Patents by Inventor Yasuko Dotani

Yasuko Dotani 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).

  • Low melting point glass and glass ceramic composition
    Patent number: 6355586
    Abstract: A low melting point glass consisting essentially of, as represented by mol % based on the following oxides: Mol % SnO   2 to 37.5, ZnO 5 to 73, P2O5 16 to 50,  Li2O 0 to 9,  Na2O 0 to 9,  K2O 0 to 9,  Al2O3 0 to 20, B2O3 0 to 30, SiO2 0 to 20, MgO 0 to 35, CaO 0 to 35, SrO 0 to 35, BaO 0 to 35, In2O3 0 to 10, WO3 0 to 10, wherein SnO+ZnO+P2O5+B2O3 is at least 76 mol %, Li2O+Na2O+K2O is from 0 to 9 mol %, MgO+CaO+SrO+BaO is from 0 to 35 mol %, and the molar ratio of SnO to ZnO is less than 1.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: March 12, 2002
    Assignee: Asahi Glass Company, Limited
    Inventors: Hiroshi Usui, Yasuko Dotani, Ryuichi Tanabe, Tsuneo Manabe