Patents by Inventor Yoshihiro Dougan

Yoshihiro Dougan 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: 9579988
    Abstract: A work vehicle which is provided with a battery and at least one motor, the motor being driven by electric power supplied from the battery, the work vehicle including: a charging terminal to which a feed terminal provided in a charging device disposed at an outside of the work vehicle is connected at a time of charging the battery; a communication terminal to which a communication terminal for the charging device to communicate with the work vehicle is connected at the time of charging the battery; and an in-vehicle controller which controls the work vehicle, and controls the charging device through the communication terminal at the time of charging the battery.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: February 28, 2017
    Assignee: Komatsu Ltd.
    Inventor: Yoshihiro Dougan
  • Patent number: 9487096
    Abstract: A charging device 2 is a device for charging a battery 30 of a battery-type forklift 1 provided with the battery and at least one motor, the motor driven by the power supplied from the battery. The charging device 2 includes: a power conversion unit 73 that converts an alternating-current power to direct-current power, a control unit 70 that controls charging of the battery 30 based on an instruction from an in-vehicle control device 60 mounted on the battery-type forklift 1, a feed terminal that supplies the direct-current power to the battery 30, a communication terminal for communicating with the battery-type forklift 1, and a startup terminal for transmitting a signal for staring up the in-vehicle control device 60.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: November 8, 2016
    Assignee: Komatsu Ltd.
    Inventor: Yoshihiro Dougan
  • Publication number: 20160221454
    Abstract: A work vehicle which is provided with a battery and at least one motor, the motor being driven by electric power supplied from the battery, the work vehicle including: a charging terminal to which a feed terminal provided in a charging device disposed at an outside of the work vehicle is connected at a time of charging the battery; a communication terminal to which a communication terminal for the charging device to communicate with the work vehicle is connected at the time of charging the battery; and an in-vehicle controller which controls the work vehicle, and controls the charging device through the communication terminal at the time of charging the battery.
    Type: Application
    Filed: August 2, 2013
    Publication date: August 4, 2016
    Applicant: KOMATSU LTD.
    Inventor: Yoshihiro Dougan
  • Publication number: 20150217651
    Abstract: A charging device 2 is a device for charging a battery 30 of a battery-type forklift 1 provided with the battery and at least one motor, the motor driven by the power supplied from the battery. The charging device 2 includes: a power conversion unit 73 that converts an alternating-current power to direct-current power, a control unit 70 that controls charging of the battery 30 based on an instruction from an in-vehicle control device 60 mounted on the battery-type forklift 1, a feed terminal that supplies the direct-current power to the battery 30, a communication terminal for communicating with the battery-type forklift 1, and a startup terminal for transmitting a signal for staring up the in-vehicle control device 60.
    Type: Application
    Filed: August 2, 2013
    Publication date: August 6, 2015
    Inventor: Yoshihiro Dougan