Patents Assigned to Hideo Hoshi
  • Multi-stage hydraulic actuator
    Patent number: 5247872
    Abstract: A multi-stage hydraulic actuator including a cylinder body having an outer cylinder and an inner cylinder provided in the outer cylinder, first and second pistons inserted in the outer cylinder to independently move and provided with first and second working members, and third and fourth pistons inserted in the inner cylinder to independently move and provided with third and fourth working members.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: September 28, 1993
    Assignees: Hideo Hoshi, Mannesmann Rexroth GmbH
    Inventor: Hideo Hoshi