Patents by Inventor Sakuro Nakamura

Sakuro Nakamura 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).

  • Patent number: 6305428
    Abstract: The hose of the present invention comprises a soft hose wall (A) and a spiral reinforcement (B) for retaining the configuration of the hose. The hose wall (A) is formed with a composition comprised of: a resin component (A1) containing a diene-series or hydrogenated diene-series rubber component, and an olefinic resin; and a lubricant (A2). The rubber component may be a random or block copolymer of styrene and butadiene. The olefinic resin may be a polypropylene-series resin. The lubricant (A2) may be a higher fatty acid or its derivative (e.g., a higher fatty acid amide), a higher alcohol or its derivative, a hydrocarbon-series wax, an organopolysiloxane, or fluorine-containing resin. The present invention provides a hose which is lighter, free from PVC, and capable of maintaining excellent flexibility even used for a long period of time.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: October 23, 2001
    Inventors: Sakuro Nakamura, Hidenori Shima