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).
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Patent number: 10887331Abstract: 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: GrantFiled: June 17, 2014Date of Patent: January 5, 2021Assignee: NEC CoporationInventors: Takashi Nomura, Koji Kida, Junpei Kamimura, Yoshiaki Sakae, Etsuko Katsuda, Kazuhiko Isoyama, Kentaro Yamasaki, Yuji Kobayashi
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Patent number: 10860406Abstract: 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: GrantFiled: March 18, 2015Date of Patent: December 8, 2020Assignee: NEC CorporationInventors: Takashi Nomura, Koji Kida, Junpei Kamimura, Yoshiaki Sakae, Etsuko Katsuda, Kazuhiko Isoyama, Kentaro Yamasaki, Yuji Kobayashi
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Patent number: 10789118Abstract: 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: GrantFiled: March 18, 2015Date of Patent: September 29, 2020Assignee: NEC CorporationInventors: Takashi Nomura, Koji Kida, Junpei Kamimura, Yoshiaki Sakae, Etsuko Katsuda, Kazuhiko Isoyama, Kentaro Yamasaki, Yuji Kobayashi
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Patent number: 9959427Abstract: 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: GrantFiled: April 14, 2015Date of Patent: May 1, 2018Assignee: NEC CORPORATIONInventors: Sawako Mikami, Kenichiro Fujiyama, Kentaro Yamasaki, Yuji Kobayashi
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Publication number: 20170132060Abstract: 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: ApplicationFiled: March 18, 2015Publication date: May 11, 2017Applicant: NEC CorporationInventors: Takashi NOMURA, Koji KIDA, Junpei KAMIMURA, Yoshiaki SAKAE, Etsuko KATSUDA, Kazuhiko ISOYAMA, Kentaro YAMASAKI, Yuji KOBAYASHI
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Publication number: 20170093900Abstract: 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: ApplicationFiled: June 17, 2014Publication date: March 30, 2017Applicant: NEC CorporationInventors: Takashi NOMURA, Koji KIDA, Junpei KAMIMURA, Yoshiaki SAKAE, Etsuko KATSUDA, Kazuhiko ISOYAMA, Kentaro YAMASAKI, Yuji KOBAYASHI
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Publication number: 20170075746Abstract: 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: ApplicationFiled: March 18, 2015Publication date: March 16, 2017Applicant: NEC CorporationInventors: Takashi NOMURA, Koji KIDA, Junpei KAMIMURA, Yoshiaki SAKAE, Etsuko KATSUDA, Kazuhiko ISOYAMA, Kentaro YAMASAKI, Yuji KOBAYASHI
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Publication number: 20160350557Abstract: 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: ApplicationFiled: January 14, 2015Publication date: December 1, 2016Applicant: NEC CorporationInventors: Sawako MIKAMI, Kenichiro FUJIYAMA, Kentaro YAMASAKI, Yuji KOBAYASHI
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Publication number: 20150210207Abstract: 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: ApplicationFiled: January 9, 2015Publication date: July 30, 2015Inventors: Kiyoteru MORI, Kentaro Yamasaki, Yu Tomoeda, Mototatsu Isaji
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Patent number: 8849250Abstract: 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: GrantFiled: March 18, 2013Date of Patent: September 30, 2014Assignee: NEC CorporationInventor: Kentaro Yamasaki
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Patent number: 8776172Abstract: The load of setting and managing the access rule for access control is large.Type: GrantFiled: March 15, 2010Date of Patent: July 8, 2014Assignee: NEC CorporationInventor: Kentaro Yamasaki
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Publication number: 20130235995Abstract: 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: ApplicationFiled: March 18, 2013Publication date: September 12, 2013Inventor: Kentaro YAMASAKI
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Patent number: 8428556Abstract: 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: GrantFiled: July 10, 2008Date of Patent: April 23, 2013Assignee: NEC CorporationInventor: Kentaro Yamasaki
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Patent number: 8386730Abstract: 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: GrantFiled: August 22, 2008Date of Patent: February 26, 2013Assignee: NEC CorporationInventor: Kentaro Yamasaki
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Publication number: 20130013611Abstract: 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: ApplicationFiled: March 28, 2011Publication date: January 10, 2013Applicant: NEC CORPORATIONInventor: Kentaro Yamasaki
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Publication number: 20120109990Abstract: 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: ApplicationFiled: July 7, 2010Publication date: May 3, 2012Applicant: NEC CORPORATIONInventor: Kentaro Yamasaki
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Publication number: 20120036555Abstract: The load of setting and managing the access rule for access control is large.Type: ApplicationFiled: March 15, 2010Publication date: February 9, 2012Applicant: NEC CORPORATIONInventor: Kentaro Yamasaki
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Publication number: 20110055502Abstract: 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: ApplicationFiled: August 22, 2008Publication date: March 3, 2011Inventor: Kentaro Yamasaki
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Publication number: 20100197275Abstract: 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: ApplicationFiled: July 10, 2008Publication date: August 5, 2010Inventor: Kentaro Yamasaki
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Publication number: 20090251294Abstract: 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: ApplicationFiled: March 30, 2007Publication date: October 8, 2009Inventors: Masao Kawamura, Kou Takesaki, Kentaro Yamasaki