Patents Examined by Henry K Cho
  • Patent number: 11456654
    Abstract: To achieve the foregoing object, a tubular linear motor of the present invention includes a core that has a tubular yoke and a plurality of teeth which are annular and provided at intervals in an axial direction on an outer periphery of the yoke; a winding mounted in a slot between the teeth; and a field magnet that is tubular, into which the core is movably inserted in the axial direction, and having N poles and S poles alternately arranged in the axial direction. An axial width Wi of a yoke-side inner peripheral edge of the teeth is larger than an axial width of an outer peripheral edge of the teeth.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: September 27, 2022
    Assignee: KYB CORPORATION
    Inventors: Yoshiaki Kano, Kousuke Satou, Shinichirou Hakamada, Daichi Shibahara