Patents by Inventor Willem Jacob Vis

Willem Jacob Vis 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).

  • Current measurement system
    Patent number: 9644995
    Abstract: A measurement system for measuring an input electrical current (Ics) from a current source (CS) and generating a current measurement signal, comprising a current measuring circuit (70) having a first input terminal (72) connected to the current source and an output terminal (74) for providing the current measurement signal. The current measuring circuit further comprises one or more power supply terminals (75, 76) arranged to receive one or more voltages from a power supply (77a, 77b) for powering the current measuring circuit. The current measuring circuit also comprises a first voltage source (VD) coupled to the one or more power supply terminals, the first voltage source providing a disturbance voltage to the one or more power supply terminals, the disturbance voltage representing a voltage at the first input terminal.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: May 9, 2017
    Assignee: MAPPER LITHOGRAPHY IP B.V.
    Inventors: Cor Verburg, Robert Mossel, Kaustubh Prabodh Padhye, Eric de Kok, Willem Jacob Vis
  • Active shield for capacitive measurement system
    Patent number: 9400195
    Abstract: A capacitive measurement system for generating a measurement signal representative of a measured position or distance to a target.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: July 26, 2016
    Assignee: MAPPER LITHOGRAPHY IP B.V.
    Inventors: Cor Verburg, Robert Mossel, Kaustubh Prabodh Padhye, Eric de Kok, Willem Jacob Vis
  • Current measurement system
    Patent number: RE48901
    Abstract: A measurement system for measuring an input electrical current (Ics) from a current source (CS) and generating a current measurement signal, comprising a current measuring circuit (70) having a first input terminal (72) connected to the current source and an output terminal (74) for providing the current measurement signal. The current measuring circuit further comprises one or more power supply terminals (75, 76) arranged to receive one or more voltages from a power supply (77a, 77b) for powering the current measuring circuit. The current measuring circuit also comprises a first voltage source (VD) coupled to the one or more power supply terminals, the first voltage source providing a disturbance voltage to the one or more power supply terminals, the disturbance voltage representing a voltage at the first input terminal.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: January 25, 2022
    Assignee: ASML Netherlands B.V.
    Inventors: Cor Verburg, Robert Mossel, Kaustubh Prabodh Padhye, Eric de Kok, Willem Jacob Vis