Patents by Inventor Daisuke Ohta

Daisuke Ohta 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).

  • Patent number: 12198670
    Abstract: A filtering device is configured to estimate the characteristics of noise superposed on measurement data relating to the status of a controlled machine based on the status information representing the status of a controlled machine, thus adjusting the filtering to eliminate noise based on the estimated noise characteristics.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: January 14, 2025
    Assignee: NEC CORPORATION
    Inventors: Daisuke Ohta, Hiroshi Yoshida, Tatsuya Yoshimoto
  • Publication number: 20240417956
    Abstract: The present invention provides an excavation system capable of improving the work efficiency at a worksite. An excavation device (20) excavates an object (80) treated as an excavation target at an excavation spot. A first detection device (2) is installed at an excavation spot away from the excavation device (20). The first detection device (2) detects information related to the object (80) at the excavation spot. A control device (10) transmits, to the excavation device (20), control information related to operations of the excavation device (20) based on target location data indicating the position of the object (80), which corresponds to information related to the object (80). The excavation device (20) executes operations for excavation in accordance with the control information.
    Type: Application
    Filed: September 3, 2024
    Publication date: December 19, 2024
    Applicant: NEC Corporation
    Inventors: Hiroshi YOSHIDA, Tatsuya YOSHIMOTO, Daisuke OHTA
  • Patent number: 12110661
    Abstract: The present invention provides an excavation system capable of improving the work efficiency at a worksite. An excavation device (20) excavates an object (80) treated as an excavation target at an excavation spot. A first detection device (2) is installed at an excavation spot away from the excavation device (20). The first detection device (2) detects information related to the object (80) at the excavation spot. A control device (10) transmits, to the excavation device (20), control information related to operations of the excavation device (20) based on target location data indicating the position of the object (80), which corresponds to information related to the object (80). The excavation device (20) executes operations for excavation in accordance with the control information.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: October 8, 2024
    Assignee: NEC CORPORATION
    Inventors: Hiroshi Yoshida, Tatsuya Yoshimoto, Daisuke Ohta
  • Publication number: 20240200309
    Abstract: In order to operate a work machine more safely, a control method (S1) includes: an obtaining step (S11) of obtaining first work information that indicates a content of work to be carried out by a work machine and position information that pertains to the first work machine; a range specifying step (S12) of specifying, in accordance with the content of the work which content is indicated by the first work information, a first range that includes a range in which the first work machine operates and a vicinity of the range; and a motion controlling step (S13) of controlling a motion of the first work machine with reference to the first range and the position information that pertains to the first work machine.
    Type: Application
    Filed: April 26, 2022
    Publication date: June 20, 2024
    Applicant: NEC Corporation
    Inventors: Daisuke OHTA, Tatsuya YOSHIMOTO, Hidetoshi KATAOKA, Takahiro MATSUDA
  • Publication number: 20230417018
    Abstract: Provided are a control apparatus, a control system, and a control method for controlling a work machine which reduce inadvertent contact during operation of the work machine and inhibit a decrease in operating rate. A control apparatus for controlling a work machine having a movable part includes: an acquisition means of acquiring state information indicating a posture of the work machine, action information indicating an action of the work machine, and surrounding information indicating an arrangement of a surrounding object around the work machine; a specification means of specifying, based on the state information and the action information, a safe distance that is set between the movable part and the surrounding object; and an action control means of controlling an action of the work machine in accordance with the safe distance and the surrounding information.
    Type: Application
    Filed: October 29, 2021
    Publication date: December 28, 2023
    Applicant: NEC Corporation
    Inventors: Daisuke OHTA, Yusuke Kakuno, Toshiyuki Toyoshima
  • Publication number: 20230392354
    Abstract: A movable part of a work machine is moved to an intended region with higher accuracy. A control apparatus (10) for controlling a work machine having a movable part includes: a movement control section (11) of controlling the work machine to move the movable part to a destination region; and a correction control section (12) of detecting a positional relation between the destination region and the movable part with reference to a detection value of a sensor to control the work machine to correct a position of the movable part.
    Type: Application
    Filed: October 29, 2021
    Publication date: December 7, 2023
    Applicant: NEC Corporation
    Inventors: Daisuke OHTA, Yosuke Kakuno
  • Publication number: 20230192984
    Abstract: A bladder for tire vulcanizing containing a crosslinked fluoroelastomer obtained by peroxide-crosslinking a fluoroelastomer composition including a peroxide-crosslinkable fluoroelastomer (A), a carbon black (B), and a peroxide cross-linking agent (C), wherein the crosslinked fluoroelastomer has a hardness at 25° C. of 60 to 90, a number of foreign particles selected from the group consisting of lumps of carbon and carbon grit having an aspect ratio of 1.1 or less and a Heywood diameter of 5 ?m or more present on a fracture surface obtained by tensile fracture of the crosslinked fluoroelastomer at 170° C. is 10/mm2 or less, and the fluoroelastomer (A) includes a vinylidene fluoride (VdF) fluoroelastomer.
    Type: Application
    Filed: February 10, 2023
    Publication date: June 22, 2023
    Applicants: DAIKIN INDUSTRIES, LTD., BRIDGESTONE CORPORATION
    Inventors: Masashi ARAI, Daisuke OHTA, Akinori UEDA, Yasuhiro ODA, Junichi ORIDE
  • Publication number: 20230132577
    Abstract: A filtering device is configured to estimate the characteristics of noise superposed on measurement data relating to the status of a controlled machine based on the status information representing the status of a controlled machine, thus adjusting the filtering to eliminate noise based on the estimated noise characteristics.
    Type: Application
    Filed: March 30, 2020
    Publication date: May 4, 2023
    Applicant: NEC Corporation
    Inventors: Daisuke OHTA, Hiroshi YOSHIDA, Tatsuya YOSHIMOTO
  • Publication number: 20220259823
    Abstract: The present invention provides an excavation system capable of improving the work efficiency at a worksite. An excavation device (20) excavates an object (80) treated as an excavation target at an excavation spot. A first detection device (2) is installed at an excavation spot away from the excavation device (20). The first detection device (2) detects information related to the object (80) at the excavation spot. A control device (10) transmits, to the excavation device (20), control information related to operations of the excavation device (20) based on target location data indicating the position of the object (80), which corresponds to information related to the object (80). The excavation device (20) executes operations for excavation in accordance with the control information.
    Type: Application
    Filed: June 3, 2020
    Publication date: August 18, 2022
    Applicant: NEC Corporation
    Inventors: Hiroshi YOSHIDA, Tatsuya YOSHIMOTO, Daisuke OHTA
  • Publication number: 20220174576
    Abstract: A wireless communication system according to the present invention includes a transmission control device and a reception control device configured to communicate with each other via at least one wireless link established in a wireless network, the transmission control device including a composite signal generation unit configured to select at least one signal from a predetermined number of signals to generate a composite signal and a multipath control unit configured to transmit the composite signal via the at least one wireless link, the reception control device including a multipath control unit configured to receive the composite signal from the at least one wireless link and a signal recovery unit configured to accumulate the received composite signal and to recover the predetermined number of signals from the predetermined number or more of the composite signals, the predetermined number being 1 or more.
    Type: Application
    Filed: December 26, 2019
    Publication date: June 2, 2022
    Applicant: NEC Corporation
    Inventors: Daisuke OHTA, Takahiro SHIROSHIMA, Yuki HATASHI, Jun SUZUKI, Youichi HIDAKA
  • Patent number: 11166795
    Abstract: Provided is a block body that makes it possible to quickly produce a dental prosthesis with a good accuracy. A material of the block body including SiO2 in an amount of 60.0 mass % to 80.0 mass %, Li2O in an amount of 10.0 mass % to 20.0 mass %, Al2O3 in an amount of 5.1 mass % to 10.0 mass %, wherein the block body is formed in a column, and a main crystalline phase of the block body is lithium disilicate.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: November 9, 2021
    Assignee: GC CORPORATION
    Inventors: Tomohiro Hoshino, Go Mashio, Tatsuya Fujimoto, Masatoshi Yoshinaga, Hayato Yokohara, Daisuke Ohta
  • Patent number: 11159957
    Abstract: A base station apparatus is connected to a plurality of transmission/reception points each switching a transmission scheme according to reception environment of wireless terminal and providing service to wireless terminal.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: October 26, 2021
    Assignee: NEC CORPORATION
    Inventors: Motoki Morita, Daisuke Ohta, Takahiro Nobukiyo
  • Publication number: 20210067980
    Abstract: A base station apparatus is connected to a plurality of transmission/reception points each switching a transmission scheme according to reception environment of wireless terminal and providing service to wireless terminal.
    Type: Application
    Filed: January 17, 2019
    Publication date: March 4, 2021
    Applicant: NEC CORPORATION
    Inventors: Motoki MORITA, Daisuke OHTA, Takahiro NOBUKIYO
  • Patent number: 10873873
    Abstract: A communication load estimation system is provided with a load estimation means 501 for estimating a communication load of a wireless base station to be an object of estimation, using at least: a network parameter which is a parameter concerning the number of antennas used for signal transmission of the wireless base station; a first quality measurement value which is a measurement value concerning a quality of communication with the wireless base station and which includes at least total reception power; and a second quality measurement value which is a measurement value concerning a quality of communication with the wireless base station and which includes at least a signal to interference noise ratio of a reference signal.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: December 22, 2020
    Assignee: NEC CORPORATION
    Inventors: Eiji Takahashi, Daisuke Ohta, Takeo Onishi, Takahiro Shiroshima
  • Publication number: 20200392304
    Abstract: A fluoroelastomer composition, and a crosslinked fluoroelastomer obtained by crosslinking the fluoroelastomer composition. The fluoroelastomer composition contains 10 to 60 parts by mass of a carbon black (B) and 0.1 to 10 parts by mass of a peroxide cross-linking agent (C) per 100 parts by mass of a peroxide-crosslinkable fluoroelastomer (A). The carbon black (B) has a number of foreign particles of 30/mm2 or less measured as described herein.
    Type: Application
    Filed: February 22, 2019
    Publication date: December 17, 2020
    Applicants: DAIKIN INDUSTRIES, LTD., BRIDGESTONE CORPORATION
    Inventors: Masashi ARAI, Daisuke OHTA, Akinori UEDA, Yasuhiro ODA, Junichi ORIDE
  • Patent number: 10844213
    Abstract: Disclosed is an acrylic thermoplastic resin composition containing an acrylic multilayer structure polymer particle (A) and an acrylic block copolymer (B). The component (A) has, as an inner layer, a rubber component layer (I) of a copolymer of 50-99.99 mass % of an acrylic acid ester monomer unit, 49.99-0 mass % of an additional monofunctional monomer unit, and 0.01-10 mass % of a polyfunctional monomer unit, and has, as an outermost layer, a thermoplastic resin component layer (II) of a copolymer of 40-100 mass % of a methacrylic acid ester monomer unit and 60-0 mass % of an additional monomer unit and having Mn of 30,000 or smaller. A layer (I)/layer (II) mass ratio is 30/70 to 90/10. An average particle size of the component (A) is 150 nm or smaller. The component (B) has Mw of 32,000 to 300,000. A mass ratio of (A)/(B) is 1/99 to 99/1.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: November 24, 2020
    Assignee: KURARAY CO., LTD.
    Inventors: Yusaku Nomoto, Daisuke Ohta
  • Patent number: 10616803
    Abstract: Provided is a radio base station, etc. that realize transmission control in view of QoE. According to a first aspect of the present invention, there is provided a radio base station that receives a packet(s) transmitted from a packet transmission apparatus via a network and transmits the received packet(s) to a wireless terminal(s), the radio base station including: acquisition means that acquires a packet type(s) or a packet identifier(s) set in the packet(s) by the packet transmission apparatus; and control means that performs transmission control to change a transmission order of the packet(s) based on the packet type(s) or the packet identifier(s).
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: April 7, 2020
    Assignee: NEC CORPORATION
    Inventors: Takahiro Nobukiyo, Takamichi Inoue, Daisuke Ohta, Toru Osuga
  • Publication number: 20190328495
    Abstract: Provided is a block body that makes it possible to quickly produce a dental prosthesis with a good accuracy. A material of the block body including SiO2 in an amount of 60.0 mass % to 80.0 mass %, Li2O in an amount of 10.0 mass % to 20.0 mass %, Al2O3 in an amount of 5.1 mass % to 10.0 mass %, wherein the block body is formed in a column, and a main crystalline phase of the block body is lithium disilicate.
    Type: Application
    Filed: July 9, 2019
    Publication date: October 31, 2019
    Inventors: Tomohiro HOSHINO, Go MASHIO, Tatsuya FUJIMOTO, Masatoshi YOSHINAGA, Hayato YOKOHARA, Daisuke OHTA
  • Patent number: 10405953
    Abstract: Provided is a method for quickly producing a dental prosthesis with a good accuracy. The method for producing a dental prosthesis including: a melting step of melting a material including no less than 60.0 mass % and no more than 80.0 mass % of SiO2, no less than 10.0 mass % and no more than 20.0 mass % of Li2O, and no less than 5.1 mass % and no more than 10.0 mass % of Al2O3; a glass blank production step of cooling to solidify the molten material to obtain a glass blank; a lithium disilicate blank production step of heating the glass blank to obtain a lithium disilicate blank whose main crystalline phase is lithium disilicate; and a processing step of processing the lithium disilicate by machining.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: September 10, 2019
    Assignee: GC CORPORATION
    Inventors: Tomohiro Hoshino, Go Mashio, Tatsuya Fujimoto, Masatoshi Yoshinaga, Hayato Yokohara, Daisuke Ohta
  • Publication number: 20190136035
    Abstract: Disclosed is an acrylic thermoplastic resin composition containing an acrylic multilayer structure polymer particle (A) and an acrylic block copolymer (B). The component (A) has, as an inner layer, a rubber component layer (I) of a copolymer of 50-99.99 mass % of an acrylic acid ester monomer unit, 49.99-0 mass % of an additional monofunctional monomer unit, and 0.01-10 mass % of a polyfunctional monomer unit, and has, as an outermost layer, a thermoplastic resin component layer (I1) of a copolymer of 40-100 mass % of a methacrylic acid ester monomer unit and 60-0 mass % of an additional monomer unit and having Mn of 30,000 or smaller. A layer (I)/layer (II) mass ratio is 30/70 to 90/10. An average particle size of the component (A) is 150 nm or smaller. The component (B) has Mw of 32,000 to 300,000. A mass ratio of (A)/(B) is 1/99 to 99/1.
    Type: Application
    Filed: April 26, 2017
    Publication date: May 9, 2019
    Applicant: KURARAY CO., LTD.
    Inventors: Yusaku NOMOTO, Daisuke OHTA