Patents by Inventor Kei Muneyasu

Kei Muneyasu 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).

  • SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING SAME
    Publication number: 20240079184
    Abstract: A solid electrolytic capacitor includes a capacitor element. The capacitor element includes an anode foil including a base material part and a porous part disposed on a surface of the base material part, a dielectric layer disposed on at least a part of a surface of the anode foil, a solid electrolyte layer covering at least a part of the dielectric layer, and a cathode lead-out layer covering at least a part of the solid electrolyte layer. The anode foil includes an anode section on which the solid electrolyte layer is not disposed, a cathode formation section on which the solid electrolyte layer is disposed, and a separation section located between the anode section and the cathode formation section. A first insulating material is disposed on a surface of the porous part in the separation section. And at least a part of a region of the porous part that is covered with the first insulating material includes a second insulating material.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 7, 2024
    Inventors: Kei HIROTA, Kyohei IWAOKA, Hitoshi FUKUI, Daisuke USA, Kouta MUNEYASU, Hiroki NAGAYAMA
  • Negative thermal expansion material and production method thereof
    Patent number: 11905175
    Abstract: A negative thermal expansion material, being formed from MxSryBazZn2Si2O7 (wherein M is one or more types of Na and Ca, and x+y+z=1, 0<x?0.5, 0.3<z<1.0), and an XRD peak intensity INTR and a background intensity IBG of a primary phase of an orthorhombic crystal structure which exhibits negative expansion characteristics satisfy a relation of INTE/IBG>15. An object of the present invention is to provide a negative thermal expansion material having a low specific gravity, and a negative thermal expansion material having a low Ba content.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: February 20, 2024
    Assignee: JX METALS CORPORATION
    Inventors: Yoshiki Yamazaki, Kei Muneyasu, Makoto Mikami
  • NEGATIVE THERMAL EXPANSION MATERIAL AND PRODUCTION METHOD THEREOF
    Publication number: 20210024360
    Abstract: A negative thermal expansion material, being formed from MxSryBazZn2Si2O7 (wherein M is one or more types of Na and Ca, and x+y+z=1, 0<x?0.5, 0.3<z<1.0), and an XRD peak intensity INTR and a background intensity IBG of a primary phase of an orthorhombic crystal structure which exhibits negative expansion characteristics satisfy a relation of INTE/IBG>15. An object of the present invention is to provide a negative thermal expansion material having a low specific gravity, and a negative thermal expansion material having a low Ba content.
    Type: Application
    Filed: January 28, 2020
    Publication date: January 28, 2021
    Inventors: Yoshiki Yamazaki, Kei Muneyasu, Makoto Mikami