Patents by Inventor Yuishin Tanaka

Yuishin Tanaka 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).

  • Actuator
    Patent number: 5563465
    Abstract: An actuator includes piezo electric devices which are installed in contact with a drive head and a driven body which is contact-driven by the drive head. Thus, only one mechanism performs coarse motion and micromotion by forming a gap between the drive head and driven body. The high precision positioning mechanism can be miniaturized and constructed at a low price.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: October 8, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Hitoshi Nakahara, Masakazu Ichikawa, Yuishin Tanaka, Sakae Saitou, Shigeo Moriyama