Patents by Inventor Sachie GOTO

Sachie GOTO 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).

  • Rotary cutting tool cutting insert and rotary cutting tool
    Patent number: 12226840
    Abstract: A straight line along the second line segment and a straight line along the fourth line segment form an acute angle. The straight line along the second line segment and the straight line along the third line segment form an obtuse angle. The straight line along the first line segment and the straight line along the fourth line segment form an obtuse angle. Each of the third curved portion and the fourth curved portion is larger in radius of curvature than the first curved portion and larger in radius of curvature than the second curved portion. In a direction perpendicular to the bottom surface, a distance between the top surface and the bottom surface is equal to a distance between the cutting edge and the bottom surface, or is shorter than the distance between the cutting edge and the bottom surface.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: February 18, 2025
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Kouki Matsubara, Sachie Goto, Kohei Ito, Toya Nonen
  • ROTARY CUTTING TOOL CUTTING INSERT AND ROTARY CUTTING TOOL
    Publication number: 20220339718
    Abstract: A straight line along the second line segment and a straight line along the fourth line segment form an acute angle. The straight line along the second line segment and the straight line along the third line segment form an obtuse angle. The straight line along the first line segment and the straight line along the fourth line segment form an obtuse angle. Each of the third curved portion and the fourth curved portion is larger in radius of curvature than the first curved portion and larger in radius of curvature than the second curved portion. In a direction perpendicular to the bottom surface, a distance between the top surface and the bottom surface is equal to a distance between the cutting edge and the bottom surface, or is shorter than the distance between the cutting edge and the bottom surface.
    Type: Application
    Filed: September 2, 2020
    Publication date: October 27, 2022
    Applicant: Sumitomo Electric Hardmetal Corp.
    Inventors: Kouki MATSUBARA, Sachie GOTO, Kohei ITO, Toya NONEN
  • Cutting tool
    Patent number: D1029058
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: May 28, 2024
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Kouki Matsubara, Sachie Goto, Kohei Ito, Toya Nonen