Patents by Inventor Evert Nieuwkoop
Evert Nieuwkoop 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).
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Scanning probe microscopy system for and method of mapping nanostructures on the surface of a sample
Patent number: 11320454Abstract: The present document relates to a scanning probe microscopy system and method for mapping nanostructures on the surface of a sample. The system comprises a sample support structure, a scan head including a probe comprising a cantilever and a probe tip, and an actuator for scanning the probe tip relative to the sample surface. The system also includes an optical source, and a sensor unit for obtaining a sensor signal indicative of a position of the probe tip. The sensor unit includes a partially reflecting element for reflecting a reference fraction and for transmitting a sensing fraction of the optical signal. It further includes directional optics for directing the sensing fraction as an optical beam towards the probe tip, and for receiving a reflected fraction thereof to provide a sensed signal. Moreover the sensor includes an interferometer for providing one or more output signals, and signal conveyance optics for conveying the sensed signal and the reference signal to the interferometer.Type: GrantFiled: May 14, 2018Date of Patent: May 3, 2022Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNOInventors: Hamed Sadeghian Marnani, Aukje Arianne Annette Kastelijn, Peter Martijn Toet, Geerten Frans Ijsbrand Kramer, Evert Nieuwkoop, Albert Dekker, Martinus Cornelius Johannes Maria van Riel, Rik Kruidhof -
Patent number: 10761315Abstract: According to an aspect of the invention, there is provided a mirror structure for adaptive optics devices, characterized in that it comprises: an elastically deformable layer in response to an applied force, said deformable layer comprising a central portion reflective to said an incident light beam (F); a support substrate positioned spaced with respect to said deformable layer; a spacer element connected to said elastically deformable layer and support substrate and positioned there between, said spacer element being arranged so that the separation distance between said first and second inner surface is in the range between 2 and 100 micron; an inner chamber at least partially defined by said first and substrate and by said spacer element, said inner chamber containing a pressurized gas (G); an actuator system capable of causing a deformation of said central portion counteracting the pressure of said pressurized gas; wherein, in use, said central portion is deformed according to profiles such as to controlType: GrantFiled: December 16, 2016Date of Patent: September 1, 2020Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNOInventors: Erwin John van Zwet, Teunis Cornelis van den Dool, Evert Nieuwkoop
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SCANNING PROBE MICROSCOPY SYSTEM FOR AND METHOD OF MAPPING NANOSTRUCTURES ON THE SURFACE OF A SAMPLE
Publication number: 20200116754Abstract: The present document relates to a scanning probe microscopy system and method for mapping nanostructures on the surface of a sample. The system comprises a sample support structure, a scan head including a probe comprising a cantilever and a probe tip, and an actuator for scanning the probe tip relative to the sample surface. The system also includes an optical source, and a sensor unit for obtaining a sensor signal indicative of a position of the probe tip. The sensor unit includes a partially reflecting element for reflecting a reference fraction and for transmitting a sensing fraction of the optical signal. It further includes directional optics for directing the sensing fraction as an optical beam towards the probe tip, and for receiving a reflected fraction thereof to provide a sensed signal. Moreover the sensor includes an interferometer for providing one or more output signals, and signal conveyance optics for conveying the sensed signal and the reference signal to the interferometer.Type: ApplicationFiled: May 14, 2018Publication date: April 16, 2020Inventors: Hamed Sadeghian Marnani, Aukje Arianne Annette Kastelijn, Peter Martijn Toet, Geerten Frans Ijsbrand Kramer, Evert Nieuwkoop, Albert Dekker, Martinus Cornelius Johannes Maria van Riel, Rik Kruidhof -
Publication number: 20190004310Abstract: According to an aspect of the invention, there is provided a mirror structure for adaptive optics devices, characterized in that it comprises: an elastically deformable layer in response to an applied force, said deformable layer comprising a central portion reflective to said an incident light beam (F); a support substrate positioned spaced with respect to said deformable layer; a spacer element connected to said elastically deformable layer and support substrate and positioned there between, said spacer element being arranged so that the separation distance between said first and second inner surface is in the range between 2 and 100 micron; an inner chamber at least partially defined by said first and substrate and by said spacer element, said inner chamber containing a pressurized gas (G); an actuator system capable of causing a deformation of said central portion counteracting the pressure of said pressurized gas; wherein, in use, said central portion is deformed according to profiles such as to controlType: ApplicationFiled: December 16, 2016Publication date: January 3, 2019Inventors: Erwin John VAN ZWET, Teunis Cornelis VAN DEN DOOL, Evert NIEUWKOOP
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Patent number: 10014165Abstract: A radiation sensor device is disclosed for use with a radiation source, capable of emitting radiation with photon energies larger than the work function of the target comprising a target plate to be impacted by the radiation to generate photo-electrons, the target plate being electrically isolated from a shielding electrode. The shielding electrode is arranged to collect energy-filtered photo-electrons from the target plate, using an electrostatic barrier for the filtering. The target plate is constructed of a carbon material. A current measurement device is operative to keep the target plate at a preset voltage difference with respect to the shielding electrode and measure a photo-electron deficit current as a result of radiation impact on the target plate.Type: GrantFiled: May 20, 2015Date of Patent: July 3, 2018Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNOInventors: Diederik Jan Maas, Evert Nieuwkoop, Erwin John van Zwet, Michel van Putten, Norbertus Benedictus Koster
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Publication number: 20170092474Abstract: A radiation sensor device is disclosed for use with a radiation source, capable of emitting radiation with photon energies larger than the work function of the target comprising a target plate to be impacted by the radiation to generate photo-electrons, the target plate being electrically isolated from a shielding electrode. The shielding electrode is arranged to collect energy-filtered photo-electrons from the target plate, using an electrostatic barrier for the filtering. The target plate is constructed of a carbon material. A current measurement device is operative to keep the target plate at a preset voltage difference with respect to the shielding electrode and measure a photo-electron deficit current as a result of radiation impact on the target plate.Type: ApplicationFiled: May 20, 2015Publication date: March 30, 2017Inventors: Diederik Jan Maas, Evert Nieuwkoop, Erwin John van Zwet, Michel van Putten, Norbertus Benedictus Koster
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Patent number: 9176398Abstract: A method for thermally conditioning an optical element includes irradiating the optical element with radiation, not-irradiating the optical element with the radiation, allowing heat flow between the optical element and a conditioning fluid that is held in a conditioning fluid reservoir, and providing a fluid flow of the conditioning fluid, to supply thermally conditioned fluid to the reservoir. A flow rate of the fluid during the irradiating of the optical element is lower than a flow rate of the fluid when the optical element is not-irradiated.Type: GrantFiled: May 20, 2009Date of Patent: November 3, 2015Assignee: ASML NETHERLANDS B.V.Inventors: Roger Wilhelmus Antonius Henricus Schmitz, Tjarko Adriaan Rudolf Van Empel, Marcel Johannus Elisabeth Hubertus Muitjens, Lun Cheng, Franciscus Johannes Joseph Janssen, Willem Arie Van Helden, Richard Versluis, Paulus Bartholomeus Johannes Schaareman, Axel Sebastiaan Lexmond, Evert Nieuwkoop, Charles William Barras Potts, Martinus Henricus Johannes Lemmen, Frederik Van Der Graaf, Mathilde Gertrudis Maria De Kroon, Johannes Fransiscus Maria Velthuis
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Patent number: 8189173Abstract: Apparatus and methods are used to control a polarization state of a radiation beam. A polarization control unit is configured to modulate a polarization state of at least a part of a radiation beam. A determination arrangement is configured to subsequently determine the polarization state of the at least a part of the radiation beam. A feedback unit is configured to provide signals to the polarization control arrangement based on at least the determined polarization state in order to correct for deviation in the polarization state of the part of the radiation beam from a desired polarization state. For example, the correction may ensure that the polarization state of the part of the radiation beam is at, or returns to, the desired polarization state.Type: GrantFiled: January 12, 2009Date of Patent: May 29, 2012Assignee: ASML Netherlands B.V.Inventors: Marcel Henk André Janssens, Oscar Franciscus Jozephus Noordman, Huibert Visser, Evert Nieuwkoop
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Publication number: 20110310368Abstract: A method for thermally conditioning an optical element includes irradiating the optical element with radiation, not-irradiating the optical element with the radiation, allowing heat flow between the optical element and a conditioning fluid that is held in a conditioning fluid reservoir, and providing a fluid flow of the conditioning fluid, to supply thermally conditioned fluid to the reservoir. A flow rate of the fluid during the irradiating of the optical element is lower than a flow rate of the fluid when the optical element is not-irradiated.Type: ApplicationFiled: May 20, 2009Publication date: December 22, 2011Applicant: ASML Netherlands B.V.Inventors: Roger Wilhelmus Antonius Henricus Schmitz, Tjarko Adriaan Rudolf Van Empel, Marcel Johannus Elisabeth Hubertus Muitjens, Lun Cheng, Franciscus Johannes Joseph Janssen, William Arie Van Helden, Richard Versluis, Paulus Bartholomeus Johannes Schaareman, Axel Sebastiaan Lexmond, Evert Nieuwkoop, Charles William Barras Potts, Martinus Henricus Johannes Lemmen, Frederik Van Der Graaf, Mathilde Gertrudis Maria De Kroon, Johannes Fransiscus Maria Velthuis
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Publication number: 20090221897Abstract: Sensor (1) for measuring electrical variables at the surface of a human or animal body, comprising three of more electrodes (2) in a geometrically regular arrangement, the sensor, moreover, comprising a support member (4), arranged to keep the electrodes together. The sensor may e.g. comprise a regular tripole (A, B, C) or quadrupole electrode configuration. The support member may have a rigid or a flexible constitution. The sensor may contain additional means (9) to detect orientation or position of the sensor w.r.t. the body, as well as means for energy scavenging.Type: ApplicationFiled: December 22, 2006Publication date: September 3, 2009Applicant: Nederlandse Organisatie Voor Toegepast- Natuurwetenschappelijke Onderzoek TNOInventor: Evert Nieuwkoop
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Publication number: 20090201483Abstract: Apparatus and methods are used to control a polarization state of a radiation beam. A polarization control unit is configured to modulate a polarization state of at least a part of a radiation beam. A determination arrangement is configured to subsequently determine the polarization state of the at least a part of the radiation beam. A feedback unit is configured to provide signals to the polarization control arrangement based on at least the determined polarization state in order to correct for deviation in the polarization state of the part of the radiation beam from a desired polarization state. For example, the correction may ensure that the polarization state of the part of the radiation beam is at, or returns to, the desired polarization state.Type: ApplicationFiled: January 12, 2009Publication date: August 13, 2009Applicant: ASML Netherlands B.V.Inventors: Marcel Henk Andre JANSSENS, Oscar Franciscus Jozephus NOORDMAN, Huibert VISSER, Evert NIEUWKOOP
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Publication number: 20080087309Abstract: A device is provided for monitoring a wash process inside a mechanical washing apparatus, comprising sensor means for measuring physical and/or mechanical parameters of the wash process and recording means for recording the measured parameters within the device. This device comprises means for conducting a washing liquor past the sensor means and means for determining a certain contact time between the washing liquor and the sensor means.Type: ApplicationFiled: December 10, 2007Publication date: April 17, 2008Applicant: JOHNSONDIVERSEY, INC.Inventors: Antonius Aulbers, Leonard Flendrig, Evert Nieuwkoop, Hank Reinhoudt, Alexandru Volanschi, Johannes Van Der Werff
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Patent number: 7322370Abstract: A device is provided for monitoring a wash process inside a mechanical washing apparatus, comprising sensor means for measuring physical and/or mechanical parameters of the wash process and recording means for recording the measured parameters within the device. This device comprises means for conducting a washing liquor past the sensor means and means for determining a certain contact time between the washing liquor and the sensor means.Type: GrantFiled: September 29, 2006Date of Patent: January 29, 2008Assignee: JohnsonDiversey, Inc.Inventors: Antonius Paulus Aulbers, Leonard Marcus Flendrig, Evert Nieuwkoop, Hank Robert Reinhoudt, Alexandru Volanschi, Johannes Jeichienus Van Der Werff
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Publication number: 20070023071Abstract: A device is provided for monitoring a wash process inside a mechanical washing apparatus, comprising sensor means for measuring physical and/or mechanical parameters of the wash process and recording means for recording the measured parameters within the device. This device comprises means for conducting a washing liquor past the sensor means and means for determining a certain contact time between the washing liquor and the sensor means.Type: ApplicationFiled: September 29, 2006Publication date: February 1, 2007Inventors: Antonius Aulbers, Leonard Flendrig, Evert Nieuwkoop, Hank Reinhoudt, Alexandru Volanschi, Johannes Van Der Werff
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Patent number: 7150284Abstract: A device is provided for monitoring a wash process inside a mechanical washing apparatus, comprising sensor means for measuring physical and/or mechanical parameters of the wash process and recording means for recording the measured parameters within the device. This device comprises means for conducting a washing liquor past the sensor means and means for determining a certain contact time between the washing liquor and the sensor means.Type: GrantFiled: December 11, 2001Date of Patent: December 19, 2006Assignee: JohnsonDiversey, Inc.Inventors: Anton Aulbers, Leonard Marcus Flendrig, Evert Nieuwkoop, Hank Robert Reinhoudt, Alexandru Volanschi, Johannes Van Der Werff
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Publication number: 20020078979Abstract: A device is provided for monitoring a wash process inside a mechanical washing apparatus, comprising sensor means for measuring physical and/or mechanical parameters of the wash process and recording means for recording the measured parameters within the device. This device comprises means for conducting a washing liquor past the sensor means and means for determining a certain contact time between the washing liquor and the sensor means.Type: ApplicationFiled: December 11, 2001Publication date: June 27, 2002Applicant: Diversey Lever, Inc.Inventors: Antonius Paulus Aulbers, Leonard Marcus Flendrig, Evert Nieuwkoop, Hank Robert Reinhoudt, Alexandru Volanschi, Johnnes Jeichienus Van Der Werff
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Patent number: 5195341Abstract: An electronic lock is constructed to resemble the appearance and functionality of a conventional cylinder lock. Its key has a bit in which is mounted an integrated circuit chip storing the key code and including a transmission coil for inductive coupling with a reading head in the lock. The latter includes a coil for generating a high frequency alternating magnetic field across a localized region of the keyway concentrated via a toroidal ferrite core structure which defines a gap spanning the keyway through which the chip passes when the key bit is inserted. This core structure includes a U-shaped part in the stationary lock housing around which the coil is wound, and two parts mounted in the barrel, one to either side of the keyway, which register with the part in the housing when the barrel is in the key-reading position. Further ferrite pads may be mounted to either side of the coil in the key itself, to register with the ferrite parts in the barrel.Type: GrantFiled: December 20, 1991Date of Patent: March 23, 1993Assignee: Chubb Lips Nederland bvInventor: Evert Nieuwkoop
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Patent number: 5005393Abstract: A lock which is adapted to transduce the code from a key by electronic means is constructed to resemble the form and functionality of a conventional mechanical cylinder lock. A main casing houses the bolt, a rotatable thrower or cam for retracting the bolt, an electromechanical release mechanism which normally blocks rotation of the thrower, and a processor to control the release mechanism in response to the detected key code. The electronic reading means are located in association with the keyway of a rotatable barrel in a cylinder unit manufactured as a separate unit from the main casing. The thrower and barrel have respective cooperating mechanical couplings and the main casing and cylinder unit have respective cooperating electrical connectors. The lock is therefore assembled by attaching the cylinder unit to the outside of the main casing, thus establishing a rotary driving connection from the barrel to the thrower and establishing an electrical connection from the key reader to the processor.Type: GrantFiled: April 10, 1990Date of Patent: April 9, 1991Assignee: Chubb Lips Nederland bvInventors: Johannes M. Ewalds, Johan C. Hordijk, Evert Nieuwkoop
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Patent number: 4864292Abstract: An identification system, consisting of at least one stationary element and at least one movable element or token, the first element having a first induction coil adapted to generate a magnetic alternating field and being connected to a source of alternating current, and to a detector for detecting variations of the electromagnetic field, the detector being adapted to compare the detected patterns, the second element having a second induction coil adapted to pick up the field of the first coil and being connected to a rectifier circuit adapted to rectify the induction voltage of the second coil, a capacitive storage device being provided for smoothing the rectified voltage, a control circuit being fed by the rectified voltage and receiving, at an input terminal, the ac voltage induced in the second coil, the control circuit having an encoding deive adapted to produce, at an output terminal, code signals identifying the second element, these code signals being used for actuating a switch which, in one conditioType: GrantFiled: June 28, 1988Date of Patent: September 5, 1989Assignee: Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNOInventor: Evert Nieuwkoop