Patents by Inventor Hideki Ohura

Hideki Ohura 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).

  • Step linear actuator
    Patent number: 5091710
    Abstract: A step linear actuator includes a stationary member of a magnetic material, a pair of moving units each being in contact with the stationary member and having a magnetic coupling element for magnetically generating a contact force to the stationary member and an opposing face opposing to the opposing face of the other moving unit through a gap therebetween, and a magnetic driver for generating magnetic forces to control the contract force between each moving unit and the stationary member and to cause a relative movement of the pair of moving units with respect to each other.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: February 25, 1992
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Souji Ohba, Ryota Shimizu, Hideki Ohura