Patents by Inventor Takeshi Yagi

Takeshi Yagi 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: 20200213314
    Abstract: An account identification apparatus sets browsing authority for each of accounts such that browsing permission/prohibition is different for each of Web pages. Furthermore, the account identification apparatus causes a user terminal having accessed a predetermined Web site to transmit a request to each of the Web pages so as to acquire information about browsing permission/prohibition for each of the Web pages with regard to the user terminal and uses the acquired information about browsing permission/prohibition to identify an account with which the user terminal has logged in.
    Type: Application
    Filed: May 24, 2018
    Publication date: July 2, 2020
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takuya WATANABE, Eitaro SHIOJI, Mitsuaki AKIYAMA, Takeshi YAGI, Takeo HARIU
  • Patent number: 10701087
    Abstract: A browser emulator manager causes a browser emulator(s) to access a website. The browser emulator traces content interpretation and script execution on a browser that have occurred by access to the website. When detecting transfer, the browser emulator records, in transfer information, a transfer method, a transfer source URL, and a transfer destination URL thereof. When detecting the script execution, the browser emulator records, in the transfer information, an execution method and an execution source script thereof. A graph construction unit constructs a directed graph on the basis of the transfer information. Thereafter, a graph analysis unit specifies places of content and a script causing the transfer by tracing the directed graph.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: June 30, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yuta Takata, Mitsuaki Akiyama, Takeshi Yagi
  • Patent number: 10701085
    Abstract: Communication partners known to be malignant or benign are input to a known communication partner input unit, a subject communication partner whose malignancy is to be calculated is input to a subject communication partner input unit, a characteristic extractor extracts changes over time in whether the known communication partners and the subject communication partner are listed at a past given time point on a malignancy communication partner list and a benign communication partner list, and a malignancy calculator calculates malignancy of the subject communication partner on the basis of the characteristic information about the known communication partners and the subject communication partner.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: June 30, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daiki Chiba, Takeshi Yagi
  • Patent number: 10621347
    Abstract: A browser emulator is caused to emulate a client environment that is arbitrary values of types and versions of an OS, a browser, and a plugin. Further, the browser emulator monitors execution of a script or a plugin. A browser emulator manager then causes the browser emulator to patrol a predetermined Web site, and accumulates, in an analysis information database, results of access to the Web site in association with information on client environments emulated upon the access to the Web site. The browser emulator manager then refers to the accumulated results of access, and identifies a Web site that causes a difference between results of access according to a difference between client environments.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: April 14, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yuta Takata, Mitsuaki Akiyama, Takeshi Yagi
  • Patent number: 10603687
    Abstract: A vibration data generation device that generates vibration data for a vibration reproduction device, which has a plurality of vibrators, in order to control each vibrators, includes an acquisition part that acquires information indicating a virtual vibration source which is input to an input part and a generation part that generates vibration data which includes a vibration pattern of each of the plurality of vibrators of the vibration reproduction device for reproducing a position of the acquired virtual vibration source.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: March 31, 2020
    Assignee: NIKON CORPORATION
    Inventors: Mikiya Tanaka, Takeshi Yagi
  • Publication number: 20200042695
    Abstract: An extracting unit randomly extracts a block from among the blocks of instruction strings constituting the byte code of a first program and, at the time of execution of the first program, extracts the blocks which are invariably executed before the randomly-extracted block. A dividing unit randomly divides, into a plurality of blocks, the instruction strings constituting the byte code of a second program which enables detection of tampering of the first program. An inserting unit inserts the plurality of blocks, which are obtained by division by the dividing unit, at different positions in the block extracted by the extracting unit, while maintaining the execution sequence written in the second program.
    Type: Application
    Filed: September 22, 2017
    Publication date: February 6, 2020
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Fumihiro KANEI, Mitsuaki AKIYAMA, Yuta TAKATA, Takeshi YAGI
  • Publication number: 20200045077
    Abstract: An attack countermeasure determination includes a domain name input unit that receives any domain name as input, and acquires setting information corresponding to the domain name, registration information corresponding to the domain name, and external information corresponding to an internet protocol (IP) address corresponding to the domain name, as feature information on the domain name, an attack countermeasure determination unit that specifies a pre-designated category for the domain name on the basis of the feature information and determines, in a stepwise manner, an attack countermeasure against the domain name in accordance with the specified category, and an attack countermeasure information output unit that outputs attack countermeasure information corresponding to the attack countermeasure.
    Type: Application
    Filed: August 22, 2017
    Publication date: February 6, 2020
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daiki CHIBA, Mitsuaki AKIYAMA, Takeshi YAGI
  • Publication number: 20200012042
    Abstract: An optical fiber manufacturing method includes setting a first holding member and a rod inside a glass pipe, the first holding member made of glass and having plural holes formed, so that the rod is supported by the first holding member; filling glass particles between the rod and a glass pipe inner wall; holding the rod such that the rod and the filled glass particles are enclosed by the glass pipe inner wall and the first and second holding members, and sealing one end of the glass pipe and manufacturing an intermediate; and manufacturing an optical fiber from the intermediate, wherein a bulk density of the first and second holding members is set with reference to a bulk density of a filling portion made from the glass particles, and the predetermined range is determined according to a core diameter permissible variation range in its longitudinal direction.
    Type: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    Applicants: FURUKAWA ELECTRIC CO., LTD., NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Shinichi ARAI, Harumi Inaba, Shigeto Matsumoto, Takeshi Yagi, Shinichi Aozasa, Kyozo Tsujikawa, Kazuhide Nakajima
  • Publication number: 20200010654
    Abstract: A polyolefin resin composite material, containing: a polyolefin resin; and 10 to 150 parts by mass of cellulose fibers with respect to 100 parts by mass of the polyolefin resin, wherein an area of aggregates of the cellulose fibers is less than 20,000 ?m2; and a method of producing the same.
    Type: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Jae Kyung Kim, Eiji Kozawa, Yasuo Nakajima, Takeshi Yagi
  • Publication number: 20190391806
    Abstract: A determination apparatus includes: a feature information extraction unit configured to extract, as feature information, function definition information as information for defining a function and function calling order information in which function names to be executed in the function are written in execution order from each of an input source code and a byte code of a program; and a similarity calculation unit-configured to calculate a similarity between a function in the source code and a function in the byte code by using the feature information extracted by the feature information extraction unit.
    Type: Application
    Filed: August 23, 2017
    Publication date: December 26, 2019
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Fumihiro KANEI, Mitsuaki AKIYAMA, Yuta TAKATA, Takeshi YAGI
  • Patent number: 10511618
    Abstract: A malicious URL candidate extraction device extracts, from an access log including URLs accessed from a managed network, a known malicious URL excluded access log obtained by excluding an access log to known malicious URLs. The malicious URL candidate extraction device creates a minor URL list obtained by preferentially extracting, from URLs indicated in the known malicious URL excluded access log, URLs having a small number of times of access from the managed network. The malicious URL candidate extraction device also creates a popular URL excluded list obtained by preferentially excluding URLs having a large number of times of access from the managed network during a predetermined period of time. The malicious URL candidate extraction device outputs these lists as a malicious URL candidate list.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: December 17, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tohru Sato, Kazunori Kamiya, Takeshi Yagi, Kensuke Nakata, Daiki Chiba
  • Patent number: 10496906
    Abstract: An inkjet printer injects first ink of a plurality of colors and second ink. An extraction condition setter sets an extraction condition to extract a portion of, or an entirety of, ink dots of the first ink of each of the plurality of colors. An extractor extracts an underlying layer dot group from ink dots of the first ink of each of the plurality of colors based on the extraction condition. Such a plurality of underlying layer dot groups and ink dots of the second ink form a first printing layer. An image dot group including at least the ink dots, of the first ink, other than the underlying dot groups forms at least one additional printing layer.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: December 3, 2019
    Assignee: ROLAND DG CORPORATION
    Inventors: Yuya Nishihara, Katsuo Ikehata, Yoshinari Ogura, Yasuhito Fujita, Seishin Yoshida, Koji Takahashi, Takeshi Yagi
  • Publication number: 20190356675
    Abstract: A combining apparatus has an acquiring unit that acquires script codes included in a website and having been divided and written at plural locations in the website; and a code combining unit that combines a plurality of the divided script codes written therein, based on a dependency between data in the divided script codes written therein acquired by the acquiring unit, or a dynamic generation relation arising from execution of the divided script codes written therein.
    Type: Application
    Filed: August 9, 2017
    Publication date: November 21, 2019
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yuta TAKATA, Mitsuaki AKIYAMA, Takeshi YAGI
  • Patent number: 10462168
    Abstract: An access classifying device includes a tree building unit, a similarity-degree calculating unit, and a classifying unit. The tree building unit generates multiple trees, in which a first server and multiple second servers are nodes and commands for automatically transferring the sequence of accesses from the above-described first server to the above-described second servers are edges. The similarity-degree calculating unit calculates the degree of similarity between the above-described trees in accordance with the degree of matching between partial trees included in each of the above-described trees generated. The classifying unit classifies the above-described access in accordance with the above-described degree of similarity calculated.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: October 29, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Toshiki Shibahara, Takeshi Yagi, Mitsuaki Akiyama, Yuta Takata
  • Patent number: 10462158
    Abstract: A URL selection method disclosed in the present application includes a first extraction step and a second extraction step. The first extraction step extracts URLs up to an upper limit value of the number of URLs set to each of URL groups in a range where a total number of URLs is within a predetermined number of URLs, in order of priority set to each of the URL groups, from each of the URL groups identified by analyzing a traffic log by techniques in different categories. The second extraction step further extracts URLs within the predetermined number of URLs, based on the priority, when the total number of URLs extracted from each of the URL groups in the first extraction step is less than the predetermined number of URLs.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: October 29, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Takeshi Yagi, Daiki Chiba, Kazunori Kamiya, Tohru Sato, Kensuke Nakata
  • Publication number: 20190325136
    Abstract: An analysis apparatus has a transfer path matching unit that is provided with a real browser log La and a browser emulator log Lb as input and identifies, as a specific transfer path, a transfer path that is not transferred to a malicious URL on a pseudo-browser where the transfer path is transferred to the malicious URL on a real browser, based on the malicious URL information in a malicious URL database, and an analysis avoidance code identification unit that identifies an analysis avoidance code that avoids analysis by utilizing a browser-specific function or an implementation difference between the real-browser and the pseudo-browser, among script codes that are executed on a website, based on the specific transfer path.
    Type: Application
    Filed: August 10, 2017
    Publication date: October 24, 2019
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yuta TAKATA, Mitsuaki AKIYAMA, Takeshi YAGI
  • Patent number: 10429805
    Abstract: A control system includes: a first transmitter; a second transmitter; and a reception device.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: October 1, 2019
    Assignee: NIKON CORPORATION
    Inventor: Takeshi Yagi
  • Publication number: 20190297092
    Abstract: An access classification device includes: a processor configured to: construct a plurality of trees in each of which at least a first destination and a second destination are set as nodes, content information corresponding to the nodes is added to the nodes, and an instruction to transfer an access from the first destination to the second destination is set as an edge; associate nodes of the plurality of trees with each other for the plurality of trees constructed, based on similarity between local structures of the trees; calculate similarity between the nodes associated with each other in the plurality of trees, based on the content information added to the nodes, and calculate similarity between the plurality of trees using the calculated similarity between the nodes associated with each other; and classify the access into a set with similar features, based on the similarity calculated.
    Type: Application
    Filed: May 15, 2017
    Publication date: September 26, 2019
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Toshiki SHIBAHARA, Takeshi YAGI, Mitsuaki AKIYAMA, Yuta TAKATA
  • Publication number: 20190292360
    Abstract: A glass fiber-reinforced polyolefin resin material, containing: a glass fiber; and a thermoplastic resin, wherein said thermoplastic resin contains: at least, a specific graft-modified polypropylene, wherein, with respect to the graft-modified polypropylene, each specific amounts of the glass fiber and a compound or polymer having an acid anhydride structure are contained, and wherein, in the content of a graft-modification component in the graft-modified polypropylene, the content of a component obtained from the (meth)acrylate containing an epoxy group is 0.5 or more and 10 or less parts by mass with respect to 100 parts by mass of said polypropylene, and a component obtained from the aromatic vinyl compound has a mass equal to or less than said component obtained from the (meth)acrylate; a composition for said resin material; a method of producing the same; and a composite.
    Type: Application
    Filed: May 17, 2019
    Publication date: September 26, 2019
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Eiji KOZAWA, Sinji SATOH, Keiko CHIKAZAWA, Yasuo NAKAJIMA, Takeshi YAGI, Koichi MAENO, Satoshi TAKAMURA
  • Publication number: 20190285823
    Abstract: A method for manufacturing an intermittent bonding type optical fiber ribbon which is capable of forming non-connection portions and intermittent connection portions between adjacent coated optical fibers formed into an optical fiber ribbon by performing a laser processing for the ribbon through irradiation with a pulse laser light, thereby making it possible to rapidly form the intermittent connection portions and the non-connection portions while maintaining high linear velocity of the coated optical fiber. The non-connection portions and the intermittent connection portions are formed in the obtained intermittent bonding type optical fiber ribbon through the irradiation with the pulse laser light, so the intermittent bonding type optical fiber ribbon becomes the intermittent bonding type optical fiber ribbon, which is capable of securing operability during collective connection and surely being subjected to an intermediate branching without damaging cable characteristics during high density mounting.
    Type: Application
    Filed: May 31, 2019
    Publication date: September 19, 2019
    Applicant: Furukawa Electric Co., Ltd.
    Inventors: Hiroki TANAKA, Kenji YOKOMIZO, Tomohiro ISHIMURA, Yutaka HOSHINO, Masaki IWAMA, Eisuke OTANI, Shunichi MATSUSHITA, Yoshihiro ARASHITANI, Takeshi YAGI