Patents by Inventor Kenichi Miyai

Kenichi Miyai 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: 20240085906
    Abstract: A reception processing unit receives a user operation performed with respect to an operation tool that causes a work vehicle to execute a predetermined motion. A motion processing unit causes the work vehicle to execute a motion corresponding to the user operation performed with respect to the operation tool. A travel processing unit switches from autonomous travel to manual travel when a change amount relating to the operation tool corresponding to the user operation exceeds a threshold while the work vehicle is performing autonomous travel. A setting processing unit sets the threshold based on at least one of setting information and work information of the work vehicle.
    Type: Application
    Filed: September 11, 2023
    Publication date: March 14, 2024
    Applicant: Yanmar Holdings Co., Ltd.
    Inventors: Koji Miyake, Yasuto Nishii, Kenichi Miyai
  • Patent number: 11758833
    Abstract: A work vehicle is presented with which it is possible to prevent an operator from being mislead in cases where the positioning status frequently changes. This work vehicle is provided with: a positioning unit that receives a positioning signal from a satellite positioning system, and measures the work vehicle position on the basis of the positioning signal; a control unit that determines the positioning accuracy on the basis of the positioning status of the positioning unit, and permits autonomous travel when the positioning accuracy is at least a prescribed accuracy; and a notification unit that executes, in accordance with a control performed by the control unit, a first notification indicating that the positioning accuracy is a first accuracy that is at least a prescribed accuracy and a second notification indicating that the positioning accuracy is a second accuracy that is at least a prescribed accuracy.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: September 19, 2023
    Assignee: Yanmar Power Technology Co., Ltd.
    Inventors: Ryohei Ueda, Tomoyuki Kuroda, Shinsuke Ozaki, Kenichi Miyai, Kenta Onishi
  • Publication number: 20220159898
    Abstract: A work vehicle is presented with which it is possible to prevent an operator from being mislead in cases where the positioning status frequently changes. This work vehicle is provided with: a positioning unit that receives a positioning signal from a satellite positioning system, and measures the work vehicle position on the basis of the positioning signal; a control unit that determines the positioning accuracy on the basis of the positioning status of the positioning unit, and permits autonomous travel when the positioning accuracy is at least a prescribed accuracy; and a notification unit that executes, in accordance with a control performed by the control unit, a first notification indicating that the positioning accuracy is a first accuracy that is at least a prescribed accuracy and a second notification indicating that the positioning accuracy is a second accuracy that is at least a prescribed accuracy.
    Type: Application
    Filed: January 9, 2020
    Publication date: May 26, 2022
    Applicant: Yanmar Power Technology Co., Ltd.
    Inventors: Ryohei Ueda, Tomoyuki Kuroda, Shinsuke Ozaki, Kenichi Miyai, Kenta Onishi
  • Publication number: 20210199191
    Abstract: The present invention comprises: a transmission device that shifts output to a travel unit from an engine by changing the position of a slide gear; a motor that changes the position of a ride gear; a cross-lever main transmission lever that is operable in the front-rear and left-right directions and is biased to return to a neutral operation position; and a control device that is configured so as to actuate the motor in response to the front-rear operation of the main transmission lever to switch the shift position of the transmission device and vary the function to be performed by the left-right operation of the main transmission lever according to the shift position of the transmission device.
    Type: Application
    Filed: April 4, 2019
    Publication date: July 1, 2021
    Applicant: Yanmar Power Technology Co., Ltd.
    Inventors: Tomoyuki Kuroda, Shinsuke Ozaki, Kenichi Miyai