| Patent | Date |
|---|
Forwarding Device, Key Management Server Device, Communication System, Forwarding Method, And Computer Program Product
App 20220150059 - TANAKA; Yasuyuki ; et al. | 2022-05-12 |
Communication Device, Computer Program Product, And Communication System
App 20220131689 - ITO; Masashi ; et al. | 2022-04-28 |
Quantum communication device, quantum communication system, and quantum communication method
Grant 11,265,157 - Doi , et al. March 1, 2 | 2022-03-01 |
Communication System, Key Management Server Device, Router, And Computer Program Product
App 20220029797 - TANAKA; Yasuyuki ; et al. | 2022-01-27 |
Application-key Management System, Application-key Management Device, Application-key Management Method, And Computer Program Product
App 20210409202 - DOI; Kazuaki ; et al. | 2021-12-30 |
Quantum Cryptographic Device, Quantum Cryptographic Communication Fee Calulation System, And Quantum Cryptographic Communication Fee Calculation Method
App 20210328784 - DOI; Kazuaki ; et al. | 2021-10-21 |
Key generation device, key generation method, and computer program product
Grant 11,115,198 - Takahashi , et al. September 7, 2 | 2021-09-07 |
Communication Device, Communication Method, And Communication Method For Performing Communication Using Shared Quantum Key
App 20210194683 - TANIZAWA; Yoshimichi | 2021-06-24 |
Communication device, communication method, and communication method for performing communication using shared quantum key
Grant 10,979,220 - Tanizawa April 13, 2 | 2021-04-13 |
Communication device, communication system, and communication method allocating shared keys to plural channels
Grant 10,630,464 - Tanizawa | 2020-04-21 |
Communication device, communication method, and communication system
Grant 10,623,180 - Tanizawa | 2020-04-14 |
Key Generation Device, Key Generation Method, And Computer Program Product
App 20200092089 - TAKAHASHI; Ririka ; et al. | 2020-03-19 |
Transmission device, multi-quantum communication system, and multi-quantum communication method
Grant 10,567,089 - Murakami , et al. Feb | 2020-02-18 |
Communication device, communication system, and communication method
Grant 10,439,807 - Tanizawa , et al. O | 2019-10-08 |
Quantum key distribution device, quantum key distribution system, and quantum key distribution method
Grant 10,348,492 - Tanizawa , et al. July 9, 2 | 2019-07-09 |
Communication device, quantum key distribution system, quantum key distribution method, and computer program product
Grant 10,341,097 - Takahashi , et al. | 2019-07-02 |
Quantum key distribution device, quantum key distribution system, and quantum key distribution method
Grant 10,291,400 - Tanizawa | 2019-05-14 |
Communication system, communication apparatus, communication method, and computer program product
Grant 10,291,590 - Tanizawa , et al. | 2019-05-14 |
Communication Apparatus, Communication Method, And Computer Program Product
App 20190074961 - TANIZAWA; Yoshimichi | 2019-03-07 |
Communication Apparatus, Communication System, Key Sharing Method, And Computer Program Product
App 20180351737 - TANIZAWA; Yoshimichi | 2018-12-06 |
Transmitting device, quantum communication system, and quantum communication method
Grant 10,103,818 - Murakami , et al. October 16, 2 | 2018-10-16 |
Transmission Device, Multi-quantum Communication System, And Multi-quantum Communication Method
App 20180269989 - MURAKAMI; Akira ; et al. | 2018-09-20 |
Quantum Communication Device, Quantum Communication System, And Quantum Communication Method
App 20180262328 - Doi; Kazuaki ; et al. | 2018-09-13 |
Key Sharing Device, Key Sharing System, Key Sharing Method, And Computer Program Product
App 20180255039 - TAKAHASHI; Ririka ; et al. | 2018-09-06 |
Quantum-key distribution apparatus, quantum-key distribution method, and computer program product
Grant 10,057,058 - Murakami , et al. August 21, 2 | 2018-08-21 |
Communication device, quantum key distribution system, quantum key distribution method, and computer program product
Grant 10,020,893 - Tanizawa , et al. July 10, 2 | 2018-07-10 |
Communication device, communication method, computer program product, and communication system
Grant 9,928,370 - Tanizawa , et al. March 27, 2 | 2018-03-27 |
Transmitting Device, Quantum Communication System, And Quantum Communication Method
App 20180083714 - MURAKAMI; Akira ; et al. | 2018-03-22 |
Communication Device, Communication Method, And Communication System
App 20180062837 - TANIZAWA; Yoshimichi | 2018-03-01 |
Communication Device, Communication System, And Communication Method
App 20180062836 - TANIZAWA; Yoshimichi | 2018-03-01 |
Communication Device, Communication Method, And Communication System
App 20180054304 - TANIZAWA; Yoshimichi | 2018-02-22 |
Communication Device, Communication System, And Communication Method
App 20180054306 - TANIZAWA; Yoshimichi ; et al. | 2018-02-22 |
Communication device, communication system, and communication method
Grant 9,893,884 - Tanizawa , et al. February 13, 2 | 2018-02-13 |
Receiver, transmitter, communication system, and communication method
Grant 9,813,237 - Tanizawa , et al. November 7, 2 | 2017-11-07 |
Communication Device, Quantum Key Distribution System, Quantum Key Distribution Method, And Computer Program Product
App 20170279540 - Tanizawa; Yoshimichi ; et al. | 2017-09-28 |
Quantum key distribution device, quantum key distribution system, and computer program product
Grant 9,768,954 - Takahashi , et al. September 19, 2 | 2017-09-19 |
Communication Device, Quantum Key Distribution System, Quantum Key Distribution Method, And Computer Program Product
App 20170264434 - TAKAHASHI; Ririka ; et al. | 2017-09-14 |
Quantum Key Distribution Device, Quantum Key Distribution System, And Quantum Key Distribution Method
App 20170264433 - TANIZAWA; Yoshimichi | 2017-09-14 |
Quantum key distribution device, quantum key distribution system, and quantum key distribution method
Grant 9,755,826 - Tanizawa September 5, 2 | 2017-09-05 |
Communication device, communication method, computer program product, and communication system
Grant 9,755,828 - Tanizawa September 5, 2 | 2017-09-05 |
Communication Device, Cryptographic Communication System, Cryptographic Communication Method, And Computer Program Product
App 20170222803 - TANIZAWA; Yoshimichi | 2017-08-03 |
Quantum communication device, quantum communication method, and computer program product
Grant 9,652,620 - Doi , et al. May 16, 2 | 2017-05-16 |
Quantum communication device, quantum communication method, and computer program product
Grant 9,569,731 - Doi , et al. February 14, 2 | 2017-02-14 |
Communication Device, Communication System, Communication Method, And Computer Program Product
App 20160373253 - KAWAMURA; Takuya ; et al. | 2016-12-22 |
Receiver, Transmitter, Communication System, And Communication Method
App 20160359625 - TANIZAWA; Yoshimichi ; et al. | 2016-12-08 |
Communication device, communication system, communication method, and computer program product
Grant 9,509,589 - Tanizawa , et al. November 29, 2 | 2016-11-29 |
Communication device, communication method, and computer program product
Grant 9,509,510 - Tanizawa November 29, 2 | 2016-11-29 |
Quantum key distribution device, quantum key distribution system, and quantum key distribution method
Grant 9,503,257 - Tanizawa November 22, 2 | 2016-11-22 |
Quantum Key Distribution Device, Quantum Key Distribution System, And Quantum Key Distribution Method
App 20160285629 - TANIZAWA; Yoshimichi | 2016-09-29 |
Communication apparatus, computer program product, and communication system
Grant 9,455,827 - Tanizawa , et al. September 27, 2 | 2016-09-27 |
Quantum-key Distribution Apparatus, Quantum-key Distribution Method, And Computer Program Product
App 20160277183 - MURAKAMI; Akira ; et al. | 2016-09-22 |
Communication device, communication system, and computer program product
Grant 9,450,929 - Tanizawa , et al. September 20, 2 | 2016-09-20 |
Communication Device, Communication Method, Computer Program Product, And Communication System
App 20160269177 - Tanizawa; Yoshimichi | 2016-09-15 |
Quantum Key Distribution Device, Quantum Key Distribution System, And Computer Program Product
App 20160218868 - TAKAHASHI; Ririka ; et al. | 2016-07-28 |
Device, method, and system for encrypted communication by using encryption key
Grant 9,356,780 - Tanizawa , et al. May 31, 2 | 2016-05-31 |
Quantum key distribution device, quantum key distribution system, and quantum key distribution method
Grant 9,350,542 - Takahashi , et al. May 24, 2 | 2016-05-24 |
Quantum Key Distribution Device, Quantum Key Distribution System, And Quantum Key Distribution Method
App 20160142203 - TANIZAWA; Yoshimichi ; et al. | 2016-05-19 |
Communication apparatus, communication system, and computer program product
Grant 9,313,184 - Tanizawa , et al. April 12, 2 | 2016-04-12 |
Communication device, key generating device, and computer readable medium
Grant 9,306,734 - Tanizawa , et al. April 5, 2 | 2016-04-05 |
Communication apparatus and communication method
Grant 9,294,269 - Tanaka , et al. March 22, 2 | 2016-03-22 |
Key generating device and key generating method
Grant 9,240,882 - Tanizawa , et al. January 19, 2 | 2016-01-19 |
Communication method, application device, program, and communication system
Grant 9,197,608 - Tanizawa , et al. November 24, 2 | 2015-11-24 |
Communication Device, Communication Method, And Computer Program Product
App 20150270963 - TANIZAWA; Yoshimichi | 2015-09-24 |
Communication System, Communication Apparatus, Communication Method, And Computer Program Product
App 20150271147 - TANIZAWA; Yoshimichi ; et al. | 2015-09-24 |
Communication Device, Communication System, And Communication Method
App 20150270959 - Tanizawa; Yoshimichi ; et al. | 2015-09-24 |
Quantum Key Distribution Device, Quantum Key Distribution System, And Quantum Key Distribution Method
App 20150236852 - TANIZAWA; Yoshimichi | 2015-08-20 |
Communication apparatus and key managing method
Grant 9,106,406 - Baba , et al. August 11, 2 | 2015-08-11 |
Quantum Key Distribution Device, Quantum Key Distribution System, And Quantum Key Distribution Method
App 20150215122 - TAKAHASHI; Ririka ; et al. | 2015-07-30 |
Communication device and computer program product
Grant 9,083,682 - Tanizawa , et al. July 14, 2 | 2015-07-14 |
Communication node, key synchronization method, and key synchronization system
Grant 9,083,684 - Tanizawa , et al. July 14, 2 | 2015-07-14 |
Quantum Communication Device, Quantum Communication Method, And Computer Program Product
App 20150193306 - DOI; Kazuaki ; et al. | 2015-07-09 |
Quantum Communication Device, Quantum Communication Method, And Computer Program Product
App 20150195087 - DOI; Kazuaki ; et al. | 2015-07-09 |
IP phone terminal, server, authenticating apparatus, communication system, communication method, and recording medium
Grant 9,065,684 - Tanizawa , et al. June 23, 2 | 2015-06-23 |
Data sharing method, transmitter, receiver and data sharing system
Grant 9,059,746 - Dixon , et al. June 16, 2 | 2015-06-16 |
Communication apparatus
Grant 9,054,890 - Tanizawa , et al. June 9, 2 | 2015-06-09 |
Secured cryptographic communication system
Grant 9,049,012 - Baba , et al. June 2, 2 | 2015-06-02 |
Node, switch, and system
Grant 9,019,959 - Tanizawa April 28, 2 | 2015-04-28 |
Information processing device and computer program product
Grant 8,990,521 - Ishihara , et al. March 24, 2 | 2015-03-24 |
Switching apparatus, authentication server, authentication system, authentication method, and computer program product
Grant 8,959,581 - Tanizawa February 17, 2 | 2015-02-17 |
Transmitter, Receiver, Quantum Key Distribution (qkd) System And Quantum Key Distribution Method
App 20150036824 - DIXON; Alex ; et al. | 2015-02-05 |
Communication Apparatus, Computer Program Product, And Communication System
App 20150036825 - TANIZAWA; Yoshimichi ; et al. | 2015-02-05 |
Communication Device, Communication Method, Computer Program Product, And Communication System
App 20140365786 - Tanizawa; Yoshimichi ; et al. | 2014-12-11 |
Communication Device, Communication Method, And Communication System
App 20140365774 - TANIZAWA; Yoshimichi ; et al. | 2014-12-11 |
Communication device and communication system
Grant 8,880,921 - Ise , et al. November 4, 2 | 2014-11-04 |
Terminal, method, and computer program product for registering user address information
Grant 8,861,380 - Tanizawa , et al. October 14, 2 | 2014-10-14 |
Communication Device, Communication System, Communication Method, And Computer Program Product
App 20140289520 - Tanizawa; Yoshimichi ; et al. | 2014-09-25 |
Communication Apparatus, Communication System, And Computer Program Product
App 20140208116 - Tanizawa; Yoshimichi ; et al. | 2014-07-24 |
Communication device for transmitting received start-up signal and power signal for starting up a designated node
Grant 8,782,448 - Tanizawa , et al. July 15, 2 | 2014-07-15 |
Communication Node, Key Synchronization Method, And Key Synchronization System
App 20140181522 - TANIZAWA; Yoshimichi ; et al. | 2014-06-26 |
Communication Device And Computer Program Product
App 20140181508 - TANIZAWA; Yoshimichi ; et al. | 2014-06-26 |
Communication Device, Communication System, And Computer Program Product
App 20140143443 - TAKAHASHI; Ririka ; et al. | 2014-05-22 |
Communication Device, Communication System, And Computer Program Product
App 20140143867 - TANIZAWA; Yoshimichi ; et al. | 2014-05-22 |
Communication Apparatus And Communication Method
App 20140143537 - TANAKA; Yasuyuki ; et al. | 2014-05-22 |
Data Sharing Method, Transmitter, Receiver And Data Sharing System
App 20140095957 - DIXON; Alex ; et al. | 2014-04-03 |
Communication Method, Application Device, Program, And Communication System
App 20140089663 - TANIZAWA; Yoshimichi ; et al. | 2014-03-27 |
Communication Apparatus, Communication Method, Computer-readable Medium, And Communication System
App 20140044260 - BABA; Shinichi ; et al. | 2014-02-13 |
Communication Device, Communication Method, And Communication System
App 20140023192 - TANIZAWA; Yoshimichi ; et al. | 2014-01-23 |
Communication Device, Key Generating Device, And Computer Readable Medium
App 20140013101 - TANIZAWA; Yoshimichi ; et al. | 2014-01-09 |
Communication system for authenticating or relaying network access, relaying apparatus, authentication apparatus, and communication method
Grant 8,601,568 - Tanizawa , et al. December 3, 2 | 2013-12-03 |
Apparatus, method, and computer program product for registering user address information
Grant 8,583,794 - Tanizawa , et al. November 12, 2 | 2013-11-12 |
Method and apparatus for authenticating terminal device, and terminal device
Grant 8,578,455 - Esaka , et al. November 5, 2 | 2013-11-05 |
Communication Apparatus And Key Managing Method
App 20130259233 - BABA; Shinichi ; et al. | 2013-10-03 |
Key Generating Device And Key Generating Method
App 20130251154 - TANIZAWA; Yoshimichi ; et al. | 2013-09-26 |
Communications Terminal And Computer Readable Medium
App 20130250826 - Tanizawa; Yoshimichi ; et al. | 2013-09-26 |
Information Processing Device And Computer Program Product
App 20130138900 - Ishihara; Takeshi ; et al. | 2013-05-30 |
Communication Device, Communication Method, And Computer Readable Medium
App 20130083668 - OYAMA; Yuichiro ; et al. | 2013-04-04 |
Communication Apparatus And Computer Program Product
App 20130047014 - ISE; Kotaro ; et al. | 2013-02-21 |
Apparatus, method and computer program product for authenticating communication terminal
Grant 8,307,200 - Tanizawa , et al. November 6, 2 | 2012-11-06 |
Authentication device and network authentication system, method for authenticating terminal device and program storage medium
Grant 8,286,224 - Esaka , et al. October 9, 2 | 2012-10-09 |
Data Processing Apparatus, Data Processing Method, And Computer Program Product
App 20120246269 - ISHIHARA; Takeshi ; et al. | 2012-09-27 |
Communication Apparatus
App 20120242461 - TANIZAWA; Yoshimichi ; et al. | 2012-09-27 |
Node, Switch, And System
App 20120076139 - TANIZAWA; Yoshimichi | 2012-03-29 |
Communication Device, Start Node, System, Method And Compuet Program Product
App 20120079297 - Tanizawa; Yoshimichi ; et al. | 2012-03-29 |
Communication Device And Communication System
App 20120079302 - Ise; Kotaro ; et al. | 2012-03-29 |
Server apparatus, terminal device, and method for performing IP multicast communication
Grant 8,140,844 - Tanizawa , et al. March 20, 2 | 2012-03-20 |
Apparatus and method for controlling communication through firewall, and computer program product
Grant 8,136,144 - Tanizawa , et al. March 13, 2 | 2012-03-13 |
Apparatus, method, and terminal apparatus for maintaining connection
Grant 7,984,159 - Tanizawa , et al. July 19, 2 | 2011-07-19 |
Switching Apparatus, Authentication Server, Authentication System, Authentication Method, And Computer Program Product
App 20100125892 - Tanizawa; Yoshimichi | 2010-05-20 |
Internet Protocol Communication System, Server Unit, Terminal Device, and Authentication Method
App 20090300197 - Tanizawa; Yoshimichi ; et al. | 2009-12-03 |
Communication System For Determining Communication Relay Destination, Apparatus For Notifying Relay Destination Information, And Ip Phone Terminal
App 20090238350 - ESAKA; Naoki ; et al. | 2009-09-24 |
Ip Phone Terminal, Server, Authenticating Apparatus, Communication System, Communication Method, And Recording Medium
App 20090238172 - TANIZAWA; Yoshimichi ; et al. | 2009-09-24 |
Terminal, Method, And Computer Program Product For Registering User Address Information
App 20090116474 - TANIZAWA; Yoshimichi ; et al. | 2009-05-07 |
Apparatus, method, and computer program product for registering user address information
App 20090109963 - Tanizawa; Yoshimichi ; et al. | 2009-04-30 |
Authentication Device And Network Authentication System, Method For Authenticating Terminal Device And Program Storage Medium
App 20090064281 - Esaka; Naoki ; et al. | 2009-03-05 |
Communication System For Authenticating Or Relaying Network Access, Relaying Apparatus, Authentication Apparatus, And Communication Method
App 20090025079 - Tanizawa; Yoshimichi ; et al. | 2009-01-22 |
Apparatus, Method, And Computer Program Product For Relaying Messages
App 20090016339 - Tanizawa; Yoshimichi ; et al. | 2009-01-15 |
Communication apparatus and method
Grant 7,443,983 - Tanizawa , et al. October 28, 2 | 2008-10-28 |
Message Relaying Apparatus, Communication Establishing Method, And Computer Program Product
App 20080235381 - TANIZAWA; Yoshimichi ; et al. | 2008-09-25 |
Apparatus, method, and terminal apparatus for maintaining connection
App 20080171564 - Tanizawa; Yoshimichi ; et al. | 2008-07-17 |
Method and apparatus for authenticating terminal device, and terminal device
App 20080172724 - Esaka; Naoki ; et al. | 2008-07-17 |
Apparatus, method and computer program product for authenticating communication terminal
App 20080155250 - Tanizawa; Yoshimichi ; et al. | 2008-06-26 |
Server apparatus, terminal device, and method for performing IP multicast communication
App 20080028211 - Tanizawa; Yoshimichi ; et al. | 2008-01-31 |
Apparatus and method for controlling communication through firewall, and computer program product
App 20070300289 - Tanizawa; Yoshimichi ; et al. | 2007-12-27 |
Base station, wireless communication systems, base station control programs and base station control methods
App 20070190973 - Goto; Masataka ; et al. | 2007-08-16 |
Communication apparatus and method
App 20050135625 - Tanizawa, Yoshimichi ; et al. | 2005-06-23 |
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