Patents by Inventor Daisuke Goto

Daisuke Goto 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: 20230413326
    Abstract: A wireless communication system includes one or more communication devices located in a communication target area, and a relay device mountable on a moving body, in which the relay device includes a timing control unit that generates a transmission permission signal that is a signal representing transmission permission of an uplink signal, and a first transmission unit that transmits the transmission permission signal to the communication target area by a beam. The communication device includes a reception unit that obtains the transmission permission signal from the relay device, a transmission control unit that determines an earlier transmission timing as an elevation angle of the relay device viewed from the communication device is larger on a basis of the transmission permission signal, and a second transmission unit that transmits the uplink signal to the relay device at the transmission timing.
    Type: Application
    Filed: December 23, 2020
    Publication date: December 21, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kazumitsu SAKAMOTO, Kento YOSHIZAWA, Yosuke FUJINO, Daisuke GOTO, Yasuyoshi KOJIMA, Kiyohiko ITOKAWA
  • Publication number: 20230412199
    Abstract: A wireless communication system includes: a measurement unit that measures a signal level of an analog signal corresponding to a received radio signal; a first output unit that amplifies an amplitude of the analog signal and extracts an analog signal with a desired frequency band from the analog signal with the amplified amplitude; a second output unit that extracts an analog signal with a desired frequency band from the analog signal and amplifies an amplitude of the extracted analog signal; and a switching control unit that inputs the analog signal corresponding to the received radio signal to the first output unit when the signal level of the analog signal other than the desired frequency band is less than a threshold, and inputs the analog signal corresponding to the received radio signal to the second output unit when the signal level of the analog signal other than the desired frequency band is equal to or greater than the threshold.
    Type: Application
    Filed: December 23, 2020
    Publication date: December 21, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kazumitsu SAKAMOTO, Yosuke FUJINO, Daisuke GOTO, Yasuyoshi KOJIMA, Kiyohiko ITOKAWA
  • Publication number: 20230412261
    Abstract: A signal acquisition unit acquires a reception signal received by a reception device from a transmission device that moves relative to the reception device. A bandwidth specifying unit specifies a reception bandwidth that is a bandwidth of the reception signal. A shift specifying unit specifies a change amount of a Doppler shift per time on the basis of a difference between a bandwidth of a transmission signal in the transmission device and the reception bandwidth. A compensation unit compensates for a change of the Doppler shift of the reception signal on the basis of the change amount specified.
    Type: Application
    Filed: December 2, 2020
    Publication date: December 21, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Kazumitsu SAKAMOTO, Yosuke FUJINO, Tomoya KAGEYAMA, Daisuke GOTO, Yasuyoshi KOJIMA, Kiyohiko ITOKAWA
  • Patent number: 11812279
    Abstract: A method includes a step 1 of performing processing for determining wireless terminal stations that are inside cover areas of existing wireless base stations, and excluding the existing wireless base stations and the wireless terminal stations inside the cover areas from a wireless base station installation area, a step 2 of performing processing for optimizing, with respect to each first wireless terminal station that is outside the cover areas of the existing wireless base stations and has been left in the processing for excluding in the step 1, a combination of the first wireless terminal station and the closest additional wireless base station from which received power is the largest, and optimizing installation positions of additional wireless base stations, a step 3 of determining, with respect to the combinations of the additional wireless base stations and the first wireless terminal stations that were optimized in the step 2, whether wireless terminal stations are inside or outside cover areas of the
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: November 7, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Toshiro Nakahira, Hirantha Abeysekera, Shoko Shinohara, Yasuhiko Inoue, Koichi Ishihara, Takafumi Hayashi, Daisuke Goto, Yasushi Takatori
  • Patent number: 11801849
    Abstract: An electrically controlled differential gear is disposed between a right front wheel and a left front wheel of a vehicle. The electrically controlled differential gear includes a clutch mechanism that limits a differential operation of the electrically controlled differential gear. A second ECU (control portion) obtains information as to failure associated with actuation of a right front electric brake mechanism. The second ECU obtains a physical amount relating to a required braking force which is applied to the left front wheel and the right front wheel. The second ECU outputs a differential limiting control command for limiting the differential operation of the electrically controlled differential gear to the clutch mechanism (or more specifically, a differential ECU that controls the clutch mechanism) based on the information as to the failure and the physical amount relating to the required braking force.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: October 31, 2023
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Haruhiko Fujita, Daisuke Goto
  • Publication number: 20230303461
    Abstract: A molded article having a small difference in thermal conductivities between a central section and a section located at an outer peripheral surface side; and a method for producing the same; wherein, a plate-shaped molded article includes an aluminum-silicon carbide composited section in which a metal including aluminum was impregnated into a silicon carbide porous body, wherein a difference in the densities, by Archimedes’ principle, of a central section of the aluminum-silicon carbide composited section and of at least a portion of an outer side section located further toward the outside peripheral surface side than the central section is 3% or less.
    Type: Application
    Filed: February 16, 2022
    Publication date: September 28, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventors: Daisuke GOTO, Hiroaki OTA
  • Publication number: 20230231691
    Abstract: A wireless communication system includes one or more communications apparatuses, and a relay device, which is mobile, wherein the relay device includes a transmission unit adapted to transmit a channel change signal to the one or more communications apparatuses, the channel change signal containing channel information that indicates results corresponding to interference levels of a plurality of channels in a frequency band available for use in uplink transmission from the one or more communications apparatuses to the relay device and specifying information used to specify a communications apparatus subject to channel change, and the one or more communications apparatuses include a channel set unit adapted to set a channel having an interference level lower than a threshold as a channel to be used for communications with the relay device when the specifying information contained in the channel change signal is applicable.
    Type: Application
    Filed: June 5, 2020
    Publication date: July 20, 2023
    Inventors: Daisuke GOTO, Kiyohiko ITOKAWA, Yasuyoshi KOJIMA, Fumihiro YAMASHITA
  • Publication number: 20230231596
    Abstract: A first offset compensator configured to compensate for frequency offsets occurring during communications between a plurality of communication devices and a relay device, wherein when the first offset compensator is provided on the relay device, the first offset compensator gives a statistical frequency offset obtained from a statistic of a plurality of frequency offsets occurring during communications between respective ones of the plurality of communication devices and the relay device to a receiver configured to receive wireless signals transmitted from respective ones of the plurality of communication devices, and when the first offset compensator is provided on each of the plurality of communication devices, the first offset compensator gives a frequency offset occurring during communications between the communication device provided with the first offset compensator and the relay device to a transmitter configured to transmit wireless signals to the relay device.
    Type: Application
    Filed: June 5, 2020
    Publication date: July 20, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke GOTO, Kiyohiko ITOKAWA, Yasuyoshi KOJIMA, Fumihiro YAMASHITA, Yosuke FUJINO, Kento YOSHIZAWA
  • Publication number: 20230223998
    Abstract: An antenna orientation deciding method in a wireless communication system that has a communication device provided with an antenna having directionality and a relay device that travels, includes a deciding step of deciding an orientation at which the directionality of the antenna as to the relay device is optimal, on the basis of position information of the communication device, orbit information of the relay device, and information relating to orientation of directionality of the antenna.
    Type: Application
    Filed: June 12, 2020
    Publication date: July 13, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke GOTO, Kiyohiko ITOKAWA, Yasuyoshi KOJIMA, Fumihiro YAMASHITA
  • Publication number: 20230216559
    Abstract: A wireless communication system includes: a first wireless communication apparatus; and a second wireless communication apparatus. First wireless communication apparatus wirelessly communicates with second wireless communication apparatus using one or more first antennas. Second wireless communication apparatus wirelessly communicates with the first wireless communication apparatus using one or more second antennas.
    Type: Application
    Filed: June 8, 2021
    Publication date: July 6, 2023
    Inventors: Daisuke GOTO, Fumihiro YAMASHITA, Kiyohiko ITOKAWA, Yasuyoshi KOJIMA, Chihaya KATO, Mitsuhiro NAKADAI
  • Publication number: 20230217275
    Abstract: In a wireless communication system in which a relay device provided on a mobile object communicates wirelessly with a plurality of communication devices present in places different from each other, each of the communication devices includes a communication device transmission unit which transmits test signals at a plurality of timings during a time frame when communication with the relay device is possible, a communication device reception unit which receives, from the relay device, communication situation information indicating communication situations at the plurality of timings, and a communication device control unit which controls the communication device transmission unit such that the communication device transmission unit communicates with the relay device at one of the plurality of timings, the communication situation of which is good and which is identified on the basis of the communication situation information, and the relay device includes a relay device reception unit which receives the respecti
    Type: Application
    Filed: June 5, 2020
    Publication date: July 6, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke GOTO, Kiyohiko ITOKAWA, Yasuyoshi KOJIMA, Fumihiro YAMASHITA
  • Patent number: 11683089
    Abstract: In a wireless communication system that includes a base station, a plurality of relay stations that are moving, and a plurality of terminal stations in a service area, and performs downlink multiple access from the base station to each of the plurality of terminal stations via one or more relay stations of the plurality of relay stations, the base station includes a downlink multiple access unit configured to identify a relay station of the plurality of relay stations transmitting a signal receivable in the service area based on positions of the plurality of relay stations, frequency multiplex-transmit a data signal in a different frequency band to each of the plurality of terminal stations via the relay station, and spatial multiplex-transmit a data signal to a terminal station of the plurality of terminal stations supporting spatial multiplex transmission in a particular frequency band and via the plurality of relay stations.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: June 20, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke Goto, Fumihiro Yamashita
  • Patent number: 11682604
    Abstract: To provide a method for manufacturing a heat dissipation component having excellent heat dissipation properties, in which there is minimal return of warping after the bonding of a circuit board, and to provide a heat dissipation component manufactured using the method. Provided is a method for manufacturing a warped flat-plate-shaped heat dissipation component containing a composite part that comprises silicon carbide and an aluminum alloy, wherein the method for manufacturing the heat dissipation component is characterized in that the heat dissipation component is sandwiched in a concave-convex mold having a surface temperature of at least 450° C. and having a pair of opposing spherical surfaces measuring 7000-30,000 mm in curvature radius, and pressure is applied for 30 seconds or more at a stress of 10 kPa or more such that the temperature of the heat dissipation component reaches at least 450° C.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: June 20, 2023
    Assignee: DENKA COMPANY LIMITED
    Inventors: Daisuke Goto, Takeshi Miyakawa, Yosuke Ishihara
  • Publication number: 20230189047
    Abstract: A relay device provided in a moving body and communicating with a plurality of communication devices present at different locations in a wireless manner includes a reception unit that receives a signal transmitted from each of the plurality of communication devices, a measurement unit that measures a degree of congestion of communication in the reception unit, and a transmission unit that transmits information to each communication device when the relay device is located in a range in which the relay device is able to communicate with the communication device, the information being used to determine the number of times of transmission of the signal to be transmitted from the communication device and being based on the degree of congestion.
    Type: Application
    Filed: May 22, 2020
    Publication date: June 15, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke GOTO, Kiyohiko ITOKAWA, Yasuyoshi KOJIMA, Fumihiro YAMASHITA, Yosuke FUJINO, Kento YOSHIZAWA
  • Publication number: 20230185199
    Abstract: A nozzle that mixes fluid containing steam or mist of pressurized pure water and processing liquid containing at least sulfuric acid and ejects mixed fluid of the fluid and the processing liquid, the nozzle comprising: at least one first ejection port ejecting the fluid; at least one second ejection port ejecting the processing liquid; and at least one lead-out path being in fluid communication with the at least one first ejection port and the at least one second ejection port and leading out the mixed fluid of the fluid ejected from the at least one first ejection port and the processing liquid ejected from the at least one second ejection port, wherein the at least one first ejection port or the at least one second ejection port is arranged to be directed to position deviated from central axis of the at least one lead-out path in a plan view.
    Type: Application
    Filed: December 8, 2022
    Publication date: June 15, 2023
    Inventors: Hiroki SAKURAI, Nobuhiro OGATA, Daisuke GOTO, Kanta MORI, Kenji YADA, Yusuke HASHIMOTO, Shoki MIZUGUCHI, Yenrui HSU
  • Publication number: 20230179331
    Abstract: A wireless communication apparatus includes an encoding unit, an interleaving processing unit, a modulation unit, and a transmission unit. The encoding unit divides a bit string to be transmitted to a communication destination apparatus which is a wireless communication apparatus at a communication destination in a predetermined period into a plurality of blocks and performs error correction coding for each of the plurality of blocks to generate encoded data.
    Type: Application
    Filed: May 21, 2020
    Publication date: June 8, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke GOTO, Kiyohiko ITOKAWA, Yasuyoshi KOJIMA, Fumihiro YAMASHITA
  • Publication number: 20230179289
    Abstract: A mobile relay apparatus includes a first signal reception unit, a storage unit, and a second signal transmission unit. The first signal reception unit receives a first signal wirelessly transmitted by a first communication apparatus. The storage unit stores waveform data indicating a waveform of the first signal. The second signal transmission unit wirelessly transmits a second signal indicating the waveform data stored in the storage unit at a timing at which communication with the second communication apparatus is possible. The second communication apparatus includes a second signal reception unit, a second signal reception processing unit, and a first signal reception processing unit. The second signal reception unit receives a second signal. The second signal reception processing unit performs processing of receiving the second signal to acquire waveform data.
    Type: Application
    Filed: May 20, 2020
    Publication date: June 8, 2023
    Inventors: Daisuke GOTO, Kiyohiko ITOKAWA, Yasuyoshi KOJIMA, Fumihiro YAMASHITA, Yosuke FUJINO, Kento YOSHIZAWA, Kazumitsu SAKAMOTO
  • Publication number: 20230170984
    Abstract: A relay apparatus includes a reception unit, a storage unit, and a transmission unit. The reception unit receives data wirelessly transmitted by a first communication apparatus through a plurality of first antennas. The storage unit wirelessly transmits the data received by the reception unit to a second communication apparatus through a plurality of second antennas. The second communication apparatus includes a relay data reception unit. The relay data reception unit receives data wirelessly transmitted by the relay apparatus through a plurality of third antennas.
    Type: Application
    Filed: May 20, 2020
    Publication date: June 1, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke GOTO, Kiyohiko ITOKAWA, Yasuyoshi KOJIMA, Fumihiro YAMASHITA, Yosuke FUJINO, Kento YOSHIZAWA, Kazumitsu SAKAMOTO
  • Publication number: 20230170988
    Abstract: In a wireless communication system in which a relay apparatus provided in a mobile object wirelessly communicates with a plurality of communication apparatuses placed at different locations, the relay apparatus includes a receiver that receives a signal transmitted from each of the plurality of communication apparatus, the signal including position information indicating a position of each communication apparatus, a measurement unit that measures a congestion level of communication, a control unit that divides a communication target area into a plurality of small areas in accordance with the positions of the plurality of communication apparatuses and the congestion level of communication and generates area information indicating a position of each of the small areas, and a transmitter that sequentially transmits a plurality of pieces of the area information when the relay apparatus is positioned in a range in which the relay apparatus can communicate with the communication apparatuses, and each communication
    Type: Application
    Filed: May 25, 2020
    Publication date: June 1, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Daisuke GOTO, Kiyohiko ITOKAWA, Yasuyoshi KOJIMA, Fumihiro YAMASHITA
  • Publication number: 20230156966
    Abstract: An element-mounted board includes a heat-dissipating plate in which aluminum or magnesium-containing metal layers are formed on both front and back surfaces of a flat plate-shaped metal-silicon carbide complex including aluminum or magnesium, and an electronic element including a ceramic plate, which is mounted on one surface side of the heat-dissipating plate, in which a flatness of the other surface of the heat-dissipating plate is 600 ?m or less.
    Type: Application
    Filed: March 11, 2021
    Publication date: May 18, 2023
    Applicant: DENKA COMPANY LIMITED
    Inventors: Daisuke GOTO, Hiroaki OTA