Patents by Inventor Tatsuro KAKAMI

Tatsuro KAKAMI 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).

  • Spinning apparatus and spinning method
    Patent number: 10946428
    Abstract: A spinning apparatus for decreasing by spinning a thickness of a portion of a tube material having a uniform thickness except at a first axial end portion is disclosed. The spinning apparatus includes a spindle-side chuck having a conical concavity and a mandrel. The mandrel has a mandrel-side chuck formed in a form of a conical convexity corresponding in configuration to the conical concavity of the spindle-side chuck and a cylindrical portion for supporting the tube material. The spinning apparatus further includes a spinning roll for decreasing the thickness of the tube material by pressing the spinning roll against the tube material when the tube material is supported by the cylindrical portion of the mandrel.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: March 16, 2021
    Assignee: TOPY KOGYO KABUSHIKI KAISHA
    Inventors: Kenji Yoshii, Hiroyasu Kato, Tatsuro Kakami, Keitaro Enami, Yuji Iwakura
  • SPINNING APPARATUS AND SPINNING METHOD
    Publication number: 20190022728
    Abstract: A spinning apparatus for decreasing by spinning a thickness of a portion of a tube material having a uniform thickness except at a first axial end portion is disclosed. The spinning apparatus includes a spindle-side chuck having a conical concavity and a mandrel. The mandrel has a mandrel-side chuck formed in a form of a conical convexity corresponding in configuration to the conical concavity of the spindle-side chuck and a cylindrical portion for supporting the tube material. The spinning apparatus further includes a spinning roll for decreasing the thickness of the tube material by pressing the spinning roll against the tube material when the tube material is supported by the cylindrical portion of the mandrel.
    Type: Application
    Filed: January 11, 2017
    Publication date: January 24, 2019
    Applicant: TOPY KOGYO KABUSHIKI KAISHA
    Inventors: Kenji YOSHII, Hiroyasu KATO, Tatsuro KAKAMI, Keitaro ENAMI, Yuji IWAKURA