Patents by Inventor Michael Ragan Krames

Michael Ragan Krames 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: 9995439
    Abstract: Compact reflective lens for a high intensity light emitting diode light sources having improved output beam characteristics are disclosed. The reflective lenses can be configured to increase output intensity, control output light characteristics, and reduce glare.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: June 12, 2018
    Assignee: SORAA, INC.
    Inventors: Frank Tin Chung Shum, Michael Ragan Krames
  • Publication number: 20180053878
    Abstract: High-performance light-emitting diode together with apparatus and method embodiments thereto are disclosed. The light emitting diode devices emit at a wavelength of 390 nm to 470 nm or at a wavelength of 405 nm to 430 nm. Light emitting diode devices are characterized by having a geometric relationship (e.g., aspect ratio) between a lateral dimension of the device and a vertical dimension of the device such that the geometric aspect ratio forms a volumetric light emitting diode that delivers a substantially flat current density across the device (e.g., as measured across a lateral dimension of the active region). The light emitting diode devices are characterized by having a current density in the active region of greater than about 175 Amps/cm2.
    Type: Application
    Filed: October 17, 2017
    Publication date: February 22, 2018
    Inventors: Michael J. Cich, Aurelien J.F. David, Christophe Hurni, Rafael Aldaz, Michael Ragan Krames
  • Patent number: 9831388
    Abstract: High-performance light-emitting diode together with apparatus and method embodiments thereto are disclosed. The light emitting diode devices emit at a wavelength of 390 nm to 470 nm or at a wavelength of 405 nm to 430 nm. Light emitting diode devices are characterized by having a geometric relationship (e.g., aspect ratio) between a lateral dimension of the device and a vertical dimension of the device such that the geometric aspect ratio forms a volumetric light emitting diode that delivers a substantially flat current density across the device (e.g., as measured across a lateral dimension of the active region). The light emitting diode devices are characterized by having a current density in the active region of greater than about 175 Amps/cm2.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: November 28, 2017
    Assignee: Soraa, Inc.
    Inventors: Michael J. Cich, Aurelien J. F. David, Christophe Hurni, Rafael Aldaz, Michael Ragan Krames
  • Publication number: 20170324010
    Abstract: Small LED sources with high brightness and high efficiency apparatus including the small LED sources and methods of using the small LED sources are disclosed.
    Type: Application
    Filed: July 27, 2017
    Publication date: November 9, 2017
    Inventors: AURELIEN J.F. DAVID, RAFAEL ALDAZ, MICHAEL RAGAN KRAMES, FRANK M. STERANKA, KEVIN HUANG, TROY TROTTIER
  • Publication number: 20170247812
    Abstract: Techniques for processing materials for manufacture of gallium-containing nitride substrates are disclosed. More specifically, techniques for fabricating and reusing large area substrates using a combination of processing techniques are disclosed. The methods can be applied to fabricating substrates of GaN, AlN, InN, InGaN, AlGaN, and AlInGaN, and others. Such substrates can be used for a variety of applications including optoelectronic devices, lasers, light emitting diodes, solar cells, photo electrochemical water splitting and hydrogen generation, photo detectors, integrated circuits, transistors, and others.
    Type: Application
    Filed: May 16, 2017
    Publication date: August 31, 2017
    Inventors: MARK P. D'EVELYN, MICHAEL RAGAN KRAMES
  • Publication number: 20170222100
    Abstract: An LED pump light with multiple phosphors is described. LEDs emitting radiation at violet and/or ultraviolet wavelengths are used to pump phosphor materials that emit other colors. The LEDs operating in different wavelength ranges are arranged to reduce light re-absorption and improve light output efficiency.
    Type: Application
    Filed: April 17, 2017
    Publication date: August 3, 2017
    Inventors: Aurelien J.F. David, Arpan Chakraborty, Michael Ragan Krames, Troy Trottier
  • Patent number: 9660152
    Abstract: An LED pump light with multiple phosphors is described. LEDs emitting radiation at violet and/or ultraviolet wavelengths are used to pump phosphor materials that emit other colors. The LEDs operating in different wavelength ranges are arranged to reduce light re-absorption and improve light output efficiency.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: May 23, 2017
    Assignee: Soraa, Inc.
    Inventors: Aurelien J. F. David, Arpan Chakraborty, Michael Ragan Krames, Troy Trottier
  • Publication number: 20170141268
    Abstract: High-performance light-emitting diode together with apparatus and method embodiments thereto are disclosed. The light emitting diode devices emit at a wavelength of 390 nm to 470 nm or at a wavelength of 405 nm to 430 nm. Light emitting diode devices are characterized by having a geometric relationship (e.g., aspect ratio) between a lateral dimension of the device and a vertical dimension of the device such that the geometric aspect ratio forms a volumetric light emitting diode that delivers a substantially flat current density across the device (e.g., as measured across a lateral dimension of the active region). The light emitting diode devices are characterized by having a current density in the active region of greater than about 175 Amps/cm2.
    Type: Application
    Filed: January 27, 2017
    Publication date: May 18, 2017
    Inventors: Michael J. Cich, Aurelien J.F. David, Christophe Hurni, Rafael Aldaz, Michael Ragan Krames
  • Patent number: 9653554
    Abstract: Techniques for processing materials for manufacture of gallium-containing nitride substrates are disclosed. More specifically, techniques for fabricating and reusing large area substrates using a combination of processing techniques are disclosed. The methods can be applied to fabricating substrates of GaN, AlN, InN, InGaN, AlGaN, and AlInGaN, and others. Such substrates can be used for a variety of applications including optoelectronic devices, lasers, light emitting diodes, solar cells, photo electrochemical water splitting and hydrogen generation, photo detectors, integrated circuits, transistors, and others.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: May 16, 2017
    Assignee: Soraa, Inc.
    Inventors: Mark P. D'Evelyn, Michael Ragan Krames
  • Patent number: 9583678
    Abstract: High-performance light-emitting diode together with apparatus and method embodiments thereto are disclosed. The light emitting diode devices emit at a wavelength of 390 nm to 470 nm or at a wavelength of 405 nm to 430 nm. Light emitting diode devices are characterized by having a geometric relationship (e.g., aspect ratio) between a lateral dimension of the device and a vertical dimension of the device such that the geometric aspect ratio forms a volumetric light emitting diode that delivers a substantially flat current density across the device (e.g., as measured across a lateral dimension of the active region). The light emitting diode devices are characterized by having a current density in the active region of greater than about 175 Amps/cm2.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: February 28, 2017
    Assignee: Soraa, Inc.
    Inventors: Michael J. Cich, Aurelien J. F. David, Christophe Hurni, Rafael Aldaz, Michael Ragan Krames
  • Publication number: 20160351761
    Abstract: Small LED sources with high brightness and high efficiency apparatus including the small LED sources and methods of using the small LED sources are disclosed.
    Type: Application
    Filed: August 15, 2016
    Publication date: December 1, 2016
    Inventors: AURELIEN J.F. DAVID, RAFAEL ALDAZ, MICHAEL RAGAN KRAMES, FRANK M. STERANKA, KEVIN HUANG, TROY TROTTIER
  • Publication number: 20160276550
    Abstract: An LED pump light with multiple phosphors is described. LEDs emitting radiation at violet and/or ultraviolet wavelengths are used to pump phosphor materials that emit other colors. The LEDs operating in different wavelength ranges are arranged to reduce light re-absorption and improve light output efficiency.
    Type: Application
    Filed: March 22, 2016
    Publication date: September 22, 2016
    Inventors: AURELIEN J. F. DAVID, ARPAN CHAKRABORTY, MICHAEL RAGAN KRAMES, TROY TROTTIER
  • Patent number: 9419189
    Abstract: Small LED sources with high brightness and high efficiency apparatus including the small LED sources and methods of using the small LED sources are disclosed.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: August 16, 2016
    Assignee: Soraa, Inc.
    Inventors: Aurelien J. F. David, Rafael Aldaz, Michael Ragan Krames, Frank M. Steranka, Kevin Huang, Troy Trottier
  • Patent number: 9360190
    Abstract: The present invention relates to a compact optic lens for a high intensity light source having improved output beam characteristics. The compact optic lens provides increased light output without increasing device cost or device size to enable coverage of many beam angles.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: June 7, 2016
    Assignee: Soraa, Inc.
    Inventors: Frank Tin Chung Shum, Michael Ragan Krames
  • Publication number: 20160116124
    Abstract: Techniques for emulating dimming curves using temperature-sensitive wavelength-converting materials together with apparatus and method embodiments thereto are disclosed.
    Type: Application
    Filed: October 28, 2015
    Publication date: April 28, 2016
    Inventors: STEPHEN PODOWITZ, ROHIT MODI, TROY TROTTIER, AURELIEN J.F. DAVID, MICHAEL RAGAN KRAMES
  • Patent number: 9293667
    Abstract: An LED pump light with multiple phosphors is described. LEDs emitting radiation at violet and/or ultraviolet wavelengths are used to pump phosphor materials that emit other colors. The LEDs operating in different wavelength ranges are arranged to reduce light re-absorption and improve light output efficiency.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: March 22, 2016
    Assignee: Soraa, Inc.
    Inventors: Aurelien J. F. David, Arpan Chakraborty, Michael Ragan Krames, Troy Trottier
  • Publication number: 20160020284
    Abstract: Techniques for processing materials for manufacture of gallium-containing nitride substrates are disclosed. More specifically, techniques for fabricating and reusing large area substrates using a combination of processing techniques are disclosed. The methods can be applied to fabricating substrates of GaN, AlN, InN, InGaN, AlGaN, and AlInGaN, and others. Such substrates can be used for a variety of applications including optoelectronic devices, lasers, light emitting diodes, solar cells, photo electrochemical water splitting and hydrogen generation, photo detectors, integrated circuits, transistors, and others.
    Type: Application
    Filed: July 21, 2015
    Publication date: January 21, 2016
    Inventors: MARK P. D'EVELYN, MICHAEL RAGAN KRAMES
  • Publication number: 20150233536
    Abstract: Light emitting devices and techniques for using phosphor-coated optical elements in a lamp cavity are disclosed.
    Type: Application
    Filed: May 4, 2015
    Publication date: August 20, 2015
    Inventors: MICHAEL RAGAN KRAMES, Aurelien J.F. David
  • Patent number: D736723
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: August 18, 2015
    Assignee: Soraa, Inc.
    Inventors: Frank Shum, Clifford Jue, Artem Mishin, Zinovy Dolgonosov, George Xie, Michael Ragan Krames, Jinhui Zhai
  • Patent number: D736724
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: August 18, 2015
    Assignee: Soraa, Inc.
    Inventors: Frank Shum, Clifford Jue, Artem Mishin, Zinovy Dolgonosov, George Xie, Michael Ragan Krames, Jinhui Zhai