Patents by Inventor Toshikatu Tanaka

Toshikatu Tanaka 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).

  • Glass fiber composition, glass fiber, and glass fiber containing composition material
    Patent number: 7989375
    Abstract: An object is to provide a readily fusible glass fiber composition that can alleviate environmental problem and reduce raw material cost by decreasing boron content, and that can facilitate the manufacturing of fine-count glass filament. A glass fiber composition of the present invention is an oxide glass composition, and has compositions of 0.01 to 3% of P2O5, 52 to 62% of SiO2, 10 to 16% of Al2O3, 0 to 8% of B2O3, 0 to 5% of MgO, 16 to 30% of CaO, and 0 to 2% of R2O(R?Li+N+K), which are in terms of oxide represented in mass percentage.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: August 2, 2011
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventor: Toshikatu Tanaka
  • Glass Fiber Composition, Glass Fiber, and Glass Fiber Containing Composition Material
    Publication number: 20090312171
    Abstract: An object is to provide a readily fusible glass fiber composition that can alleviate environmental problem and reduce raw material cost by decreasing boron content, and that can facilitate the manufacturing of fine-count glass filament. A glass fiber composition of the present invention is an oxide glass composition, and has compositions of 0.01 to 3% of P2O5, 52 to 62% of SiO2, 10 to 16% of Al2O3, 0 to 8% of B2O3, 0 to 5% of MgO, 16 to 30% of CaO, and 0 to 2% of R2O(R?Li+N+K), which are in terms of oxide represented in mass percentage.
    Type: Application
    Filed: July 3, 2006
    Publication date: December 17, 2009
    Inventor: Toshikatu Tanaka