Patents Assigned to O.P.O. Giken Kabushiki Kaisha
  • Plunger type solenoid
    Patent number: 4114125
    Abstract: An improved plunger type solenoid comprises a solenoid coil, a plunger to be attracted into the solenoid coil, a piston directly or indirectly connected to the plunger and a cylinder filled with oil for containing the piston. The piston is subject to the pressure of the oil, such that the speed of movement of the plunger is widely controlled.
    Type: Grant
    Filed: August 17, 1976
    Date of Patent: September 12, 1978
    Assignee: O.P.O. Giken Kabushiki Kaisha
    Inventor: Saburo Komatsu