Inventor · disambiguated record
Koichiro Akiyama
Also filed as: AKIYAMA KOICHIRO
31 granted patents·8 pending applications·677 citations·filing 1998–2023
97Inventor score
Top patents by PatentIndex Score
39 records- 0198US6477649B2Information recording apparatus, information reproducing apparatus, and information distribution systemTOSHIBA KK·Filed 1998·Granted Nov 5, 2002·156 cites·35 claims
- 0293US11288985B2Encryption device, decryption device, encryption method, decryption method, encryption program product, and decryption program productTOSHIBA KK·Filed 2020·Granted Mar 29, 2022·4 cites·7 claims
- 0392US6772133B1Information recording device and information reproducting deviceTOSHIBA KK·Filed 2000·Granted Aug 3, 2004·71 cites·5 claims
- 0491US12034850B2Encryption device, decryption device, encryption method, decryption method, and computer program productsTOSHIBA KK·Filed 2021·Granted Jul 9, 2024·2 cites·12 claims
- 0591US7343495B2Information recording apparatus, information reproducing apparatus, and information distribution systemTOSHIBA KK·Filed 2002·Granted Mar 11, 2008·26 cites·10 claims
- 0691US6650754B2Broadcast reception device and contract management device using common master key in conditional access broadcast systemTOSHIBA KK·Filed 2002·Granted Nov 18, 2003·63 cites·23 claims
- 0790US7363276B2Broadcast receiving method and apparatus and information distributing method and apparatusTOSHIBA KK·Filed 2006·Granted Apr 22, 2008·13 cites·13 claims
- 0890US7072865B2Broadcast receiving method and apparatus and information distributing method and apparatusTOSHIBA KK·Filed 2001·Granted Jul 4, 2006·45 cites·9 claims
- 0985US8266061B2Apparatus and method for digital content editingITO SATOSHI·Filed 2005·Granted Sep 11, 2012·7 cites·14 claims
- 1085US7773747B2Encryption apparatus, decryption apparatus, and methodTOSHIBA KK·Filed 2006·Granted Aug 10, 2010·14 cites·24 claims
- 1184US6941283B2Information recording device and information reproducing deviceTOSHIBA KK·Filed 2002·Granted Sep 6, 2005·24 cites·22 claims
- 1282US7787623B2Key generating apparatus, program, and methodTOSHIBA KK·Filed 2006·Granted Aug 31, 2010·12 cites·24 claims
- 1382US7127431B2Information recording device and information reproducing deviceTOSHIBA KK·Filed 2003·Granted Oct 24, 2006·18 cites·12 claims
- 1482US6463155B1Broadcast reception device and contract management device using common master key in conditional access broadcast systemTOSHIBA KK·Filed 1998·Granted Oct 8, 2002·102 cites·23 claims
- 1580US7389272B2Information recording device and information reproducing deviceTOSHIBA KK·Filed 2003·Granted Jun 17, 2008·13 cites·10 claims
- 1676US8046582B2Digital signature generation apparatus, digital signature verification apparatus, and key generation apparatusTOSHIBA KK·Filed 2010·Granted Oct 25, 2011·3 cites·3 claims
- 1776US6665303B1Scheme for realizing communications through external network from contents processing device connected to local network in home environmentTOSHIBA KK·Filed 1998·Granted Dec 16, 2003·72 cites·11 claims
- 1872US8832438B2Digital signature generation apparatus, digital signature verification apparatus, and key generation apparatusTOSHIBA KK·Filed 2013·Granted Sep 9, 2014·2 cites·6 claims
- 1972US7688973B2Encryption apparatus, decryption apparatus, key generation apparatus, program, and methodTOSHIBA KK·Filed 2005·Granted Mar 30, 2010·5 cites·18 claims
- 2070US9413729B2Symmetric encryption apparatus and storage medium, and symmetric decryption apparatus and storage mediumTOSHIBA KK·Filed 2014·Granted Aug 9, 2016·2 cites·10 claims
- 2166US6650752B2Broadcast reception device and contract management device using common master key in conditional access broadcast systemTOSHIBA KK·Filed 2002·Granted Nov 18, 2003·4 cites·23 claims
- 2264US8311215B2Encryption apparatus, decryption apparatus, key generation apparatus, and storage mediumAKIYAMA KOICHIRO·Filed 2009·Granted Nov 13, 2012·3 cites·30 claims
- 2363US7023862B2Scheme for realizing communications through external network from contents processing device connected to local network in home environmentTOSHIBA KK·Filed 2003·Granted Apr 4, 2006·6 cites·5 claims
- 2462US7747871B2Information recording apparatus, information reproducing apparatus, and information distribution systemTOSHIBA KK·Filed 2002·Granted Jun 29, 2010·3 cites·11 claims
- 2562US7490068B2Apparatus and method for rendering digital contentTOSHIBA KK·Filed 2005·Granted Feb 10, 2009·2 cites·2 claims
- 2660US7733844B2Packet filtering apparatus, packet filtering method, and computer program productTOSHIBA KK·Filed 2005·Granted Jun 8, 2010·2 cites·2 claims
- 2759US8065416B2Playlist composition apparatus, copyright management apparatus and view terminal apparatusKITO TOSHIYUKI·Filed 2006·Granted Nov 22, 2011·2 cites·22 claims
- 2859US7672905B2Apparatus and method for rendering digital contentTOSHIBA KK·Filed 2009·Granted Mar 2, 2010·1 cites·5 claims
- 2959US2003163374A1Point service providing system with mechanism for preventing illegal use of point dataTOSHIBA KK·Filed 2003·Application pending·0 cites
- 3053US2024195607A1Encryption device, key generation device, and computer program product for encryptionTOSHIBA KK·Filed 2023·Application pending·0 cites
- 3152US7836304B2Digital signature generation apparatus, digital signature verification apparatus, and key generation apparatusTOSHIBA KK·Filed 2006·Granted Nov 16, 2010·0 cites·6 claims
- 3250US7450596B2Scheme for realizing communications through external network from contents processing device connected to local network in home environmentTOSHIBA KK·Filed 2003·Granted Nov 11, 2008·0 cites·11 claims
- 3349US8458471B2Digital signature generation apparatus, digital signature verification apparatus, and key generation apparatusAKIYAMA KOICHIRO·Filed 2011·Granted Jun 4, 2013·0 cites·3 claims
- 3446US2005013440A1Reception management apparatus, broadcasting receiving device, information distributing device, and information distributing method and reception management programFiled 2004·Application pending·0 cites
- 3544US2009185680A1Encryption apparatus, decryption apparatus, key generation apparatus, and programAKIYAMA KOICHIRO·Filed 2009·Application pending·0 cites
- 3644US2015023496A1Pairing computation apparatus, pairing computation method, and computer program productTOSHIBA KK·Filed 2014·Application pending·0 cites
- 3744US2010329447A1Encryption apparatus, decryption apparatus, key generation apparatus, and programAKIYAMA KOICHIRO·Filed 2008·Application pending·0 cites
- 3841US2008019511A1Encryption apparatus, decryption apparatus, program, and methodAKIYAMA KOICHIRO·Filed 2007·Application pending·0 cites
- 3939US2006251247A1Encryption apparatus, decryption apparatus, key generation apparatus, program and method thereforAKIYAMA KOICHIRO·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →