Patents by Inventor Yositeru Ikeda

Yositeru Ikeda 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).

  • PRODUCTION METHOD OF CHEMICALLY STRENGTHENED GLASS, AND CHEMICALLY STRENGTHENED GLASS
    Publication number: 20220009830
    Abstract: The present invention relates to a method for producing a chemically strengthened glass, the method including, performing a chemical strengthening treatment including the following steps (1) to (3) to a glass having a specific composition, (1) a step of bringing the glass into contact with an inorganic salt composition including 70 mass % or more of potassium nitrate to perform ion exchange; (2) a step of bringing the glass having been ion-exchanged in step (1) into contact with an inorganic salt composition including 50 mass % or more of sodium nitrate to perform ion exchange; and (3) a step of bringing the glass having been ion-exchanged in step (2) into contact with an inorganic salt composition including 70 mass % or more of potassium nitrate to perform ion exchange.
    Type: Application
    Filed: September 28, 2021
    Publication date: January 13, 2022
    Applicant: AGC INC.
    Inventors: Izuru KASHIMA, Kaname SEKIYA, Akio SHIZUKAI, Yositeru IKEDA, Shogo SUEDA
  • Production method of chemically strengthened glass, and chemically strengthened glass
    Patent number: 11198642
    Abstract: The present invention relates to a method for producing a chemically strengthened glass, the method including, performing a chemical strengthening treatment including the following steps (1) to (3) to a glass having a specific composition, (1) a step of bringing the glass into contact with an inorganic salt composition including 70 mass % or more of potassium nitrate to perform ion exchange; (2) a step of bringing the glass having been ion-exchanged in step (1) into contact with an inorganic salt composition including 50 mass % or more of sodium nitrate to perform ion exchange; and (3) a step of bringing the glass having been ion-exchanged in step (2) into contact with an inorganic salt composition including 70 mass % or more of potassium nitrate to perform ion exchange.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: December 14, 2021
    Assignee: AGC INC.
    Inventors: Izuru Kashima, Kaname Sekiya, Akio Shizukai, Yositeru Ikeda, Shogo Sueda
  • PRODUCTION METHOD OF CHEMICALLY STRENGTHENED GLASS, AND CHEMICALLY STRENGTHENED GLASS
    Publication number: 20190225537
    Abstract: The present invention relates to a method for producing a chemically strengthened glass, the method including, performing a chemical strengthening treatment including the following steps (1) to (3) to a glass having a specific composition, (1) a step of bringing the glass into contact with an inorganic salt composition including 70 mass % or more of potassium nitrate to perform ion exchange; (2) a step of bringing the glass having been ion-exchanged in step (1) into contact with an inorganic salt composition including 50 mass % or more of sodium nitrate to perform ion exchange; and (3) a step of bringing the glass having been ion-exchanged in step (2) into contact with an inorganic salt composition including 70 mass % or more of potassium nitrate to perform ion exchange.
    Type: Application
    Filed: January 18, 2019
    Publication date: July 25, 2019
    Applicant: AGC INC.
    Inventors: Izuru KASHIMA, Kaname Sekiya, Akio Shizukai, Yositeru Ikeda, Shogo Sueda