Izu; Tetsuya

Patent Applications and Registrations

Patent applications and USPTO patent grants for Izu; Tetsuya.The latest application filed is for "computer-readable recording medium storing information processing program, information processing method, and information processing device".

Company Profile

0.34.45

Izu; Tetsuya - Ichikawa JP
Izu; Tetsuya - London GB
Izu; Tetsuya - Kawasaki N/A JP
Izu; Tetsuya - Kawasaki-shi JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Verification method, information processing device, and non-transitory computer-readable storage medium for storing verification program Grant 11,451,403 - Kojima , et al. September 20, 2	2022-09-20
Computer-readable Recording Medium Storing Information Processing Program, Information Processing Method, And Information Processing Device App 20220222042 - YAMAGUCHI; Jumpei ; et al.	2022-07-14
Verification Method, Information Processing Device, And Non-transitory Computer-readable Storage Medium For Storing Verification Program App 20210226801 - Kojima; Rikuhiro ; et al.	2021-07-22
Apparatus and method for generating physical random numbers Grant 9,772,819 - Kokubo , et al. September 26, 2	2017-09-26
Communication device, system, and control method Grant 9,760,717 - Sakemi , et al. September 12, 2	2017-09-12
Method and apparatus for cryptographic processing Grant 9,712,499 - Sakemi , et al. July 18, 2	2017-07-18
Node device, communication method and network system Grant 9,614,822 - Sakemi , et al. April 4, 2	2017-04-04
Node device and communication control method Grant 9,510,216 - Izu , et al. November 29, 2	2016-11-29
Authentication method, authentication device, and system Grant 9,489,501 - Sakemi , et al. November 8, 2	2016-11-08
Authentication device, system and method Grant 9,386,017 - Sakemi , et al. July 5, 2	2016-07-05
Node, communication method, and communication system Grant 9,319,923 - Izu , et al. April 19, 2	2016-04-19
Communication method, node, and network system Grant 9,203,800 - Izu , et al. December 1, 2	2015-12-01
Key Transmitting Method And Key Transmitting System App 20150281187 - Ogura; Takao ; et al.	2015-10-01
Method And Apparatus For Cryptographic Processing App 20150281188 - SAKEMI; Yumi ; et al.	2015-10-01
Data Communication Method And Data Communication Apparatus App 20150188704 - TAKENAKA; Masahiko ; et al.	2015-07-02
Information processing apparatus, tampering detection apparatus, information processing method, tampering detection method, and computer product Grant 9,071,420 - Yajima , et al. June 30, 2	2015-06-30
Relay Apparatus, Method, And System App 20150163053 - Izu; Tetsuya ; et al.	2015-06-11
Apparatus And Method For Generating Physical Random Numbers App 20150149519 - KOKUBO; Hirotaka ; et al.	2015-05-28
Node Device, Communication Method And Network System App 20150134964 - SAKEMI; Yumi ; et al.	2015-05-14
Node Device And Communication Method App 20150134963 - IZU; Tetsuya ; et al.	2015-05-14
Key setting method, node, server, and network system Grant 9,032,203 - Takenaka , et al. May 12, 2	2015-05-12
Authentication Method, Authentication Device, And System App 20150082405 - SAKEMI; Yumi ; et al.	2015-03-19
Authentication Device, System And Method App 20140351597 - Sakemi; Yumi ; et al.	2014-11-27
Communication Device, System, And Control Method App 20140351950 - Sakemi; Yumi ; et al.	2014-11-27
Network System, Method Of Controlling Network System, And Node Device App 20140348000 - IZU; Tetsuya ; et al.	2014-11-27
Network System, Node Device, And Method Of Controlling Network System App 20140334383 - Sakemi; Yumi ; et al.	2014-11-13
Node, Communication Method, And Communication System App 20140286171 - Izu; Tetsuya ; et al.	2014-09-25
Node Device And Communication Control Method App 20140247786 - IZU; Tetsuya ; et al.	2014-09-04
Information Processing Apparatus, Tampering Detection Apparatus, Information Processing Method, Tampering Detection Method, And Computer Product App 20140169555 - Yajima; Jun ; et al.	2014-06-19
Key setting method, node, and network system Grant 8,732,454 - Furukawa , et al. May 20, 2	2014-05-20
Key setting method, node, and network system Grant 8,719,563 - Kojima , et al. May 6, 2	2014-05-06
Document verifying apparatus, document verifying method, and computer product Grant 8,719,578 - Izu , et al. May 6, 2	2014-05-06
Communication Method, Node, And Network System App 20130312082 - IZU; Tetsuya ; et al.	2013-11-21
Key Setting Method, Node, Server, And Network System App 20130290701 - TAKENAKA; Masahiko ; et al.	2013-10-31
Data processing apparatus and digital signature method Grant 8,533,483 - Izu , et al. September 10, 2	2013-09-10
Key Setting Method, Node, And Network System App 20130138949 - FURUKAWA; Kazuyoshi ; et al.	2013-05-30
Key Setting Method, Node, And Network System App 20130138950 - KOJIMA; Hisashi ; et al.	2013-05-30
Digital signature method, program, and apparatus Grant 8,452,973 - Izu , et al. May 28, 2	2013-05-28
Apparatus, method, and program for digital signature Grant 8,433,913 - Takenaka , et al. April 30, 2	2013-04-30
Electronic signature method, apparatus, and recording medium having electronic signature program recorded thereon Grant 8,433,910 - Takenaka , et al. April 30, 2	2013-04-30
Communication Device, Recording Medium, And Method Thereof App 20130070925 - Yamada; Kenji ; et al.	2013-03-21
Cryptographic device having tamper resistance to power analysis attack Grant 8,391,477 - Izu , et al. March 5, 2	2013-03-05
Recording medium, digital information verification apparatus, and digital information verification method Grant 8,335,922 - Yoshioka , et al. December 18, 2	2012-12-18
Methods and apparatus for verifying electronic mail Grant 8,312,266 - Yoshioka , et al. November 13, 2	2012-11-13
Method and apparatus for digital signature authentication, and computer product Grant 8,037,312 - Takenaka , et al. October 11, 2	2011-10-11
Cryptographic Processing Apparatus And Method App 20110194693 - IZU; Tetsuya ; et al.	2011-08-11
Elliptic curve cryptosystem apparatus, storage medium storing elliptic curve cryptosystem program, and elliptic curve cryptosystem arithmetic method Grant 7,970,131 - Izu , et al. June 28, 2	2011-06-28
Contents Processing Device And Contents Partial Integrity Assurance Method App 20110078458 - FURUKAWA; Kazuyoshi ; et al.	2011-03-31
Data Processing Apparatus And Digital Signature Method App 20110072278 - IZU; Tetsuya ; et al.	2011-03-24
Digital document management system, digital document management method, and digital document management program Grant 7,900,050 - Izu , et al. March 1, 2	2011-03-01
Elliptic Curve Arithmetic Processing Unit And Elliptic Curve Arithmetic Processing Program And Method App 20100232601 - ITOH; Kouichi ; et al.	2010-09-16
Digital Signature Method, Program, And Apparatus App 20100185867 - Izu; Tetsuya ; et al.	2010-07-22
Apparatus, Method, And Program For Digital Signature App 20100169653 - Takenaka; Masahiko ; et al.	2010-07-01
Storage Media Storing Electronic Document Management Program, Electronic Document Management Apparatus, And Method To Manage Electronic Document App 20100005306 - Izu; Tetsuya ; et al.	2010-01-07
Elliptic curve cryptosystem apparatus, elliptic curve cryptosystem method, elliptic curve cryptosystem program and computer readable recording medium storing the elliptic curve cryptosystem program Grant 7,639,808 - Izu , et al. December 29, 2	2009-12-29
Electronic document managing apparatus App 20090290189 - Izu; Tetsuya ; et al.	2009-11-26
Document Verifying Apparatus, Document Verifying Method, And Computer Product App 20090265558 - IZU; Tetsuya ; et al.	2009-10-22
Document verification apparatus, document verification method, and computer product App 20090210715 - Izu; Tetsuya ; et al.	2009-08-20
Elliptic Curve Cryptosystem Apparatus, Storage Medium Storing Elliptic Curve Cryptosystem Program And Elliptic Curve Cryptosystem Arithmetic Method App 20090207997 - IZU; Tetsuya ; et al.	2009-08-20
Electronic Signature Method, Apparatus, And Recording Medium Having Electronic Signature Program Recorded Thereon App 20090193256 - TAKENAKA; Masahiko ; et al.	2009-07-30
Tamper-proof elliptic encryption with private key Grant 7,536,011 - Takenaka , et al. May 19, 2	2009-05-19
Elliptic curve cryptosystem apparatus, storage medium storing elliptic curve cryptosystem program, and elliptic curve cryptosystem arithmetic method Grant 7,505,587 - Izu , et al. March 17, 2	2009-03-17
Methods And Apparatus For Verifying Electronic Mail App 20090013379 - Yoshioka; Takashi ; et al.	2009-01-08
Method and apparatus for digital signature authentication, and computer product App 20080256362 - Takenaka; Masahiko ; et al.	2008-10-16
Recording medium, digital information verification apparatus, and digital information verification method App 20080082829 - Yoshioka; Takashi ; et al.	2008-04-03
Cryptographic Device Having Tamper Resistance To Power Analysis Attack App 20080025500 - Izu; Tetsuya ; et al.	2008-01-31
Tamper-proof elliptic encryption with private key App 20070177721 - Itoh; Kouichi ; et al.	2007-08-02
Digital document management system, digital document management method, and digital document management program App 20070168671 - Takenaka; Masahiko ; et al.	2007-07-19
Digital document management system, digital document management method, and digital document management program App 20070168672 - Izu; Tetsuya ; et al.	2007-07-19
Elliptic curve cryptosystem apparatus, elliptic curve cryptosystem method, elliptic curve cryptosystem program and computer readable recording medium storing the elliptic curve cryptosystem program App 20060093137 - Izu; Tetsuya ; et al.	2006-05-04
Tamper-proof elliptic encryption with private key App 20050152541 - Takenaka, Masahiko ; et al.	2005-07-14
Elliptic curve cryptosystem apparatus, storage medium storing elliptic curve cryptosystem program, and elliptic curve cryptosystem arithmetic method App 20030123656 - Izu, Tetsuya ; et al.	2003-07-03

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