Patents by Inventor Masahiko Fumimoto

Masahiko Fumimoto 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).

  • System and method for polishing metal surface
    Patent number: 11440154
    Abstract: This document discloses a system and method for polishing a metal surface, using a grinding machine and a burnishing machine. The grinding machine comprises an arm coupled with a grinding wheel for grinding the internal surface of a workpiece, an arm rotation drive block configured to drive rotation of the arm around its longitudinal axis, an arm movement drive block configured to move the arm longitudinally and vertically, and rollers for rotating the workpiece around its cylindrical axis via friction with an external surface of the workpiece. The arm comprises a fixed main shaft, a universal joint shaft and a head section coupled with the grinding wheel, wherein the head section is configured to oscillate vertically, allowing the grinding wheel to follow up-and-down fluctuations of the workpiece. The burnishing machine is configured to tumble the workpiece including a tumbling detergent and tumbling beads therein.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: September 13, 2022
    Assignee: Samtech International, Inc.
    Inventors: Naoki Hashimotodani, Masahiko Fumimoto, Huu Minh Nguyen
  • Method for surface-finishing plastically-deformed metal liner and metal liner surface-finished by the method
    Patent number: 10590543
    Abstract: A method for surface-finishing one or more metal liners is provided, the method comprising chemical milling to remove wrinkled textures generated during the plastic deformation of the metal liners.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: March 17, 2020
    Assignee: Samtech International, Inc.
    Inventors: Naoki Hashimotodani, Tomonori Kubota, Masahiko Fumimoto, Huu Minh Nguyen
  • SYSTEM AND METHOD FOR POLISHING METAL SURFACE
    Publication number: 20190160621
    Abstract: This document discloses a system and method for polishing a metal surface, using a grinding machine and a burnishing machine. The grinding machine comprises an arm coupled with a grinding wheel for grinding the internal surface of a workpiece, an arm rotation drive block configured to drive rotation of the arm around its longitudinal axis, an arm movement drive block configured to move the arm longitudinally and vertically, and rollers for rotating the workpiece around its cylindrical axis via friction with an external surface of the workpiece. The arm comprises a fixed main shaft, a universal joint shaft and a head section coupled with the grinding wheel, wherein the head section is configured to oscillate vertically, allowing the grinding wheel to follow up-and-down fluctuations of the workpiece. The burnishing machine is configured to tumble the workpiece including a tumbling detergent and tumbling beads therein.
    Type: Application
    Filed: November 9, 2018
    Publication date: May 30, 2019
    Applicant: Samtech International, Inc.
    Inventors: Naoki Hashimotodani, Masahiko Fumimoto, Huu Minh Nguyen