Assignee
TAKASHIMA KATSUYUKI
JP·14 granted patents·1 pending application·103 citations·filing 2004–2013
Top patents by PatentIndex Score
15 records- 0193US8290146B2Ciphertext generating apparatus, cryptographic communication system, and group parameter generating apparatusTAKASHIMA KATSUYUKI·Filed 2007·Granted Oct 16, 2012·36 cites·15 claims
- 0287US8938623B2Cryptographic processing system, key generation device, encryption device, decryption device, cryptographic processing method, and cryptographic processing programTAKASHIMA KATSUYUKI·Filed 2011·Granted Jan 20, 2015·12 cites·8 claims
- 0387US8111826B2Apparatus for generating elliptic curve cryptographic parameter, apparatus for processing elliptic curve cryptograph, program for generating elliptic curve cryptographic parameter, and program for processing elliptic cyptographTAKASHIMA KATSUYUKI·Filed 2006·Granted Feb 7, 2012·19 cites·44 claims
- 0486US8913742B2Cryptographic processing system, key generation device, encryption device, decryption device, signature processing system, signature device, and verification deviceTAKASHIMA KATSUYUKI·Filed 2011·Granted Dec 16, 2014·11 cites·15 claims
- 0582US8559638B2Cryptographic processing systemTAKASHIMA KATSUYUKI·Filed 2010·Granted Oct 15, 2013·6 cites·47 claims
- 0681US8458479B2Verification apparatusTAKASHIMA KATSUYUKI·Filed 2008·Granted Jun 4, 2013·10 cites·19 claims
- 0770US9183411B2Cryptographic processing system, key generation device, encryption device, decryption device, cryptographic processing method, and cryptographic processing program utilizing attribute information for generation of a key for decryption or encryptionTAKASHIMA KATSUYUKI·Filed 2011·Granted Nov 10, 2015·3 cites·8 claims
- 0870US8577030B2Cryptographic processing system, key generation device, key delegation device, encryption device, decryption device, cryptographic processing method, and cryptographic processing programTAKASHIMA KATSUYUKI·Filed 2010·Granted Nov 5, 2013·3 cites·5 claims
- 0965US9106408B2Signature processing system, key generation device, signature device, verification device, signature processing method, and signature processing programTAKASHIMA KATSUYUKI·Filed 2011·Granted Aug 11, 2015·2 cites·10 claims
- 1060US9385867B2Cryptographic processing system, key generation device, encryption device, decryption device, key delegation device, cryptographic processing method, and cryptographic processing programTAKASHIMA KATSUYUKI·Filed 2011·Granted Jul 5, 2016·1 cites·12 claims
- 1147US9203622B2Cryptographic processing system, cryptographic processing method, cryptograhpic processing program, and key generation deviceTAKASHIMA KATSUYUKI·Filed 2012·Granted Dec 1, 2015·0 cites·15 claims
- 1247US8401179B2Encryption parameter setting apparatus, key generation apparatus, cryptographic system, program, encryption parameter setting method, and key generation methodTAKASHIMA KATSUYUKI·Filed 2008·Granted Mar 19, 2013·0 cites·23 claims
- 1345US2007053506A1Elliptic curve encryption processor, processing method of the processor using elliptic curves, and program for causing a computer to execute point scalar multiplication on elliptic curvesTAKASHIMA KATSUYUKI·Filed 2004·Application pending·0 cites
- 1444US9407438B2Cryptographic system, cryptographic method, and cryptographic programTAKASHIMA KATSUYUKI·Filed 2013·Granted Aug 2, 2016·0 cites·11 claims
- 1539US8929542B2Cryptographic processing system, key generation device, key delegation device, encryption device, decryption device, cryptographic processing method, and cryptographic processing programTAKASHIMA KATSUYUKI·Filed 2010·Granted Jan 6, 2015·0 cites·6 claims
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