Inventor · disambiguated record
Naoya Torii
Also filed as: TORII NAOYA
38 granted patents·3 pending applications·1,837 citations·filing 1988–2017
98Inventor score
Top patents by PatentIndex Score
41 records- 0190US5621794AMoving-picture encipherment method and system, and enciphered moving-picture decipherment method and systemFUJITSU LTD·Filed 1995·Granted Apr 15, 1997·130 cites·32 claims
- 0288US6118874AEncrypted data recovery method using split storage key and system thereofHITACHI LTD·Filed 1998·Granted Sep 12, 2000·255 cites·22 claims
- 0385US7639808B2Elliptic curve cryptosystem apparatus, elliptic curve cryptosystem method, elliptic curve cryptosystem program and computer readable recording medium storing the elliptic curve cryptosystem programFUJITSU LTD·Filed 2005·Granted Dec 29, 2009·14 cites·19 claims
- 0485US7536011B2Tamper-proof elliptic encryption with private keyFUJITSU LTD·Filed 2005·Granted May 19, 2009·15 cites·22 claims
- 0585US5917908AFile protection system, software utilization system using the file protection system and storage medium used in the software utilization systemFUJITSU LTD·Filed 1996·Granted Jun 29, 1999·44 cites·28 claims
- 0685US5313521AKey distribution protocol for file transfer in the local area networkFUJITSU LTD·Filed 1992·Granted May 17, 1994·155 cites·28 claims
- 0782US5499299AModular arithmetic operation systemFUJITSU LTD·Filed 1994·Granted Mar 12, 1996·101 cites·11 claims
- 0881US7386130B2Encryption secured against DPAFUJITSU LTD·Filed 2001·Granted Jun 10, 2008·33 cites·25 claims
- 0980US5935243ALicensee notification systemFUJITSU LTD·Filed 1996·Granted Aug 10, 1999·95 cites·14 claims
- 1079US5838791AEncoder and decoderFUJITSU LTD·Filed 1995·Granted Nov 17, 1998·62 cites·10 claims
- 1179US5623548ATransformation pattern generating device and encryption function deviceFUJITSU LTD·Filed 1995·Granted Apr 22, 1997·119 cites·16 claims
- 1275US5584022AEnciphered file sharing methodFUJITSU LTD·Filed 1993·Granted Dec 10, 1996·66 cites·12 claims
- 1373US7158638B2Encryption circuitFUJITSU LTD·Filed 2002·Granted Jan 2, 2007·22 cites·20 claims
- 1473US6266421B1Key recovery system and key recovery methodHITACHI LTD·Filed 1998·Granted Jul 24, 2001·91 cites·10 claims
- 1572US5325433AEncryption communication systemFUJITSU LTD·Filed 1993·Granted Jun 28, 1994·64 cites·16 claims
- 1671US7065788B2Encryption operating apparatus and method having side-channel attack resistanceFUJITSU LTD·Filed 2002·Granted Jun 20, 2006·16 cites·35 claims
- 1771US6185308B1Key recovery systemFUJITSU LTD·Filed 1998·Granted Feb 6, 2001·77 cites·35 claims
- 1871US5832083AMethod and device for utilizing data contentFUJITSU LTD·Filed 1995·Granted Nov 3, 1998·73 cites·43 claims
- 1971US4959863ASecret speech equipmentFUJITSU LTD·Filed 1988·Granted Sep 25, 1990·27 cites·15 claims
- 2067US6956951B2Extended key preparing apparatus, extended key preparing method, recording medium and computer programFUJITSU LTD·Filed 2001·Granted Oct 18, 2005·12 cites·22 claims
- 2161US5822771ASystem for management of software employing memory for processing unit with regulatory information, for limiting amount of use and number of backup copies of softwareFUJITSU LTD·Filed 1997·Granted Oct 13, 1998·33 cites·12 claims
- 2258US7792893B2Device and method for calculating conversion parameter of montgomery modular multiplication and program thereforFUJITSU LTD·Filed 2005·Granted Sep 7, 2010·1 cites·4 claims
- 2356US6330332B1Prime number generation apparatus B-smoothness judgement apparatus and computer memory productFUJITSU LTD·Filed 1998·Granted Dec 11, 2001·38 cites·21 claims
- 2455US6415310B1Remainder calculating method, modular-multiplication method, remainder calculating apparatus, modular-multiplication apparatus and recording mediumFUJITSU LTD·Filed 1999·Granted Jul 2, 2002·27 cites·20 claims
- 2555US6385726B1Software license protection via cryptographyFUJITSU LTD·Filed 1997·Granted May 7, 2002·29 cites·20 claims
- 2655US5761651ASoftware charging system and software data utilization permitting deviceFUJITSU LTD·Filed 1995·Granted Jun 2, 1998·84 cites·24 claims
- 2752US5761308ASystem for refunding payment for softwareFUJITSU LTD·Filed 1996·Granted Jun 2, 1998·74 cites·11 claims
- 2850US7403965B2Encryption/decryption system for calculating effective lower bits of a parameter for Montgomery modular multiplicationFUJITSU LTD·Filed 2004·Granted Jul 22, 2008·1 cites·17 claims
- 2950US6067640ASystem for management of software employing memory for processing unit with regulatory information, for limiting amount of use and number of backup copies of softwareFUJITSU LTD·Filed 1998·Granted May 23, 2000·19 cites·17 claims
- 3048US8078661B2Multiple-word multiplication-accumulation circuit and montgomery modular multiplication-accumulation circuitMUKAIDA KENJI·Filed 2004·Granted Dec 13, 2011·3 cites·8 claims
- 3146US5953416AData processing apparatusFUJITSU LTD·Filed 1997·Granted Sep 14, 1999·17 cites·14 claims
- 3244US10686768B2Apparatus and method for controlling profile data deliveryFUJITSU LTD·Filed 2017·Granted Jun 16, 2020·0 cites·5 claims
- 3344US9793895B2Electronic circuit, latch circuit, and external action detecting circuitFUJITSU LTD·Filed 2016·Granted Oct 17, 2017·0 cites·13 claims
- 3444US6272225B1Key recovery condition encryption and decryption apparatusesNEC CORP·Filed 1998·Granted Aug 7, 2001·18 cites·26 claims
- 3543US2007177721A1Tamper-proof elliptic encryption with private keyFUJITSU LTD·Filed 2005·Application pending·0 cites
- 3642US10270768B2Communication system, communication method, and communication deviceFUJITSU LTD·Filed 2017·Granted Apr 23, 2019·0 cites·7 claims
- 3741US2002021801A1Computing apparatus using an SPN structure in an F function and a computation method thereofFiled 2001·Application pending·0 cites
- 3840US5065430AVoice band splitting scramblerFUJITSU LTD·Filed 1988·Granted Nov 12, 1991·6 cites·26 claims
- 3939US6173390B1Storage medium driving device, storage medium and data protecting methodFUJITSU LTD·Filed 1997·Granted Jan 9, 2001·11 cites·18 claims
- 4036US2016246994A1Information collection apparatus and methodFUJITSU LTD·Filed 2016·Application pending·0 cites
- 4132US6829592B1Data protection system, data preparation device, and data working deviceFUJITSU LTD·Filed 1997·Granted Dec 7, 2004·5 cites·23 claims
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