Patents by Inventor Daisuke IRAHARA

Daisuke IRAHARA 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).

  • Ship handling device
    Patent number: 10782692
    Abstract: A ship handling device capable of executing dynamic positioning control. While the dynamic positioning control is being active, if a distance deviation from a target position exceeds a predetermined value and a first condition that a state where a moving amount of the ship per unit time is not more than a predetermined amount has continued for a predetermined period is satisfied, or if an orientation deviation from a target orientation exceeds a predetermined value and a second condition that a state where a turning amount of the ship per unit time is not more than a predetermined amount has continued for a predetermined period is satisfied, a thrust setting value resulting from the dynamic positioning control at a determination on the first or second condition is stored as a reference value, and the reference value is added to a thrust setting value subsequently resulting from the dynamic positioning control.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: September 22, 2020
    Assignee: YANMAR CO., LTD.
    Inventors: Gakuji Tamura, Daisuke Irahara, Akiyoshi Hayashi
  • SHIP HANDLING DEVICE
    Publication number: 20190041857
    Abstract: A ship handling device capable of executing dynamic positioning control. While the dynamic positioning control is being active, if a distance deviation from a target position exceeds a predetermined value and a first condition that a state where a moving amount of the ship per unit time is not more than a predetermined amount has continued for a predetermined period is satisfied, or if an orientation deviation from a target orientation exceeds a predetermined value and a second condition that a state where a turning amount of the ship per unit time is not more than a predetermined amount has continued for a predetermined period is satisfied, a thrust setting value resulting from the dynamic positioning control at a determination on the first or second condition is stored as a reference value, and the reference value is added to a thrust setting value subsequently resulting from the dynamic positioning control.
    Type: Application
    Filed: June 24, 2016
    Publication date: February 7, 2019
    Applicant: Yanmar Co., Ltd.
    Inventors: Gakuji TAMURA, Daisuke IRAHARA, Akiyoshi HAYASHI