Patents by Inventor Zakya H. Kafafi

Zakya H. Kafafi 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: 10170729
    Abstract: An electrically conductive film suited to use as a transparent anode, a method of forming the film, and an electronic device comprising the film are disclosed. The device includes a conductive polymer electrode defining first and second surfaces and having an electrical conductivity gradient between the first and second surfaces. A second electrode is spaced from the second surface by at least one organic material layer, such as a light emitting layer.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: January 1, 2019
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Woohong Kim, Gary P. Kushto, Zakya H. Kafafi
  • Publication number: 20150024532
    Abstract: An electrically conductive film suited to use as a transparent anode, a method of forming the film, and an electronic device comprising the film are disclosed. The device includes a conductive polymer electrode defining first and second surfaces and having an electrical conductivity gradient between the first and second surfaces. A second electrode is spaced from the second surface by at least one organic material layer, such as a light emitting layer.
    Type: Application
    Filed: May 6, 2014
    Publication date: January 22, 2015
    Inventors: Woohong Kim, Gary P. Kushto, Zakya H. Kafafi
  • Publication number: 20100307791
    Abstract: An electrically conductive film suited to use as a transparent anode, a method of forming the film, and an electronic device comprising the film are disclosed. The device includes a conductive polymer electrode defining first and second surfaces and having an electrical conductivity gradient between the first and second surfaces. A second electrode is spaced from the second surface by at least one organic material layer, such as a light emitting layer.
    Type: Application
    Filed: June 9, 2009
    Publication date: December 9, 2010
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Woohong Kim, Gary P. Kushto, Zakya H. Kafafi
  • Patent number: 7221088
    Abstract: The present invention describes the use of red, green and, if necessary, blue dopants dispersed in a universal host material as the active emitting layer in OLEDs. The universal host is transparent in the visible region, and may be emissive in the blue region when used as the blue emitting species or possesses carrier transport properties. By dispersing the dopants in the universal host, efficient energy transfer from host to guest and/or direct carrier recombination on the dopant takes place resulting in bright red, green or blue emission, depending on the dopant. The resulting spectra are characteristic of the guest molecules.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: May 22, 2007
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Zakya H. Kafafi, Lisa C. Picciolo, Hideyuki Murata
  • Patent number: 6818924
    Abstract: The invention relates to the deposition of transparent conducting thin films, such as transparent conducting oxides (TCO) such as tin doped indium oxide (ITO) and aluminum doped zinc oxide (AZO) on flexible substrates by pulsed laser deposition. The coated substrates are used to construct low cost, lightweight, flexible displays based on organic light emitting diodes (OLEDs).
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: November 16, 2004
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Heungsoo Kim, James S. Horwitz, Zakya H. Kafafi, Alberto Pique, Gary P. Kushto
  • Patent number: 6645843
    Abstract: The invention relates to the deposition of transparent conducting thin films, such as transparent conducting oxides (TCO) such as tin doped indium oxide (ITO) and aluminum doped zinc oxide (AZO) on flexible substrates by pulsed laser deposition. The coated substrates are used to construct low cost, lightweight, flexible displays based on organic light emitting diodes (OLEDs).
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: November 11, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Heungsoo Kim, James S. Horwitz, Zakya H. Kafafi, Alberto Pique, Gary P. Kushto
  • Publication number: 20030199157
    Abstract: The invention relates to the deposition of transparent conducting thin films, such as transparent conducting oxides (TCO) such as tin doped indium oxide (ITO) and aluminum doped zinc oxide (AZO) on flexible substrates by pulsed laser deposition. The coated substrates are used to construct low cost, lightweight, flexible displays based on organic light emitting diodes (OLEDs).
    Type: Application
    Filed: May 16, 2003
    Publication date: October 23, 2003
    Inventors: Heungsoo Kim, James S. Horwitz, Zakya H. Kafafi, Alberto Pique, Gary P. Kushto
  • Publication number: 20030186078
    Abstract: The present invention provides a method for fabricating an electroluminescent EL display, wherein the individual color pixels are formed by doping a common blue-emitting host with two or more photo-bleachable (or photo-oxidizable) dopants, such as red and green emitting organic materials. The host may also be doped with a blue emitting material that is not photo-bleachable.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 2, 2003
    Inventors: Hideyuki Murata, Lisa C. Picciolo, Zakya H. Kafafi
  • Publication number: 20020098668
    Abstract: The invention relates to the deposition of transparent conducting thin films, such as transparent conducting oxides (TCO) such as tin doped indium oxide (ITO) and aluminum doped zinc oxide (AZO) on flexible substrates by pulsed laser deposition. The coated substrates are used to construct low cost, lightweight, flexible displays based on organic light emitting diodes (OLEDs).
    Type: Application
    Filed: January 19, 2001
    Publication date: July 25, 2002
    Inventors: Heungsoo Kim, James S. Horwitz, Zakya H. Kafafi, Alberto Pique, Gary P. Kushto
  • Publication number: 20020067124
    Abstract: The present invention describes the use of red, green and, if necessary, blue dopants dispersed in a universal host material as the active emitting layer in OLEDs. The universal host is transparent in the visible region, and may be emissive in the blue region when used as the blue emitting species or possesses carrier transport properties. By dispersing the dopants in the universal host, efficient energy transfer from host to guest and/or direct carrier recombination on the dopant takes place resulting in bright red, green or blue emission, depending on the dopant. The resulting spectra are characteristic of the guest molecules.
    Type: Application
    Filed: November 29, 2001
    Publication date: June 6, 2002
    Inventors: Zakya H. Kafafi, Lisa C. Picciolo, Hideyuki Murata
  • Patent number: 5405906
    Abstract: Nonlinear optical composites with large third-order optical response compd of metal clusters uniformly dispersed in polymers are prepared by vapor deposition of a metal onto a cold support while simultaneously cocondensing a vapor of an organic material. Where the organic material is a monomer, it polymerizes either when it comes in contact of the metal and/or when the cold surface is warmed. The unpolymerized monomer is removed to yield a processable composite. When the organic material is a diluent, it deposits as a solid on the cold surface forming a dispersion of the solid metal clusters in the liquid diluent. A polymer solution is then mixed with the dispersion and the composite is formed after removal of the diluent and the solvent for the polymer.
    Type: Grant
    Filed: April 29, 1993
    Date of Patent: April 11, 1995
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Allan W. Olsen, Zakya H. Kafafi
  • Patent number: 5234758
    Abstract: Nonlinear optical composites with large third-order optical response compd of metal clusters uniformly dispersed in polymers are prepared by vapor deposition of a metal onto a cold support while simultaneously cocondensing a vapor of an organic material. Where the organic material is a monomer, it polymerizes either when it comes in contact of the metal and/or when the cold surface is warmed. The unpolymerized monomer is removed to yield a processable composite. When the organic material is a diluent, it deposits as a solid on the cold surface forming a dispersion of the solid metal clusters in the liquid diluent. A polymer solution is then mixed with the dispersion and the composite is formed after removal of the diluent and the solvent for the polymer.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: August 10, 1993
    Assignee: The United States of Americas as represented by the Secretary of the Navy
    Inventors: Allan W. Olsen, Zakya H. Kafafi
  • Patent number: H2084
    Abstract: Pentacene derivatives substituted with two or more aromatic, substituted aromatic, heteroaromatic, or substituted heteroaromatic groups are dopants for organic electroluminescent devices. When combined with host materials and incorporated into an organic light emitting devices, the pentacene derivatives are red emitters with narrow spectra.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: October 7, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Lisa Crisafulli Picciolo, Hideyuki Murata, Zakya H. Kafafi