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).
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Publication number: 20080197347Abstract: 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: ApplicationFiled: December 19, 2007Publication date: August 21, 2008Applicant: Lucent Technologies, Inc.Inventors: Howard Edan Katz, Masato Ofuji
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Patent number: 7385220Abstract: Fibers having an electrically conductive outer surface and having an average diameter of less than about 5 millimeters; and a dielectric polymeric layer comprising a polymer having a main polymer chain on the outer surface, the dielectric polymeric layer having a thickness of less than about 50 microns, the main polymer chain comprising carbon. Fiber transistors having an on/off ratio of at least about 10. Techniques for making fibers and fiber transistors.Type: GrantFiled: April 12, 2004Date of Patent: June 10, 2008Assignee: Lucent Technologies Inc.Inventors: Jimmy Granstrom, Howard Edan Katz
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Patent number: 7371605Abstract: 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: GrantFiled: March 31, 2005Date of Patent: May 13, 2008Assignee: Lucent Technologies Inc.Inventors: Howard Edan Katz, Masato Ofuji
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Patent number: 7122828Abstract: 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: GrantFiled: September 24, 2003Date of Patent: October 17, 2006Assignees: Lucent Technologies, Inc., E.I. du Pont de Nemours and CompanyInventors: Zhenan Bao, Howard Edan Katz, Jeffrey Scott Meth
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Patent number: 7045470Abstract: Apparatus comprising: a first substrate; a dielectric layer comprising a first dielectric material on the first substrate, the dielectric layer having a dielectric layer thickness and being traversed by through holes passing from an interface with the first substrate, to an opposite side of the dielectric layer; and a second dielectric material at least partially blocking the through holes. Methods for making such apparatus.Type: GrantFiled: November 4, 2003Date of Patent: May 16, 2006Assignee: Lucent Technologies Inc.Inventors: Zhenan Bao, Howard Edan Katz
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Patent number: 6939648Abstract: The optical article of the invention, e.g., holographic recording medium or polymeric waveguide, is formed by mixing a matrix precursor and a photoactive monomer, and curing the mixture to form the matrix in situ. The reaction by which the matrix precursor is polymerized during the cure is independent from the reaction by which the photoactive monomer is polymerized during writing of data. In addition, the matrix polymer and the polymer resulting from polymerization of the photoactive monomer are compatible with each other. Use of a matrix precursor and photoactive monomer that polymerize by independent reactions substantially prevents cross-reaction between the photoactive monomer and the matrix precursor during the cure and inhibition of subsequent monomer polymerization. Use of a matrix precursor and photoactive monomer that result in compatible polymers substantially avoids phase separation. And in situ formation allows fabrication of articles with desirable thicknesses.Type: GrantFiled: April 3, 2002Date of Patent: September 6, 2005Assignee: InPhase TechnologiesInventors: Lisa Dhar, Arturo Hale, Howard Edan Katz, Marcia Lea Schilling, Melinda Lamont Schnoes
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Patent number: 6885024Abstract: A method fabricates ICs in which organic semiconductor crystallites serve as active channels of semiconductor devices. The method includes providing a substrate with a surface that has a preselected pattern of adhesion sites located thereon. The adhesion sites are prepared to adhere crystallites of an organic semiconductor. The method also includes applying a plurality of crystallites of the organic semiconductor to the surface to enable a portion of the applied crystallites to adhere at the prepared adhesion sites.Type: GrantFiled: September 27, 2002Date of Patent: April 26, 2005Assignee: Lucent Technologies Inc.Inventors: Zhenan Bao, Howard Edan Katz, Christian Kloc
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Patent number: 6819808Abstract: A method includes transmitting a sequence of wavefronts of the optical carrier wave having a first wavelength to an optical waveguide and transmitting a control wave having a second wavelength to a control waveguide. The control wave electro-optically modulates velocities of the wavefronts in the optical waveguide. A dielectric cladding adjacent the optical waveguide has a refractive index at the second wavelength that is larger than the refractive index in the optical waveguide at the first wavelength.Type: GrantFiled: January 22, 2004Date of Patent: November 16, 2004Assignee: Lucent Technologies Inc.Inventors: Christoph Georg Erben, Douglas M Gill, Howard Edan Katz, Mark Lee
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Publication number: 20040151415Abstract: An electro-optical modulator includes an optical waveguide for carrying an optical carrier wave and a control waveguide for carrying a control wave. The optical waveguide includes a cladding layer and a core. The two waveguides are collinear and overlap in an interaction region so that the refractive index of the optical waveguide responds to electric fields generated by the control wave in the interaction region. The refractive index of the cladding layer at the control wave's wavelength is higher than the refractive index of the core at the optical carrier wave's wavelength.Type: ApplicationFiled: January 22, 2004Publication date: August 5, 2004Inventors: Christoph Georg Erben, Douglas M. Gill, Howard Edan Katz, Mark Lee
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Publication number: 20040120673Abstract: In accordance with the invention, an optical waveguide device having a polished polymer end facet for low loss optical coupling is made by the steps of providing a polymer optical waveguide workpiece comprising a substrate and an overlying waveguiding structure formed of one or more layers of polymer softer than the material of the substrate. A cover layer of a material harder than the polymer is then secured overlying the polymer layers, and one or more polymer end facets are polished. The cover layer and the substrate guide the polishing so that the resulting facets have a flat, smooth surface.Type: ApplicationFiled: December 19, 2002Publication date: June 24, 2004Applicant: LUCENT TECHNOLOGIESInventors: Christoph Georg Erben, Howard Edan Katz, David J. McGee, Mark Lee
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Publication number: 20040061104Abstract: A method fabricates ICs in which organic semiconductor crystallites serve as active channels of semiconductor devices. The method includes providing a substrate with a surface that has a preselected pattern of adhesion sites located thereon. The adhesion sites are prepared to adhere crystallites of an organic semiconductor. The method also includes applying a plurality of crystallites of the organic semiconductor to the surface to enable a portion of the applied crystallites to adhere at the prepared adhesion sites.Type: ApplicationFiled: September 27, 2002Publication date: April 1, 2004Inventors: Zhenan Bao, Howard Edan Katz, Christian Kloc
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Patent number: 6711308Abstract: An electro-optical modulator includes an optical waveguide for carrying an optical carrier wave and a control waveguide for carrying a control wave. The optical waveguide includes a cladding layer and a core. The two waveguides are collinear and overlap in an interaction region so that the refractive index of the optical waveguide responds to electric fields generated by the control wave in the interaction region. The refractive index of the cladding layer at the control wave's wavelength is higher than the refractive index of the core at the optical carrier wave's wavelength.Type: GrantFiled: December 26, 2001Date of Patent: March 23, 2004Assignee: Lucent Technologies Inc.Inventors: Christoph Georg Erben, Douglas M Gill, Howard Edan Katz, Mark Lee
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Patent number: 6661299Abstract: Circuits include at least one-odor sensitive organic transistor having a conduction channel whose conductivity changes in response to certain odors. The organic transistors are interconnected to increase their response to selected odor signals. The organic transistors may be interconnected to form a ring oscillator whose frequency of oscillation changes in response to an odor signal and in which the alternating signal applied to the gate electrodes of the organic transistors enhances their recovery and reduces their drift.Type: GrantFiled: February 26, 2001Date of Patent: December 9, 2003Assignee: Lucent Technologies Inc.Inventors: Ananth Dodabalapur, Alan Gelperin, Howard Edan Katz
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Publication number: 20030165282Abstract: An electro-optical modulator includes an optical waveguide for carrying an optical carrier wave and a control waveguide for carrying a control wave. The optical waveguide includes a cladding layer and a core. The two waveguides are collinear and overlap in an interaction region so that the refractive index of the optical waveguide responds to electric fields generated by the control wave in the interaction region. The refractive index of the cladding layer at the control wave's wavelength is higher than the refractive index of the core at the optical carrier wave's wavelength.Type: ApplicationFiled: December 26, 2001Publication date: September 4, 2003Inventors: Christoph Georg Erben, Douglas M. Gill, Howard Edan Katz, Mark Lee
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Patent number: 6575013Abstract: An electronic odor sensor includes first and second amplifiers, a biasing network, and a device connected to receive the output signals from the first and second amplifiers. The device is configured to correlate the received output signals to the presence or absence of an odor. The first and second amplifiers have respective first and second organic semiconductor layers and are configured to produce output signals responsive to the conductivities of their respective organic semiconductor layers. The conductivities of the organic semiconductor layers are responsive to voltages applied to associated ones of the amplifiers and to the presence of the odor. The biasing network applies the voltages to the amplifiers.Type: GrantFiled: February 26, 2001Date of Patent: June 10, 2003Assignee: Lucent Technologies Inc.Inventors: Zhenan Bao, Brian Keith Crone, Ananth Dodabalapur, Alan Gelperin, Howard Edan Katz
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Patent number: 6551717Abstract: An organic semiconductor film is fabricated by applying a solution containing an organic semiconductor material and a solvent to a substrate, e.g., by solution casting, and evaporating the solvent. The characteristics of the substrate surface, the organic semiconductor material, and the process parameters are selected to provide desirable nucleation and crystal growth. The resultant organic semiconductor film contains a large area, e.g., a continuous area greater than 1 cm2, that exhibits a relatively high charge carrier mobility of at least about 10−4 cm2V−1s−1 room temperature.Type: GrantFiled: April 16, 2001Date of Patent: April 22, 2003Assignee: Lucent Technologies Inc.Inventors: Howard Edan Katz, Wenjie Li
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Patent number: 6482551Abstract: The optical article of the invention, e.g., holographic recording medium or polymeric waveguide, is formed by mixing a matrix precursor and a photoactive monomer, and curing the mixture to form the matrix in situ. The reaction by which the matrix precursor is polymerized during the cure is independent from the reaction by which the photoactive monomer is polymerized during writing of data. In addition, the matrix polymer and the polymer resulting from polymerization of the photoactive monomer are compatible with each other. Use of a matrix precursor and photoactive monomer that polymerize by independent reactions substantially prevents cross-reaction between the photoactive monomer and the matrix precursor during the cure and inhibition of subsequent monomer polymerization. Use of a matrix precursor and photoactive monomer that result in compatible polymers substantially avoids phase separation. And in situ formation allows fabrication of articles with desirable thicknesses.Type: GrantFiled: December 9, 1998Date of Patent: November 19, 2002Assignee: InPhase TechnologiesInventors: Lisa Dhar, Arturo Hale, Howard Edan Katz, Marcia Lea Schilling, Melinda Lamont Schnoes
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Publication number: 20020142227Abstract: The optical article of the invention, e.g., holographic recording medium or polymeric waveguide, is formed by mixing a matrix precursor and a photoactive monomer, and curing the mixture to form the matrix in situ. The reaction by which the matrix precursor is polymerized during the cure is independent from the reaction by which the photoactive monomer is polymerized during writing of data. In addition, the matrix polymer and the polymer resulting from polymerization of the photoactive monomer are compatible with each other. Use of a matrix precursor and photoactive monomer that polymerize by independent reactions substantially prevents cross-reaction between the photoactive monomer and the matrix precursor during the cure and inhibition of subsequent monomer polymerization. Use of a matrix precursor and photoactive monomer that result in compatible polymers substantially avoids phase separation. And in situ formation allows fabrication of articles with desirable thicknesses.Type: ApplicationFiled: April 3, 2002Publication date: October 3, 2002Inventors: Lisa Dhar, Arturo Hale, Howard Edan Katz, Marcia Lea Schilling, Melinda Lamont Schnoes
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Publication number: 20020117693Abstract: Circuits include at least one-odor sensitive organic transistor having a conduction channel whose conductivity changes in response to certain odors. The organic transistors are interconnected to increase their response to selected odor signals. The organic transistors may be interconnected to form a ring oscillator whose frequency of oscillation changes in response to an odor signal and in which the alternating signal applied to the gate electrodes of the organic transistors enhances their recovery and reduces their drift.Type: ApplicationFiled: February 26, 2001Publication date: August 29, 2002Inventors: Ananth Dodabalapur, Alan Gelperin, Howard Edan Katz
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Publication number: 20020116983Abstract: An electronic odor sensor includes first and second amplifiers, a biasing network, and a device connected to receive the output signals from the first and second amplifiers. The device is configured to correlate the received output signals to the presence or absence of an odor. The first and second amplifiers have respective first and second organic semiconductor layers and are configured to produce output signals responsive to the conductivities of their respective organic semiconductor layers. The conductivities of the organic semiconductor layers are responsive to voltages applied to associated ones of the amplifiers and to the presence of the odor. The biasing network applies the voltages to the amplifiers.Type: ApplicationFiled: February 26, 2001Publication date: August 29, 2002Inventors: Zhenan Bao, Brian Keith Crone, Ananth Dodabalapur, Alan Gelperin, Howard Edan katz