Patents Assigned to Toyo-Sasaki Glass Co., Ltd.
  • Glass article
    Patent number: 8906506
    Abstract: A noble glass composition which is based on a known potassium-zinc crystal glass composition suitable for chemical strengthening, in which most of contained ZnO component is replaced with a combination of less expensive oxides. The noble glass composition is easily melted in a tank and formed by machine into table wares, and provides a chemical strengthened crystal glass article which has high practical strength as tableware and can be subjected to washing with an alkali.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: December 9, 2014
    Assignee: Toyo-Sasaki Glass Co., Ltd.
    Inventors: Noriaki Shibata, Hirokazu Toyoda, Keiko Tamamaki