Patents by Inventor Hiroki Obata

Hiroki Obata 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).

  • CERAMIC ELECTRONIC COMPONENT AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20260024704
    Abstract: A main body has a first surface, and a second surface opposite to the first surface, the main body including a ceramic portion. At least one external electrode includes a first portion on the first surface of the main body. A fluorine compound exists on a surface of the first portion of the at least one external electrode.
    Type: Application
    Filed: September 26, 2025
    Publication date: January 22, 2026
    Inventors: Ryusuke IKEDA, Hiroki OBATA, Tomohiko HIBINO, Isamu OGUMA, Hiroto KODERA
  • Method for producing piezoelectric element
    Patent number: 11515470
    Abstract: Provided is a method for producing a piezoelectric element in which a piezoelectric body substrate piece is subjected to polarization treatment and a piezoelectric element is produced. The method includes a first step in which the piezoelectric body substrate piece is held on a flat plate-shaped slightly adhesive sheet and a second step in which voltage is applied to the piezoelectric body substrate piece held on the slightly adhesive sheet and the piezoelectric body substrate piece is subjected to polarization treatment.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: November 29, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Hiroki Obata, Masayuki Uetani, Ryusuke Ikeda
  • Method for inspecting piezoelectric element
    Patent number: 11262394
    Abstract: Provided is a method for inspecting a piezoelectric element in which voltage is applied to a piezoelectric element and evaluation of the electrical characteristics of the piezoelectric element is performed. The method includes a first step in which the piezoelectric element is held on a flat plate-shaped slightly adhesive sheet and a second step in which voltage is applied to the piezoelectric element held on the slightly adhesive sheet and evaluation of the electrical characteristics of the piezoelectric element is performed.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: March 1, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Hiroki Obata, Masayuki Uetani, Ryusuke Ikeda
  • METHOD FOR PRODUCING PIEZOELECTRIC ELEMENT
    Publication number: 20200212288
    Abstract: Provided is a method for producing a piezoelectric element in which a piezoelectric body substrate piece is subjected to polarization treatment and a piezoelectric element is produced. The method includes a first step in which the piezoelectric body substrate piece is held on a flat plate-shaped slightly adhesive sheet and a second step in which voltage is applied to the piezoelectric body substrate piece held on the slightly adhesive sheet and the piezoelectric body substrate piece is subjected to polarization treatment.
    Type: Application
    Filed: March 10, 2020
    Publication date: July 2, 2020
    Applicant: NGK Insulators, Ltd.
    Inventors: Hiroki OBATA, Masayuki UETANI, Ryusuke IKEDA
  • METHOD FOR INSPECTING PIEZOELECTRIC ELEMENT
    Publication number: 20200209302
    Abstract: Provided is a method for inspecting a piezoelectric element in which voltage is applied to a piezoelectric element and evaluation of the electrical characteristics of the piezoelectric element is performed. The method includes a first step in which the piezoelectric element is held on a flat plate-shaped slightly adhesive sheet and a second step in which voltage is applied to the piezoelectric element held on the slightly adhesive sheet and evaluation of the electrical characteristics of the piezoelectric element is performed.
    Type: Application
    Filed: March 10, 2020
    Publication date: July 2, 2020
    Applicant: NGK Insulators, Ltd.
    Inventors: Hiroki Obata, Masayuki Uetani, Ryusuke Ikeda