Patents by Inventor Saku Egawa

Saku Egawa 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).

  • Electrostatic actuator using films
    Patent number: 5239222
    Abstract: An electrostatic actuator using films providing a large force with a small and simple structure comprising a stator (1) providing a plurality of belt type electrodes wired in the insulation material, a migrator (10) placed on the stator (1) and composed of an insulation material layer film (11) and a resistance material layer film (12) and a means for floating, driving and positioning the migrator (10) by changing voltages to be applied to the belt type electrodes (4).
    Type: Grant
    Filed: October 2, 1990
    Date of Patent: August 24, 1993
    Assignees: Fujitsu Limited, Toshiro Higuchi
    Inventors: Toshiro Higuchi, Saku Egawa