Patents Assigned to Kanaflex Corporation
  • Synthetic resin pipe
    Patent number: 7156128
    Abstract: An object of the present invention is to provide a synthetic resin pipe configured to perform water stop accurately by forming a part connecting convex portions of an outer pipe to be flat without reducing flexibility in order to compose a synthetic resin pipe having flat inner and outer surfaces.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: January 2, 2007
    Assignee: Kanaflex Corporation
    Inventor: Shigeki Kanao