Patents by Inventor Junpei Kamimura

Junpei Kamimura 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).

  • Publication number: 20230418720
    Abstract: A system monitoring apparatus comprising: a complementing unit that generates complemented node information by complementing, based on a complementing model trained using information collected in a testing system using a monitoring command and an agent, first node information collected in an operated system using the monitoring command; and an estimating unit that estimates the probability of a link being present between nodes by inputting the complemented node information to a link estimating model trained using the information collected in the testing system using the monitoring command and the agent.
    Type: Application
    Filed: November 30, 2020
    Publication date: December 28, 2023
    Applicant: NEC Corporation
    Inventors: Kazuhiko ISOYAMA, Junpei KAMIMURA, Yoshiaki SAKAE
  • Publication number: 20230376607
    Abstract: In order to determine whether or not there is a security risk, based on an actual data flow in a system to be analyzed, an analysis apparatus includes: a receiving unit configured to receive history information related to operation history of a program operating in a system to be analyzed; a generating unit configured to generate data flow information indicating a path of data exchanged in the system to be analyzed, based on the history information; and a risk determining unit configured to perform a risk determining process for determining whether or not there is a security risk in the data flow information, based on a preset determination condition.
    Type: Application
    Filed: November 19, 2020
    Publication date: November 23, 2023
    Applicant: NEC Corporation
    Inventors: Junpei KAMIMURA, Kazuhiko ISOYAMA, Yoshiakai SHKAE
  • Patent number: 11372839
    Abstract: The purpose of the present invention is to provide a technology which assists a verifying party in ascertaining an anomaly in an event of which notification has been made. Provided is an assistance device, comprising: an acquisition unit which acquires as an associated event, from among events which take place among a plurality of elements, and with respect to elements which have been associated with an event which has been detected as an anomalous event, an event other than the anomalous event which has been associated with the elements; and a generating unit which, on the basis of the anomalous event and the associated event, generates a relational graph in which the elements are vertices, the relations among the elements are edges, the anomalous event and the associated event are respectively represented, and the associated event is displayed in a display screen in a different manner from the manner in which the anomalous event is displayed.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: June 28, 2022
    Assignee: NEC CORPORATION
    Inventors: Junpei Kamimura, Koji Kida, Kazuhiko Isoyama, Yuji Kobayashi, Hiroki Tagato, Etsuko Ichihara, Yoshiaki Sakae
  • Patent number: 11250029
    Abstract: The present invention provides an information processing system for more appropriately classifying elements that constitute an information processing device or the like. This information processing system is provided with: a means that, on the basis of information indicating the relationship between a plurality of elements that constitute a system, acquires, for first elements to be classified, a set of second elements capable of arriving at the first elements via a relationship of arbitrary numbers; and a means that, on the basis of the set corresponding to the first elements, classifies each of the first elements in any of a plurality of roles.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: February 15, 2022
    Assignee: NEC CORPORATION
    Inventors: Takashi Nomura, Koji Kida, Kazuhiko Isoyama, Junpei Kamimura, Yoshiaki Sakae, Yuji Kobayashi, Etsuko Ichihara
  • Patent number: 10949318
    Abstract: Provided is, for example, a display control apparatus that generates display information with which an event having occurred in an information processing system can be easily determined. This display control apparatus 101 comprises a display control unit 102 that, on the basis of device information indicating a device detected by a first information processing apparatus in an information processing system and communication information indicating communication executed between a second information processing apparatus in the information processing system and a third information processing apparatus in the information processing system: performs displaying on a display apparatus in a manner such that said device and said first information processing apparatus are associated with one another; and performs displaying on said display apparatus in a manner such that said second information processing apparatus and said third information processing apparatus are associated with one another.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: March 16, 2021
    Assignee: NEC CORPORATION
    Inventors: Etsuko Ichihara, Koji Kida, Yoshiaki Sakae, Kazuhiko Isoyama, Junpei Kamimura, Takashi Nomura, Yuji Kobayashi
  • Patent number: 10887331
    Abstract: An information processing apparatus includes: a reach-extent extraction unit configured to extract, with use of a relationship graph representing relationships between a plurality of elements included in a system and location information that indicates, on the relationship graph, a plurality of locations in the system where anomalies have been detected, paths in the relationship graph as being reach extents, the path including a set of the elements that are directly or indirectly related to each of the plurality of locations as a source; and a shared-extent extraction unit configured to extract an influence process of an anomaly by extracting an extent that is shared in at least a prescribed number of paths among paths in the relationship graph that have been extracted as the reach extents.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: January 5, 2021
    Assignee: NEC Coporation
    Inventors: Takashi Nomura, Koji Kida, Junpei Kamimura, Yoshiaki Sakae, Etsuko Katsuda, Kazuhiko Isoyama, Kentaro Yamasaki, Yuji Kobayashi
  • Patent number: 10860406
    Abstract: The present invention provides an information processing device that outputs information including the data transmission relationship between elements constituting an information processing system, the information indicating the state of the information processing system. The information processing device includes a graphing means for generating a relationship graph based on an event log indicating the behavior of each of a plurality of processes operating in the system, the relationship graph having the processes as the vertices thereof and having the data transmission relationship between the vertices as the sides thereof; and a graph output means for outputting the generated relationship graph.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: December 8, 2020
    Assignee: NEC Corporation
    Inventors: Takashi Nomura, Koji Kida, Junpei Kamimura, Yoshiaki Sakae, Etsuko Katsuda, Kazuhiko Isoyama, Kentaro Yamasaki, Yuji Kobayashi
  • Patent number: 10789118
    Abstract: The present invention provides an information processing device that improves the detectability of system errors. This information processing device includes: a means that generates a state graph based on relationship change information indicating a change in the relationship between a plurality of elements included in a system, the state graph having the elements as the vertices thereof and the relationship between the elements as the sides thereof; a means that generates a normal model having the state graph as a set of conditions to be fulfilled during normal system operation, based on the relationship change information; and a means that detects system errors and outputs error information indicating detected errors, based on the state graph and the normal model.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: September 29, 2020
    Assignee: NEC Corporation
    Inventors: Takashi Nomura, Koji Kida, Junpei Kamimura, Yoshiaki Sakae, Etsuko Katsuda, Kazuhiko Isoyama, Kentaro Yamasaki, Yuji Kobayashi
  • Publication number: 20200301907
    Abstract: The purpose of the present invention is to provide a technology which assists a verifying party in ascertaining an anomaly in an event of which notification has been made. Provided is an assistance device, comprising: an acquisition unit which acquires as an associated event, from among events which take place among a plurality of elements, and with respect to elements which have been associated with an event which has been detected as an anomalous event, an event other than the anomalous event which has been associated with the elements; and a generating unit which, on the basis of the anomalous event and the associated event, generates a relational graph in which the elements are vertices, the relations among the elements are edges, the anomalous event and the associated event are respectively represented, and the associated event is displayed in a display screen in a different manner from the manner in which the anomalous event is displayed.
    Type: Application
    Filed: December 1, 2016
    Publication date: September 24, 2020
    Applicant: NEC Corporation
    Inventors: Junpei KAMIMURA, Koji KIDA, Kazuhiko ISOYAMA, Yuji KOBAYASHI, Hiroki TAGATO, Etsuko ICHIHARA, Yoshiaki SAKAE
  • Patent number: 10754719
    Abstract: The diagnosis device specifies a progression degree relating to a first information processing device for output information output by a first detection device at a first timing with respect to the first information processing device, based on device information indicates a progression degree that represents a degree to which the information processing device is abnormal with respect to the information processing device, determines whether or not information in which a first detection device identifier of the first detection device and the specified progression degree are associated with each other is included in progression-degree information in which a detection device identifier capable of identifying a detection device and the progression degree are associated with each other; and calculates the progression degree relating to the first information processing device according to the specified progression degree when the information is determined to be included in the progression-degree information.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: August 25, 2020
    Assignee: NEC CORPORATION
    Inventors: Kazuhiko Isoyama, Koji Kida, Hiroki Tagato, Yoshiaki Sakae, Junpei Kamimura, Yuji Kobayashi, Etsuko Ichihara
  • Publication number: 20200264962
    Abstract: Provided is, for example, a display control apparatus that generates display information with which an event having occurred in an information processing system can be easily determined. This display control apparatus 101 comprises a display control unit 102 that, on the basis of device information indicating a device detected by a first information processing apparatus in an information processing system and communication information indicating communication executed between a second information processing apparatus in the information processing system and a third information processing apparatus in the information processing system: performs displaying on a display apparatus in a manner such that said device and said first information processing apparatus are associated with one another; and performs displaying on said display apparatus in a manner such that said second information processing apparatus and said third information processing apparatus are associated with one another.
    Type: Application
    Filed: December 19, 2016
    Publication date: August 20, 2020
    Applicant: NEC Corporation
    Inventors: Etsuko ICHIHARA, Koji KIDA, Yoshiaki SAKAE, Kazuhiko ISOYAMA, Junpei KAMIMURA, Takashi NOMURA, Yuji KOBAYASHI
  • Patent number: 10621947
    Abstract: Provided is, for example, a display control apparatus that generates display information for specifying an event occurred in an information processing system easily.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: April 14, 2020
    Assignee: NEC CORPORATION
    Inventors: Etsuko Ichihara, Koji Kida, Hiroki Tagato, Yoshiaki Sakae, Kazuhiko Isoyama, Junpei Kamimura, Yuji Kobayashi
  • Patent number: 10474325
    Abstract: Disclosed are a display control device, etc., with which information is displayed according to a display mode having high visibility.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: November 12, 2019
    Assignee: NEC Corporation
    Inventors: Kazuhiko Isoyama, Etsuko Ichihara, Junpei Kamimura, Yoshiaki Sakae, Yuji Kobayashi, Takashi Nomura, Koji Kida
  • Patent number: 10416832
    Abstract: Disclosed are a display device, etc. which display information in a display format that provides high visibility. The display device 201 comprises a display unit 202 which displays first nodes, each representing a different communication entity with communication capabilities, or second nodes, each representing a different group of a plurality of communication entities, around a first region, and which shows communications being carried out between first and second nodes, between a plurality of first nodes, or between a plurality of second nodes, in a display format in which the connections between these communicating nodes are indicated within the first region.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: September 17, 2019
    Assignee: NEC CORPORATION
    Inventors: Kazuhiko Isoyama, Etsuko Ichihara, Junpei Kamimura, Yoshiaki Sakae, Yuji Kobayashi, Takashi Nomura, Koji Kida
  • Publication number: 20190018959
    Abstract: The purpose of the present invention is to provide a software analysis device which efficiently analyzes a computer environment in which software is capable of running. The software analysis system determines an order of detection devices, generates order information representing the order, and calculate a progression degree of abnormality based on how degree a predetermined order include the order in the order information.
    Type: Application
    Filed: December 6, 2016
    Publication date: January 17, 2019
    Applicant: NEC Corporation
    Inventors: Kazuhiko ISOYAMA, Koji KIDA, Hiroki TAGATO, Yoshiaki SAKAE, Junpei KAMIMURA, Yuji KOBAYASHI, Etsuko ICHIHARA
  • Publication number: 20180357976
    Abstract: Provided is, for example, a display control apparatus that generates display information for specifying an event occurred in an information processing system easily.
    Type: Application
    Filed: December 19, 2016
    Publication date: December 13, 2018
    Applicant: NEC Corporation
    Inventors: Etsuko ICHIHARA, Koji KIDA, Hiroki TAGATO, Yoshiaki SAKAE, Kazuhiko ISOYAMA, Junpei KAMIMURA, Yuji KOBAYASHI
  • Publication number: 20180276064
    Abstract: The diagnosis device specifies a progression degree relating to a first information processing device for output information output by a first detection device at a first timing with respect to the first information processing device, based on device information indicates a progression degree that represents a degree to which the information processing device is abnormal with respect to the information processing device, determines whether or not information in which a first detection device identifier of the first detection device and the specified progression degree are associated with each other is included in progression-degree information in which a detection device identifier capable of identifying a detection device and the progression degree are associated with each other; and calculates the progression degree relating to the first information processing device according to the specified progression degree when the information is determined to be included in the progression-degree information.
    Type: Application
    Filed: December 6, 2016
    Publication date: September 27, 2018
    Applicant: NEC Corporation
    Inventors: Kazuhiko ISOYAMA, Koji KIDA, Hiroki TAGATO, Yoshiaki SAKAE, Junpei KAMIMURA, Yuji KOBAYASHI, Etsuko ICHIHARA
  • Publication number: 20180018384
    Abstract: The present invention provides an information processing system for more appropriately classifying elements that constitute an information processing device or the like. This information processing system is provided with: a means that, on the basis of information indicating the relationship between a plurality of elements that constitute a system, acquires, for first elements to be classified, a set of second elements capable of arriving at the first elements via a relationship of arbitrary numbers; and a means that, on the basis of the set corresponding to the first elements, classifies each of the first elements in any of a plurality of roles.
    Type: Application
    Filed: October 28, 2015
    Publication date: January 18, 2018
    Applicant: NEC Corporation
    Inventors: Takashi NOMURA, Koji KIDA, Kazuhiko ISOYAMA, Junpei KAMIMURA, Yoshiaki SAKAE, Yuji KOBAYASHI, Etsuko ICHIHARA
  • Patent number: 9853887
    Abstract: A delay tolerant network is built with the use of a plurality of information transfer devices each of which includes: a communication unit to communicate to and from another device within a communication range that is connected to the information transfer device; and a storing unit to store and keeps collected notification information, and each of which holds delay tolerant communication by exchanging the collected and kept notification information with another device when the exchange becomes possible. Each information transfer device includes a control unit to exchange environment information with another information transfer device, and to execute deriving processing an assigned range that is assigned autonomously to its own information transfer device, based on the environment information that is kept by its own information transfer device, through a planarization search processing in which a value is evened out between its own information transfer device and other information transfer devices.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: December 26, 2017
    Assignees: NEC CORPORATION, TOHOKU UNIVERSITY
    Inventors: Masatsugu Ogawa, Hisaya Wakayama, Yuma Matsuda, Junpei Kamimura, Masafumi Yano
  • Patent number: 9769241
    Abstract: A data transfer device calculates a compression performance value which represents a quantity of data that can be compressed per unit time and a transfer performance value which represents a quantity of data that can be transferred per unit time, and calculates, based on these values, a compression ratio which represents a ratio of data to be compressed and then transferred to total data to be transferred. The data transfer device extracts, from a storage unit which stores data, the data to be transferred, and then compresses part of the extracted data based on the compression ratio, and transfers the compressed data and remaining data to another device. The compression and transfer processes are performed in parallel.
    Type: Grant
    Filed: July 4, 2013
    Date of Patent: September 19, 2017
    Assignee: NEC CORPORATION
    Inventors: Masumi Ichien, Masaki Kan, Junpei Kamimura, Norihisa Iga