Patents by Inventor Yasutaka Kimura

Yasutaka Kimura 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: 20230215254
    Abstract: The present disclosure provides a monitoring system including an edge processing apparatus including a space distinct ID management database, a space distinct ID control unit, a storage unit, an analysis unit, and an abnormality determination unit, and a controller, a transmitter, and a camera with sensor that are installed in a location to be monitored, in which the space distinct ID management database stores a space distinct ID and a transmission time of the space distinct ID in association with the location to be monitored, the space distinct ID control unit acquires the space distinct ID associated with the location to be monitored from the space distinct ID management database and transmits the space distinct ID that is acquired to the controller in the associated location to be monitored, the controller transmits the space distinct ID acquired from the space distinct ID control unit to the transmitter, the transmitter generates a signal based on the space distinct ID acquired from the controller and di
    Type: Application
    Filed: May 27, 2020
    Publication date: July 6, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Ryota SHIINA, Tomohiro TANIGUCHI, Shinya TAMAKI, Kazutaka HARA, Koji TSUJI, Tetsuya SUZUKI, Yasutaka KIMURA
  • Patent number: 11689311
    Abstract: An object is to provide an optical communication system capable of controlling the output ratio by port and by wavelength for incident light of different wavelengths, a method of determining the split ratio of an uneven-split optical splitter for controlling the output ratio by port and by wavelength, and a transmission range determination method for the optical communication system. The split ratio determination method for an uneven-split optical splitter according to the present invention uses the melt-draw distance to adjust the split ratio of each fiber-optic splitter included in the uneven-split optical splitter such that the light output from the farthest ONUs among each of the ports connected under the ports B to M of the uneven-split optical splitter arrives with the minimum reception sensitivity at OLT receivers in a PON system.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: June 27, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Atsuko Kawakita, Kazutaka Hara, Yasutaka Kimura, Kenji Horikawa, Hiroyuki Furukawa
  • Publication number: 20230147193
    Abstract: In response to the above issue, an object of the present invention is to provide a diagnostic apparatus and a diagnostic method capable of accurately recognizing whether to use a long extension function at the time of relocation of an accommodation station of an OLT. The diagnostic apparatus according to an aspect of the present invention has an allowable line length list that is a relationship between a center wavelength and an allowable line distance that satisfies a selected spectrum width in an optical fiber used in an optical communication system, measures a center wavelength and a spectrum width of a spectrum for each ONU, matches the allowable line length list, and obtains an allowable line distance of each ONU.
    Type: Application
    Filed: March 12, 2020
    Publication date: May 11, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yasutaka KIMURA, Kazutaka HARA, Atsuko KAWAKITA
  • Publication number: 20230105373
    Abstract: An object of the present disclosure is to provide a data collection system capable of collecting various pieces of metadata other than sensing data and instrument information by existing communication protocols and associating the sensing data, the instrument information, and the metadata with each other without errors.
    Type: Application
    Filed: February 21, 2020
    Publication date: April 6, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tomohiro TANIGUCHI, Shinya TAMAKI, Tetsuya SUZUKI, Yasutaka KIMURA
  • Publication number: 20230104085
    Abstract: The range-finding apparatus (1) includes a light source (200), an optical receiver (1103), a setting unit (100), a detector (1100), and a calculation unit (300). The light source (200) projects light with a first irradiation pattern in a first period and projects light with a second irradiation pattern in a second period. The optical receiver (1103) receives light to output a pixel signal. The setting unit (100) sets a reference signal on the basis of the pixel signal in the first period. The detector (1100) detects whether or not the pixel signal varies from the reference signal by a first value or more in the second period and outputs a first detection signal indicative of a result obtained by the detection. The calculation unit (300) calculates a distance to a to-be-measured object using the first detection signal.
    Type: Application
    Filed: January 22, 2021
    Publication date: April 6, 2023
    Inventors: TAKAHIRO AKAHANE, SHUN KAIZU, YUSUKE IKEDA, YASUTAKA KIMURA, SHINICHIROU ETOU, TAKESHI OYAKAWA, NAOTO NAGAKI, EIJI HIRATA, HIROSHI YUASA
  • Patent number: 11619209
    Abstract: An inspection method according to the present disclosure includes a step of mounting an ultrasonic probe, a step of mounting a pulser receiver, a step of causing the ultrasonic probe to transmit ultrasonic waves, a step of causing the ultrasonic probe to receive a reflected wave of the ultrasonic waves reflected by the wind turbine blade, a step of causing the pulser receiver to acquire reflected-wave data, a step of causing the pulser receiver to wirelessly transmit the reflected-wave data, a step of causing at least one of antennas to receive the wirelessly transmitted reflected-wave data, and a step of causing an information processing device electrically connected to the at least two antennas to perform information processing on the reflected-wave data.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: April 4, 2023
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yasutaka Kimura, Tairiku Adachi, Kazuumi Kondo
  • Publication number: 20230099790
    Abstract: An object of the present disclosure is to provide a data collection system and a data collection method which are capable of collecting sensing data and various pieces of metadata by a single communication protocol and capable of associating the sensing data with the metadata without errors. A data collection system 301 of the present disclosure is a data collection system that performs communication from a terminal 11 to a data collection unit 12 by a standardized communication protocol (LLDP or HTIP), in which the terminal 11 stores sensing data detected by a sensor device in an extended field different from a field in which metadata is stored, within a frame specified by the communication protocol, and the data collection unit 12 associates the sensing data with the metadata based on information for identifying the terminal described in the frame.
    Type: Application
    Filed: February 21, 2020
    Publication date: March 30, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tomohiro TANIGUCHI, Shinya TAMAKI, Tetsuya SUZUKI, Yasutaka KIMURA
  • Publication number: 20230082934
    Abstract: In order to solve the problems described above, an object of the present invention is to provide an optical communication system and a control method that automatically adjust a branching ratio of an optical splitter in accordance with a connection of a new ONU. An optical communication system according to the present invention causes an operation system or a DBA (Dynamic Bandwidth Allocation) function and a determining unit of a branching ratio of an optical splitter to cooperate with each other, adjusts the branching ratio so as to enable ranging with an active ONU, and takes into consideration an initial connection sequence through which an ONU is newly connected.
    Type: Application
    Filed: February 12, 2020
    Publication date: March 16, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kazutaka HARA, Yasutaka KIMURA, Atsuko KAWAKITA
  • Publication number: 20230074152
    Abstract: An optical communication system according to the present invention cancels waveform distortion due to wavelength dispersion by extracting the spectrum of a transmitted optical signal and passing the optical signal to a fiber having a dispersion value opposite to a dispersion amount corresponding to a transmission distance received by the spectrum component and compensates for a transmission path loss due to the fiber having the opposite dispersion value using optical splitters having different split ratios. With this configuration, the present invention can compensate for waveform distortion due to wavelength dispersion by a simple method in an access network and achieve an increase in the reachable transmission distance of the farthest user or an increase in the number of connectable users.
    Type: Application
    Filed: February 12, 2020
    Publication date: March 9, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kazutaka HARA, Yasutaka KIMURA, Atsuko KAWAKITA
  • Publication number: 20230074464
    Abstract: The range-finding apparatus (1) includes an optical receiver (110), a light source unit (200), a converter (134), and a calculation unit (300). The optical receiver (110) receives light to output a pixel signal. The light source unit (200) projects light with a first irradiation pattern in a first period and projects light with a second irradiation pattern in a second period. The converter (134) sequentially converts the pixel signal bit by bit using binary search to output a first digital signal and a second digital signal, the first digital signal being output by performing the conversion with a first bit width in the first period, the second digital signal being output by performing the conversion with a second bit width in the second period, the second bit width being less than the first bit width. The calculation unit (300) calculates a distance on the basis of the first digital signal and the second digital signal.
    Type: Application
    Filed: January 25, 2021
    Publication date: March 9, 2023
    Inventors: TAKAHIRO AKAHANE, YUSUKE IKEDA, SHUN KAIZU, EIJI HIRATA, HIROSHI YUASA, SHINICHIROU ETOU, YASUTAKA KIMURA, TAKESHI OYAKAWA, NAOKI YOSHIMOCHI
  • Publication number: 20230055033
    Abstract: An object of the present invention is to provide an optical communication system and an optical communication method capable of achieving a long transmission distance with a passive element and obtaining redundancy of a ring topology. The optical communication system according to the present invention is a PON system having a ring configuration, in which an unequal branch optical splitter having a left-right symmetrical configuration is disposed in a trunk fiber wired in a loop shape. An OLT and an ONU have a configuration in which two sets of Tx (transmitter) and Rx (receiver) are mounted. Two sets of Tx (transmitters) and Rx (receivers) in each of a plurality of ONUs are respectively connected to left and right symmetrical ports of one unequally branched light beam SP.
    Type: Application
    Filed: March 17, 2020
    Publication date: February 23, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Atsuko KAWAKITA, Yasutaka KIMURA, Kazutaka HARA
  • Publication number: 20220349386
    Abstract: An inspection method according to the present disclosure includes a step of mounting an ultrasonic probe, a step of mounting a pulser receiver, a step of causing the ultrasonic probe to transmit ultrasonic waves, a step of causing the ultrasonic probe to receive a reflected wave of the ultrasonic waves reflected by the wind turbine blade, a step of causing the pulser receiver to acquire reflected-wave data, a step of causing the pulser receiver to wirelessly transmit the reflected-wave data, a step of causing at least one of antennas to receive the wirelessly transmitted reflected-wave data, and a step of causing an information processing device electrically connected to the at least two antennas to perform information processing on the reflected-wave data.
    Type: Application
    Filed: July 28, 2021
    Publication date: November 3, 2022
    Inventors: Yasutaka KIMURA, Tairiku ADACHI, Kazuumi KONDO
  • Publication number: 20220173813
    Abstract: An object is to provide an optical communication system and an optical communication method that are capable of, when assigning wavelengths on a per-service basis and providing services on a per-area basis, preventing degradation of signal quality due to linear crosstalk and preventing an increase in cost and size. An optical communication system according to the present invention includes an optical splitter 300 connecting N first ports and M second ports by a combination of 2×2 fiber optical splitters, N and M each being an integer of two or more, where wavelengths of optical signals to be received are limited for each group of optical receivers 106, by using a correlation between a fused extension length of at least one 2×2 fiber optical splitter directly connected to the first port, among the 2×2 fiber optical splitters, and wavelength output characteristics of the second port of the optical splitter 300.
    Type: Application
    Filed: March 6, 2020
    Publication date: June 2, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Atsuko KAWAKITA, Kazutaka HARA, Yasutaka KIMURA, Kenji HORIKAWA, Hiroyuki FURUKAWA
  • Publication number: 20220166532
    Abstract: An object is to provide an optical communication system capable of controlling the output ratio by port and by wavelength for incident light of different wavelengths, a method of determining the split ratio of an uneven-split optical splitter for controlling the output ratio by port and by wavelength, and a transmission range determination method for the optical communication system. The split ratio determination method for an uneven-split optical splitter according to the present invention uses the melt-draw distance to adjust the split ratio of each fiber-optic splitter included in the uneven-split optical splitter such that the light output from the farthest ONUs among each of the ports connected under the ports B to M of the uneven-split optical splitter arrives with the minimum reception sensitivity at OLT receivers in a PON system.
    Type: Application
    Filed: March 6, 2020
    Publication date: May 26, 2022
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Atsuko KAWAKITA, Kazutaka HARA, Yasutaka KIMURA, Kenji HORIKAWA, Hiroyuki FURUKAWA
  • Patent number: 11290189
    Abstract: To provide an optical communication system and an optical communication method able to achieve a high reliable access network capable of long haul distance transmission considering the optical energy efficiency even if the user distribution is biased. An uneven branch optical splitter included in an optical communication system according to the present invention can output the optical intensities different for each output port by adjusting the branching configuration and the branching ratio. For example, a reach transmission distance of the farmost user can be extended or the number of connectible users can be increased by adjusting the branching configuration of the uneven branch optical splitter or the branching ratios such that the near minimum reception sensitivity is given for the ONU installed near the telecommunications carrier.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: March 29, 2022
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Atsuko Kawakita, Kazutaka Hara, Hiroyuki Furukawa, Yasutaka Kimura, Kenji Horikawa
  • Patent number: 11118563
    Abstract: A wind turbine blade is reinforced while suppressing possible stress concentration resulting from a load imposed on a blade root portion of the wind turbine blade in a flap direction. The wind turbine blade includes a blade main body extending from the blade root portion toward a blade tip portion and an FRP reinforcing layer formed so as to cover at least a part of the outer surface of the blade root portion of the blade main body. The FRP reinforcing layer includes a plurality of laminated fiber layers and a resin with which the plurality of fiber layers is impregnated. The FRP reinforcing layer is formed such that, in a cross section along a longitudinal direction of the blade main body, both ends of the plurality of laminated fiber layers in the longitudinal direction are tapered.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: September 14, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yasutaka Kimura, Takao Kuroiwa, Keisuke Ota
  • Publication number: 20210194589
    Abstract: To provide an optical communication system and an optical communication method able to achieve a high reliable access network capable of long haul distance transmission considering the optical energy efficiency even if the user distribution is biased. An uneven branch optical splitter included in an optical communication system according to the present invention can output the optical intensities different for each output port by adjusting the branching configuration and the branching ratio. For example, a reach transmission distance of the farmost user can be extended or the number of connectible users can be increased by adjusting the branching configuration of the uneven branch optical splitter or the branching ratios such that the near minimum reception sensitivity is given for the ONU installed near the telecommunications carrier.
    Type: Application
    Filed: August 21, 2019
    Publication date: June 24, 2021
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Atsuko KAWAKITA, Kazutaka HARA, Hiroyuki FURUKAWA, Yasutaka KIMURA, Kenji HORIKAWA
  • Patent number: 10900468
    Abstract: A lightning-resistance performance of a wind turbine blade is improved with a simple configuration or method. Provided is a wind turbine blade protection structure for protecting a wind turbine blade from lightning, including a protection layer including a conductive metal foil arranged so as to cover at least a part of a surface of the wind turbine blade. The protection layer includes an elongated portion extending in a blade longitudinal direction along a trailing edge of the wind turbine blade from a blade root of the wind turbine blade to a blade tip portion.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: January 26, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Naoto Murata, Yasutaka Kimura, Eiji Kato
  • Patent number: 10514022
    Abstract: A wind turbine blade is reinforced while suppressing possible stress concentration resulting from a load imposed on a blade root portion of the wind turbine blade in a flap direction. The wind turbine blade includes a blade main body extending from the blade root portion toward a blade tip portion and an FRP reinforcing layer formed so as to cover at least a part of the outer surface of the blade root portion of the blade main body. The FRP reinforcing layer includes a plurality of laminated fiber layers and a resin with which the plurality of fiber layers is impregnated. The FRP reinforcing layer is formed such that, in a cross section along a longitudinal direction of the blade main body, both ends of the plurality of laminated fiber layers in the longitudinal direction are tapered.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: December 24, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Yasutaka Kimura, Takao Kuroiwa, Keisuke Ota
  • Publication number: 20190383273
    Abstract: A lightning-resistance performance of a wind turbine blade is improved with a simple configuration or method. Provided is a wind turbine blade protection structure for protecting a wind turbine blade from lightning, including a protection layer including a conductive metal foil arranged so as to cover at least a part of a surface of the wind turbine blade. The protection layer includes an elongated portion extending in a blade longitudinal direction along a trailing edge of the wind turbine blade from a blade root of the wind turbine blade to a blade tip portion.
    Type: Application
    Filed: December 13, 2018
    Publication date: December 19, 2019
    Inventors: Naoto MURATA, Yasutaka KIMURA, Eiji KATO