Patents by Inventor Claire Susan Henderson

Claire Susan Henderson 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: 8545723
    Abstract: A persistent phosphor of formula I is provided, along with methods for making and using the phosphor: AxAlyO4:Euj, REk, Bm, Znn, Coo, Scp ??I wherein: A is Ba, Sr, Ca, or a combination of these metals; x is greater than about 0.75 and less than about 1.3; y is greater than or equal to about 1.6 and less than or equal to 2; j is greater than about 0.0005 and less than about 0.1; k is greater than about 0.0005 and less than about 0.1; m is greater than or equal to 0 and less than about 0.30; n is greater than 0 and less than about 0.10; o is greater than 0 and less than about 0.01; p is greater than 0 and less than about 0.05; and RE is Dy, Nd, or a combination thereof. Applications for such phosphors include use in toys, emergency equipment, clothing, and instrument panels, among others.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: October 1, 2013
    Assignee: General Electric Company
    Inventors: Holly Ann Comanzo, Alok Mani Srivastava, William Winder Beers, Sergio Martins Loureiro, Anant Achyut Setlur, Stanley John Stoklosa, Claire Susan Henderson
  • Patent number: 8329060
    Abstract: Embodiments of the present techniques provide a related family of phosphors that may be used in lighting systems to generate blue or blue-green light. The phosphors include systems having a general formula of: ((Sr1?zMz)1?(x+w)AwCex)3(Al1?ySiy)O4+y+3(x?w)F1?y?3(x?w) (I), wherein 0<x?0.10, 0?y?0.5, 0?z?0.5, 0?w?x, A is Li, Na, K, Rb, or Ag or any combinations thereof, and M is Ca, Ba, Mg, Zn, or Sn or any combinations thereof. Advantageously, phosphors made accordingly to these formulations maintain emission intensity across a wide range of temperatures. The phosphors may be used in lighting systems, such as LEDs and fluorescent tubes, among others, to produce blue and blue/green light. Further, the phosphors may be used in blends with other phosphors, or in combined lighting systems, to produce white light suitable for illumination.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: December 11, 2012
    Assignee: General Electric Company
    Inventors: Anant Achyut Setlur, Ramachandran Gopi Chandran, Claire Susan Henderson, Pransanth Kumar Nammalwar, Emil Radkov
  • Patent number: 8211334
    Abstract: Orange-red phosphors activated by europium and rare earth ions of formula I and formula II are long persistent, stable, and non-toxic M1F2-M1S: Eu2+, Ln3+??(I) M23M32O5X2: inside or outside Eu2+, Ln3+??(II) wherein M1 is Ba, Sr, Ca, Zn, Mg, or a combination thereof; M2 is Ba, Sr, Ca, Mg, Zn, or a combination thereof; M3 is Al, Ga, B, In, or a combination thereof; X is F, Cl, Br, I, or a combination thereof; and Ln is Dy, Yb, Tm, Er, Ho, Sm, Nd, or a combination thereof.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: July 3, 2012
    Assignee: General Electric Company
    Inventors: Alok Mani Srivastava, Holly Ann Comanzo, Claire Susan Henderson
  • Patent number: 8003012
    Abstract: The current invention provides a persistent phosphor blend, along with techniques for making and using the blend. The persistent phosphor blend is made of at least one persistent phosphor combined with at least one other phosphor, where the excitation spectra of the one or more other phosphors overlap the emission spectra of the one or more persistent phosphors. The choice of the phosphors used allows the decay time and emission colors to be tuned for the specific application. In another embodiment, the invention provides a method for making persistent phosphor blends with tunable colors. In yet another embodiment, applications for such a persistent phosphor blend are provided.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: August 23, 2011
    Assignee: General Electric Company
    Inventors: Holly Ann Comanzo, Alok Mani Srivastava, William Winder Beers, Anant Achyut Setlur, Claire Susan Henderson
  • Publication number: 20110175029
    Abstract: A persistent phosphor of formula I is provided, along with methods for making and using the phosphor: AxAlyO4:Euj,REk,Bm,Znn,Coo,Scp ??I wherein: A is Ba, Sr, Ca, or a combination of these metals; x is greater than about 0.75 and less than about 1.3; y is greater than or equal to about 1.6 and less than or equal to 2; j is greater than about 0.0005 and less than about 0.1; k is greater than about 0.0005 and less than about 0.1; m is greater than or equal to 0 and less than about 0.30; n is greater than 0 and less than about 0.10; o is greater than 0 and less than about 0.01; p is greater than 0 and less than about 0.05; and RE is Dy, Nd, or a combination thereof. Applications for such phosphors include use in toys, emergency equipment, clothing, and instrument panels, among others.
    Type: Application
    Filed: March 30, 2011
    Publication date: July 21, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Holly Ann Comanzo, Alok Mani Srivastava, William Winder Beers, Sergio Martins Loureiro, Anant Achyut Setlur, Stanley John Stoklosa, Claire Susan Henderson
  • Publication number: 20110095676
    Abstract: Orange-red phosphors activated by europium and rare earth ions of formula I and formula II are long persistent, stable, and non-toxic M1F2-M1S:Eu2+, Ln3+??(I) M23M32O5X2: inside or outside Eu2+, Ln3+??(II) wherein M1 is Ba, Sr, Ca, Zn, Mg, or a combination thereof; M2 is Ba, Sr, Ca, Mg, Zn, or a combination thereof; M3 is Al, Ga, B, In, or a combination thereof; X is F, Cl, Br, I, or a combination thereof; and Ln is Dy, Yb, Tm, Er, Ho, Sm, Nd, or a combination thereof.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 28, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Alok Mani Srivastava, Holly Ann Comanzo, Claire Susan Henderson
  • Publication number: 20100096974
    Abstract: Embodiments of the present techniques provide a related family of phosphors that may be used in lighting systems to generate blue or blue-green light. The phosphors include systems having a general formula of: ((Sr1?zMz)1?(x+w)AwCex)3(Al1?ySiy)O4+y+3(x?w)F1?y?3(x?w) (I), wherein 0<x?0.10, 0?y?0.5, 0?z?0.5, 0?w?x, A is Li, Na, K, Rb, or Ag or any combinations thereof, and M is Ca, Ba, Mg, Zn, or Sn or any combinations thereof. Advantageously, phosphors made accordingly to these formulations maintain emission intensity across a wide range of temperatures. The phosphors may be used in lighting systems, such as LEDs and fluorescent tubes, among others, to produce blue and blue/green light. Further, the phosphors may be used in blends with other phosphors, or in combined lighting systems, to produce white light suitable for illumination.
    Type: Application
    Filed: October 22, 2008
    Publication date: April 22, 2010
    Applicant: General Electric Company
    Inventors: Anant Achyut Setlur, Ramachandran Gopi Chandran, Claire Susan Henderson, Pransanth Kumar Nammalwar, Emil Radkov
  • Publication number: 20080179567
    Abstract: The current invention provides a persistent phosphor blend, along with techniques for making and using the blend. The persistent phosphor blend is made of at least one persistent phosphor combined with at least one other phosphor, where the excitation spectra of the one or more other phosphors overlap the emission spectra of the one or more persistent phosphors. The choice of the phosphors used allows the decay time and emission colors to be tuned for the specific application. In another embodiment, the invention provides a method for making persistent phosphor blends with tunable colors. In yet another embodiment, applications for such a persistent phosphor blend are provided.
    Type: Application
    Filed: March 28, 2008
    Publication date: July 31, 2008
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Holly Ann Comanzo, Alok Mani Srivastava, William Winder Beers, Anant Achyut Setlur, Claire Susan Henderson