Patents by Inventor Jyunji Kishino

Jyunji Kishino 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).

  • Plastic working method and spinning machine used in the same
    Patent number: 9579831
    Abstract: A spinning machine includes: a main shaft which includes a chuck holding a cylindrical material having a bottom and a regulation member; a mandrel which is inserted inside from an opening side end portion of the material; and a press roller which presses the opening side end portion of the material. The spinning machine molds a circumferential groove portion on the opening side end portion so that an inner diameter of the opening side end portion of the material is smaller than an inner diameter of a body of the material by pushing a press roller while rotating the material around the axial center of the main shaft, and at least a portion of the inserted mandrel is formed so that a gap is provided between the portion and an inner circumferential surface after the opening side end portion of the material is plastically deformed.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: February 28, 2017
    Assignee: NIHON SPINDLE MANUFACTURING CO., LTD.
    Inventors: Yoshiaki Takada, Jyunji Kishino, Taishi Shirai
  • PLASTIC WORKING METHOD AND SPINNING MACHINE USED IN THE SAME
    Publication number: 20150239156
    Abstract: A spinning machine includes: a main shaft which includes a chuck holding a cylindrical material having a bottom and a regulation member; a mandrel which is inserted inside from an opening side end portion of the material; and a press roller which presses the opening side end portion of the material. The spinning machine molds a circumferential groove portion on the opening side end portion so that an inner diameter of the opening side end portion of the material is smaller than an inner diameter of a body of the material by pushing a press roller while rotating the material around the axial center of the main shaft, and at least a portion of the inserted mandrel is formed so that a gap is provided between the portion and an inner circumferential surface after the opening side end portion of the material is plastically deformed.
    Type: Application
    Filed: May 8, 2015
    Publication date: August 27, 2015
    Inventors: Yoshiaki Takada, Jyunji Kishino, Taishi Shirai