Patents by Inventor Ryousuke Obika

Ryousuke Obika 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).

  • Insulated wire and method of producing the same
    Patent number: 10020092
    Abstract: An insulated wire which comprises an aluminum conductor, having: an adhesion layer formed by directly baking, on the aluminum conductor, varnish containing a carboxy group; an insulation layer as an outer layer of the adhesion layer; and a reinforcement insulation layer as an outer layer of the insulation layer; and a method of producing the same.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: July 10, 2018
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.
    Inventors: Makoto Oya, Ryousuke Obika, Keiichi Tomizawa
  • INSULATED WIRE AND METHOD OF PRODUCING THE SAME
    Publication number: 20170084361
    Abstract: An insulated wire which comprises an aluminum conductor, having: an adhesion layer formed by directly baking, on the aluminum conductor, varnish containing a carboxy group; an insulation layer as an outer layer of the adhesion layer; and a reinforcement insulation layer as an outer layer of the insulation layer; and a method of producing the same.
    Type: Application
    Filed: December 2, 2016
    Publication date: March 23, 2017
    Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.
    Inventors: Makoto OYA, Ryousuke OBIKA, Keiichi TOMIZAWA
  • Insulated wire
    Patent number: 7851705
    Abstract: An insulated wire, containing a metallic conductor, an insulating coating layer formed thereon, and a self-lubricating layer formed as an outermost layer on the insulating coating layer; in which the self-lubricating layer is made by mixing a polyamideimide resin coating with a stabilized isocyanate compound, a wax and an antioxidant; and in which a resin coating layer composed of the insulating coating layer and the self-lubricating layer has a dynamic hardness DH represented by formula, DH=3.8584×P/(D×D), of 0.6 or more; in which P (mN) represents a load when a triangular pyramid indenter with tip angle of 115° is pressed against the surface of the resin coating layer, and D (?.m) represents the indentation depth by the triangular pyramid indenter to the surface of the resin coating layer.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: December 14, 2010
    Assignee: The Furukawa Electric Co., Ltd.
    Inventor: Ryousuke Obika
  • INSULATED WIRE
    Publication number: 20090120659
    Abstract: An insulated wire, containing a metallic conductor, an insulating coating layer formed thereon, and a self-lubricating layer formed as an outermost layer on the insulating coating layer; in which the self-lubricating layer is made by mixing a polyamideimide resin coating with a stabilized isocyanate compound, a wax and an antioxidant; and in which a resin coating layer composed of the insulating coating layer and the self-lubricating layer has a dynamic hardness DH represented by formula (1) of 0.6 or more. DH=3.8584×P/(D×D)??Formula (1) in which P (mN) represents a load when a triangular pyramid indenter with tip angle of 115° is pressed against the surface of the resin coating layer, and D (?m) represents the indentation depth by the triangular pyramid indenter to the surface of the resin coating layer.
    Type: Application
    Filed: January 5, 2009
    Publication date: May 14, 2009
    Inventor: Ryousuke OBIKA