Patents by Inventor Kyushiro IGARASHI

Kyushiro IGARASHI 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).

  • Cover glass for display, in-vehicle display device, and manufacturing method of cover glass for display
    Patent number: 11866365
    Abstract: The present invention relates to a cover glass for a display, which is a glass plate having a first main surface and a second main surface. The cover glass contains, as represented by mol percentage based on oxides, from 50 to 75% of SiO2, from 5 to 20% of Al2O3, from 2 to 20% of Na2O, from 0 to 6% of K2O, from 0 to 15% of MgO, from 0 to 10% of a total amount (CaO+SrO+BaO) of CaO, SrO and BaO, from 0 to 5% of a total amount (ZrO2+TiO2) of ZrO2 and TiO2, from 0 to 10% of B2O3, and from 0 to 20% of Li2O. The cover glass has a ream minimum distance of 100 mm or more and 1,000 mm or less, and a ream period of 1 mm or more and 30 mm or less.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: January 9, 2024
    Assignee: AGC Inc.
    Inventors: Kazutaka Otsuka, Kyushiro Igarashi, Takeshi Shimizu, Minoru Tamada
  • COVER GLASS FOR DISPLAY, IN-VEHICLE DISPLAY DEVICE, AND MANUFACTURING METHOD OF COVER GLASS FOR DISPLAY
    Publication number: 20210214268
    Abstract: The present invention relates to a cover glass for a display, which is a glass plate having a first main surface and a second main surface. The cover glass contains, as represented by mol percentage based on oxides, from 50 to 75% of SiO2, from 5 to 20% of Al2O3, from 2 to 20% of Na2O, from 0 to 6% of K2O, from 0 to 15% of MgO, from 0 to 10% of a total amount (CaO+SrO+BaO) of CaO, SrO and BaO, from 0 to 5% of a total amount (ZrO2+TiO2) of ZrO2 and TiO2, from 0 to 10% of B2O3, and from 0 to 20% of Li2O. The cover glass has a ream minimum distance of 100 mm or more and 1,000 mm or less, and a ream period of 1 mm or more and 30 mm or less.
    Type: Application
    Filed: January 8, 2021
    Publication date: July 15, 2021
    Applicant: AGC Inc.
    Inventors: Kazutaka OTSUKA, Kyushiro IGARASHI, Takeshi SHIMIZU, Minoru TAMADA