Patents by Inventor Mitsuharu Korogi

Mitsuharu Korogi 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).

  • Medical catheter tubes and process for production thereof
    Patent number: 8377352
    Abstract: A medical catheter tube containing a tetrafluoroethylene polymer, which has a wall thickness of 0.1 mm or below and exhibits a tensile strength (S1) at 1.0 mm displacement of 5.0 N/mm or above; and a process for the production of medical catheter tubes, characterized by molding a composition both a tetrafluoroethylene polymer and a lubricant having high affinity for the polymer by paste extrusion. The invention provides thin-wall medical catheter tubes excellent in elongation resistance, kink resistance and internal cavity lubricity.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: February 19, 2013
    Assignee: Kaneka Corporation
    Inventors: Satoshi Inamoto, Fumihiko Nakao, Mitsuharu Korogi, Tsuyoshi Mihayashi
  • Medical catheter tubes and process for production thereof
    Publication number: 20110180955
    Abstract: A medical catheter tube containing a tetrafluoroethylene polymer, which has a wall thickness of 0.1 mm or below and exhibits a tensile strength (S1) at 1.0 mm displacement of 5.0 N/mm or above; and a process for the production of medical catheter tubes, characterized by molding a composition both a tetrafluoroethylene polymer and a lubricant having high affinity for the polymer by paste extrusion. The invention provides thin-wall medical catheter tubes excellent in elongation resistance, kink resistance and internal cavity lubricity.
    Type: Application
    Filed: March 29, 2011
    Publication date: July 28, 2011
    Applicant: KANEKA CORPORATION
    Inventors: Satoshi Inamoto, Fumihiko Nakao, Mitsuharu Korogi, Tsuyoshi Mihayashi
  • Medical Catheter Tubes and Process for Production Thereof
    Publication number: 20090234329
    Abstract: A medical catheter tube containing a tetrafluoroethylene polymer, which has a wall thickness of 0.1 mm or below and exhibits a tensile strength (S1) at 1.0 mm displacement of 5.0 N/mm or above; and a process for the production of medical catheter tubes, characterized by molding a composition both a tetrafluoroethylene polymer and a lubricant having high affinity for the polymer by paste extrusion. The invention provides thin-wall medical catheter tubes excellent in elongation resistance, kink resistance and internal cavity lubricity.
    Type: Application
    Filed: October 17, 2006
    Publication date: September 17, 2009
    Applicant: KANEKA CORPORATION
    Inventors: Satoshi Inamoto, Fumihiko Nakao, Mitsuharu Korogi, Tsuyoshi Mihayashi
  • Balloon catheter and method of manufacturing the same
    Publication number: 20060276820
    Abstract: A medical balloon catheter according to the present invention includes a balloon having a groove and/or a projection helically provided relative to the longitudinal axis of the balloon. By such a structure, even after inflating the balloon once, for example, when the balloon is pushed into or removed through a severely stenosed lesion having a diameter smaller than that of the deflated balloon, the balloon can be easily wound more tightly. Therefore, pushing resistance can be reduced.
    Type: Application
    Filed: May 13, 2004
    Publication date: December 7, 2006
    Inventors: Youichi Yamaguchi, Mitsuharu Korogi