Patents Represented by Attorney Gallagher & Lsthrop

Find this attorney in the Justia Lawyer Directory

  • Memory defect remedy analyzing method and memory test instrument
    Patent number: 7054788
    Abstract: The invention relates to a hydraulic ratchet wrench with a double-action hydraulic cylinder piston drive with a gear pump (20) and a piston pump (21). According to the invention, a working stroke and a return stroke are controlled through a reversal of rotational direction of a pump motor (4), whereby the necessary flow volume is produced automatically via internal flow control valves, and without additional valve controls.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: May 30, 2006
    Assignee: Advantest Corporation
    Inventor: Masahiro Akutsu