Patents by Inventor Howard Edan Katz

Howard Edan Katz 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: 11828741
    Abstract: A sensor includes a first sensing element electronically sensitive to an analyte and to an interfering stimulus. The first sensing element provides a first electrical signal in response to a presence of the analyte and/or the interfering stimulus. The sensor also includes a second sensing element electronically sensitive to the analyte and to the interfering stimulus. The second sensing element provides a second electrical signal in response to the presence of the analyte and/or the interfering stimulus. A conductive link electrically connects the first sensing mechanism and the second sensing mechanism. An electrical property is measured within the sensor that is indicative of a concentration of the analyte based on the first electrical signal and the second electrical signal.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: November 28, 2023
    Assignee: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Howard Edan Katz, Yingli Chu, Hui Li, Tushita Mukhopadhyaya, Justine Wagner, Huidong Fan
  • Publication number: 20210156837
    Abstract: A sensor includes a first sensing element electronically sensitive to an analyte and to an interfering stimulus. The first sensing element provides a first electrical signal in response to a presence of the analyte and/or the interfering stimulus. The sensor also includes a second sensing element electronically sensitive to the analyte and to the interfering stimulus. The second sensing element provides a second electrical signal in response to the presence of the analyte and/or the interfering stimulus. A conductive link electrically connects the first sensing mechanism and the second sensing mechanism. An electrical property is measured within the sensor that is indicative of a concentration of the analyte based on the first electrical signal and the second electrical signal.
    Type: Application
    Filed: May 30, 2019
    Publication date: May 27, 2021
    Inventors: Howard Edan KATZ, Yingli CHU, Hui LI, Tushita MUKHOPADHYAYA, Justine Wagner, Huidong FAN
  • Patent number: 9897569
    Abstract: An electronic device includes a first field effect transistor that includes a first gate electrode, a first drain electrode, and a first source electrode; a second field effect transistor that includes a second gate electrode, a second drain electrode, and a second source electrode, the first and second gate electrodes being at least one of electrically connected or integral, and the first and second source electrodes being at least one of electrically connected or integral; an input electrode electrically connected to the first and second gate electrodes; and an output electrode electrically connected to the first and second source electrodes. The first field effect transistor also includes a first semiconductor material. The second field effect transistor further also incudes a second semiconductor material.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: February 20, 2018
    Assignee: The Johns Hopkins University
    Inventors: Howard Edan Katz, Patrick N. Breysse, Bal Mukund Dhar, Noah Jonathan Tremblay
  • Patent number: 9091913
    Abstract: A method for producing a spatially patterned structure includes forming a layer of a material on at least a portion of a substructure of the spatially patterned structure, forming a barrier layer of a fluorinated material on the layer of material to provide an intermediate structure, and exposing the intermediate structure to at least one of a second material or radiation to cause at least one of a chemical change or a structural change to at least a portion of the intermediate structure. The barrier layer substantially protects the layer of the material from chemical and structural changes during the exposing. Substructures are produced according to this method.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: July 28, 2015
    Assignee: The Johns Hopkins University
    Inventors: Howard Edan Katz, Bal Makund Dhar
  • Patent number: 8963126
    Abstract: Hybrid semiconducting-dielectric materials and electronic or electro-optic devices using the hybrid semiconducting-dielectric materials. Hybrid semiconducting-dielectric materials comprise molecules that have a core section that provides an n-type semiconducting property and side chains that provide a dielectric property to a layer of hybrid semiconducting-dielectric material. Specific hybrid semiconducting-dielectric materials include tetracarboxylic diimide compounds having sidechains comprising fluorine substituted aliphatic or aromatic moieties linked to the tetracarboxylic diimide structure by an alkylene or heteroalkylene linking group.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: February 24, 2015
    Assignee: The Johns Hopkins University
    Inventors: Howard Edan Katz, Bhola Nath Pal, Kevin Cua See, Byung Jun Jung
  • Publication number: 20140220704
    Abstract: The present invention provides devices and articles of manufacture comprising a low-voltage operable, highly sensitive, and selectively responsive polymer for the detection of nitroaromatic compounds, including explosives. Resistive devices were fabricated by simple spin-coating on flexible and transparent substrates as well as silicon substrates, and were stable under ambient temperature and oxygen levels before exposure to the nitroaromatics. After exposure to 2,4,6-trinitrotoluene (TNT), the devices showed increased conductance, even with pg quantities of TNT, accompanied by a confirming color change from colorless to deep red. The relative conductance increase per unit exposure is the highest yet reported for TNT. Aromatic anion salts, on the other hand, did not induce any electronic responses. Methods of making the articles and devices, and their use are also provided.
    Type: Application
    Filed: August 3, 2012
    Publication date: August 7, 2014
    Applicant: The Johns Hopkins University
    Inventors: Howard Edan Katz, Hoyoul Kong, Sun Jia, Jasmine Sinha
  • Patent number: 8450723
    Abstract: Semiconductor apparatus comprising: a dielectric layer comprising a surface, a portion of the surface having exposed aromatic groups; and a polycrystalline semiconductor layer comprising an organic semiconductor composition overlying and in contact with the portion of the surface, the organic semiconductor composition comprising a compound comprising a chain-like moiety, the chain-like moiety comprising a conjugated thiophene or phenyl group and comprising alkyl chains at ends of the chain-like moiety. Devices comprising semiconductor apparatus, methods for making semiconductor apparatus, and methods for making devices.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: May 28, 2013
    Assignee: Alcatel Lucent
    Inventors: Hylke Akkerman, Howard Edan Katz
  • Publication number: 20130115136
    Abstract: An electronic device includes a first field effect transistor that includes a first gate electrode, a first drain electrode, and a first source electrode; a second field effect transistor that includes a second gate electrode, a second drain electrode, and a second source electrode, the first and second gate electrodes being at least one of electrically connected or integral, and the first and second source electrodes being at least one of electrically connected or integral; an input electrode electrically connected to the first and second gate electrodes; and an output electrode electrically connected to the first and second source electrodes. The first field effect transistor also includes a first semiconductor material. The second field effect transistor further also incudes a second semiconductor material.
    Type: Application
    Filed: July 8, 2011
    Publication date: May 9, 2013
    Applicant: The Johns Hopkins University
    Inventors: Howard Edan Katz, Patrick N. Breysse, Mukund Bal Dhar, Jonathan Noah Tremblay
  • Publication number: 20130099211
    Abstract: An electronic or electro-optic device has a first electrode, a second electrode spaced apart from the first electrode, and a dielectric layer disposed between the first and second electrodes. The dielectric layer has electrically insulating planar layers with intercalated ions therebetween such that the electrically insulating planar layers provide a barrier to impede movement of the intercalated ions to the first and second electrodes under an applied voltage while permitting a polarization of the dielectric layer while in operation.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 25, 2013
    Applicant: The Johns Hopkins University
    Inventors: Howard Edan Katz, Bhola Nath Pal, Kevin Cua See
  • Patent number: 8330149
    Abstract: Featured is an organic/polymer diode having a first layer composed essentially of one of an organic semiconductor material or a polymeric semiconductor material and a second layer formed on the first layer and being electrically coupled to the first layer such that current flows through the layers in one direction when a voltage is applied in one direction. The second layer is essentially composed of a material whose characteristics and properties are such that when formed on the first layer, the diode is capable of high frequency rectifications on the order of megahertz rectifications such as for example rectifications at one of above 100KHz, 500KhZ, IMHz, or 10 MHz. In further embodiments, the layers are arranged so as to be exposed to atmosphere.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: December 11, 2012
    Assignee: The Johns Hopkins University
    Inventors: Howard Edan Katz, Jia Sun, Nath Bhola Pal
  • Patent number: 8309955
    Abstract: An electronic or electro-optic device has a first electrode, a second electrode spaced apart from the first electrode, and a dielectric layer disposed between the first and second electrodes. The dielectric layer has electrically insulating planar layers with intercalated ions therebetween such that the electrically insulating planar layers provide a barrier to impede movement of the intercalated ions to the first and second electrodes under an applied voltage while permitting a polarization of the dielectric layer while in operation.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: November 13, 2012
    Assignee: The Johns Hopkins University
    Inventors: Howard Edan Katz, Bhola Nath Pal, Kevin Cua See
  • Patent number: 8269215
    Abstract: n-type organic semiconductors have a pyromellitic diimide structure and electronic or electro-optic devices include pyromellitic diimide compounds as organic semiconductors. Specific semiconductors include pyromellitic diimide compounds have sidechains comprising fluorine substituted aliphatic or aromatic moieties linked to the pyromellitic diimide structure by an alkylene or heteroalkylene linking group. An electronic or electro-optic device includes a first electrode, a second electrode space apart from the first electrode, and an organic semiconductor layer arranged between the first and second electrodes. The organic semiconductor layer comprises a pyromellitic diimide compound.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: September 18, 2012
    Assignee: The Johns Hopkins University
    Inventors: Howard Edan Katz, Qingdong Zheng, Byung Jun Jung
  • Publication number: 20120232238
    Abstract: Ladder-type oligo-p-phenylene containing donor-acceptor copolymers are disclosed. The ladder-type oligo-p-phenylene can be used as an electron donor unit in the disclosed copolymers to provide a deeper highest occupied molecular orbital (HOMO) level for obtaining polymeric solar cells having a higher open-circuit voltage. Particular electron-accepting units, e.g., a divalent fused-ring heterocyclic moiety selected from the group consisting of a substituted or unsubstituted benzothiadiazole, a substituted or unsubstituted quinoxaline, a substituted or unsubstituted benzobisthiazole, and a substituted or unsubstituted naphthothiadiazole, can be used to tune the electronic band gaps of the polymers for a better light harvesting ability. The disclosed copolymers exhibit field-effect mobilities as high as 0.011 cm2/(V s).
    Type: Application
    Filed: August 3, 2010
    Publication date: September 13, 2012
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Howard Edan Katz, Qingdong Zheng, Byung Jun Jung
  • Publication number: 20110163301
    Abstract: n-type organic semiconductors have a pyromellitic diimide structure and electronic or electro-optic devices include pyromellitic diimide compounds as organic semiconductors. Specific semiconductors include pyromellitic diimide compounds have sidechains comprising fluorine substituted aliphatic or aromatic moieties linked to the pyromellitic diimide structure by an alkylene or heteroalkylene linking group. An electronic or electro-optic device includes a first electrode, a second electrode space apart from the first electrode, and an organic semiconductor layer arranged between the first and second electrodes. The organic semiconductor layer comprises a pyromellitic diimide compound.
    Type: Application
    Filed: July 21, 2009
    Publication date: July 7, 2011
    Applicant: The Johns Hopkins University
    Inventors: Howard Edan Katz, Qingdong Zheng, Byung Jun Jung
  • Publication number: 20110024727
    Abstract: Hybrid semiconducting-dielectric materials and electronic or electro-optic devices using the hybrid semiconducting-dielectric materials. Hybrid semiconducting-dielectric materials comprise molecules that have a core section that provides an n-type semiconducting property and side chains that provide a dielectric property to a layer of hybrid semiconducting-dielectric material. Specific hybrid semiconducting-dielectric materials include tetracarboxylic diimide compounds having sidechains comprising fluorine substituted aliphatic or aromatic moieties linked to the tetracarboxylic diimide structure by an alkylene or heteroalkylene linking group.
    Type: Application
    Filed: January 7, 2009
    Publication date: February 3, 2011
    Applicant: The John Hopkins University
    Inventors: Howard Edan Katz, Bhola Nath Pal, Kevin Cua See, Byung Jun Jung
  • Publication number: 20100289019
    Abstract: A method for producing a spatially patterned structure includes forming a layer of a material on at least a portion of a substructure of the spatially patterned structure, forming a barrier layer of a fluorinated material on the layer of material to provide an intermediate structure, and exposing the intermediate structure to at least one of a second material or radiation to cause at least one of a chemical change or a structural change to at least a portion of the intermediate structure. The barrier layer substantially protects the layer of the material from chemical and structural changes during the exposing. Substructures are produced according to this method.
    Type: Application
    Filed: April 10, 2009
    Publication date: November 18, 2010
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Howard Edan Katz, Bal Mukund Dhar
  • Publication number: 20100283042
    Abstract: An electronic or electro-optic device has a first electrode, a second electrode spaced apart from the first electrode, and a dielectric layer disposed between the first and second electrodes. The dielectric layer has electrically insulating planar layers with intercalated ions therebetween such that the electrically insulating planar layers provide a barrier to impede movement of the intercalated ions to the first and second electrodes under an applied voltage while permitting a polarization of the dielectric layer while in operation.
    Type: Application
    Filed: January 7, 2009
    Publication date: November 11, 2010
    Applicant: Johns Hopkins University
    Inventors: Howard Edan Katz, Bhola Nath Pal, Kevin Cua See
  • Publication number: 20100244001
    Abstract: Featured is an organic/polymer diode having a first layer composed essentially of one of an organic semiconductor material or a polymeric semiconductor material and a second layer formed on the first layer and being electrically coupled to the first layer such that current flows through the layers in one direction when a voltage is applied in one direction. The second layer is essentially composed of a material whose characteristics and properties are such that when formed on the first layer, the diode is capable of high frequency rectifications on the order of megahertz rectifications such as for example rectifications at one of above 100 KHz, 500 KhZ, IMHz, or 10 MHz. In further embodiments, the layers are arranged so as to be exposed to atmosphere.
    Type: Application
    Filed: September 25, 2008
    Publication date: September 30, 2010
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Howard Edan Katz, Jia Sun, Nath Bhola Pal
  • Patent number: 7719003
    Abstract: Techniques for disposing an organic semiconductor film on a receiver substrate, comprising the steps of: depositing an organic semiconductor film onto a donor substrate, the semiconductor film having a first surface facing the donor substrate and having an exposed second surface; bringing the exposed second surface adjacent a receiver substrate such that the semiconductor film is in contact with both substrates; and then, moving the donor and receiver substrates apart; and wherein a surface portion of the receiver substrate is maintained above its glass transition during the moving step. Active organic semiconductor devices.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: May 18, 2010
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Howard Edan Katz, Masato Ofuji
  • Patent number: 7704784
    Abstract: Semiconductor apparatus comprising: a substrate having a substrate surface; a layer of a first material overlying a first region of the substrate surface; a layer of a semiconductor overlying the layer of first material and overlying a second region of the substrate surface; a first region of the layer of semiconductor, overlying the layer of first material and having a first conductivity; a second region of the layer of semiconductor, overlying the second region of the substrate surface and having a second conductivity; and the first conductivity being substantially different from the second conductivity. Such semiconductor apparatus further comprising a layer of a second material overlying the second region of the substrate surface, the second region of the layer of semiconductor overlying the layer of the second material.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: April 27, 2010
    Assignees: Lucent Technologies, Inc., E.I. du Pont de Nemours and Company
    Inventors: Zhenan Bao, Howard Edan Katz, Jeffrey Scott Meth