Inventor
TORII NAOYA
JP38 patents
⚠️ This page may combine multiple inventors who share the name “TORII NAOYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
34 patentsUS5935243AAug 10, 1999
Licensee notification system
FUJITSU LTD95 citations98
US5623548AApr 22, 1997
Transformation pattern generating device and encryption function device
FUJITSU LTD119 citations98
US5621794AApr 15, 1997
Moving-picture encipherment method and system, and enciphered moving-picture decipherment method and system
FUJITSU LTD130 citations98
US5838791ANov 17, 1998
Encoder and decoder
FUJITSU LTD62 citations96
US5832083ANov 3, 1998
Method and device for utilizing data content
FUJITSU LTD73 citations96
US5761651AJun 2, 1998
Software charging system and software data utilization permitting device
FUJITSU LTD84 citations96
US5584022ADec 10, 1996
Enciphered file sharing method
FUJITSU LTD66 citations96
US5499299AMar 12, 1996
Modular arithmetic operation system
FUJITSU LTD101 citations96
US5325433AJun 28, 1994
Encryption communication system
FUJITSU LTD64 citations96
US6185308B1Feb 6, 2001
Key recovery system
FUJITSU LTD77 citations95
US5761308AJun 2, 1998
System for refunding payment for software
FUJITSU LTD74 citations95
US5313521AMay 17, 1994
Key distribution protocol for file transfer in the local area network
FUJITSU LTD155 citations95
US7386130B2Jun 10, 2008
Encryption secured against DPA
FUJITSU LTD33 citations93
US6415310B1Jul 2, 2002
Remainder calculating method, modular-multiplication method, remainder calculating apparatus, modular-multiplication apparatus and recording medium
FUJITSU LTD27 citations93
US6385726B1May 7, 2002
Software license protection via cryptography
FUJITSU LTD29 citations93
US6067640AMay 23, 2000
System for management of software employing memory for processing unit with regulatory information, for limiting amount of use and number of backup copies of software
FUJITSU LTD19 citations93
US5822771AOct 13, 1998
System for management of software employing memory for processing unit with regulatory information, for limiting amount of use and number of backup copies of software
FUJITSU LTD33 citations93
US6330332B1Dec 11, 2001
Prime number generation apparatus B-smoothness judgement apparatus and computer memory product
FUJITSU LTD38 citations92
US5917908AJun 29, 1999
File protection system, software utilization system using the file protection system and storage medium used in the software utilization system
FUJITSU LTD44 citations92
US4959863ASep 25, 1990
Secret speech equipment
FUJITSU LTD27 citations92
US7158638B2Jan 2, 2007
Encryption circuit
FUJITSU LTD22 citations90
US7639808B2Dec 29, 2009
Elliptic curve cryptosystem apparatus, elliptic curve cryptosystem method, elliptic curve cryptosystem program and computer readable recording medium storing the elliptic curve cryptosystem program
FUJITSU LTD14 citations84
US7536011B2May 19, 2009
Tamper-proof elliptic encryption with private key
FUJITSU LTD15 citations84
US7065788B2Jun 20, 2006
Encryption operating apparatus and method having side-channel attack resistance
FUJITSU LTD16 citations84
US6956951B2Oct 18, 2005
Extended key preparing apparatus, extended key preparing method, recording medium and computer program
FUJITSU LTD12 citations84
US5953416ASep 14, 1999
Data processing apparatus
FUJITSU LTD17 citations84
US6173390B1Jan 9, 2001
Storage medium driving device, storage medium and data protecting method
FUJITSU LTD11 citations74
US6829592B1Dec 7, 2004
Data protection system, data preparation device, and data working device
FUJITSU LTD5 citations62
US5065430ANov 12, 1991
Voice band splitting scrambler
FUJITSU LTD6 citations62
US7792893B2Sep 7, 2010
Device and method for calculating conversion parameter of montgomery modular multiplication and program therefor
FUJITSU LTD1 citations52
US7403965B2Jul 22, 2008
Encryption/decryption system for calculating effective lower bits of a parameter for Montgomery modular multiplication
FUJITSU LTD1 citations52
US9793895B2Oct 17, 2017
Electronic circuit, latch circuit, and external action detecting circuit
FUJITSU LTD0 citations51
US10270768B2Apr 23, 2019
Communication system, communication method, and communication device
FUJITSU LTD0 citations41
US10686768B2Jun 16, 2020
Apparatus and method for controlling profile data delivery
FUJITSU LTD0 citations40