Patents by Inventor Kanako Koyama

Kanako Koyama 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).

  • Earth moving device for working vehicle
    Patent number: 8292000
    Abstract: An earth moving device for a working vehicle, in which earth and sand flowing rearward over an earth moving blade does not enter through a gap between a bush and a piston rod into an angle cylinder tube. An angle cylinder is formed by including an angle cylinder rod and an angle cylinder tube. The angle cylinder rod is pivotably supported on a vertically movable frame, and the angle cylinder tube is pivotably supported on the earth moving blade.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: October 23, 2012
    Assignee: Yanmar Co., Ltd.
    Inventors: Souta Takami, Akashi Ikematsu, Katsuyoshi Tsujimura, Yoshihiro Hayami, Kanako Koyama
  • Earth Moving Device for Working Vehicle
    Publication number: 20110011604
    Abstract: An earth moving device for a working vehicle, in which earth and sand flowing rearward over an earth moving blade does not enter through a gap between a bush and a piston rod into an angle cylinder tube. An angle cylinder is formed by including an angle cylinder rod and an angle cylinder tube. The angle cylinder rod is pivotably supported on a vertically movable frame, and the angle cylinder tube is pivotably supported on the earth moving blade.
    Type: Application
    Filed: February 3, 2009
    Publication date: January 20, 2011
    Applicant: Yanmar Co., Ltd.
    Inventors: Souta Takami, Akashi Ikematsu, Katsuyoshi Tsujimura, Yoshihiro Hayami, Kanako Koyama