Patents by Inventor Peter Christiaans

Peter Christiaans 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).

  • Patent number: 11450505
    Abstract: An adjustable magnetic field free objective lens for a charged particle microscope is disclosed herein. An example charged particle microscope at least includes first and second optical elements arranged on opposing sides of a sample plane, a third optical element arranged around the sample plane, and a controller coupled to control the first, second and third optical elements. The controller coupled to excite the first and second optical elements to generate first and second magnetic lenses, the first and second magnetic lenses formed on opposing sides of the sample plane and oriented in the same direction, and excite the third optical element to generate a third magnetic lens at the sample plane that is oriented in an opposite direction, where a ratio of the excitation of the third optical element to the excitation of the first and second optical elements adjusts a magnetic field at the sample plane.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: September 20, 2022
    Assignee: FEI Company
    Inventors: Alexander Henstra, Ali Mohammadi-Gheidari, Peter Christiaan Tiemeijer
  • Publication number: 20220274826
    Abstract: A micro-electromechanical transducer including one or more moveable members, and a viscoelastic substance having a predetermined viscoelasticity, the viscoelastic substance being adapted to influence the response of the transducer in a predetermined manner. The micro-electromechanical transducer of the present invention may include a MEMS transducer, such as a MEMS microphone, a MEMS vibration sensor, a MEMS acceleration sensor, a MEMS receiver.
    Type: Application
    Filed: May 20, 2022
    Publication date: September 1, 2022
    Inventors: Raymond Mogelin, Dion Ivo de Roo, Frederik Cornelis Blom, Alwin Fransen, Pavlo Mulyar, Peter Christiaan Post
  • Patent number: 11414925
    Abstract: A flexible sunscreen is provided intended for use in a sunshade assembly of the type comprising a flexible sunscreen having a central part and two opposed inwardly folded longitudinal edge flaps connected to the central part by means of folding lines, and two opposed longitudinal guides for receiving therein and guiding corresponding ones of the inwardly folded longitudinal edge flaps of the flexible sunscreen, which guides are provided with locking members for engaging an outer end of the inwardly folded longitudinal edge flaps for preventing these edge flaps from moving out of the longitudinal guides. The central part of the flexible sunscreen mainly is manufactured from a first material with a first stiffness wherein of the inwardly folded longitudinal edge flaps and of the parts of the central part adjacent the edge flaps at least part is made of a second material with a second higher stiffness.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: August 16, 2022
    Assignee: INALFA ROOF SYSTEMS GROUP B.V.
    Inventors: Paulus Johannes Wilhelmus Munsters, Dave Keller, Martinus Wilhelmus Maria Nabuurs, Peter Christiaan Leonardus Johannes Manders, Robert Rikkert
  • Patent number: 11390148
    Abstract: A rollo assembly for use in a vehicle with an opening, includes a shaft, a screen wound on/off said shaft where a forward end is provided with a beam and opposite channels guide edges of the screen and ends of the beam. Drive cables are provided with connecting members for drivingly engaging respective counter connecting members provided at ends of the beam. The shaft, beam and screen are combined into a detachable unit which, when the screen is substantially fully wound onto the shaft and the cables assume a position in which the connecting members at least partially protrude from a longitudinal end of the channels, can be moved relative to said channels for connecting or disconnecting the counter connecting members to or from the connecting members. A support maintains the connecting members of the cables, when maximally protruding from said longitudinal end of the channels, in a well-defined position.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: July 19, 2022
    Assignee: Inalfa Roof Systems Group B.V.
    Inventors: Eduardus Christianus Henricus Van Boxtel, Jur Johannes Maria Custers, Peter Christiaan Leonardus Johannes Manders, Marcel Johan Christiaan Nellen
  • Publication number: 20220199353
    Abstract: An adjustable magnetic field free objective lens for a charged particle microscope is disclosed herein. An example charged particle microscope at least includes first and second optical elements arranged on opposing sides of a sample plane, a third optical element arranged around the sample plane, and a controller coupled to control the first, second and third optical elements. The controller coupled to excite the first and second optical elements to generate first and second magnetic lenses, the first and second magnetic lenses formed on opposing sides of the sample plane and oriented in the same direction, and excite the third optical element to generate a third magnetic lens at the sample plane that is oriented in an opposite direction, where a ratio of the excitation of the third optical element to the excitation of the first and second optical elements adjusts a magnetic field at the sample plane.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 23, 2022
    Applicant: FEI Company
    Inventors: Alexander Henstra, Ali Mohammadi-Gheidari, Peter Christiaan Tiemeijer
  • Publication number: 20220196526
    Abstract: The present invention is in the field of a non-contact system for monitoring a metallic magnetic structure under dynamic load for detecting an impact induced propagating stress wave, and a method of determining strain in a metallic magnetic structure under dynamic load, such as a tube-like structure, such as a monopile for a wind turbine.
    Type: Application
    Filed: June 5, 2020
    Publication date: June 23, 2022
    Applicant: TECHNISCHE UNIVERSITEIT DELFT
    Inventors: Peter Christiaan MEIJERS, Apostolus TSOUVALAS, Andrey Vladimirovich METRIKINE
  • Patent number: 11358859
    Abstract: A micro-electromechanical transducer including one or more moveable members, and a viscoelastic substance having a predetermined viscoelasticity, the viscoelastic substance being adapted to influence the response of the transducer in a predetermined manner. The micro-electromechanical transducer of the present invention may include a MEMS transducer, such as a MEMS microphone, a MEMS vibration sensor, a MEMS acceleration sensor, a MEMS receiver.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: June 14, 2022
    Assignee: Sonion Nederland B.V.
    Inventors: Raymond Mögelin, Dion Ivo de Roo, Frederik Comelis Blom, Alwin Fransen, Pavlo Mulyar, Peter Christiaan Post
  • Publication number: 20220182753
    Abstract: The present invention relates to a vibration sensor comprising a pressure generating element for generating pressure differences between a first and a second volume in response to vibrations of the vibration sensor, the first and second volumes being acoustically sealed from each other, and a pressure transducer for measuring pressure differences between the first and second volumes. The present invention also relates to an associated method for detecting vibrations.
    Type: Application
    Filed: February 23, 2022
    Publication date: June 9, 2022
    Inventors: Peter Christiaan Post, Raymond Mögelin
  • Publication number: 20220168700
    Abstract: A device for processing a flow of particulate material by contact with a gas flow includes a housing defining a processing chamber. This chamber includes a gas distribution plate having openings. The gas distribution plate separates a lower gas plenum from a solid-gas contact zone. The contact zone has at least one cylindrical partition upstanding from the gas distribution plate dividing an inner section from an adjacent annular outer section. The at least one partition is provided with a transfer opening for the particulate material. The housing is also provided with an inlet for supplying particulate material to the inner section and an outlet for discharging processed particulate material from the annular outer section.
    Type: Application
    Filed: March 17, 2020
    Publication date: June 2, 2022
    Inventors: Peter Christiaan Albert Bergman, Evert-Jan Oltvoort, Robert Johan Boers
  • Patent number: 11350208
    Abstract: The present invention relates to a vibration sensor comprising a pressure generating element for generating pressure differences between a first and a second volume in response to vibrations of the vibration sensor, the first and second volumes being acoustically sealed from each other, and a pressure transducer for measuring pressure differences between the first and second volumes. The present invention also relates to an associated method for detecting vibrations.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: May 31, 2022
    Assignee: Sonion Nederland B.V.
    Inventors: Peter Christiaan Post, Raymond Mögelin
  • Publication number: 20220148849
    Abstract: The disclosure relates to a method of determining an energy width of a charged particle beam, comprising the steps of providing a charged particle beam, directing said beam towards a specimen, and forming an energy-dispersed beam from a flux of charged particles transmitted through the specimen. As defined herein, the method comprises the steps of providing a slit element in a slit plane, and using said slit element for blocking a part of said energy-dispersed beam, as well as the step of modifying said energy-dispersed beam at the location of said slit plane in such a way that said energy dispersed beam is partially blocked at said slit element. The unblocked part of said energy-dispersed beam is imaged and an intensity gradient of said imaged energy-dispersed beam is determined, with which the energy width of the charged particle beam can be determined.
    Type: Application
    Filed: November 10, 2021
    Publication date: May 12, 2022
    Applicant: FEI Company
    Inventor: Peter Christiaan Tiemeijer
  • Publication number: 20220127135
    Abstract: The present invention relates to a micro-electromechanical transducer comprising a pressure detection arrangement and a sub-assembly adapted to cooperate with the pressure detection arrangement via a coupling volume, said sub-assembly comprising one or more moveable masses, a suspension member suspending a number of moveable masses, wherein the coupling volume is at least partly defined by the suspension member, and wherein the coupling volume is acoustically connected to an interior volume of the pressure detection arrangement, and wherein the suspension member comprises a viscoelastic material with a predetermined viscous and sealant behaviour in order to dampen one or more resonance peaks of the micro-electromechanical transducer and acoustically seal the coupling volume. The present invention further relates to a hearing device comprising such a micro-electromechanical transducer.
    Type: Application
    Filed: October 28, 2021
    Publication date: April 28, 2022
    Applicant: Sonion Nederland B.V.
    Inventors: Raymond MOGELIN, Peter Christiaan POST
  • Patent number: 11296499
    Abstract: Embodiments of a method, a circuit and a system are disclosed. In an embodiment, a discharge protection circuit is disclosed. The discharge protection circuit includes a switch having a capacitive coupling between a gate and a drain of the switch, wherein the capacitive coupling facilitates a capacitively coupled current. The discharge protection circuit further includes a gate network including at least the gate of the switch, a gate control element and a resistor connected to the gate and the gate control element. In addition, the discharge protection circuit includes an electrostatic discharge rail that connects to a diode that is coupled to the gate and the resistor, wherein the capacitive coupling facilitates sinking of at least a part of an electrostatic discharge current via the gate network.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: April 5, 2022
    Assignee: NXP B.V.
    Inventors: Siamak Delshadpour, Guido Wouter Willem Quax, Peter Christiaans
  • Publication number: 20210305013
    Abstract: The invention relates to a transmission charged particle microscope comprising a charged particle beam source for emitting a charged particle beam, a sample holder for holding a sample, an illuminator for directing the charged particle beam emitted from the charged particle beam source onto the sample, and a control unit for controlling operations of the transmission charged particle microscope. As defined herein, the transmission charged particle microscope is arranged for operating in at least two modes that substantially yield a first magnification whilst keeping said diffraction pattern substantially in focus. Said at least two modes comprise a first mode having first settings of a final projector lens of a projecting system; and a second mode having second settings of said final projector lens.
    Type: Application
    Filed: March 26, 2021
    Publication date: September 30, 2021
    Applicant: FEI Company
    Inventor: Peter Christiaan Tiemeijer
  • Patent number: 11114271
    Abstract: Correctors for correcting axial aberrations of a particle-optical lens in a charged particle microscope system, according to the present disclosure include a first primary multipole that generates a first primary multipole field when a first excitation is applied to the first primary multipole, and a second primary multipole that generates a second primary multipole field when a second excitation is applied to the second primary multipole. The first primary multipole is not imaged onto the second primary multipole such that a combination fourth-order aberration is created. The correctors further include a secondary multipole for correcting the fourth-order aberration and the sixth-order aberration. Such correctors may further include a tertiary multipole for correcting an eighth-order aberration.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: September 7, 2021
    Assignee: FEI Company
    Inventors: Alexander Henstra, Peter Christiaan Tiemeijer, Marcel Niestadt
  • Publication number: 20210272767
    Abstract: The invention relates to a method for electron microscopy. The method comprises providing an electron microscope, generating an electron beam and an image beam, adjusting one of the beam and of the beam and the image beam to reduce off-axial aberrations and correcting a diffraction pattern of the resulting modified beam. The invention also relates to a method for reducing throughput time in a sample image acquisition session in transmission electron microscopy. The method comprises providing an electron microscope, generating a beam and an image beam, adjusting one of the two to reduce off-axial aberrations and filtering the resulting modified image beam. The invention further relates to an electron microscope and to a non-transient computer-readable medium with a computer program for carrying out the methods.
    Type: Application
    Filed: December 20, 2018
    Publication date: September 2, 2021
    Applicant: FEI Company
    Inventors: Maarten BISCHOFF, Peter Christiaan TIEMEIJER, Tjerk Gerrit SPANJER, Stan Johan Pieter KONINGS
  • Publication number: 20210214107
    Abstract: A coupling unit is disclosed for detachable coupling two pars of a spacecraft, the coupling unit connecting the two parts of the spacecraft in a connected condition and the coupling unit distancing the two parts of the spacecraft, when the coupling unit is in detached condition. The coupling unit comprises a first element and a second element engaged to each other in connected condition, with the second element comprising a gas generator for generating gas under pressure to detach the first and the second element to bring them in the detached position, thereby distancing the first element and the second element from each other, and thus also the first part and the second part connected to the respective elements.
    Type: Application
    Filed: January 15, 2020
    Publication date: July 15, 2021
    Applicant: Aerospace Propulsion Products B.V.
    Inventors: Peter Christiaan BRUINS, Antonius Marinus Christoffel MATTHIJSEN
  • Publication number: 20210168539
    Abstract: A hearing aid module includes an elongated housing, an optical sensor module within the housing, an audio driver positioned within the housing adjacent the optical sensor module, and first and second light guides positioned near the audio driver. The module has a rectangular configuration with opposite first and second sides, opposite third and fourth sides, and opposite first and second ends. The first and second sides each include an opening. An ear tip is coupled to the housing first end and is configured to retain the module within the auditory canal. The first light guide guides light from an optical emitter through the opening in the housing first side and into skin of the auditory canal in a non-line of sight manner. The second light guide collects light from the skin of the auditory canal and directs the collected light to an optical detector in a non-line of sight manner.
    Type: Application
    Filed: September 16, 2019
    Publication date: June 3, 2021
    Inventors: Shawn M. STEPHENSON, Aart Zeger VAN HALTEREN, Peter Christiaan POST, Aster KATOEN, Dennis MOCKING, Alwin FRANSEN
  • Patent number: 11024483
    Abstract: A transmission charged particle microscope includes a specimen holder for holding a specimen; a source for producing a charged particle beam; an illuminator for directing said beam to irradiate the specimen, wherein the illuminator comprising a monochromator and a condenser lens assembly; and an imaging system for receiving a flux of charged particles transmitted through the specimen. The microscope is controlled to produce a first energy spread of an emerging beam exiting said aperture by selecting at least one of parameters (a) an excitation of a first lens of said condenser lens assembly and (b) a width of a condenser aperture downstream of said first lens.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: June 1, 2021
    Assignee: FEI Company
    Inventor: Peter Christiaan Tiemeijer
  • Patent number: D932021
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: September 28, 2021
    Assignee: Sonion Nederland B.V.
    Inventors: Alwin Fransen, Aster Marja Katoen, Dennis Jacobus Mattheus Mocking, Gerardus Johannes Franciscus Theodorus van der Beek, Peter Christiaan Post