Patents by Inventor Daijiro YAMAMOTO

Daijiro YAMAMOTO 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).

  • Working machine
    Patent number: 11420693
    Abstract: A working machine includes a track guide for restraining a crawler belt from displacement in a left-and-right direction. The track guide includes a front attachment member and a rear attachment member each detachably attached to a crawler frame, and a right contact plate member and a left contact plate member laid between the front attachment member and the rear attachment member. Each of the right contact plate member and the left contact plate member includes a restraint plate and a reinforcement plate, and is supported on the front attachment member and the rear attachment member with an outer surface of the restraint plate and an upper surface of the reinforcement plate both being in surface contact with the front attachment member and the rear attachment member.
    Type: Grant
    Filed: June 16, 2020
    Date of Patent: August 23, 2022
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Tatsuya Tsuchihara, Yasunari Watanabe, Daijiro Yamamoto
  • WORKING MACHINE
    Publication number: 20200398914
    Abstract: A working machine includes a track guide for restraining a crawler belt from displacement in a left-and-right direction. The track guide includes a front attachment member and a rear attachment member each detachably attached to a crawler frame, and a right contact plate member and a left contact plate member laid between the front attachment member and the rear attachment member. Each of the right contact plate member and the left contact plate member includes a restraint plate and a reinforcement plate, and is supported on the front attachment member and the rear attachment member with an outer surface of the restraint plate and an upper surface of the reinforcement plate both being in surface contact with the front attachment member and the rear attachment member.
    Type: Application
    Filed: June 16, 2020
    Publication date: December 24, 2020
    Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Tatsuya TSUCHIHARA, Yasunari WATANABE, Daijiro YAMAMOTO