Patents by Inventor Akihito Sekido

Akihito Sekido 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).

  • Method of an apparatus for determining working original point for multi-joint manipulator
    Patent number: 4811248
    Abstract: A method of and apparatus for determining a position of a working original point at which working characteristics of a multi-joint manipulator are at optimum. According to the method and apparatus, a working point at which a hand mounted on the multi-joint manipulator works and a workspace needed for the work are assigned. Subsequently, a set of positions of the working original point of the multi-joint manipulator at which the hand may reach the workspace is calculated. Also, values of evaluation functions representative of preference of the working characteristics of the multi-joint manipulator are calculated with respect to the respective positions of the set. Then, the values of the evaluation functions are compared with each other, thereby selecting the position of the working original point at which the working characteristics are at optimum.
    Type: Grant
    Filed: March 2, 1987
    Date of Patent: March 7, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Makoto Senoh, Fumio Tomizawa, Akihito Sekido, Masanori Suzuki, Sakae Sugiyama, Tomiharu Yoshida