Patents by Inventor Tomomi KAWASUMI

Tomomi KAWASUMI 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).

  • GEAR SPINDLE DEVICE FOR ROLLING MILL, ROLLING MILL FACILITY, AND METHOD OF COOLING GEAR SPINDLE DEVICE FOR ROLLING MILL
    Publication number: 20230390816
    Abstract: A gear spindle device for a rolling mill includes: a spindle outer cylinder having, at a first end side, an inner circumferential surface provided with an inner circumferential gear; a spindle inner cylinder having an outer circumferential surface provided with an outer circumferential gear which engages with the inner circumferential gear; a seal member disposed between the spindle outer cylinder and the spindle inner cylinder, for holding a lubricant oil at an engagement portion between the inner circumferential gear and the outer circumferential gear; and a coolant supply unit disposed at an opposite side to the seal member across the engagement portion in an axial direction of the spindle outer cylinder, for supplying a coolant toward the spindle outer cylinder in a formation region of the engagement portion where the engagement portion is formed.
    Type: Application
    Filed: November 17, 2020
    Publication date: December 7, 2023
    Applicant: PRIMETALS TECHNOLOGIES JAPAN, LTD.
    Inventors: Ryota KONO, Tomomi KAWASUMI