Patents by Inventor Yoshiki Irei

Yoshiki Irei 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).

  • Apparatus and method for cutting inner surface of hole
    Patent number: 10946456
    Abstract: A hole inner-surface cutting apparatus includes a working head composed of a rotatable body having a cutting tool and a main body, a rotation rod for rotating the rotatable body, and a stroke rod for stroking the working head. At least three positioning mechanisms for positioning the working head along a radial direction in the penetrating hole is provided on the main body. Each of the positioning mechanisms has three sliders arranged radially, guide rollers respectively disposed on distal ends of the sliders, a piston for pressing the sliders radially outward, and a fluid pressure chamber for actuating the piston. Further provided is a controller for controlling fluid pressures in the fluid pressure chambers of the positioning mechanisms independently from each other.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: March 16, 2021
    Assignee: IHI Corporation
    Inventors: Akiyuki Nishitani, Michiko Enda, Yoshiki Irei, Akira Nakanishi
  • APPARATUS AND METHOD FOR CUTTING INNER SURFACE OF HOLE
    Publication number: 20190337058
    Abstract: A hole inner-surface cutting apparatus includes a working head composed of a rotatable body having a cutting tool and a main body, a rotation rod for rotating the rotatable body, and a stroke rod for stroking the working head. At least three positioning mechanisms for positioning the working head along a radial direction in the penetrating hole is provided on the main body. Each of the positioning mechanisms has three sliders arranged radially, guide rollers respectively disposed on distal ends of the sliders, a piston for pressing the sliders radially outward, and a fluid pressure chamber for actuating the piston. Further provided is a controller for controlling fluid pressures in the fluid pressure chambers of the positioning mechanisms independently from each other.
    Type: Application
    Filed: July 16, 2019
    Publication date: November 7, 2019
    Applicant: IHI Corporation
    Inventors: Akiyuki Nishitani, Michiko Enda, Yoshiki Irei, Akira Nakanishi