Patents by Inventor Gudrun Ghilaine Agnes De Gersem

Gudrun Ghilaine Agnes De Gersem 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).

  • MAGNET ASSEMBLY, COIL ASSEMBLY, PLANAR MOTOR, POSITIONING DEVICE AND LITHOGRAPHIC APPARATUS
    Publication number: 20230208269
    Abstract: The invention provides a magnet assembly for a planar electromagnetic motor, the magnet assembly comprising:—a first plurality of superconductive (SC) coils, inside an outer circumference and arranged in a planar pattern such as a rectangular pattern,—a second plurality of SC coils, arranged along an outer boundary of the planar pattern, a coil of the first plurality of SC coils having a first in-plane shape and a coil of the second plurality of SC coils having a second in-plane shape, different from the first in-plane shape, wherein the second plurality of SC coils is arranged at least partly inside the outer circumference.
    Type: Application
    Filed: April 18, 2021
    Publication date: June 29, 2023
    Applicant: ASML Netherlands B.V.
    Inventors: Gudrun Ghilaine Agnes DE GERSEM, Roger Franciscus Mattheus Maria HAMELINCK, Jeroen VAN DUIVENBODE
  • Lithographic apparatus, an operating method and device manufacturing method
    Patent number: 11243477
    Abstract: The invention relates to a lithographic apparatus comprising: an actuation system for positioning an object; a control unit (CU) for controlling the actuation system; and a cooling system for cooling the actuation system, wherein the actuation system comprises a coil assembly (CA) including one or more coils (CO) as force generating members, wherein the cooling system comprises cooling element (CE) interacting with the coil assembly for cooling the coil assembly, and wherein the control unit is configured to control a temperature of the one or more coils to keep a magnitude of cyclic stress below a predetermined value.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: February 8, 2022
    Assignee: ASML Netherlands B.V.
    Inventor: Gudrun Ghilaine Agnes De Gersem
  • Lithographic Apparatus, an Operating Method and Device Manufacturing Method
    Publication number: 20210132512
    Abstract: The invention relates to a lithographic apparatus comprising: an actuation system for positioning an object; a control unit (CU) for controlling the actuation system; and a cooling system for cooling the actuation system, wherein the actuation system comprises a coil assembly (CA) including one or more coils (CO) as force generating members, wherein the cooling system comprises cooling element (CE) interacting with the coil assembly for cooling the coil assembly, and wherein the control unit is configured to control a temperature of the one or more coils to keep a magnitude of cyclic stress below a predetermined value.
    Type: Application
    Filed: December 14, 2018
    Publication date: May 6, 2021
    Applicant: ASML Netherlands B.V.
    Inventor: Gudrun Ghilaine Agnes DE GERSEM
  • Surface spacing using rigid spacers
    Patent number: 7983138
    Abstract: An apparatus comprises a storage medium, a substrate separated from the storage medium by a gap, and a plurality of spacers defining a distance between the storage medium and the substrate, wherein the spacers include a curved end.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: July 19, 2011
    Assignee: Seagate Technology LLC
    Inventors: Mark David Bedillion, Patrick Breckow Chu, Narayanan Ramakrishnan, James Dillon Kiely, Gudrun Ghilaine Agnes De Gersem
  • Surface spacing using rigid spacers
    Publication number: 20080088976
    Abstract: An apparatus comprises a storage medium, a substrate separated from the storage medium by a gap, and a plurality of spacers defining a distance between the storage medium and the substrate, wherein the spacers include a curved end.
    Type: Application
    Filed: November 30, 2006
    Publication date: April 17, 2008
    Inventors: Mark David Bedillion, Patrick Breckow Chu, Narayanan Ramakrishnan, James Dillon Kiely, Gudrun Ghilaine Agnes De Gersem