Patents by Inventor Yugo KASHIWABARA

Yugo KASHIWABARA 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).

  • SCREW FOR INJECTION MOLDING MACHINE, INJECTION DEVICE, AND INJECTION MOLDING MACHINE
    Publication number: 20220111571
    Abstract: A stepped flight is formed on a screw of an injection molding machine. The stepped flight is a flight in which a step-shaped step portion is formed on a top portion thereof. The top portion of the flight includes a large diameter portion on an upstream side and a land portion on a downstream side. When a gap ratio m of a gap H1 between the land portion and a bore of the heating cylinder to a gap H2 between the large diameter portion and the bore is defined as H1/H2, the gap ratio m is selected to be 2.3?m?6.4.
    Type: Application
    Filed: October 12, 2021
    Publication date: April 14, 2022
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Yugo KASHIWABARA, Takuya YUFU, Kazuma NAKAGAWA