Patents by Inventor Mutsumi Touge

Mutsumi Touge 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).

  • Method of processing surface of high-performance materials which are difficult to process
    Patent number: 8877082
    Abstract: Disclosed is a processing method which can achieve a high processing rate, and is capable of making a surface smooth. In order to achieve this an SiC substrate is arranged in a potassium hydroxide solution containing hydrogen peroxide, and ultraviolent radiation is irradiated on the surface of the SiC substrate. An SiO2 layer is formed on the surface of the SiC substrate due to the irradiation of ultraviolet radiation, and this SiO2 layer is chemically removed by means of the potassium hydroxide solution, and also removed by a synthetic quartz surface plate.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: November 4, 2014
    Assignee: National University Corporation Kumamoto University
    Inventors: Akihisa Kubota, Mutsumi Touge
  • PROCESSING METHOD
    Publication number: 20130196513
    Abstract: Disclosed is a processing method which can achieve a high processing rate, and is capable of making a surface smooth, In order to achieve this an SiC substrate is arranged in a potassium hydroxide solution containing hydrogen peroxide, and ultraviolent radiation is irradiated on the surface of the SiC substrate.
    Type: Application
    Filed: March 18, 2011
    Publication date: August 1, 2013
    Inventors: Akihisa Kubota, Mutsumi Touge
  • ARTIFICIAL JOINT
    Publication number: 20120221110
    Abstract: An artificial joint includes a ball and a cup constituting a pair of joint members which forms a joint. A convex curved surface and a concave curved surface which constitute a pair of friction surfaces which slides relative to each other are provided between the pair of joint members. The convex curved surface which is at least one friction surface out of the convex curved surface and the concave curved surface includes: at least either one of groove-shaped recessed portions and hole-shaped recessed portions having a width gradually narrowed toward the inside of the convex curved surface from a surface side of the convex curved surface; and curved surface portions which smoothly connect inclined surface portions which form the recessed portions and a surface which forms a surface portion of the convex curved surface.
    Type: Application
    Filed: October 21, 2010
    Publication date: August 30, 2012
    Inventors: Yoshitaka Nakanishi, Mutsumi Touge
  • Method for manufacturing thin plate, piezoelectric plate, and piezoelectric vibrator
    Publication number: 20020027398
    Abstract: A method for manufacturing a thin plate includes steps of: securing the thin plate at a mounting platform; forming a metal plating film in contact with an external circumferential surface of the thin plate on a surface of the mounting platform; and grinding the thin plate until the thin plate achieves a specific thickness.
    Type: Application
    Filed: March 5, 2001
    Publication date: March 7, 2002
    Inventors: Noboru Ueda, Mutsumi Touge