Patents Assigned to Minoru Fujii
  • Refractory coating composition
    Patent number: 4802921
    Abstract: Refractory coating compositions comprising as the active components:(A) a water-soluble alkali metal silicate,(B) a hardening agent for the alkali metal silicate, and(C) a material having an ability to release the water contained therein in larger amounts at increased high temperatures.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: February 7, 1989
    Assignee: Minoru Fujii
    Inventor: Hideo Motoki