Patents by Inventor Chang Nho Cho

Chang Nho Cho 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).

  • Apparatus for controlling stiffness of output link in moving mechanism
    Patent number: 9902064
    Abstract: A stiffness control apparatus includes a base member, an output link configured to move along a plane parallel to a surface of the base member, and at least one stiffness control unit configured to control stiffness of the output link. The at least one stiffness control unit includes a shaft including a first end and a second end, the first end being rotatably coupled to the base member, a rotating member including an elongated hole into which the second end of the shaft is movably inserted, and rotatably arranged by the shaft at a position having contact with the output link on an outer side or an inner side the output link, and an elastic member between the second end of the shaft and at least one inner wall of the elongated hole in a longitudinal direction thereof.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: February 27, 2018
    Assignee: NATIONAL CANCER CENTER
    Inventors: Kwang Gi Kim, Hyun Chul Jung, Chang Nho Cho
  • APPARATUS FOR CONTROLLING STIFFNESS OF OUTPUT LINK IN MOVING MECHANISM
    Publication number: 20170129102
    Abstract: A stiffness control apparatus includes a base member, an output link configured to move along a plane parallel to a surface of the base member, and at least one stiffness control unit configured to control stiffness of the output link. The at least one stiffness control unit includes a shaft including a first end and a second end, the first end being rotatably coupled to the base member, a rotating member including an elongated hole into which the second end of the shaft is movably inserted, and rotatably arranged by the shaft at a position having contact with the output link on an outer side or an inner side the output link, and an elastic member between the second end of the shaft and at least one inner wall of the elongated hole in a longitudinal direction thereof.
    Type: Application
    Filed: January 24, 2017
    Publication date: May 11, 2017
    Applicant: NATIONAL CANCER CENTER
    Inventors: Kwang Gi KIM, Hyun Chul Jung, Chang Nho Cho