Patents by Inventor Minoru Fuchimoto

Minoru Fuchimoto 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).

  • Production of thermoplastic polyurethane elastomer tube
    Patent number: 5498377
    Abstract: A method for producing a thermoplastic polyurethane elastomer tube where the temperature of the mandrel and the extrusion pressure used for extruding a thermoplastic polyurethane elastomer are determined before preparing the tube. The temperature of the mandrel and the extrusion pressure are set to overlap two predetermined temperature ranges. One temperature range permits hot drawing of the tube preform, and the second temperature range provides a tube preform free from the occurrence of bubbles on its surface. After the two temperature and extrusion pressure ranges are determined, a thermoplastic polyurethane elastomer is extruded on the periphery of a heated mandrel under pressure using a mandrel temperature and extrusion pressure where the two predetermined ranges overlap. Thereafter, the mandrel is pulled out to provide a tube preform, and the tube preform is hot drawn to produce a tube having a desired outer diameter.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: March 12, 1996
    Assignee: Mitsubishi Cable Industries, Ltd.
    Inventors: Hidenori Ozaki, Minoru Fuchimoto, Tamotsu Kaide