Patents by Inventor Eiji Takashima

Eiji Takashima 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: 11660656
    Abstract: A method manufactures a vehicle wheel that includes a wheel rim having a cylindrical shape and a wheel disc provided on an inner peripheral side of the wheel rim. The method includes forming a workpiece of the vehicle wheel by casting or forging, the workpiece being a metal alloy workpiece; cutting a part of the workpiece to form a cut surface; coating, with a colored paint, the cut surface, an edge where the cut surface intersects a surface of the workpiece, and at least a portion around the edge in the surface of the workpiece; and chamfering the edge to form a bright surface where the workpiece is exposed, after coating the cut surface, the edge, and at least the portion around the edge.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: May 30, 2023
    Assignee: CENTRAL MOTOR WHEEL CO., LTD.
    Inventor: Eiji Takashima
  • Publication number: 20220288668
    Abstract: A method for manufacturing a vehicle wheel is a method for manufacturing a vehicle wheel including a wheel rim having a substantially cylindrical shape and a wheel disc provided on an inner peripheral side of the wheel rim. The method includes forming a workpiece of the vehicle wheel by casting or forging, the workpiece being a light metal workpiece; cutting a part of the workpiece to form a cut surface; coating, with a colored paint, the cut surface, an edge where the cut surface intersects a surface of the workpiece, and at least a portion around the edge in the surface of the workpiece; and chamfering the edge to form a bright surface where the workpiece is exposed, after coating the cut surface, the edge, and at least the portion around the edge.
    Type: Application
    Filed: December 6, 2021
    Publication date: September 15, 2022
    Applicant: CENTRAL MOTOR WHEEL CO., LTD.
    Inventor: Eiji TAKASHIMA
  • Patent number: 9333552
    Abstract: A recess is formed on the periphery of each of through-holes that go through a rim cavity, and the outer surface of a rim part is cut while a seal member for sealing the through-hole is positioned on the recess. It is thereby possible to stably manufacture a vehicle wheel in which swarf tends not to remain inside the rim cavity. Furthermore, it is not necessary to avoid the seal member for sealing the through-hole when cutting the outer surface of the rim part, and the outer surface of the rim part can be cut without any distinction having to be made between the periphery of the through-hole and the rest of the outer surface. Any increase in manufacturing costs can be minimized.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: May 10, 2016
    Assignee: CENTRAL MOTOR WHEEL CO., LTD.
    Inventors: Masahide Furukawa, Fumito Inuzuka, Eiji Takashima
  • Publication number: 20130239411
    Abstract: A recess is formed on the periphery of each of through-holes that go through a rim cavity, and the outer surface of a rim part is cut while a seal member for sealing the through-hole is positioned on the recess. It is thereby possible to stably manufacture a vehicle wheel in which swarf tends not to remain inside the rim cavity. Furthermore, it is not necessary to avoid the seal member for sealing the through-hole when cutting the outer surface of the rim part, and the outer surface of the rim part can be cut without any distinction having to be made between the periphery of the through-hole and the rest of the outer surface. Any increase in manufacturing costs can be minimized.
    Type: Application
    Filed: February 23, 2011
    Publication date: September 19, 2013
    Applicant: CENTRAL MOTOR WHEEL CO., LTD.
    Inventors: Masahide Furukawa, Fumito Inuzuka, Eiji Takashima