Patents by Inventor Kitahara Tokio

Kitahara Tokio 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, method of driving actuator, computer-readable medium for storing program processed by computer for executing driving method, and compact machine tool utilizing actuator
    Patent number: 6032549
    Abstract: An actuator comprises a base, a guide assembly mounted on the base, a first displacing unit mounted on the base for displacement into engagement with the guide assembly to place the first displacing unit in a fixed state and for displacement in a moving direction along the guide assembly when the first displacing unit is not in a fixed state, and a second displacing unit integrally connected to the first displacing unit and mounted on the base for displacement in the moving direction along the guide assembly. A holder is mounted in contact with the guide assembly for movement with the second displacing unit and for supporting the second displacing unit on the guide assembly with a frictional force weaker than a force with which the first displacing unit is maintained in the fixed state to thereby allow the second displacing unit and the holder to move in the moving direction while the holder contacts the guide assembly and while the first displacing unit is in the fixed state.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: March 7, 2000
    Assignees: Agency of Industrial Science and Technology, Seiko Instruments Inc.
    Inventors: Kitahara Tokio, Yuichi Ishikawa, Kazuyoshi Furuta