Inventor · disambiguated record
Kazuhiko Minematsu
Also filed as: MINEMATSU KAZUHIKO
25 granted patents·15 pending applications·81 citations·filing 2000–2024
93Inventor score
Top patents by PatentIndex Score
40 records- 0186US6700993B1System and method for on-line digital watermark detectionNEC CORP·Filed 2000·Granted Mar 2, 2004·45 cites·16 claims
- 0279US9787475B2Device, method, and program for message authentication tag generationNEC CORP·Filed 2014·Granted Oct 10, 2017·5 cites·7 claims
- 0378US9432181B2Device, method, and program for format-preserving encryption, and device, method, and program for decryptionNEC CORP·Filed 2013·Granted Aug 30, 2016·5 cites·9 claims
- 0475US10341088B2Authentic encryption device, authenticated encryption method, and program for authenticated encryptionNEC CORP·Filed 2014·Granted Jul 2, 2019·4 cites·10 claims
- 0574US11750398B2MAC tag list generation apparatus, MAC tag list verification apparatus, aggregate MAC verification system and methodNEC CORP·Filed 2018·Granted Sep 5, 2023·2 cites·19 claims
- 0673US10623176B2Authentication encryption method, authentication decryption method, and information-processing deviceNEC CORP·Filed 2015·Granted Apr 14, 2020·2 cites·12 claims
- 0773US8589688B2Message authentication device, message authentication method, message authentication program and storage medium thereforMINEMATSU KAZUHIKO·Filed 2006·Granted Nov 19, 2013·6 cites·12 claims
- 0869US8577032B2Common key block encryption device, common key block encryption method, and programMINEMATSU KAZUHIKO·Filed 2008·Granted Nov 5, 2013·4 cites·21 claims
- 0967US11251965B2Authentication tag generation apparatus, authentication tag verification apparatus, method and programNEC CORP·Filed 2017·Granted Feb 15, 2022·1 cites·19 claims
- 1066US8189770B2Tweakable block encryption apparatus, method, and programMINEMATSU KAZUHIKO·Filed 2007·Granted May 29, 2012·3 cites·12 claims
- 1163US10355862B2MAC tag list generating apparatus, MAC tag list verifying apparatus, MAC tag list generating method, MAC tag list verifying method and program recording mediumNEC CORP·Filed 2015·Granted Jul 16, 2019·1 cites·6 claims
- 1262US8526602B2Adjustment-value-attached block cipher apparatus, cipher generation method and recording mediumMINEMATSU KAZUHIKO·Filed 2009·Granted Sep 3, 2013·2 cites·9 claims
- 1360US8891758B2Block encryption device and method and computer programMINEMATSU KAZUHIKO·Filed 2010·Granted Nov 18, 2014·1 cites·9 claims
- 1457US2025070955A1Information processing apparatus, method, and non-transitory computer readable mediumNEC CORP·Filed 2024·Application pending·0 cites
- 1551US11728968B2Authenticated encryption device, authenticated decryption device, authenticated encryption method, authenticated decryption method, authenticated encryption program, and authenticated decryption programNEC CORP·Filed 2018·Granted Aug 15, 2023·0 cites·20 claims
- 1651US2025038951A1Encryption device, decryption device, cryptographic system, encryption method, and decryption methodNEC CORP·Filed 2024·Application pending·0 cites
- 1750US2025365130A1Authenticated encryption apparatus, authenticated decryption apparatus, authenticated encryption system, method, and non-transitory computer readable mediumNEC CORP·Filed 2024·Application pending·0 cites
- 1849US11463235B2Encryption device, encryption method, program, decryption device, and decryption methodNEC CORP·Filed 2018·Granted Oct 4, 2022·0 cites·10 claims
- 1947US2011150225A1Encryption devices for block having double block length, decryption devices, encryption method, decryption method, and programs thereofMINEMATSU KAZUHIKO·Filed 2009·Application pending·0 cites
- 2046US11327719B2Random number generation method selecting system, random number generation method selecting method, and random number generation method selecting programNEC CORP·Filed 2017·Granted May 10, 2022·0 cites·8 claims
- 2146US2025015972A1Communication system, transmission apparatus, reception apparatus, and method and program thereofNEC CORP·Filed 2021·Application pending·0 cites
- 2245US11824993B2MAC tag list generation apparatus, MAC tag list verification apparatus, method, and programNEC CORP·Filed 2019·Granted Nov 21, 2023·0 cites·18 claims
- 2345US11216533B2Inverse-image sampling device, inverse-image sampling method, and inverse-image sampling programNEC CORP·Filed 2017·Granted Jan 4, 2022·0 cites·20 claims
- 2443US9515830B2Universal hash function computing device, method and programNEC CORP·Filed 2013·Granted Dec 6, 2016·0 cites·4 claims
- 2543US2023297693A1Information processing apparatus, information processing method, and non-transitory computer readable medium storing programNEC CORP·Filed 2020·Application pending·0 cites
- 2642US2025139296A1Data storage apparatus, data storage method, and programNEC CORP·Filed 2022·Application pending·0 cites
- 2742US2008253561A1Common-Key Block Encryption Device Common-Key Block Encryption Method, and Common-Key Block Encryption ProgramNEC CORP·Filed 2005·Application pending·0 cites
- 2841US11579845B2Random number generation device, random number generation method, encryption device, and non-transitory recording mediumNEC CORP·Filed 2017·Granted Feb 14, 2023·0 cites·10 claims
- 2941US11336456B2Message authentication system, apparatus, and message verification methodNEC CORP·Filed 2016·Granted May 17, 2022·0 cites·9 claims
- 3041US11257399B2Decoding apparatus, decoding method, and programNEC CORP·Filed 2016·Granted Feb 22, 2022·0 cites·12 claims
- 3141US8891761B2Block encryption device, decryption device, encrypting method, decrypting method and programMINEMATSU KAZUHIKO·Filed 2012·Granted Nov 18, 2014·0 cites·12 claims
- 3241US2002154772A1Copyright protection system and method thereofFiled 2002·Application pending·0 cites
- 3341US2014317407A1Incremental mac tag generation device, method, and program, and message authentication deviceNEC CORP·Filed 2012·Application pending·0 cites
- 3437US8543820B2Tag generation apparatus, tag verification apparatus, communication system, tag generation method, tag verification method, and recording mediumMINEMATSU KAZUHIKO·Filed 2010·Granted Sep 24, 2013·0 cites·18 claims
- 3537US2012314857A1Block encryption device, block decryption device, block encryption method, block decryption method and programMINEMATSU KAZUHIKO·Filed 2011·Application pending·0 cites
- 3637US2020382299A1Random number generation system, method for generating random number, and random number generation programNEC CORP·Filed 2017·Application pending·0 cites
- 3735US2020319853A1Random number generation system, random number generation method, and random number generation programNEC CORP·Filed 2017·Application pending·0 cites
- 3834US12328397B2Memory processing apparatus, memory verification apparatus, memory updating apparatus, memory protection system, method, and computer readable mediumNEC CORP·Filed 2020·Granted Jun 10, 2025·0 cites·11 claims
- 3933US2014137211A1Apparatus-specific information generation device, apparatus-specific information generation method, terminal apparatus, and authentication systemMINEMATSU KAZUHIKO·Filed 2012·Application pending·0 cites
- 4030US2023139104A1Authenticated encryption apparatus, authenticated decryption apparatus, authenticated encryption system, method, and computer readable mediumNEC CORP·Filed 2020·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Kazuhiko Minematsu files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →