Patents by Inventor Michael Patrick Hassel-Shearer

Michael Patrick Hassel-Shearer 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).

  • Publication number: 20230373028
    Abstract: A pulsed laser apparatus for milling a sample is described. The apparatus includes a pulsed laser, a scan head for scanning a beam from the pulsed laser across the sample an F-theta lens for focusing the scanned beam onto the sample and a confocal detector for detection of ablation depth. Methods of pulsed laser milling are also described.
    Type: Application
    Filed: October 8, 2021
    Publication date: November 23, 2023
    Applicant: Gatan, Inc.
    Inventors: Steven Thomas COYLE, Thijs C. HOSMAN, John Andrew HUNT, Michael Patrick HASSEL-SHEARER
  • Publication number: 20230311244
    Abstract: A pulsed laser apparatus for milling a sample is described. The apparatus includes a pulsed laser, a scan head for scanning a beam from the pulsed laser across the sample and an F-theta lens for focusing the scanned beam onto the sample. The apparatus may also include a liquid bath for milling the sample under the liquid, such as water. Methods of pulsed laser milling are also described.
    Type: Application
    Filed: August 27, 2021
    Publication date: October 5, 2023
    Applicant: Gatan, Inc.
    Inventors: Steven Thomas COYLE, Thijs C. HOSMAN, John Andrew HUNT, Michael Patrick HASSEL-SHEARER
  • Patent number: 11004656
    Abstract: Disclosed are embodiments of an ion beam sample preparation and coating apparatus and methods. A sample may be prepared in one or more ion beams and then a coating may be sputtered onto the prepared sample within the same apparatus. A vacuum transfer device may be used with the apparatus in order to transfer a sample into and out of the apparatus while in a controlled environment. Various methods to improve preparation and coating uniformity are disclosed including: rotating the sample retention stage; modulating the sample retention stage; variable tilt ion beam irradiating means, more than one ion beam irradiating means, coating thickness monitoring, selective shielding of the sample, and modulating the coating donor holder.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: May 11, 2021
    Assignee: Gatan, Inc.
    Inventors: John Andrew Hunt, Steven Thomas Coyle, Michael Patrick Hassel-Shearer, Thijs C Hosman
  • Patent number: 10731246
    Abstract: Disclosed are embodiments of an ion beam sample preparation and coating apparatus and methods. A sample may be prepared in one or more ion beams and then a coating may be sputtered onto the prepared sample within the same apparatus. A vacuum transfer device may be used with the apparatus in order to transfer a sample into and out of the apparatus while in a controlled environment. Various methods to improve preparation and coating uniformity are disclosed including: rotating the sample retention stage; modulating the sample retention stage; variable tilt ion beam irradiating means, more than one ion beam irradiating means, coating thickness monitoring, selective shielding of the sample, and modulating the coating donor holder.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: August 4, 2020
    Assignee: Gatan, Inc.
    Inventors: John Andrew Hunt, Steven Thomas Coyle, Michael Patrick Hassel-Shearer, Thijs C Hosman
  • Patent number: 10110854
    Abstract: Disclosed are embodiments of an ion beam sample preparation apparatus and methods. The methods operate on a sample disposed in a vacuum chamber and include steps of directing an intensity-controllable, tilt-angle controllable ion beam at a sample holder coupled to a rotation stage. The methods further include illuminating and capturing one or more images of the sample, extracting useful features from one or more images and thereafter adjusting the sample preparation steps. Further methods are disclosed for capturing sequences of images, programmatically rotating images, and displaying sequences of images with similar rotation angles. Further methods include extracting useful features from sequences of images that may change with respect to time as ion beam preparation continues.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: October 23, 2018
    Assignee: Gatan, Inc.
    Inventors: John Andrew Hunt, Steven Thomas Coyle, Michael Patrick Hassel-Shearer
  • Publication number: 20160111249
    Abstract: Disclosed are embodiments of an ion beam sample preparation and coating apparatus and methods. A sample may be prepared in one or more ion beams and then a coating may be sputtered onto the prepared sample within the same apparatus. A vacuum transfer device may be used with the apparatus in order to transfer a sample into and out of the apparatus while in a controlled environment. Various methods to improve preparation and coating uniformity are disclosed including: rotating the sample retention stage; modulating the sample retention stage; variable tilt ion beam irradiating means, more than one ion beam irradiating means, coating thickness monitoring, selective shielding of the sample, and modulating the coating donor holder.
    Type: Application
    Filed: October 13, 2015
    Publication date: April 21, 2016
    Inventors: John Andrew Hunt, Steven Thomas Coyle, Michael Patrick Hassel-Shearer, Thijs C. Hosman
  • Publication number: 20160024645
    Abstract: Disclosed are embodiments of an ion beam sample preparation and coating apparatus and methods. A sample may be prepared in one or more ion beams and then a coating may be sputtered onto the prepared sample within the same apparatus. A vacuum transfer device may be used with the apparatus in order to transfer a sample into and out of the apparatus while in a controlled environment. Various methods to improve preparation and coating uniformity are disclosed including: rotating the sample retention stage; modulating the sample retention stage; variable tilt ion beam irradiating means, more than one ion beam irradiating means, coating thickness monitoring, selective shielding of the sample, and modulating the coating donor holder.
    Type: Application
    Filed: July 24, 2015
    Publication date: January 28, 2016
    Inventors: John Andrew Hunt, Steven Thomas Coyle, Michael Patrick Hassel-Shearer, Thijs C. Hosman
  • Patent number: 9196455
    Abstract: Ion beam sample preparation apparatus and methods are described. The apparatus has disposed in a vacuum chamber at least one tilting ion beam irradiating means with intensity control, a rotation stage with rotation control, a sample holder, and an adjustable positioning stage that has two axes of positional adjustment that are operable to move the region of the sample being prepared by the ion beam relative to the ion beam. The apparatus may also include a vacuum-tight optical window for observing the sample and a shutter for protecting the optical window from debris while the sample is prepared in the ion beam. The apparatus may also include an instrument controller responsive to the state of the apparatus and to the condition of the sample and is operable to control the preparation of the sample.
    Type: Grant
    Filed: July 27, 2014
    Date of Patent: November 24, 2015
    Assignee: Gatan, Inc.
    Inventors: Steven Thomas Coyle, John Andrew Hunt, Michael Patrick Hassel-Shearer
  • Publication number: 20140332699
    Abstract: Ion beam sample preparation apparatus and methods are described. The apparatus has disposed in a vacuum chamber at least one tilting ion beam irradiating means with intensity control, a rotation stage with rotation control, a sample holder, and an adjustable positioning stage that has two axes of positional adjustment that are operable to move the region of the sample being prepared by the ion beam relative to the ion beam. The apparatus may also include a vacuum-tight optical window for observing the sample and a shutter for protecting the optical window from debris while the sample is prepared in the ion beam. The apparatus may also include an instrument controller responsive to the state of the apparatus and to the condition of the sample and is operable to control the preparation of the sample.
    Type: Application
    Filed: July 27, 2014
    Publication date: November 13, 2014
    Inventors: Steven Thomas Coyle, John Andrew Hunt, Michael Patrick Hassel-Shearer
  • Patent number: 8791438
    Abstract: Disclosed are embodiments of an ion beam sample preparation apparatus and methods. The apparatus has disposed in a vacuum chamber at least one tilting ion beam irradiating means with intensity control, a rotation stage with rotation control, a sample holder, and an adjustable positioning stage that has two axes of positional adjustment that are operable to move the region of the sample being prepared by the ion beam relative to the ion beam. The apparatus may also include a vacuum-tight optical window for observing the sample and a shutter for protecting the optical window from debris while the sample is prepared in the ion beam.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: July 29, 2014
    Assignee: Gatan Inc.
    Inventors: Steven Thomas Coyle, John Andrew Hunt, Michael Patrick Hassel-Shearer
  • Publication number: 20140091237
    Abstract: Disclosed are embodiments of an ion beam sample preparation apparatus and methods. The apparatus has disposed in a vacuum chamber at least one tilting ion beam irradiating means with intensity control, a rotation stage with rotation control, a sample holder, and an adjustable positioning stage that has two axes of positional adjustment that are operable to move the region of the sample being prepared by the ion beam relative to the ion beam. The apparatus may also include a vacuum-tight optical window for observing the sample and a shutter for protecting the optical window from debris while the sample is prepared in the ion beam.
    Type: Application
    Filed: July 24, 2013
    Publication date: April 3, 2014
    Applicant: Gatan, Inc.
    Inventors: Steven Thomas Coyle, John Andrew Hunt, Michael Patrick Hassel-Shearer