Patents by Inventor Takahiro UTSUGI

Takahiro UTSUGI 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 COMPOSITION FOR GLASS FIBER, GLASS FIBER, GLASS FIBER WOVEN FABRIC, AND GLASS FIBER REINFORCED RESIN COMPOSITION
    Publication number: 20230312394
    Abstract: To provide a glass composition for glass fiber that includes biosolubility and can achieve long fiber formation. The glass composition for glass fiber of the present invention includes SiO2 in the range of 35.0 to 55.0% by mass, B2O3 in the range of 10.0 to 30.0% by mass, Al2O3 in the range of 14.5 to 30.0% by mass, and CaO and MgO in the range of 8.7 to 25.0% by mass in total, with respect to the total amount, and the content S of SiO2, the content B of B2O3, the content A of Al2O3, the content C of CaO, and the content M of MgO satisfy the following formula (1): 11.3 ? S × C + M / A + B ? 20.
    Type: Application
    Filed: December 23, 2021
    Publication date: October 5, 2023
    Inventors: Takashi NONAKA, Jun ITO, Takahiro UTSUGI, Koichi NAKAMURA, Norio HIRAYAMA, Hidero UNUMA