Patents by Inventor Junichi KOORI

Junichi KOORI 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).

  • Method for producing endoscope flexible tube
    Patent number: 8580063
    Abstract: A method for producing an endoscope flexible tube comprising the steps of: preparing a flexible tube assembly including a spiral tube formed by spirally winding a metal strip and a cylindrical mesh sleeve, covering the spiral tube, formed by knitting metal wires; covering the flexible tube assembly with an outer coat from one end toward the other end of the flexible tube assembly by using an extrusion molding machine wherein the outer coat has a lower layer formed of a thermoplastic polyurethane elastomer and an upper layer formed of a thermoplastic polyester elastomer and the total thickness of the upper layer and the lower layer is made constant; and annealing the covered flexible tube assembly at a temperature in the vicinity of the softening point of the layer lower in softening point of the upper layer and the lower layer after the step of covering the flexible tube assembly with the outer coat, wherein in the step of covering with the outer coat, the melt viscosity ratio (thermoplastic polyurethane e
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: November 12, 2013
    Assignee: Fujifilm Corporation
    Inventor: Junichi Koori
  • METHOD FOR PRODUCING ENDOSCOPE FLEXIBLE TUBE
    Publication number: 20110220270
    Abstract: A method for producing an endoscope flexible tube comprising the steps of: preparing a flexible tube assembly including a spiral tube formed by spirally winding a metal strip and a cylindrical mesh sleeve, covering the spiral tube, formed by knitting metal wires; covering the flexible tube assembly with an outer coat from one end toward the other end of the flexible tube assembly by using an extrusion molding machine wherein the outer coat has a lower layer formed of a thermoplastic polyurethane elastomer and an upper layer formed of a thermoplastic polyester elastomer and the total thickness of the upper layer and the lower layer is made constant; and annealing the covered flexible tube assembly at a temperature in the vicinity of the softening point of the layer lower in softening point of the upper layer and the lower layer after the step of covering the flexible tube assembly with the outer coat, wherein in the step of covering with the outer coat, the melt viscosity ratio (thermoplastic polyurethane e
    Type: Application
    Filed: January 25, 2011
    Publication date: September 15, 2011
    Applicant: FUJIFILM CORPORATION
    Inventor: Junichi KOORI