Patents by Inventor Mariko Harigaya

Mariko Harigaya 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).

  • Thermoplastic polymer composition, production method thereof, and shaped article and electric cable obtained therefrom
    Patent number: 9403975
    Abstract: Propylene-based resin compositions contain an inorganic filler in a high ratio and are excellent in flexibility, mechanical strength, elongation at break, heat resistance, scratch resistance, whitening resistance and flame retardancy. Shaped articles comprise the compositions. A first propylene-based resin composition of the present invention contains 5 to 64.9% by weight of a propylene-based polymer (A) having a melting point, as measured by differential scanning calorimetry (DSC), in the range of 120° C. to 170° C.; 0 to 59.9% by weight of a propylene-based polymer (B) having a melting point, as measured by differential scanning calorimetry (DSC), of less than 120° C. or having no observed melting point; 0.1 to 30% by weight of a graft-modified propylene-based polymer (C) obtained by graft modifying a propylene-based polymer having a melting point, as measured by differential scanning calorimetry (DSC), of less than 120° C.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: August 2, 2016
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hiroshi Uehara, Mariko Harigaya, Masayoshi Yamaguchi
  • Thermoplastic polymer composition, production method thereof, and shaped article and electric cable obtained therefrom
    Publication number: 20080023215
    Abstract: Propylene-based resin compositions contain an inorganic filler in a high ratio and are excellent in flexibility, mechanical strength, elongation at break, heat resistance, scratch resistance, whitening resistance and flame retardancy. Shaped articles comprise the compositions. A first propylene-based resin composition of the present invention contains 5 to 64.9% by weight of a propylene-based polymer (A) having a melting point, as measured by differential scanning calorimetry (DSC), in the range of 120° C. to 170° C.; 0 to 59.9% by weight of a propylene-based polymer (B) having a melting point, as measured by differential scanning calorimetry (DSC), of less than 120° C. or having no observed melting point; 0.1 to 30% by weight of a graft-modified propylene-based polymer (C) obtained by graft modifying a propylene-based polymer having a melting point, as measured by differential scanning calorimetry (DSC), of less than 120° C.
    Type: Application
    Filed: March 30, 2007
    Publication date: January 31, 2008
    Inventors: Hiroshi Uehara, Mariko Harigaya, Masayoshi Yamaguchi