Inventor · disambiguated record
Harunaga Hiwatari
Also filed as: HIWATARI HARUNAGA
22 granted patents·8 pending applications·36 citations·filing 2008–2022
92Inventor score
Files withSONY CORP11SAKUMOTO KOICHI8SHIBUTANI KYOJI4HIWATARI HARUNAGA3SONY SEMICONDUCTOR SOLUTIONS CORP2
Top patents by PatentIndex Score
30 records- 0180US8522033B2Authentication device, authentication method, program, and signature generation deviceSAKUMOTO KOICHI·Filed 2011·Granted Aug 27, 2013·5 cites·18 claims
- 0279US8959355B2Authentication device, authentication method, program, and signature generation deviceSONY CORP·Filed 2013·Granted Feb 17, 2015·4 cites·20 claims
- 0377US9270458B2Encryption processing device, encryption processing method, and programSHIBUTANI KYOJI·Filed 2012·Granted Feb 23, 2016·5 cites·16 claims
- 0475US9129122B2Signature verification apparatus, signature verification method, program, and recording mediumSAKUMOTO KOICHI·Filed 2012·Granted Sep 8, 2015·4 cites·7 claims
- 0575US8213609B2Key generating device, encrypting device, receiving device, key generating method, encrypting method, key processing method, and programKUSAKAWA MASAFUMI·Filed 2008·Granted Jul 3, 2012·7 cites·41 claims
- 0674US8826025B2Authentication device, authentication method, program, and signature generation deviceSAKUMOTO KOICHI·Filed 2013·Granted Sep 2, 2014·3 cites·14 claims
- 0768US9418245B2Encryption processing device, encryption processing method, and programSHIBUTANI KYOJI·Filed 2012·Granted Aug 16, 2016·2 cites·10 claims
- 0868US8433912B2Authentication device, authentication method, program, and signature generation deviceSAKUMOTO KOICHI·Filed 2011·Granted Apr 30, 2013·2 cites·16 claims
- 0967US11153068B2Encryption device, encryption method, decryption device and decryption methodSONY CORP·Filed 2017·Granted Oct 19, 2021·1 cites·14 claims
- 1066US9083507B2Data processing device, data processing method, and programSHIBUTANI KYOJI·Filed 2012·Granted Jul 14, 2015·2 cites·12 claims
- 1165US11269993B2Encryption device, encryption method, decryption device, and decryption methodSONY CORP·Filed 2018·Granted Mar 8, 2022·1 cites·15 claims
- 1250US2025013730A1Information processing device and information processing methodSONY SEMICONDUCTOR SOLUTIONS CORP·Filed 2022·Application pending·0 cites
- 1349US9602285B2Authentication device, authentication method, and programSONY CORP·Filed 2015·Granted Mar 21, 2017·0 cites·14 claims
- 1449US9123194B2Print medium, card creation method, and programSONY CORP·Filed 2013·Granted Sep 1, 2015·0 cites·11 claims
- 1549US9076000B2Authentication device, authentication method, and programSAKUMOTO KOICHI·Filed 2011·Granted Jul 7, 2015·0 cites·8 claims
- 1648US9516007B2Verifier and prover have an authentication protocol with challenge-response with the challenge from prover having identification of the verifierSONY CORP·Filed 2013·Granted Dec 6, 2016·0 cites·20 claims
- 1746US9672007B2Device for performing arithmetic operations of multivariate polynomials, control method, and programSONY CORP·Filed 2013·Granted Jun 6, 2017·0 cites·16 claims
- 1845US2022246538A1Circuit board, semiconductor apparatus, and electronic equipmentSONY SEMICONDUCTOR SOLUTIONS CORP·Filed 2019·Application pending·0 cites
- 1943US2014211940A1Information processing apparatus, information processing method, program, and recording mediumSAKUMOTO KOICHI·Filed 2012·Application pending·0 cites
- 2043US2014122899A1Information processing apparatus, information processing method, computer program, and information processing systemSONY CORP·Filed 2013·Application pending·0 cites
- 2141US9979549B2Information processing to perform authentication between a prover and a verifierSONY CORP·Filed 2013·Granted May 22, 2018·0 cites·12 claims
- 2241US8675867B2Key generation algorithm using secret polynomial over finite ring and transformationSAKUMOTO KOICHI·Filed 2010·Granted Mar 18, 2014·0 cites·18 claims
- 2341US2010119058A1Information processing apparatus, information processing method, and programMATSUDA SEIICHI·Filed 2009·Application pending·0 cites
- 2440US8983062B2Encryption processing device, encryption processing method, and programmeSHIBUTANI KYOJI·Filed 2012·Granted Mar 17, 2015·0 cites·15 claims
- 2540US2014068788A1Information processing apparatus, information processing system, information processing method, program and client terminalSONY CORP·Filed 2013·Application pending·0 cites
- 2638US2014075201A1Information processing device, information processing method, and programSONY CORP·Filed 2013·Application pending·0 cites
- 2737US10020945B2Information processing apparatus and to efficiently substitute coefficients of a multivariate polynomialSAKUMOTO KOICHI·Filed 2012·Granted Jul 10, 2018·0 cites·19 claims
- 2836US9031230B2Encryption processing device, encryption processing method, and programHIWATARI HARUNAGA·Filed 2011·Granted May 12, 2015·0 cites·11 claims
- 2935US9276735B2Information processing apparatus, signature generation apparatus, information processing method, signature generation method, and programHIWATARI HARUNAGA·Filed 2012·Granted Mar 1, 2016·0 cites·10 claims
- 3035US2014208110A1Information processing apparatus, signature generation apparatus, signature verification apparatus, information processing method, signature generation method, and signature verification methodHIWATARI HARUNAGA·Filed 2012·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Harunaga Hiwatari 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 →