Patents by Inventor Gerardus Jacobus Cornelis Catharina Maria Leenheers

Gerardus Jacobus Cornelis Catharina Maria Leenheers 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).

  • System and method for moving an object employing piezo actuators
    Patent number: 7173363
    Abstract: A piezo actuator system, is presented herein. A piezo actuator system comprises a number of piezo actuators which may lengthen and shear. Using the lengthening and shearing, the piezo actuator system grips and moves an object in response to a first and a second control signal, respectively. The possible displacement of the object is limited by the maximum shear of the piezo actuators. To increase the possible displacement, the piezo actuators may be controlled to perform a linear shear sequence or a shuffle sequence. During the linear shear sequence, the object is moved; during the shuffle sequence the object is substantially stationary, while the piezo actuators are repositioned with respect to the object, after which the object may be moved further using the linear shear sequence.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: February 6, 2007
    Assignee: ASML Netherlands B.V.
    Inventors: Stefan Gertud Marie Hendriks, Thomas Augustus Mattaar, Gerardus Jacobus Cornelis Catharina Maria Leenheers
  • System and method for moving an object employing piezo actuators
    Patent number: 6977461
    Abstract: A piezo actuator system, is presented herein. A piezo actuator system comprises a number of piezo actuators which may lengthen and shear. Using the lengthening and shearing, the piezo actuator system grips and moves an object in response to a first and a second control signal, respectively. The possible displacement of the object is limited by the maximum shear of the piezo actuators. To increase the possible displacement, the piezo actuators may be controlled to perform a linear shear sequence or a shuffle sequence. During the linear shear sequence, the object is moved; during the shuffle sequence the object is substantially stationary, while the piezo actuators are repositioned with respect to the object, after which the object may be moved further using the linear shear sequence.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: December 20, 2005
    Assignee: ASML Netherlands B.V.
    Inventors: Stefan Gertrud Marie Hendriks, Thomas Augustus Mattaar, Gerardus Jacobus Cornelis Catharina Maria Leenheers