Patents Assigned to Kabushiki Kaisha Tokiwa Seisakusho
  • Ball shooting machine for volleyball practice
    Patent number: 4323048
    Abstract: A ball shooting machine for volleyball practice has a pair of tire-wheel type ball shooting mechanisms supported by members comprising an intermediate rod, a pillar and legs. Mechanisms for varying the shooting angle, direction, height and course of the ball are provided at each joint of the supporting members respectively. Balls are charged in a member mounted at such a specific angle as to make it possible to charge the ball smoothly irrespective of the inclination or position of the ball shooting machine.
    Type: Grant
    Filed: August 26, 1980
    Date of Patent: April 6, 1982
    Assignee: Kabushiki Kaisha Tokiwa Seisakusho
    Inventors: Retsuo Saito, Junji Nagase
  • Serving machine for use in practicing volleyball
    Patent number: D260024
    Type: Grant
    Filed: May 30, 1979
    Date of Patent: July 28, 1981
    Assignee: Kabushiki Kaisha Tokiwa Seisakusho
    Inventors: Retsuo Saito, Junji Nagase