Patents Assigned to Yamato Refractories & Co., Ltd.
  • Composite materials
    Patent number: 5368934
    Abstract: A composite material wherein a mixture of a phenolic or furan resin and an inorganic filler as matrix materials is incorporated in an inorganic fiber or heat-resistant organic fiber in the form of a long fiber bundle. The composite material has excellent characteristics such as heat resistance, strength and alkali resistance. The present invention can provide substitutes used in place of concrete reinforcing steel bars or steel frames which can be used in structures for building and civil engineering.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: November 29, 1994
    Assignees: Shimizu Corporation, Yamato Refractories & Co., Ltd.
    Inventors: Takayoshi Torii, Minoru Sugita, Toshiyuki Tachikawa