Inventor · disambiguated record
Ken Naganuma
Also filed as: NAGANUMA KEN
15 granted patents·9 pending applications·90 citations·filing 2010–2023
90Inventor score
Top patents by PatentIndex Score
24 records- 0196US10489604B2Searchable encryption processing system and searchable encryption processing methodHITACHI LTD·Filed 2015·Granted Nov 26, 2019·38 cites·13 claims
- 0291US9135820B2Communication system, vehicle-mounted terminal, roadside deviceRENESAS ELECTRONICS CORP·Filed 2014·Granted Sep 15, 2015·15 cites·4 claims
- 0383US9432197B2Wireless communications device and authentication processing methodNAGANUMA KEN·Filed 2011·Granted Aug 30, 2016·10 cites·12 claims
- 0482US12321470B2Data management system, data management method, and non-transitory computer readable mediumHITACHI LTD·Filed 2022·Granted Jun 3, 2025·2 cites·14 claims
- 0579US9275250B2Searchable encryption processing systemYOSHINO MASAYUKI·Filed 2011·Granted Mar 1, 2016·7 cites·4 claims
- 0677US8819418B2Communication system, vehicle-mounted terminal, roadside deviceANDO ERIKO·Filed 2011·Granted Aug 26, 2014·9 cites·8 claims
- 0772US11018876B2Signature verification system, signature verification method, and storage mediumHITACHI LTD·Filed 2017·Granted May 25, 2021·2 cites·15 claims
- 0869US9276734B2Confidential computation system, confidential computation method, and confidential computation programNAGANUMA KEN·Filed 2011·Granted Mar 1, 2016·3 cites·5 claims
- 0967US8165601B2Positional information systemNAGANUMA KEN·Filed 2010·Granted Apr 24, 2012·3 cites·9 claims
- 1065US9601016B2Communication system, vehicle-mounted terminal, roadside deviceRENESAS ELECTRONICS CORP·Filed 2015·Granted Mar 21, 2017·1 cites·8 claims
- 1153US12386727B2Method and apparatus for bug bounty system for blockchainHITACHI LTD·Filed 2023·Granted Aug 12, 2025·0 cites·18 claims
- 1249US2019228413A1Auditing equipment, anonymous remittance method with audit function, and storage mediumHITACHI LTD·Filed 2017·Application pending·0 cites
- 1347US11184163B2Value comparison server, value comparison encryption system, and value comparison methodHITACHI LTD·Filed 2019·Granted Nov 23, 2021·0 cites·11 claims
- 1446US2017322977A1Method for retrieving encrypted graph, system for retrieving encrypted graph, and computerHITACHI LTD·Filed 2014·Application pending·0 cites
- 1543US11295635B2Data processing system and data processing methodHITACHI LTD·Filed 2015·Granted Apr 5, 2022·0 cites·16 claims
- 1643US11120143B2Data analysis server, data analysis system, and data analysis methodHITACHI LTD·Filed 2019·Granted Sep 14, 2021·0 cites·9 claims
- 1742US11971998B2Data comparison device, data comparison system, and data comparison methodHITACHI LTD·Filed 2020·Granted Apr 30, 2024·0 cites·9 claims
- 1842US2017039487A1Support vector machine learning system and support vector machine learning methodHITACHI LTD·Filed 2014·Application pending·0 cites
- 1942US2019260715A1Computer system, connection apparatus, and processing method using transactionHITACHI LTD·Filed 2019·Application pending·0 cites
- 2041US2024259192A1Data management system, data management method, and non-transitory recording mediumHITACHI LTD·Filed 2022·Application pending·0 cites
- 2140US2015288703A1Data possession verification system and methodHITACHI LTD·Filed 2012·Application pending·0 cites
- 2237US2019012469A1Data processing method and data processing systemHITACHI LTD·Filed 2016·Application pending·0 cites
- 2335US2018048467A1Key Generator, Computer System, and Encryption Statistical Processing MethodHITACHI LTD·Filed 2016·Application pending·0 cites
- 2433US2017308580A1Data Aggregation/Analysis System and Method ThereforHITACHI LTD·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →