Patents by Inventor Utako OOUCHI

Utako OOUCHI 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).

  • Manufacturing method for deposition mask, metal plate used for producing deposition mask, and manufacturing method for said metal sheet
    Patent number: 10612124
    Abstract: The present invention provides a metal sheet, on a first surface of which a resist pattern having a narrow width can be stably provided. This manufacturing method for a metal sheet includes a preparation step of preparing a sheet material comprising an iron alloy that contains nickel. When a composition analysis of the first surface of the metal sheet obtained from the sheet material is performed using X-ray photoelectron spectroscopy, the ratio A1/A2 obtained by the result of the X-ray photoelectron spectroscopy does not exceed 0.4, where A1 is the sum of the peak area value of nickel oxide and the peak area value of nickel hydroxide, and A2 is the sum of the peak area value of iron oxide and the peak area value of iron hydroxide.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: April 7, 2020
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Chikao Ikenaga, Hiroaki Nakayama, Kazunari Ikeda, Chiaki Hatsuta, Utako Oouchi
  • Manufacturing method for deposition mask, metal plate used for producing deposition mask, and manufacturing method for said metal sheet
    Patent number: 10570498
    Abstract: The present invention provides a metal sheet, on a first surface of which a resist pattern having a narrow width can be stably provided. This manufacturing method for a metal sheet includes a preparation step of preparing a sheet material comprising an iron alloy that contains nickel. When a composition analysis of the first surface of the metal sheet obtained from the sheet material is performed using X-ray photoelectron spectroscopy, the ratio A1/A2 obtained by the result of the X-ray photoelectron spectroscopy does not exceed 0.4, where A1 is the sum of the peak area value of nickel oxide and the peak area value of nickel hydroxide, and A2 is the sum of the peak area value of iron oxide and the peak area value of iron hydroxide.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: February 25, 2020
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Chikao Ikenaga, Hiroaki Nakayama, Kazunari Ikeda, Chiaki Hatsuta, Utako Oouchi
  • MANUFACTURING METHOD FOR DEPOSITION MASK, METAL PLATE USED FOR PRODUCING DEPOSITION MASK, AND MANUFACTURING METHOD FOR SAID METAL SHEET
    Publication number: 20190161848
    Abstract: The present invention provides a metal sheet, on a first surface of which a resist pattern having a narrow width can be stably provided. This manufacturing method for a metal sheet includes a preparation step of preparing a sheet material comprising an iron alloy that contains nickel. When a composition analysis of the first surface of the metal sheet obtained from the sheet material is performed using X-ray photoelectron spectroscopy, the ratio A1/A2 obtained by the result of the X-ray photoelectron spectroscopy does not exceed 0.4, where A1 is the sum of the peak area value of nickel oxide and the peak area value of nickel hydroxide, and A2 is the sum of the peak area value of iron oxide and the peak area value of iron hydroxide.
    Type: Application
    Filed: January 17, 2019
    Publication date: May 30, 2019
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Chikao IKENAGA, Hiroaki Nakayama, Kazunari Ikeda, Chiaki Hatsuta, Utako Oouchi
  • MANUFACTURING METHOD FOR DEPOSITION MASK, METAL PLATE USED FOR PRODUCING DEPOSITION MASK, AND MANUFACTURING METHOD FOR SAID METAL SHEET
    Publication number: 20180023182
    Abstract: The present invention provides a metal sheet, on a first surface of which a resist pattern having a narrow width can be stably provided. This manufacturing method for a metal sheet includes a preparation step of preparing a sheet material comprising an iron alloy that contains nickel. When a composition analysis of the first surface of the metal sheet obtained from the sheet material is performed using X-ray photoelectron spectroscopy, the ratio A1/A2 obtained by the result of the X-ray photoelectron spectroscopy does not exceed 0.4, where A1 is the sum of the peak area value of nickel oxide and the peak area value of nickel hydroxide, and A2 is the sum of the peak area value of iron oxide and the peak area value of iron hydroxide.
    Type: Application
    Filed: February 5, 2016
    Publication date: January 25, 2018
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Chikao IKENAGA, Hiroaki NAKAYAMA, Kazunari IKEDA, Chiaki HATSUTA, Utako OOUCHI