Patents by Inventor Akiharu Nishijima

Akiharu Nishijima 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: 10946794
    Abstract: A work machine management system includes: an operation range setting unit that sets an operation range in which a direction indicator of a work machine is operated; a traveling condition data generation unit that generates traveling condition data of the work machine; a blinker data setting unit that generates blinker data for controlling the direction indicator on the basis of the operation range and the traveling condition data; and an output device that outputs the blinker data to the work machine.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: March 16, 2021
    Assignee: KOMATSU LTD.
    Inventors: Masanori Ogihara, Koji Takeda, Tomonori Ozaki, Akiharu Nishijima, Ryuuen Kou
  • Publication number: 20210009155
    Abstract: An unmanned vehicle control system includes: a travel condition data acquisition unit that acquires travel condition data specifying a travel condition of an unmanned vehicle, the travel condition data including a target travel speed and a target azimuth of the unmanned vehicle at each of a plurality of travel points; a travel condition change unit that outputs a change command to change the travel condition specified by the travel condition data based on a difference in the target azimuth among the plurality of travel points; and a travel control unit that outputs a control command to control traveling of the unmanned vehicle based on the change command.
    Type: Application
    Filed: February 20, 2019
    Publication date: January 14, 2021
    Applicant: Komatsu Ltd.
    Inventors: Ryuu Yamamura, Akiharu Nishijima
  • Patent number: 10802493
    Abstract: A work machine management device includes a manned-vehicle-data acquisition unit configured to acquire position data of a manned vehicle including a first direction indicator and operation data of the first direction indicator, a target-travel-route generation unit configured to generate a target travel route for a work machine, a blinker-data setting unit configured to set blinker data for controlling a second direction indicator of the work machine on the basis of link data obtained by associating the position data of the manned vehicle and the operation data of the first direction indicator, and an output unit configured to output the blinker data to the work machine traveling along the target travel route.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: October 13, 2020
    Assignee: KOMATSU LTD.
    Inventors: Masanori Ogihara, Koji Takeda, Tomonori Ozaki, Akiharu Nishijima, Ryuuen Kou
  • Publication number: 20200293062
    Abstract: A work machine management system includes: an input data acquisition unit that acquires input data generated by an operation of an input device; a turn signal data setting unit that sets turn signal data for controlling a direction indicator of a work machine to each of a plurality of courses branching from an intersection based on the input data; and an output unit that outputs the turn signal data to the work machine.
    Type: Application
    Filed: December 26, 2016
    Publication date: September 17, 2020
    Applicants: Komatsu Ltd., Komatsu Ltd.
    Inventors: Masanori Ogihara, Koji Takeda, Tomonori Ozaki, Akiharu Nishijima, Ryuuen Kou
  • Patent number: 10549681
    Abstract: A work machine management system includes: an obstacle data acquisition unit that acquires position data of an obstacle; a detour course setting unit that sets detour course data that is a detour course of course data along which a work machine travels based on the position data of the obstacle; a turn signal data setting unit that sets turn signal data to control a direction indicator of the work machine in the detour course; and an output unit that outputs the turn signal data to the work machine.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: February 4, 2020
    Assignee: Komatsu LTD.
    Inventors: Masanori Ogihara, Koji Takeda, Tomonori Ozaki, Akiharu Nishijima, Ryuuen Kou
  • Publication number: 20190241119
    Abstract: A management system for a work vehicle, includes: a traveling condition data generation unit configured to generate traveling condition data of a work vehicle having a notification device configured to notify a moving direction; a notification data generation unit configured to generate notification data for controlling the notification device such that, based on the traveling condition data, the notification device operates in a first state at a time of moving forward of the work vehicle, and the notification device operates in a second state different from the first state at a time of moving backward of the work vehicle; and an output unit configured to output the notification data, to the work vehicle.
    Type: Application
    Filed: September 21, 2017
    Publication date: August 8, 2019
    Inventors: Koji Takeda, Akiharu Nishijima
  • Publication number: 20190227565
    Abstract: A management system for a work vehicle, includes: a traveling condition data generation unit configured to set traveling condition data including a first traveling route for making a work vehicle travel with forward movement and a second traveling route for making the work vehicle travel with backward movement, in a conveying path leading to a workplace where an operation of the work vehicle is performed; a specific area data acquisition unit configured to acquire specific area data indicating a specific area where the work vehicle is able to switch back in the conveying path; and a switchback command unit configured to output a command signal for switching back the work vehicle traveling on one of the first traveling route and the second traveling route at the specific area, and making the work vehicle travel on the other of the first traveling route and the second traveling route.
    Type: Application
    Filed: September 21, 2017
    Publication date: July 25, 2019
    Inventors: Koji Takeda, Akiharu Nishijima
  • Patent number: 10343595
    Abstract: A control system for a work machine includes: a turn determination unit configured to determine whether the work machine makes a turn with a predetermined curvature radius or less over a predetermined distance or more, based on running condition data including at least position data and target azimuth data for performing running control of the work machine; and a winkers control unit configured to output a winker control signal based on a determination result of the turn determination unit.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: July 9, 2019
    Assignee: Komatsu Ltd.
    Inventors: Masanori Ogihara, Akiharu Nishijima
  • Publication number: 20190163192
    Abstract: A management system for a work vehicle, includes: a traveling condition data generation unit configured to generate traveling condition data that causes a work vehicle to enter with forward movement, from an entrance of a workplace to a work point of the workplace, and exit with backward movement, from the work point to an exit of the workplace; and an output unit configured to output the traveling condition data to the work vehicle.
    Type: Application
    Filed: September 21, 2017
    Publication date: May 30, 2019
    Inventors: Koji Takeda, Akiharu Nishijima
  • Publication number: 20190138016
    Abstract: A work machine management device includes a manned-vehicle-data acquisition unit configured to acquire position data of a manned vehicle including a first direction indicator and operation data of the first direction indicator, a target-travel-route generation unit configured to generate a target travel route for a work machine, a blinker-data setting unit configured to set blinker data for controlling a second direction indicator of the work machine on the basis of link data obtained by associating the position data of the manned vehicle and the operation data of the first direction indicator, and an output unit configured to output the blinker data to the work machine traveling along the target travel route.
    Type: Application
    Filed: May 31, 2017
    Publication date: May 9, 2019
    Applicant: Komatsu Ltd.
    Inventors: Masanori Ogihara, Koji Takeda, Tomonori Ozaki, Akiharu Nishijima, Ryuuen Kou
  • Publication number: 20190084474
    Abstract: A work machine management system includes: an obstacle data acquisition unit that acquires position data of an obstacle; a detour course setting unit that sets detour course data that is a detour course of course data along which a work machine travels based on the position data of the obstacle; a turn signal data setting unit that sets turn signal data to control a direction indicator of the work machine in the detour course; and an output unit that outputs the turn signal data to the work machine.
    Type: Application
    Filed: December 26, 2016
    Publication date: March 21, 2019
    Inventors: Masanori Ogihara, Koji Takeda, Tomonori Ozaki, Akiharu Nishijima, Ryuuen Kou
  • Patent number: 10202116
    Abstract: A control system of a mining machine controls a driving device that drives a traveling device of the mining machine. The control system includes an acceleration command value calculation unit that calculates an acceleration command value for accelerating the mining machine, a correction value calculation unit that calculates a correction value for the acceleration command value based on a first driving force component of the driving device to cause the mining machine to travel at a target traveling speed and a second driving force component of the driving device to offset a resistance component against traveling of the mining machine, an addition processing unit that calculates a correction acceleration command value by adding the acceleration command value and the correction value, and an acceleration command value output unit that outputs the correction acceleration command value to the driving device.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: February 12, 2019
    Assignee: Komatsu Ltd.
    Inventors: Tatsuya Shiga, Ryuuen Kou, Akiharu Nishijima
  • Publication number: 20180354412
    Abstract: A work machine management system includes: an operation range setting unit that sets an operation range in which a direction indicator of a work machine is operated; a traveling condition data generation unit that generates traveling condition data of the work machine; a blinker data setting unit that generates blinker data for controlling the direction indicator on the basis of the operation range and the traveling condition data; and an output device that outputs the blinker data to the work machine.
    Type: Application
    Filed: November 15, 2016
    Publication date: December 13, 2018
    Inventors: Masanori Ogihara, Koji Takeda, Tomonori Ozaki, Akiharu Nishijima, Ryuuen Kou
  • Patent number: 10124805
    Abstract: A work vehicle includes: an engine; a plurality of drive wheels driven by the engine; and an operation controller executes first drive force control that brakes a slipping drive wheel out of the plurality of drive wheels and executes second drive force control that reduces output of the engine in accordance with the slip ratio of the slipping drive wheel during execution of the first drive force control.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: November 13, 2018
    Assignee: Komatsu Ltd.
    Inventors: Ryuuen Kou, Akiharu Nishijima, Shinya Kondou
  • Patent number: 10026308
    Abstract: A construction machine control system for a construction machine that travels along a travel route, includes: a position detection unit that detects a position of the construction machine; a non-contact sensor that detects a position of an object around the construction machine; and a measurement output unit that detects a position of a vertical projection that protrudes vertically from a detection result of the position detection unit and a detection result of the non-contact sensor and stores the detected position of the vertical projection in a map information storage unit as map information, wherein the measurement output unit determines whether the construction machine is in a state that decreases accuracy of the map information, and when it is determined that the construction machine is in the state that decreases the accuracy of the map information, the measurement output unit stops storing the map information.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: July 17, 2018
    Assignee: Komatsu Ltd.
    Inventors: Atsushi Sakai, Mitsuhiro Ryuman, Masanori Tojima, Akiharu Nishijima
  • Patent number: 9891627
    Abstract: A method for controlling a work machine, includes: detecting an area present ahead in a traveling direction of a work machine, in which a target traveling speed of the work machine is constant and is lower than a traveling speed at a current point of time; when the area is detected, obtaining a corrected value for correcting the accelerating instruction value; adding the corrected value and an accelerating instruction value for controlling a traveling speed of the work machine obtained based on the target traveling speed to obtain a corrected accelerating instruction value; and outputting the corrected accelerating instruction value to a drive device configured to drive a traveling device in the work machine.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: February 13, 2018
    Assignee: Komatsu Ltd.
    Inventors: Ryuuen Kou, Akiharu Nishijima
  • Patent number: 9869555
    Abstract: A construction machine control system for a construction machine that travels along a travel route, includes: a position detection unit that detects a position of the construction machine; a determination unit that determines whether an error in the position detected by the position detection unit is equal to or smaller than a predetermined error; a non-contact sensor that detects a position of an object around the construction machine; and a map information storage unit that extracts a detection result related to a vertical projection that protrudes vertically from a detection result of the non-contact sensor and stores the extracted detection result related to the vertical projection as map information when the determination unit determines that the error in the position detected by the position detection unit is equal to or smaller than the predetermined error.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: January 16, 2018
    Assignee: Komatsu Ltd.
    Inventors: Atsushi Sakai, Mitsuhiro Ryuman, Masanori Tojima, Akiharu Nishijima
  • Publication number: 20170210386
    Abstract: A work vehicle includes: an engine; a plurality of drive wheels driven by the engine; and an operation controller executes first drive force control that brakes a slipping drive wheel out of the plurality of drive wheels and executes second drive force control that reduces output of the engine in accordance with the slip ratio of the slipping drive wheel during execution of the first drive force control.
    Type: Application
    Filed: July 31, 2014
    Publication date: July 27, 2017
    Inventors: Ryuuen Kou, Akiharu Nishijima, Shinya Kondou
  • Publication number: 20170192434
    Abstract: A method for controlling a work machine, includes: detecting an area present ahead in a traveling direction of a work machine, in which a target traveling speed of the work machine is constant and is lower than a traveling speed at a current point of time; when the area is detected, obtaining a corrected value for correcting the accelerating instruction value; adding the corrected value and an accelerating instruction value for controlling a traveling speed of the work machine obtained based on the target traveling speed to obtain a corrected accelerating instruction value; and outputting the corrected accelerating instruction value to a drive device configured to drive a traveling device in the work machine.
    Type: Application
    Filed: November 30, 2015
    Publication date: July 6, 2017
    Applicant: Komatsu Ltd.
    Inventors: Ryuuen Kou, Akiharu Nishijima
  • Publication number: 20170174123
    Abstract: A control system for a work machine includes: a turn determination unit configured to determine whether the work machine makes a turn with a predetermined curvature radius or less over a predetermined distance or more, based on running condition data including at least position data and target azimuth data for performing running control of the work machine; and a winkers control unit configured to output a winker control signal based on a determination result of the turn determination unit.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Inventors: Masanori Ogihara, Akiharu Nishijima