Patents by Inventor Jumpei KAMIYA

Jumpei KAMIYA 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: 20230116247
    Abstract: This vehicle relative-position calculation device includes: a vehicle state information acquisition unit for acquiring state information of an own vehicle during traveling; a surrounding object information acquisition unit for acquiring information of a surrounding object around the own vehicle; a relative-position information conversion input unit to which relative-position information determined from the state information of the own vehicle and the information of the surrounding object, is inputted, and which converts the inputted relative-position information to relative-position information for which a specific position on the own vehicle is set as an origin; a position information storage unit which stores the relative-position information converted and a vehicle-fixed coordinate conversion unit to which the state information of the own vehicle acquired, is inputted, and which converts the relative-position information stored in the position information storage unit to present-time relative-position info
    Type: Application
    Filed: April 28, 2020
    Publication date: April 13, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Jumpei KAMIYA, Masaya ENDO
  • Patent number: 11371213
    Abstract: Provided is a wheel loader capable of moving up a lift arm in a short time during excavation work. A wheel loader comprises a controller configured to control maximum traction force of the wheel loader and input torque of a working device hydraulic pump, and include a specific condition determination section configured to determine whether a specific condition for specifying excavation work is satisfied, an elapsed time measurement section configured to measure an elapsed time from start of the excavation work, and an input torque control section configured to limit the input torque to a first input torque value when the specific condition is satisfied and increase the input torque from the first input torque value when a second set time elapses from the elapse of a first set time.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: June 28, 2022
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Koji Hyodo, Tetsuji Tanaka, Isamu Aoki, Kouji Shimazaki, Jumpei Kamiya
  • Patent number: 10851522
    Abstract: The work vehicle includes: a working device; an auxiliary machine; and a priority valve that is switched between a normal position for directing pressure oil from an accessory pump toward the auxiliary machine and a merging position for directing the pressure oil from the accessory pump toward the working device. The work vehicle includes a control device that holds the priority valve in the normal position in case either the forward direction or the reverse direction which is indicated by a forward reverse operating device and a travel direction of the work vehicle do not match each other, and that switches the priority valve to the merging position in case either the forward direction or the reverse direction which is indicated by the forward reverse operating device and a travel direction of the work vehicle match each other and an operating device is in an operated state.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: December 1, 2020
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Jumpei Kamiya, Hideyuki Tanaka
  • Publication number: 20200208377
    Abstract: Provided is a wheel loader capable of moving up a lift arm in a short time during excavation work. A wheel loader comprises a controller configured to control maximum traction force of the wheel loader and input torque of a working device hydraulic pump, and include a specific condition determination section configured to determine whether a specific condition for specifying excavation work is satisfied, an elapsed time measurement section configured to measure an elapsed time from start of the excavation work, and an input torque control section configured to limit the input torque to a first input torque value when the specific condition is satisfied and increase the input torque from the first input torque value when a second set time elapses from the elapse of a first set time.
    Type: Application
    Filed: December 26, 2018
    Publication date: July 2, 2020
    Inventors: Koji HYODO, Tetsuji TANAKA, Isamu AOKI, Kouji SHIMAZAKI, Jumpei KAMIYA
  • Publication number: 20200087892
    Abstract: The work vehicle includes: a working device; an auxiliary machine; and a priority valve that is switched between a normal position for directing pressure oil from an accessory pump toward the auxiliary machine and a merging position for directing the pressure oil from the accessory pump toward the working device. The work vehicle includes a control device that holds the priority valve in the normal position in case either the forward direction or the reverse direction which is indicated by a forward reverse operating device and a travel direction of the work vehicle do not match each other, and that switches the priority valve to the merging position in case either the forward direction or the reverse direction which is indicated by the forward reverse operating device and a travel direction of the work vehicle match each other and an operating device is in an operated state.
    Type: Application
    Filed: March 2, 2017
    Publication date: March 19, 2020
    Inventors: Jumpei KAMIYA, Hideyuki TANAKA