Patents by Inventor Kentaro Yamasaki

Kentaro Yamasaki 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: 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
  • Patent number: 9959427
    Abstract: An information determination apparatus includes a first storage unit configured to store stream data pieces obtained in time sequence; a first determining unit configured to determine whether the number of stream data pieces stored in the first storage unit is at least equal to a predetermined value; and a second determining unit configured to determine, when the number of the stream data pieces stored in the first storage unit is equal to or greater than the predetermined value, whether an individual can be identified based on a dataset composed of a plurality of the stream data pieces stored in the first storage unit, and output the dataset used for the determination and the determination result.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: May 1, 2018
    Assignee: NEC CORPORATION
    Inventors: Sawako Mikami, Kenichiro Fujiyama, Kentaro Yamasaki, Yuji Kobayashi
  • Publication number: 20170132060
    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: Application
    Filed: March 18, 2015
    Publication date: May 11, 2017
    Applicant: NEC Corporation
    Inventors: Takashi NOMURA, Koji KIDA, Junpei KAMIMURA, Yoshiaki SAKAE, Etsuko KATSUDA, Kazuhiko ISOYAMA, Kentaro YAMASAKI, Yuji KOBAYASHI
  • Publication number: 20170093900
    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: Application
    Filed: June 17, 2014
    Publication date: March 30, 2017
    Applicant: NEC Corporation
    Inventors: Takashi NOMURA, Koji KIDA, Junpei KAMIMURA, Yoshiaki SAKAE, Etsuko KATSUDA, Kazuhiko ISOYAMA, Kentaro YAMASAKI, Yuji KOBAYASHI
  • Publication number: 20170075746
    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: Application
    Filed: March 18, 2015
    Publication date: March 16, 2017
    Applicant: NEC Corporation
    Inventors: Takashi NOMURA, Koji KIDA, Junpei KAMIMURA, Yoshiaki SAKAE, Etsuko KATSUDA, Kazuhiko ISOYAMA, Kentaro YAMASAKI, Yuji KOBAYASHI
  • Publication number: 20160350557
    Abstract: An information determination apparatus includes a first storage unit configured to store stream data pieces obtained in time sequence; a first determining unit configured to determine whether the number of stream data pieces stored in the first storage unit is at least equal to a predetermined value; and a second determining unit configured to determine, when the number of the stream data pieces stored in the first storage unit is equal to or greater than the predetermined value, whether an individual can be identified based on a dataset composed of a plurality of the stream data pieces stored in the first storage unit, and output the dataset used for the determination and the determination result.
    Type: Application
    Filed: January 14, 2015
    Publication date: December 1, 2016
    Applicant: NEC Corporation
    Inventors: Sawako MIKAMI, Kenichiro FUJIYAMA, Kentaro YAMASAKI, Yuji KOBAYASHI
  • Publication number: 20150210207
    Abstract: A vehicle fog lamp includes a light source and reflective surface sections surrounding the light source. A screen light distribution pattern formed by illuminating light that is emitted from the light source and is reflected on the reflective surface section is divided into an outer pattern part and an inner pattern part. An upper end part of the outer pattern part is disposed above an upper end part of the inner pattern part.
    Type: Application
    Filed: January 9, 2015
    Publication date: July 30, 2015
    Inventors: Kiyoteru MORI, Kentaro Yamasaki, Yu Tomoeda, Mototatsu Isaji
  • Patent number: 8849250
    Abstract: Communication from inadmissible communication parties and communication accesses are excluded from an unspecified number of communication parties and communication accesses. A communication management system is provided with a communication device for communicating with communication parties connected through a communication network, a communication control device for controlling the communication, a communication history information memory device for storing communication history information indicative of communication history of the communication device, and a communication admissible party selecting device for selecting communication admissible parties who are admitted to communication with the communication device in accordance with the communication history information, wherein the communication control device has a communication admission control function to carry out admission control of communication from the selected communication parties.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: September 30, 2014
    Assignee: NEC Corporation
    Inventor: Kentaro Yamasaki
  • Patent number: 8776172
    Abstract: The load of setting and managing the access rule for access control is large.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: July 8, 2014
    Assignee: NEC Corporation
    Inventor: Kentaro Yamasaki
  • Publication number: 20130235995
    Abstract: Communication from inadmissible communication parties and communication accesses are excluded from an unspecified number of communication parties and communication accesses. A communication management system is provided with a communication device for communicating with communication parties connected through a communication network, a communication control device for controlling the communication, a communication history information memory device for storing communication history information indicative of communication history of the communication device, and a communication admissible party selecting device for selecting communication admissible parties who are admitted to communication with the communication device in accordance with the communication history information, wherein the communication control device has a communication admission control function to carry out admission control of communication from the selected communication parties.
    Type: Application
    Filed: March 18, 2013
    Publication date: September 12, 2013
    Inventor: Kentaro YAMASAKI
  • Patent number: 8428556
    Abstract: Communication from inadmissible communication parties and communication accesses are excluded from an unspecified number of communication parties and communication accesses. A communication management system is provided with a communication device for communicating with communication parties connected through a communication network, a communication control device for controlling the communication, a communication history information memory device for storing communication history information indicative of communication history of the communication device, and a communication admissible party selecting device for selecting communication admissible parties who are admitted to communication with the communication device in accordance with the communication history information, wherein the communication control device has a communication admission control function to carry out admission control of communication from the selected communication parties.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: April 23, 2013
    Assignee: NEC Corporation
    Inventor: Kentaro Yamasaki
  • Patent number: 8386730
    Abstract: It is an object to provide a data logger which solves a problem in which data required to analyze a cause of occurrence of abnormality cannot be acquired. Temporary memory 102 stores newer data among data sequentially outputted from measurer 101 wherein the number of the newer data corresponds to a specific number of times. Manager 103 repeatedly calculates an index value indicative of stability of the data outputted from measurer 101 based on the data stored in temporary memory 102 at least until the index value satisfies a predetermined stability condition. Further, if manager 103 accepts an abnormal value trigger, manager 103 sequentially stores the data outputted from measurer 101 in main memory 104. When the index value satisfying the stability condition is calculated by manager 103, manager 103 stops saving the data in main memory 104.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: February 26, 2013
    Assignee: NEC Corporation
    Inventor: Kentaro Yamasaki
  • Publication number: 20130013611
    Abstract: A grouping apparatus (1) to allow a user to join or leave one or more groups according to a state of the user, has a change storage unit (13) that associates and stores a key, which is generated based on a first attribute value to represent the state of the user at a first time point and a second attribute value to represent the state at a second time point, which is later than the first time point, and a member list difference, which shows a difference, between the first time point and the second time point, in a list of members belonging to a group which the user is allowed to join or leave, as the state of the user changes from the state at the first time point to the state at the second time point.
    Type: Application
    Filed: March 28, 2011
    Publication date: January 10, 2013
    Applicant: NEC CORPORATION
    Inventor: Kentaro Yamasaki
  • Publication number: 20120109990
    Abstract: An evaluation target information processing means (15) inputs evaluation target information having M attribute information items. A combination generating means (14) extracts and combines 1 to M attribute information items from the evaluation target information to generate combinations. An attribute information linking means (12) generates, for each of the combinations, a link attribute value to which the attribute values of the attribute information items are linked. A hash generation means (13) converts the link attribute value to a hash value. A hash table (19) stores registered information so as to correspond to the hash value corresponding to the registered information. An information searching means (18) searches the hash table (19) and extracts registered information registered so as to correspond to the hash value that matches any of the hash values converted by the hash generation means (13).
    Type: Application
    Filed: July 7, 2010
    Publication date: May 3, 2012
    Applicant: NEC CORPORATION
    Inventor: Kentaro Yamasaki
  • Publication number: 20120036555
    Abstract: The load of setting and managing the access rule for access control is large.
    Type: Application
    Filed: March 15, 2010
    Publication date: February 9, 2012
    Applicant: NEC CORPORATION
    Inventor: Kentaro Yamasaki
  • Publication number: 20110055502
    Abstract: It is an object to provide a data logger which solves a problem in which data required to analyze a cause of occurrence of abnormality cannot be acquired. Temporary memory 102 stores newer data among data sequentially outputted from measurer 101 wherein the number of the newer data corresponds to a specific number of times. Manager 103 repeatedly calculates an index value indicative of stability of the data outputted from measurer 101 based on the data stored in temporary memory 102 at least until the index value satisfies a predetermined stability condition. Further, if manager 103 accepts an abnormal value trigger, manager 103 sequentially stores the data outputted from measurer 101 in main memory 104. When the index value satisfying the stability condition is calculated by manager 103, manager 103 stops saving the data in main memory 104.
    Type: Application
    Filed: August 22, 2008
    Publication date: March 3, 2011
    Inventor: Kentaro Yamasaki
  • Publication number: 20100197275
    Abstract: Communication from inadmissible communication parties and communication accesses are excluded from an unspecified number of communication parties and communication accesses. A communication management system is provided with a communication device for communicating with communication parties connected through a communication network, a communication control device for controlling the communication, a communication history information memory device for storing communication history information indicative of communication history of the communication device, and a communication admissible party selecting device for selecting communication admissible parties who are admitted to communication with the communication device in accordance with the communication history information, wherein the communication control device has a communication admission control function to carry out admission control of communication from the selected communication parties.
    Type: Application
    Filed: July 10, 2008
    Publication date: August 5, 2010
    Inventor: Kentaro Yamasaki
  • Publication number: 20090251294
    Abstract: As an assembly 50 of articles of management targets, a serial number that becomes a consecutive number is recorded in each of RFID tags 1, 2, . . . , 12 attended to cardboard boxes 31, 32, . . . , 42 in which articles are stored and a flag, by which the total number of articles that becomes a management target of articles can be calculated, is recorded in at least one of RFID tags. For example, the serial numbers are consecutive numbers starting from one, and the total number of articles is recorded in the flags of all of the RFID tags, or an end flag indicating the last is recorded in the flag of the last RFID tag. The serial numbers are consecutive numbers starting an arbitrary number, a start flag indicating the first is recorded in the flag of the first RFID tag and an end flag indicating the last is recorded in the flag of the last RFID tag, or the total number is recorded in the flag of the last RFID tag.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 8, 2009
    Inventors: Masao Kawamura, Kou Takesaki, Kentaro Yamasaki