Patents Examined by Edgardo San Martini
  • Duct
    Patent number: 9057533
    Abstract: A duct of a foamed blow-molded article that is constituted of a polyolefin-based resin with a bending elastic modulus of 800-1,300 MPa, that has an average apparent density (D) of 0.1 to 0.4 g/cm3 and an average thickness (T) [cm] providing D×T2 of 0.005 to 0.04 g/cm, and that has an outer surface side region and an inner surface side region having an average apparent density lower than that of the outer surface region.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: June 16, 2015
    Assignee: JSP CORPORATION
    Inventor: Tatsuya Koizumi