Patents by Inventor Brian J. Gates

Brian J. Gates 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: 10228617
    Abstract: A semi-submersible microscope objective includes a microscope objective having a protective barrel with an optical inlet and optical outlet, and a protective element affixed to the microscope objective, sealing the optical exit but not the optical inlet. A transparent portion of the protective element is aligned with the optical exit. The protective element is separable from the microscope objective without damaging the microscope objective. Use of the semi-submersible microscope objective in a multiphoton imaging method is also disclosed.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: March 12, 2019
    Assignee: 3M Innovative Properties Company
    Inventors: Brian J. Gates, Robert J. DeVoe, Tzu-Chen Lee, Bradford B. Wright
  • Patent number: 10133174
    Abstract: A method of fabricating a structure includes disposing a liquid photoreactive composition on a substrate, exposing a portion of the liquid photoreactive composition to laser light of sufficient intensity and wavelength to cause polymerization via two-photon excitation of the two-photon sensitizer and polymerization of a portion of the liquid photoreactive composition thereby providing an exposed composition; and developing the exposed composition to provide the structure. The liquid composition includes: at least one cationically polymerizable polyepoxide; at least one compound comprising free-radically polymerizable groups; an effective amount of a two-photon photoinitiator system, wherein the weight ratio of component (a) to component (b) is from 25:75 to 75:25, inclusive. The two-photon photoinitiator system includes a two-photon sensitizer and an aromatic onium salt. The liquid photoreactive composition may contain less than about one percent by weight of organic solvent.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: November 20, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Tzu-Chen Lee, Robert J. DeVoe, Brian K. Nelson, Brian J. Gates
  • Publication number: 20180231888
    Abstract: A semi-submersible microscope objective includes a microscope objective having a protective barrel with an optical inlet and optical outlet, and a protective element affixed to the microscope objective, sealing the optical exit but not the optical inlet. A transparent portion of the protective element is aligned with the optical exit. The protective element is separable from the microscope objective without damaging the microscope objective. Use of the semi-submersible microscope objective in a multiphoton imaging method is also disclosed.
    Type: Application
    Filed: February 8, 2018
    Publication date: August 16, 2018
    Inventors: Brian J. Gates, Robert J. DeVoe, Tzu-Chen Lee, Bradford B. Wright
  • Patent number: 9927702
    Abstract: A semi-submersible microscope objective (100) includes a microscope objective having a protective barrel (120) with an optical inlet (122) and optical outlet (124), and a protective element (130) affixed to the microscope objective, sealing the optical outlet (124) but not the optical inlet (122). A transparent portion (132) of the protective element is aligned with the optical exit (124). The protective element is separable from the microscope objective without damaging the microscope objective. Use of the semi-submersible microscope objective in a multiphoton imaging method is also disclosed.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: March 27, 2018
    Assignee: 3M Innovative Properties Company
    Inventors: Brian J. Gates, Robert J. DeVoe, Tzu-Chen Lee, Bradford B. Wright
  • Publication number: 20160306277
    Abstract: A method of fabricating a structure includes disposing a liquid photoreactive composition on a substrate, exposing a portion of the liquid photoreactive composition to laser light of sufficient intensity and wavelength to cause polymerization via two-photon excitation of the two-photon sensitizer and polymerization of a portion of the liquid photoreactive composition thereby providing an exposed composition; and developing the exposed composition to provide the structure. The liquid composition includes: at least one cationically polymerizable polyepoxide; at least one compound comprising free-radically polymerizable groups; an effective amount of a two-photon photoinitiator system, wherein the weight ratio of component (a) to component (b) is from 25:75 to 75:25, inclusive. The two-photon photoinitiator system includes a two-photon sensitizer and an aromatic onium salt. The liquid photoreactive composition may contain less than about one percent by weight of organic solvent.
    Type: Application
    Filed: December 1, 2014
    Publication date: October 20, 2016
    Inventors: Tzu-Chen Lee, Robert J. DeVoe, Brian K. Nelson, Brian J. Gates
  • Publication number: 20160299426
    Abstract: A semi-submersible microscope objective (100) includes a microscope objective having a protective barrel (120) with an optical inlet (122) and optical outlet (124), and a protective element (130) affixed to the microscope objective, sealing the optical outlet (124) but not the optical inlet (122). A transparent portion (132) of the protective element is aligned with the optical exit (124). The protective element is separable from the microscope objective without damaging the microscope objective. Use of the semi-submersible microscope objective in a multiphoton imaging method is also disclosed.
    Type: Application
    Filed: December 1, 2014
    Publication date: October 13, 2016
    Inventors: Brian J. Gates, Robert J. DeVoe, Tzu-Chen Lee, Bradford B. Wright
  • Publication number: 20150030985
    Abstract: The present disclosure relates to multiphoton absorption methods for curing a photocurable composition under conditions wherein negative contrast occurs. The photocurable composition includes a free-radically polymerizable compound. The method is applicable to fabrication of structures with micron-scale dimensions or less.
    Type: Application
    Filed: February 18, 2013
    Publication date: January 29, 2015
    Inventors: Robert J. DeVoe, Tzu-Chen Lee, Brian J. Gates
  • Patent number: 8885146
    Abstract: An exposure system includes a light source emitting a beam along an optical axis that is capable of inducing a multi-photon reaction in a resin. The exposure system further includes a resin undergoing multiphoton reaction, as well as an automated system including a monitor that measures at least one property of the beam selected from power, pulse length, shape, divergence, or position in a plane normal to the optical axis. The monitor generates at least one signal indicative of the property of the beam, and a sub-system adjusts the beam in response to the signal from the monitor.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: November 11, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Robert J. DeVoe, Brian J. Gates, Dean Faklis, Robert T. Krasa, Przemyslaw P. Markowicz, Craig R. Sykora
  • Patent number: 8857028
    Abstract: A virtual image (VI) device displays an image that appears to lie above or below the plane of the device. A method of manufacturing a VI display device includes calculating an initial VI flux pattern based on an object and then fabricating a substrate having a VI array pattern based on the initial VI flux pattern. A plurality of lenses may then be applied over the VI array pattern. The VI substrate may be static or dynamic, and may show grey scale information. A photomask may be used as an intermediate element in the manufacture of the VI substrate, or may act as the VI substrate itself. A method of producing the initial VI flux pattern includes virtually tracing rays generated by different points of the object to an image plane and ii) summing the rays from the different points. The rays may be traced through a lens array.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: October 14, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Brian J. Gates, Charles A. Marttila, Travis L. Potts, Serge Wetzels
  • Publication number: 20140092372
    Abstract: An exposure system includes a light source emitting a beam along an optical axis that is capable of inducing a multi-photon reaction in a resin. The exposure system further includes a resin undergoing multiphoton reaction, as well as an automated system including a monitor that measures at least one property of the beam selected from power, pulse length, shape, divergence, or position in a plane normal to the optical axis. The monitor generates at least one signal indicative of the property of the beam, and a sub-system adjusts the beam in response to the signal from the monitor.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 3, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Robert J. DeVoe, Brian J. Gates, Dean Faklis, Robert T. Krasa, Przemyslaw P. Markowicz, Craig R. Sykora
  • Patent number: 8605256
    Abstract: An exposure system includes a light source emitting a beam along an optical axis that is capable of inducing a multi-photon reaction in a resin. The exposure system further includes a resin undergoing multiphoton reaction, as well as an automated system including a monitor that measures at least one property of the beam selected from power, pulse length, shape, divergence, or position in a plane normal to the optical axis. The monitor generates at least one signal indicative of the property of the beam, and a sub-system adjusts the beam in response to the signal from the monitor.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: December 10, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Robert J. DeVoe, Brian J. Gates, Dean Faklis, Robert T. Krasa, Przemyslaw P. Markowicz, Craig R. Sykora
  • Patent number: 8586285
    Abstract: A sheeting and a method of forming a sheeting from a master tool are described where the sheeting has a composite image that floats above or below the sheeting. The method includes providing a first sheeting comprising a first array of microlenses and a photopolymerizable first material layer adjacent to the first array of microlenses. Another step is exposing the first sheeting to a radiation source to form a master tool comprising a plurality of polymerized first structured areas in the first material layer, wherein at least some of the first structured areas include a portion shape in common with at least some of the first structured areas and wherein each first structured area is associated with one of the first array of microlenses. Yet another step is replicating the plurality of first structured areas using a substance that conforms to the plurality of structured areas to form a second material layer having a plurality of replicated structured areas.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: November 19, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Brian J. Gates, Robert T. Krasa, Travis L. Potts, Serge Wetzels
  • Patent number: 8455846
    Abstract: A method includes scanning a radiation beam with respect to a multi-photon curable photoreactive composition. The radiation beam includes a power sufficient to at least partially cure a volume of the multiphoton curable photoreactive composition. The method further includes modifying a characteristic of the radiation beam as the radiation beam is scanned.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: June 4, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Brian J. Gates, Robert T. Krasa, Przemyslaw P. Markowicz, Craig R. Sykora, Robert J. DeVoe, Dean Faklis
  • Patent number: 8451457
    Abstract: A system comprising a substrate having thereon a multiphoton curable photoreactive composition, a light source that emits a light beam comprising a plurality of wavelengths onto at least one region of the composition on the substrate, and a detector that detects a portion of light reflected from the composition to obtain a location signal with respect to the substrate, wherein the location signal is based at least on a wavelength of the reflected light.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: May 28, 2013
    Assignee: 3m Innovative Properties Company
    Inventors: Brian J. Gates, Craig R. Sykora, Dean Faklis, Andrew J. Murnan, Nestor O. Farmiga
  • Publication number: 20110179631
    Abstract: A virtual image (VI) device displays an image that appears to lie above or below the plane of the device. A method of manufacturing a VI display device includes calculating an initial VI flux pattern based on an object and then fabricating a substrate having a VI array pattern based on the initial VI flux pattern. A plurality of lenses may then be applied over the VI array pattern. The VI substrate may be static or dynamic, and may show grey scale information. A photomask may be used as an intermediate element in the manufacture of the VI substrate, or may act as the VI substrate itself. A method of producing the initial VI flux pattern includes virtually tracing rays generated by different points of the object to an image plane and ii) summing the rays from the different points. The rays may be traced through a lens array.
    Type: Application
    Filed: June 16, 2009
    Publication date: July 28, 2011
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Brian J. Gates, Charles A. Marttila, Travis L. Potts, Serge Wetzels
  • Publication number: 20110109965
    Abstract: A virtual image display device has a lens array and a virtual image substrate disposed behind the lens array. The virtual image substrate is provided with a virtual image pattern registered to lenses of the lens array. In some embodiments the virtual image pattern can include grey scale information, where the grey scale information includes information in at least one of color and shape. In a static virtual image substrate, the virtual image information can include pixels of at least two different colors. An optical mask can have a virtual image pattern arranged so that a virtual image of an object appears to a viewer when a lens array is applied to the mask. In other embodiments, an optical mask can include an intermediate virtual image pattern containing information for manufacturing a virtual image substrate.
    Type: Application
    Filed: June 16, 2009
    Publication date: May 12, 2011
    Inventors: Brian J. Gates, Charles A. Marttila, Travis L. Potts
  • Publication number: 20110001950
    Abstract: An exposure system includes a light source emitting a beam along an optical axis that is capable of inducing a multi-photon reaction in a resin. The exposure system further includes a resin undergoing multiphoton reaction, as well as an automated system including a monitor that measures at least one property of the beam selected from power, pulse length, shape, divergence, or position in a plane normal to the optical axis. The monitor generates at least one signal indicative of the property of the beam, and a sub-system adjusts the beam in response to the signal from the monitor.
    Type: Application
    Filed: February 17, 2009
    Publication date: January 6, 2011
    Inventors: Robert J. DeVoe, Brian J. Gates, Dean Faklis, Robert T. Krasa, Przemyslaw P. Markowicz, Craig R. Sykora
  • Patent number: 7858976
    Abstract: The invention relates to a method of making an organic electronic device and articles.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: December 28, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Raghunath Padiyath, Jon E. Ottman, David A. Engler, Fred B. McCormick, Donald J. McClure, Brian J. Gates
  • Publication number: 20100316959
    Abstract: A sheeting and a method of forming a sheeting from a master tool are described where the sheeting has a composite image that floats above or below the sheeting. The method includes providing a first sheeting comprising a first array of microlenses and a photopolymerizable first material layer adjacent to the first array of microlenses. Another step is exposing the first sheeting to a radiation source to form a master tool comprising a plurality of polymerized first structured areas in the first material layer, wherein at least some of the first structured areas include a portion shape in common with at least some of the first structured areas and wherein each first structured area is associated with one of the first array of microlenses. Yet another step is replicating the plurality of first structured areas using a substance that conforms to the plurality of structured areas to form a second material layer having a plurality of replicated structured areas.
    Type: Application
    Filed: November 10, 2008
    Publication date: December 16, 2010
    Inventors: Brian J. Gates, Robert T. Krasa, Travis L. Potts, Serge Wetzels
  • Publication number: 20100296106
    Abstract: A system comprising a substrate having thereon a multiphoton curable photoreactive composition, a light source that emits a light beam comprising a plurality of wavelengths onto at least one region of the composition on the substrate, and a detector that detects a portion of light reflected from the composition to obtain a location signal with respect to the substrate, wherein the location signal is based at least on a wavelength of the reflected light.
    Type: Application
    Filed: October 3, 2008
    Publication date: November 25, 2010
    Inventors: Brian J. Gates, Craig R. Sykora, Dean Faklis, Andrew J. Murnan, Nestor O. Farmiga