Patents by Inventor Takayuki Sasaki

Takayuki Sasaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9076011
    Abstract: Provided is a system in which two or more clients, each including an application program that transmits a network access request, and a server are able to communicate, wherein at least one client includes first control means for controlling the access request transmitted to the server, based on a security level assigned to the application program, and the server includes second control means for determining whether the first control means has been introduced to the client that has transmitted the access request, authorizing the access request when the determination result is positive, and controlling the access request based on a security level assigned to an access target when the determination result is negative.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: July 7, 2015
    Assignee: NEC CORPORATION
    Inventor: Takayuki Sasaki
  • Publication number: 20150172176
    Abstract: The present invention reduces load on a control device responding to a request to send control information that is issued from a switch. A control device includes: a control information management unit that manages control information including a match field and used for causing a packet which matches the match field to be processed; and a request processing unit that, when receiving, from a switch under control, a transmission request for control information for processing a packet which the switch receives, compares a match field of control information managed by the control information management unit with a field, which is to be compared with the match field, of a packet received by the switch, selects, from pieces of control information having match fields which match the field of the packet, a piece of control information having a looser match field, and replies to the switch with the selected piece of control information.
    Type: Application
    Filed: July 12, 2013
    Publication date: June 18, 2015
    Applicant: NEC Corporation
    Inventors: Takayuki Sasaki, Masayuki Nakae, Hideyuki Shimonishi, Kentaro Sonoda, Yoichi Hatano, Masaya Yamagata, Yoichiro Morita
  • Publication number: 20150172175
    Abstract: To control transmission of a control information transmission request from a switch to a control device. The switch includes: a packet processing unit that processes a received packet by using control information received from a preset control device control device; a communication unit that transmits and receives the control information to and from the control device; and a control unit that controls order of control information to be transmitted and received by the communication unit.
    Type: Application
    Filed: July 12, 2013
    Publication date: June 18, 2015
    Applicant: NEC Corporation
    Inventors: Takayuki Sasaki, Masayuki Nakae, Hideyuki Shimonishi, Kentaro Sonoda, Yoichi Hatano, Masaya Yamagata, Yoichiro Morita
  • Publication number: 20150124595
    Abstract: A communication system includes: a control apparatus setting control information in a forwarding node(s); a forwarding node(s); and an access control apparatus. The forwarding node(s) forwards packets by using first control information set by the control apparatus and second control information for forwarding packets that do not match a matching condition(s) in the first control information set by the control apparatus from a predetermined port of the forwarding node(s). The access control apparatus includes a determination unit determining whether to generate control information for the packets forwarded from the predetermined port of the forwarding node(s) and requesting the control apparatus to generate control information.
    Type: Application
    Filed: April 26, 2013
    Publication date: May 7, 2015
    Inventors: Masaya Yamagata, Yoichiro Morita, Takayuki Sasaki, Masayuki Nakae, Kentaro Sonoda, Yoichi Hatano, Hideyuki Shimonishi
  • Patent number: 9021289
    Abstract: In a power estimator, a power coefficient-calculating section acquires an average value of the number of signal changes per unit time in each circuit range to thereby calculate a power coefficient for each circuit range or calculate a power coefficient for each circuit range when the average value of the number of signal changes per unit time is equal to 1, a correction coefficient-calculating section calculates a ratio of an average value of the number of signal changes per unit time at signal lines included in the circuit range to an average value of the number of signal changes per unit time at observing points designated in the circuit range, as a correction coefficient, and a power value-calculating section calculates a power value for each circuit range based on the correction coefficient and the power coefficient calculated for each circuit range.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: April 28, 2015
    Assignees: Fujitsu Limited, Fujitsu Semiconductor Limited
    Inventors: Takayuki Sasaki, Hirohisa Kotegawa, Takashi Tokue, Shigeru Satoh, Tatsuro Miyakawa, Ryuji Fujita, Junichi Niitsuma
  • Publication number: 20150104702
    Abstract: An electricity storage device including a positive electrode, a negative electrode, and an electrolytic solution located between the positive electrode and the negative electrode. At least one of the positive electrode 31 and the negative electrode contains an electricity storage material containing a polymerization product having a tetrachalcogenofulvalene structure in a repeat unit of a main chain.
    Type: Application
    Filed: December 16, 2014
    Publication date: April 16, 2015
    Inventors: Nobuhiko HOJO, Yu OHTSUKA, Takakazu YAMAMOTO, Takahisa SHIMIZU, Takayuki SASAKI, Tomoaki YANAGIDA
  • Publication number: 20150078169
    Abstract: A communication terminal comprises: first means that communicates with a network system that includes a forwarding apparatus forwarding a packet and a control apparatus informing the forwarding apparatus of a processing rule prescribing a packet processing method; second means that determines a processing operation to be executed by the network system from among packet processing operations to be executed by the communication terminal; and third means that informs the forwarding apparatus of a processing rule corresponding to the determined packet processing operation.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 19, 2015
    Applicant: NEC CORPORATION
    Inventors: Kentaro Sonoda, Yasuhiro Mizukoshi, Hideyuki Shimonishi, Yoichi Hatano, Masayuki Nakae, Masaya Yamagata, Yoichiro Morita, Takayuki Sasaki
  • Publication number: 20150081755
    Abstract: A visualization device is communicable with one or a plurality of host servers for hosting a virtual system, and includes an information acquisition unit for collecting configuration information on the virtual system and the host server, a storage unit for storing the configuration information therein, and a drawing unit for expressing a virtual machine and a virtual network configuring the virtual system with different axes based on the configuration information stored in the storage unit, expressing a connection relationship between a virtual machine and a virtual network by linking the lines extending from the respective axes, and grouping virtual machines in units of server on which the virtual machines operate thereby to generate drawing information for expressing the configuration of the virtual system and the host server.
    Type: Application
    Filed: April 9, 2012
    Publication date: March 19, 2015
    Inventors: Yoichi Hatano, Hideyuki Shimonishi, Kentaro Sonoda, Masayuki Nakae, Masaya Yamagata, Yoichiro Morita, Takayuki Sasaki, Takeo Ohno
  • Publication number: 20150063354
    Abstract: A communication system, includes: a node that requests a processing rule for processing a packet; and a control apparatus that notifies the node of the processing rule in response to the request. The control apparatus, upon being notified of change of a connection relationship between a communication apparatus to which a packet is addressed and the node, determines a forwarding path for a packet addressed to the communication apparatus and notifies the node of a processing rule for realizing the forwarding path.
    Type: Application
    Filed: March 29, 2013
    Publication date: March 5, 2015
    Inventors: Kentaro Sonoda, Hideyuki Shimonishi, Toshio Koide, Yoichi Hatano, Masayuki Nakae, Masaya Yamagata, Yoichiro Morita, Takayuki Sasaki, Yuki Ashino, Takeo Ohno
  • Publication number: 20150049766
    Abstract: A route request mediation apparatus comprises a resource management unit that manages a resource of a network to be managed; a request receiving unit that receives a route request with an added service level condition from a user or another route request mediation apparatus; a negotiation status management unit that forwards the route request to a destination specified by the route request, and manages a negotiation status based on a response from the destination; an acceptance assessment unit that assesses whether or not to accept the route request by referring to the negotiation status managed by the negotiation status management unit and to the resource management unit; and a response sending unit that responds with an assessment result that indicates whether or not the route request is accepted to the request source of the route request.
    Type: Application
    Filed: March 7, 2013
    Publication date: February 19, 2015
    Applicant: NEC CORPORATION
    Inventors: Masayuki Nakae, Masaya Yamagata, Takayuki Sasaki, Yoichiro Morita, Hideyuki Shimonishi, Kentaro Sonoda, Yoichi Hatano
  • Patent number: 8954960
    Abstract: In a net boot type thin client system, bottle necks concentrate on specific steps in a previously downloading method and an on-demand downloading method so as to hinder high-speed operation. Specifically, a previously file acquiring section for acquiring a file before the OS operates, an on-demand file acquiring section for acquiring a file while the OS operates, and a file determining section for determining whether or not a file is used in a high frequency. A high use-frequency file is downloaded before an OS operates and a low use-frequency file is downloaded while the OS operates.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: February 10, 2015
    Assignee: NEC Corporation
    Inventors: Ryuichi Ogawa, Takayuki Sasaki
  • Publication number: 20150035682
    Abstract: The slave suitable for energy management systems in accordance with the present invention is a slave suitable for an energy management system for collecting, from an energy meter for measuring an amount of electric energy supplied from a power source to a predetermined place through a distribution line, meter-reading data including the amount of energy. The slave includes: a first interface unit configured to communicate with an upper device; a second interface unit configured to perform wireless communication using an electric wave with an electric appliance installed in the predetermined place; and a third interface unit configured to perform wireless communication using an electric wave with a communication terminal. The second interface unit and the third interface unit are configured to use the same protocol.
    Type: Application
    Filed: February 26, 2013
    Publication date: February 5, 2015
    Inventors: Takayuki Sasaki, Kenji Kuniyoshi, Tomohide Furuya, Masaki Koyama, Shinji Yamamoto, Tomoaki Mizuta
  • Patent number: 8945769
    Abstract: An electricity storage device including a positive electrode 31, a negative electrode 32, and an electrolytic solution 29 located between the positive electrode and the negative electrode. At least one of the positive electrode 31 and the negative electrode 32 contains an electricity storage material containing a polymerization product having a tetrachalcogenofulvalene structure in a repeat unit of a main chain.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: February 3, 2015
    Assignee: Panasonic Corporation
    Inventors: Nobuhiko Hojo, Yu Ohtsuka, Takakazu Yamamoto, Takahisa Shimizu, Takayuki Sasaki, Tomoaki Yanagida
  • Publication number: 20150012233
    Abstract: The slave suitable for energy management systems in accordance with the present invention is a slave of an energy management system for collecting, from an energy meter for measuring an amount of electric energy supplied from a power source to a predetermined place through a distribution line, a meter-reading data containing the amount of electric energy. The slave includes: a first interface unit configured to communicate with an upper device; a second interface unit configured to communicate with an electric appliance installed in the predetermined place; a third interface unit configured to communicate with a communication terminal. The second interface unit and the third interface unit are configured to perform wireless communication using electric waves in wireless communication schemes different from each other.
    Type: Application
    Filed: February 26, 2013
    Publication date: January 8, 2015
    Applicant: Panasonic Corporation
    Inventors: Tomoaki Mizuta, Kenji Kuniyoshi, Tomohide Furuya, Masaki Koyama, Takayuki Sasaki, Shinji Yamamoto
  • Publication number: 20140341219
    Abstract: A communication terminal comprises: first unit that communicates with a network system that includes a forwarding apparatus forwarding a packet and a control apparatus informing the forwarding apparatus of a processing rule prescribing a packet processing method; second unit that determines a processing operation to be executed by the network system from among packet processing operations to be executed by the communication terminal; and third unit that requests the control apparatus to inform the forwarding apparatus of a processing rule corresponding to the determined packet processing operation.
    Type: Application
    Filed: September 14, 2012
    Publication date: November 20, 2014
    Applicant: NEC CORPORATION
    Inventors: Kentaro Sonoda, Yasuhiro Mizukoshi, Hideyuki Shimonishi, Yoichi Hatano, Masayuki Nakae, Masaya Yamagata, Yoichiro Morita, Takayuki Sasaki
  • Publication number: 20140341019
    Abstract: A communication system includes: a forwarding node(s) in which a first packet handling operation(s) for processing incoming packets is set and which processes packets in accordance with the packet handling operation(s); a first control apparatus setting the first packet handling operation(s) in the forwarding node(s); a flow control node(s) arranged upstream of the forwarding node(s); and a second control apparatus setting a second packet handling operation(s) in the flow control node(s). The flow control node(s) intercepts forwarding of packets that do not satisfy a predetermined condition(s) to the forwarding node(s) in accordance with the second packet handling operation(s).
    Type: Application
    Filed: September 12, 2012
    Publication date: November 20, 2014
    Applicant: NEC CORPORATION
    Inventors: Masaya Yamagata, Hideyuki Shimonishi, Kentaro Sonoda, Yoichi Hatano, Masayuki Nakae, Yoichiro Morita, Takayuki Sasaki
  • Publication number: 20140208439
    Abstract: The present invention provides an injustice detecting system enabling detection of an injustice that is performed through an operation that cannot be distinguished from normal operation. This injustice detecting system is provided with: a history recording unit for recording operation history information of a monitored device; an audit information disclosure unit for disclosing audit information including at least information indicating that an audit for detecting an injustice is to be implemented; and an injustice detecting unit for detecting the injustice on the basis of pre-disclosure operation history information which is operation history information generated before the audit information is disclosed, and post-disclosure operation history information, which is operation history information generated after the audit information is disclosed.
    Type: Application
    Filed: April 27, 2012
    Publication date: July 24, 2014
    Applicant: NEC CORPORATION
    Inventor: Takayuki Sasaki
  • Publication number: 20140208437
    Abstract: An anonymization device includes: an analysis unit which outputs an analysis result of privacy information including personal information on the basis of an analysis command; and a feedback information creation unit which creates the analysis command on the basis of a disclosure request including disclosure object information indicating an object to be disclosed and disclosure format information indicating the format of the disclosure, outputs the analysis command to the analysis unit, and creates and outputs a disclosure response including feedback information which suggests a change to the disclosure request to increase anonymity, on the basis of the anonymity in the analysis result received from the analysis unit.
    Type: Application
    Filed: August 16, 2012
    Publication date: July 24, 2014
    Applicant: NEC Corporation
    Inventors: Takayuki Sasaki, Ryo Furukawa
  • Patent number: 8776056
    Abstract: A maintenance system in which a user work made during a maintenance work is not lost is provided. Specifically, a user computing machine includes: a user data determination section determining, in a case that a name of a file received from a software update service is the same as a name of a file included in a VM that a user uses, whether the file included in the VM that the user uses is data created by the user; and a VM merge section copying a file except user data into the VM that the user uses in the received files by calling the user data determination section.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: July 8, 2014
    Assignee: NEC Corporation
    Inventor: Takayuki Sasaki
  • Patent number: 8745610
    Abstract: At the time of a maintenance work, a user computing machine does not give user data to a person (maintainer) who carries out maintenance and does not accept operations and data that are not relevant to the maintenance work so as to prevent the leakage of user data. Specifically, a user computing machine includes: a user data determination section determining whether a file of a VM of a computing machine used by a user is data created by the user, and a VM copy section, creating a copy of a VM which does not include data created by the user by calling the user data determination section. The maintenance is performed by supplying the VM which does not include data created by the user to a computing machine of the maintainer.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: June 3, 2014
    Assignee: NEC Corporation
    Inventor: Takayuki Sasaki