aug 4, 2015·1 cites·6 claims
- 4164US8885870B2Information processing device and computer program productMATSUSHITA TATSUYUKI·Filed 2011·Granted Nov 11, 2014·3 cites·3 claims
- 4261US10116439B2Encrypted data computation system, device, and programTOSHIBA KK·Filed 2015·Granted Oct 30, 2018·1 cites·9 claims
- 4361US9246683B2Re-encryption key generator, re-encryption apparatus, and programTOSHIBA KK·Filed 2013·Granted Jan 26, 2016·1 cites·13 claims
- 4461US8989374B2Cryptographic device for secure authenticationNAGAI YUJI·Filed 2012·Granted Mar 24, 2015·1 cites·1 claims
- 4561US8949621B2Memory device authenticationNAGAI YUJI·Filed 2012·Granted Feb 3, 2015·1 cites·1 claims
- 4661US8938616B2Authentication methodNAGAI YUJI·Filed 2012·Granted Jan 20, 2015·1 cites·1 claims
- 4761US8041949B2Information processing scheme for realizing contents transfer and copyright protectionTOSHIBA KK·Filed 2005·Granted Oct 18, 2011·2 cites·14 claims
- 4860US6945467B2IC card, and method and program for preventing illegal use of IC cardTOSHIBA KK·Filed 2004·Granted Sep 20, 2005·5 cites·9 claims
- 4959US10361850B2Authenticator, authenticatee and authentication methodTOSHIBA MEMORY CORP·Filed 2017·Granted Jul 23, 2019·0 cites·1 claims
- 5058US9160531B2Host device, semiconductor memory device, and authentication methodTOSHIBA KK·Filed 2014·Granted Oct 13, 2015·0 cites·1 claims
Showing the top 50 of 110 patent records by PatentIndex Score.
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