Patents by Inventor Junji Morikawa

Junji Morikawa 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).

  • Spin-forming method, spin-forming apparatus, and catalytic converter
    Patent number: 7143619
    Abstract: While a material pipe and a roller are revolved relative to each other with a predetermined radius, the material pipe and the roller are moved relative to each other in the direction of progress of forming by eccentrically moving the center axis of the material pipe and the revolution axis of the roller relative to each other and simultaneously moving the material pipe and the roller relative to each other in the directions of the axis. During movement in the direction of progress of the forming, an end portion of the material pipe is deflected by controlling the axis-direction moving portion so that the roller is moved relative to the material pipe in the direction of the axis when the circumferential position of the roller, with respect to a circumference of the material pipe, changes from an inner side of the direction of deflection toward an outer side of the direction of deflection.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: December 5, 2006
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Junji Morikawa, Masashi Onuma
  • Spin-forming method, spin-forming apparatus, and catalytic converter
    Publication number: 20030068256
    Abstract: While a material pipe and a roller are revolved relative to each other with a predetermined radius, the material pipe and the roller are moved relative to each other in the direction of progress of forming by eccentrically moving the center axis of the material pipe and the revolution axis of the roller relative to each other and simultaneously moving the material pipe and the roller relative to each other in the directions of the axis. During movement in the direction of progress of the forming, an end portion of the material pipe is deflected by controlling the axis-direction moving portion so that the roller is moved relative to the material pipe in the direction of the axis when the circumferential position of the roller, with respect to a circumference of the material pipe, changes from an inner side of the direction of deflection toward an outer side of the direction of deflection.
    Type: Application
    Filed: October 1, 2002
    Publication date: April 10, 2003
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Junji Morikawa, Masashi Onuma