Patents by Inventor Reona UMEI

Reona UMEI 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).

  • LINEAR MOTION ACTUATOR
    Publication number: 20230349453
    Abstract: A linear motion actuator has a ball screw device having a screw shaft, a nut, and a plurality of balls, a piston mounted on one end of the screw shaft, and a stroke limiting mechanism setting an operation starting point in time of the screw shaft toward a first direction pointed by the one end. The nut has one end face directed to the first direction and a protruding part protruding from the one end face.
    Type: Application
    Filed: October 20, 2021
    Publication date: November 2, 2023
    Applicant: NSK LTD.
    Inventors: Reona UMEI, Yasumi WATANABE, Yuji SHIMOMURA