Patents Assigned to NTT Advanced Technology Corporation
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Patent number: 11911805Abstract: An optical connector cleaning tool includes a fitting portion (44) fitted in the first or second hole (36, 37) of a connection component (32) into which a compact dual core optical connector is fitted on one end side and a cleaning medium (45) projecting from the fitting portion (44). The fitting portion (44) is formed to have a shape by which the fitting portion (44) is fitted in the first or second hole (36, 37) in each of the first and second postures as postures shifted through 180° with respect to as the center the middle (P2) of a virtual straight line connecting the centers of the two ferrules when viewed from an axial direction of the compact dual core optical connector. The fitting portion (44) contacts one ferrule in a state in which the fitting portion (44) is set in the first posture. The fitting portion (44) contacts the other ferrule in a state in which the fitting portion (44) is set in the second posture.Type: GrantFiled: January 22, 2020Date of Patent: February 27, 2024Assignees: NTT ADVANCED TECHNOLOGY CORPORATION, SENKO ADVANCED COMPONENTS, INC.Inventors: Etsu Hashimoto, Yoshiaki Haga, Kazutoshi Ando, Yohei Omodaka
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Patent number: 11880073Abstract: An optical connector cleaning tool includes a cleaning portion (101), a container (102) configured to store a cleaning liquid (121), and an atomizer (103) configured to atomize the cleaning liquid (121) stored in the container (102) by ultrasonic atomization. The atomizer (103) includes an atomizing separation portion (105) configured to cover a liquid supply port (104) and pass not a liquid but mist. In addition, the cleaning tool includes a control circuit (107) configured to control an operation time of the atomizer (103) by a set time.Type: GrantFiled: November 21, 2019Date of Patent: January 23, 2024Assignee: NTT ADVANCED TECHNOLOGY CORPORATIONInventors: Shuichiro Asakawa, Kenta Arai, Etsu Hashimoto
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Publication number: 20230239379Abstract: A data acquisition device includes a valid data acquirer configured to acquire valid data from communication data based on an analysis parameter including an offset from a head of the communication data to the valid data and a data length of the valid data and output the acquired valid data.Type: ApplicationFiled: January 19, 2023Publication date: July 27, 2023Applicant: NTT Advanced Technology CorporationInventors: Yuta UKON, Masaru KATAYAMA, Akihiko MIYAZAKI
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Patent number: 11602820Abstract: In a polishing apparatus an optical connector polishing jig holds the MT ferrule provided at the connection end portion of the optical connector, the optical connector polishing jig includes: a cylinder base; a cylinder shaft held on the cylinder base to be capable of moving in the up-down direction; and a set block connected to an end of the cylinder shaft and having a hole into which the MT ferrule is inserted and in which fixing means for adjusting the pressing force and fixing the MT ferrule is inserted, and a surface of the fixing means that comes into contact with the MT ferrule has a protrusion that partially protrudes to apply a pressing force to the MT ferrule such that when the MT ferrule is fixed, an end surface of the MT ferrule is slightly deformed and a center portion of the end surface in a longitudinal direction swells.Type: GrantFiled: March 6, 2018Date of Patent: March 14, 2023Assignee: NTT ADVANCED TECHNOLOGY CORPORATIONInventors: Naoki Sugita, Toshinori Kimura, Masaaki Konishi, Kenji Aoki
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Patent number: 11588713Abstract: A virtual network monitoring apparatus includes an acquisition unit configured to acquire first network information, the first network information being network information possessed by a virtual machine control unit functioning as an orchestrator, and second network information, the second network information being network information possessed by a virtual machine generated by the virtual machine control unit among network information on a virtual network to which the virtual machine is connected, and a generation unit configured to generate a traffic filter indicating a filter for traffic flowing through the virtual network on the basis of the first network information and the second network information.Type: GrantFiled: December 10, 2019Date of Patent: February 21, 2023Assignee: NTT Advanced Technology CorporationInventors: Yuki Takano, Tomokazu Tachibana, Masatsugu Fukuda
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Publication number: 20220254141Abstract: An image processing device includes a search scenario acquisition unit and a search unit. The search scenario acquisition unit acquires a search scenario in which one or more search processes of searching for an image using an image feature based on a target image, which is an image of a search target, in a search condition are combined. The search unit searches for a matching image, which is an image to be searched, using a combination of the search processes represented by the search scenario and outputs search result information representing an area in the matching image detected through the search.Type: ApplicationFiled: September 3, 2020Publication date: August 11, 2022Applicant: NTT Advanced Technology CorporationInventors: Tomoki OTSUKA, Naoiku KANDA, Hidemasa SHIMADA, Jun TAKAHASHI
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Publication number: 20220197870Abstract: A scenario execution system includes a scenario execution terminal, a log management device, and a storage device. The scenario execution terminal includes a scenario execution unit and an event notification unit. The scenario execution unit executes a scenario file having a scenario indicating a procedure of operations in the scenario execution terminal described therein. The event notification unit notifies the log management device of information on an event generated by the scenario execution unit executing the scenario file. The log management device includes a log recording unit that receives the information on the event from the scenario execution terminal and records log data having the received information on the event set therein on the storage device. The storage device adds, to the log data, information uniquely generated on the basis of log data recorded before such log data and stores resultant log data.Type: ApplicationFiled: December 14, 2021Publication date: June 23, 2022Applicant: NTT Advanced Technology CorporationInventors: Akinori YAMAMOTO, Yusuke Tsujikawa, Takashi Hattori, Shuichi Miyazaki
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Publication number: 20220137307Abstract: An optical connector cleaning tool includes a cleaning tool main body, a feed-side bobbin, a cleaning head (cleaning portion), a winding-side bobbin, a moving body that moves at the time of cleaning, a feed mechanism that sends an unused cleaning medium in synchronism with the moving body, and a winding mechanism that drives the winding-side bobbin. The feed mechanism moves a turn-back portion at one point where the cleaning medium is turned back in a direction to separate from the winding-side bobbin. The winding mechanism includes a driving piece that engages with a rotation body of the winding-side bobbin. The driving piece slips with respect to the rotation body when a load to press engaging projections of the rotation body has reached a predetermined load.Type: ApplicationFiled: November 26, 2019Publication date: May 5, 2022Applicant: NTT ADVANCED TECHNOLOGY CORPORATIONInventors: Terumasa KAMOUCHI, Kazutoshi ANDO, Etsu HASHIMOTO
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Publication number: 20210405616Abstract: A scenario providing device stores a scenario file, a customization file for stating a setting value of a variable used for executing a process constituting a scenario, and a menu for selecting the scenario. A menu providing unit of the scenario providing device causes a scenario execution terminal to display the menu and decides the scenario in accordance with an option selected in the scenario execution terminal from options included in the displayed menu. The scenario providing unit of the scenario providing device transmits the scenario file of the decided scenario and the customization file. A scenario execution unit of the scenario execution terminal substitutes, in the scenario indicated by the scenario file, the setting value of the variable stated in the customization file by a user and executes the scenario.Type: ApplicationFiled: December 4, 2019Publication date: December 30, 2021Applicant: NTT Advanced Technology CorporationInventors: Akinori YAMAMOTO, Takashi HATTORI, Akiko NOGUCHI, Shuichi MIYAZAKI
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Publication number: 20210176149Abstract: A virtual network monitoring apparatus includes an acquisition unit configured to acquire first network information, the first network information being network information possessed by a virtual machine control unit functioning as an orchestrator, and second network information, the second network information being network information possessed by a virtual machine generated by the virtual machine control unit among network information on a virtual network to which the virtual machine is connected, and a generation unit configured to generate a traffic filter indicating a filter for traffic flowing through the virtual network on the basis of the first network information and the second network information.Type: ApplicationFiled: December 10, 2019Publication date: June 10, 2021Applicant: NTT Advanced Technology CorporationInventors: Yuki TAKANO, Tomokazu TACHIBANA, Masatsugu FUKUDA
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Patent number: 10981256Abstract: A polishing method and a polishing film are provided for automatically performing multi-stage batch polishing on an end surface of a workpiece. An end surface of a workpiece and a polishing plate are moved relative to each other while bringing the end surface of the workpiece into contact with a polishing film of the polishing plate. The end surface is moved in a circular motion with a diameter 2 R relative to the polishing film; the center of the circular motion is moved linearly by a distance S on the polishing film; the polishing film is provided with first, second, and third polishing surfaces; and the polishing film is further provided with cleaning surfaces between the polishing surfaces so that the range of the distance S in which one rotation in the circular motion crosses over different polishing surfaces is reduced, or does not cross over different polishing surfaces.Type: GrantFiled: May 3, 2018Date of Patent: April 20, 2021Assignees: NTT Advanced Technology Corporation, Mipox CorporationInventors: Kenji Aoki, Naoki Sugita, Toshihiro Igawa, Mitsunobu Shishido
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Patent number: 10908367Abstract: An optical connector cleaning tool includes a cleaning head that faces the lens (cleaning target portion) of an optical connector, and a cleaning cloth (3) that moves with respect to the cleaning head in a state in which the cleaning cloth is in contact with the lens. The cleaning cloth (3) is formed into a strip shape by a fabric (25) including a plurality of warps (28) in which a longitudinal direction thereof is a moving direction of the cleaning cloth moving with respect to the cleaning head. The warp (28) includes a first chemical fiber (31) and a second chemical fiber (32). One chemical fiber of the first chemical fiber (31) and the second chemical fiber (32) is in a stretched state, and the other chemical fiber is in a slack state. It is possible to provide an optical connector cleaning tool capable of cleaning a lens-type optical connector.Type: GrantFiled: February 8, 2016Date of Patent: February 2, 2021Assignee: NTT ADVANCED TECHNOLOGY CORPORATIONInventors: Masayuki Murakami, Takenobu Hamano, Terumasa Kamouchi
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Patent number: 10495734Abstract: Provided is a position locating instrument for a position locating method in which position locating instruments that transmit and receive light beams are arranged in series connection. The position locating instruments reduce error factors and improve measurement accuracy by providing all or some of necessary position and attitude parameters. The position locating instrument has at least one light emission port through which light from a wavelength-changeable light source is emitted; and at least one light receiving port that receives light emitted or reflected by an adjacent position locating instrument. The light emitted from the light emission port has a fanlike pattern and has an emission angle varying, as a monotonic function of a wavelength of the light, in a direction perpendicular to a direction in which the light spreads in the fanlike pattern.Type: GrantFiled: January 6, 2016Date of Patent: December 3, 2019Assignee: NTT ADVANCED TECHNOLOGY CORPORATIONInventors: Shogo Yagi, Fumio Saito, Kazunori Naganuma, Eiichi Sugai, Tohru Kodaira, Akira Sawaguchi, Hideki Hagino, Takeshi Watanabe, Noriyuki Ishidu, Hiizu Takemura
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Patent number: 10205296Abstract: Provided is a swept light source including one end surface coupled to a wavelength filter constituted of a diffraction grating and an end mirror via a light deflector and another end surface including a gain medium facing an output coupling mirror and which configures a laser cavity between the end mirror and the output coupling mirror, wherein a drive voltage having an AC voltage on which a DC bias voltage is superimposed is output from a control voltage source of the light deflector to an electrode pair of an electro-optic crystal, light is radiated from a light emitter to the electro-optic crystal, and incident light from the gain medium incident along an optical axis perpendicular to a direction of an electric field formed by the control voltage is deflected in a direction parallel to the electric field, so that wavelength sweeping is performed.Type: GrantFiled: June 7, 2017Date of Patent: February 12, 2019Assignees: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, HAMAMATSU PHOTONICS K.K., NTT Advanced Technology CorporationInventors: Seiji Toyoda, Yuzo Sasaki, Takashi Sakamoto, Joji Yamaguchi, Tadashi Sakamoto, Koei Yamamoto, Masatoshi Fujimoto, Mahiro Yamada, Shogo Yagi, Yukihiko Ushiyama, Eiichi Sugai, Koji Yoneyama, Kazuo Fujiura
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Patent number: 9958619Abstract: An optical connector cleaning tool includes a supply reel (11) having a belt-like cleaning cloth (3), and a winding bobbin (12) for winding the cleaning cloth (3). The optical connector cleaning tool also includes a housing (7) which rotatably supports the supply reel (11) and winding bobbin (12), a cleaning head (13) which comes in contact with the cleaning cloth (3), and a pressing member (5) which supports the cleaning head (13) and moves in a longitudinal direction with respect to the housing (7). The optical connector cleaning tool further includes a slide spring (53) which biases the pressing member (5) forward, and a transmission mechanism (33) which transmits an action of the pressing member (5) to the winding bobbin (12). The transmission mechanism (33) includes a rack (32) on the side of the pressing member (5), and a pinion on the side of the winding bobbin (12).Type: GrantFiled: March 13, 2013Date of Patent: May 1, 2018Assignees: NTT ADVANCED TECHNOLOGY CORPORATION, NTT-AT CREATIVE CORPORATIONInventors: Terumasa Kamouchi, Masayuki Murakami, Masaaki Konishi, Takenobu Hamano, Setsuo Shoji
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Publication number: 20180067268Abstract: An optical connector cleaning tool includes a cleaning head that faces the lens (cleaning target portion) of an optical connector, and a cleaning cloth (3) that moves with respect to the cleaning head in a state in which the cleaning cloth is in contact with the lens. The cleaning cloth (3) is formed into a strip shape by a fabric (25) including a plurality of warps (28) in which a longitudinal direction thereof is a moving direction of the cleaning cloth moving with respect to the cleaning head. The warp (28) includes a first chemical fiber (31) and a second chemical fiber (32). One chemical fiber of the first chemical fiber (31) and the second chemical fiber (32) is in a stretched state, and the other chemical fiber is in a slack state. It is possible to provide an optical connector cleaning tool capable of cleaning a lens-type optical connector.Type: ApplicationFiled: February 8, 2016Publication date: March 8, 2018Applicant: NTT Advanced Technology CorporationInventors: Masayuki MURAKAMI, Takenobu HAMANO, Terumasa KAMOUCHI
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Publication number: 20170358899Abstract: Provided is a swept light source including one end surface coupled to a wavelength filter constituted of a diffraction grating and an end mirror via a light deflector and another end surface including a gain medium facing an output coupling mirror and which configures a laser cavity between the end mirror and the output coupling mirror, wherein a drive voltage having an AC voltage on which a DC bias voltage is superimposed is output from a control voltage source of the light deflector to an electrode pair of an electro-optic crystal, light is radiated from a light emitter to the electro-optic crystal, and incident light from the gain medium incident along an optical axis perpendicular to a direction of an electric field formed by the control voltage is deflected in a direction parallel to the electric field, so that wavelength sweeping is performed.Type: ApplicationFiled: June 7, 2017Publication date: December 14, 2017Applicants: Nippon Telegraph and Telephone Corporation, Hamamatsu Photonics K.K., NTT Advanced Technology CorporationInventors: Seiji TOYODA, Yuzo Sasaki, Takashi Sakamoto, Joji Yamaguchi, Tadashi Sakamoto, Koei Yamamoto, Masatoshi Fujimoto, Mahiro Yamada, Shogo Yagi, Yukihiko Ushiyama, Eiichi Sugai, Koji Yoneyama, Kazuo Fujiura
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Patent number: 9753231Abstract: An optical connector cleaning tool includes a cylindrical connecting portion to which an optical connector is connected, a cleaning unit configured to guide a cleaning thread to a coupling end face of an optical connector plug, and an optical unit having an optical path reaching the optical connector plug. The optical unit includes a lens arranged in a position facing the coupling end face to form one end portion of an optical system, and having a missing portion extending in an optical-axis direction, and an image sensor positioned at the other end of the optical system. The cleaning unit includes a rod-like cleaning tip having a thread passage through which the cleaning thread passes. The cleaning tip is inserted into a hollow portion of the lens having the missing portion extending in the optical-axis direction, such that the cleaning tip is movable in a longitudinal direction thereof.Type: GrantFiled: March 9, 2015Date of Patent: September 5, 2017Assignees: NTT ADVANCED TECHNOLOGY CORPORATION, NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Toru Miura, Masayuki Murakami, Masaru Kobayashi, Yuichi Higuchi, Joji Yamaguchi
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Patent number: 9530610Abstract: A method for fabricating a blanking aperture array device for multi-beams includes forming, using a substrate over which a first insulating film, a first metal film, a second insulating film, and a second metal film are laminated in order, electrodes and pads on the second metal film, removing a part of the second metal film, removing the second insulating film using, as a mask, the electrodes, the pads, and a remaining part of the second metal film, and forming openings each being between a pair of electrodes, wherein, a part of the second metal film is etched such that some part of it remains in regions each connecting one of the electrodes and one of the pads, and a region in which entire openings are formed except the openings themselves is configured by the electrodes, pads, and first and second metal films such that the insulating film is not exposed.Type: GrantFiled: November 30, 2015Date of Patent: December 27, 2016Assignees: NuFlare Technology, Inc., NTT Advanced Technology CorporationInventors: Kazuhiro Chiba, Hiroshi Matsumoto, Munehiro Ogasawara, Ryoichi Yoshikawa, Hirofumi Morita, Hirokazu Yamada, Teruaki Safu, Toshifumi Konishi, Takaaki Matsushima, Kazuhisa Kudo, Masaki Yano, Katsuyuki Machida
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Publication number: 20160155600Abstract: A method for fabricating a blanking aperture array device for multi-beams includes forming, using a substrate over which a first insulating film, a first metal film, a second insulating film, and a second metal film are laminated in order, electrodes and pads on the second metal film, removing a part of the second metal film, removing the second insulating film using, as a mask, the electrodes, the pads, and a remaining part of the second metal film, and forming openings each being between a pair of electrodes, wherein, a part of the second metal film is etched such that some part of it remains in regions each connecting one of the electrodes and one of the pads, and a region in which entire openings are formed except the openings themselves is configured by the electrodes, pads, and first and second metal films such that the insulating film is not exposed.Type: ApplicationFiled: November 30, 2015Publication date: June 2, 2016Applicants: NuFlare Technology, Inc., NTT Advanced Technology CorporationInventors: Kazuhiro CHIBA, Hiroshi Matsumoto, Munehiro Ogasawara, Ryoichi Yoshikawa, Hirofumi Morita, Hirokazu Yamada, Teruaki Safu, Toshifumi Konishi, Takaaki Matsushima, Kazuhisa Kudo, Masaki Yano, Katsuyuki Machida