Patents Assigned to Asabi Glass Company, Limited
  • Glass for substrate and glass substrate
    Patent number: 6949485
    Abstract: A glass for substrate, which consists, as represented by mass percentage, essentially of: SiO2 40 to 59%, Al2O3 ?5 to 20%, B2O3 ?0 to 8%, MgO ?0 to 10%, CaO ?0 to 12%, SrO ?2 to 20%, BaO ?0 to 2%, ZnO ?0 to 4%, Li2O ?0 to 2%, Na2O ?0 to 10%, K2O ?0 to 12%, TiO2 ?0 to 10%, and ZrO2 ?0 to 5%, wherein MgO+CaO+SrO+BaO is at least 15%.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: September 27, 2005
    Assignee: Asabi Glass Company, Limited
    Inventors: Tetsuya Nakashima, Yasumasa Nakao