Patents by Inventor Tsubasa ASAKA

Tsubasa ASAKA 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).

  • Shielding apparatus
    Patent number: 10294719
    Abstract: A shielding device for opening and closing a shielding member by rotation of a winding shaft, the shielding device including a speed controller configured to control an automatic movement speed of the shielding member, wherein the speed controller includes: a housing containing a viscous fluid; and a moving member contained in the housing and configured to move by rotation of the winding shaft, and the speed controller is configured so that resistance the moving member receives from the viscous fluid varies with movement of the moving member, is provided.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: May 21, 2019
    Assignee: TACHIKAWA CORPORATION
    Inventors: Kazuto Yamagishi, Masaya Yamaguchi, Tsubasa Asaka, Takenobu Ebato
  • SHIELDING DEVICE
    Publication number: 20170298691
    Abstract: A shielding device for opening and closing a shielding member by rotation of a winding shaft, the shielding device including a speed controller configured to control an automatic movement speed of the shielding member, wherein the speed controller includes: a housing containing a viscous fluid; and a moving member contained in the housing and configured to move by rotation of the winding shaft, and the speed controller is configured so that resistance the moving member receives from the viscous fluid varies with movement of the moving member, is provided.
    Type: Application
    Filed: July 6, 2015
    Publication date: October 19, 2017
    Applicant: TACHIKAWA CORPORATION
    Inventors: Kazuto YAMAGISHI, Masaya YAMAGUCHI, Tsubasa ASAKA, Takenobu EBATO