Patents by Inventor Brent M. Segal

Brent M. Segal 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: 10096363
    Abstract: Nanotube films and articles and methods of making the same are disclosed. A conductive article or a substrate comprises at least two unaligned nanotubes extending substantially parallel to the substrate and each contacting end points of the article but each unaligned relative to the other, the nanotubes providing a conductive pathway within a predefined space.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: October 9, 2018
    Assignee: Nantero, Inc.
    Inventors: Thomas Rueckes, Brent M. Segal
  • Publication number: 20160232972
    Abstract: Nanotube films and articles and methods of making the same are disclosed. A conductive article or a substrate comprises at least two unaligned nanotubes extending substantially parallel to the substrate and each contacting end points of the article but each unaligned relative to the other, the nanotubes providing a conductive pathway within a predefined space.
    Type: Application
    Filed: January 25, 2016
    Publication date: August 11, 2016
    Inventors: Thomas Rueckes, Brent M. Segal
  • Patent number: 9123607
    Abstract: An apparatus for infrared imaging may include a hybrid infrared focal plane array including a front-end (FE) portion and a back-end (BE) portion. The FE portion may be coupled to the BE portion via multiple electrically conductive bump bonds. The FE portion may include nano-electronic circuits integrated with an array of infrared imaging pixels. The CNT electronic circuits may be configured to generate multiplexed output signals. The BE portion may include electronic circuits implemented on a substrate and configured to generate readout output signals. A count of the multiple electrically conductive bump bonds may be substantially less than a count of the infrared imaging pixels of the array.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: September 1, 2015
    Assignee: LOCKHEED MARTIN CORPORATION
    Inventors: Ryan Michael Hatcher, Brent M. Segal, Robert Chris Bowen, Jonathan Wesley Ward
  • Patent number: 8937575
    Abstract: A nanotube based microstrip antenna element is provided along with arrays of same. The nanotube based microstrip antenna element comprises a dielectric substrate layer sandwiched between a ground plane layer and a conductive nanotube layer, the conductive nanotube layer shaped to form a radiating structure. In more advanced embodiments, the nanotube based microstrip antenna element further includes an integrated two terminal nanotube switch device such as to provide a selectability function to such microstrip antenna elements and reconfigurable arrays of same. Anisotropic nanotube fabric layers are also used to provide substantially transparent microstrip antenna structures which can be deposited over display screens and the like.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: January 20, 2015
    Assignee: Nantero Inc.
    Inventors: Jonathan W. Ward, Robert F. Smith, Brent M. Segal
  • Patent number: 8816706
    Abstract: Methods for using carbon nanomaterials to alter the operational output of a device are described herein. The methods can include providing a device that contains a carbon nanomaterial in a first state, and applying an input stimulus to the carbon nanomaterial so as to change the first state into a second state. In the first state, the carbon nanomaterial can be used to produce a normal operational output of the device, whereas the device can produce an altered operational output when the carbon nanomaterial is in the second state. When producing an altered operational output, the device can continue operating, but the altered operational output can be non-indicative of the true operational state of the device. Devices containing a carbon nanomaterial that can be reconfigured from a normal operational output to an altered operational output are also described herein.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: August 26, 2014
    Assignee: Lockheed Martin Corporation
    Inventors: Jonathan W. Ward, Brent M. Segal, Elwood J. Egerton
  • Patent number: 8771628
    Abstract: Certain applicator liquids and method of making the applicator liquids are described. The applicator liquids can be used to form nanotube films or fabrics of controlled properties. An applicator liquid for preparation of a nanotube film or fabric includes a controlled concentration of nanotubes dispersed in a liquid medium containing water. The controlled concentration is sufficient to form a nanotube fabric or film of preselected density and uniformity.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: July 8, 2014
    Assignee: Nantero Inc.
    Inventors: Ramesh Sivarajan, Thomas Rueckes, Rahul Sen, Brent M. Segal, Eliodor G. Ghenciu, Jonathan W. Ward, Tzong-Ru T. Han
  • Patent number: 8699268
    Abstract: Field effect devices having a drain controlled via a nanotube switching element. Under one embodiment, a field effect device includes a source region and a drain region of a first semiconductor type and a channel region disposed therebetween of a second semiconductor type. The source region is connected to a corresponding terminal. A gate structure is disposed over the channel region and connected to a corresponding terminal. A nanotube switching element is responsive to a first control terminal and a second control terminal and is electrically positioned in series between the drain region and a terminal corresponding to the drain region. The nanotube switching element is electromechanically operable to one of an open and closed state to thereby open or close an electrical communication path between the drain region and its corresponding terminal.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: April 15, 2014
    Assignee: Nantero Inc.
    Inventors: Claude L. Bertin, Thomas Rueckes, Brent M. Segal
  • Patent number: 8659940
    Abstract: Physical neural networks based nanotechnology include dendrite circuits that comprise non-volatile nanotube switches. A first terminal of the non-volatile nanotube switches is able to receive an electrical signal and a second terminal of the non-volatile nanotube switches is coupled to a common node that sums any electrical signals at the first terminals of the nanotube switches. The neural networks further includes transfer circuits to propagate the electrical signal, synapse circuits, and axon circuits.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: February 25, 2014
    Assignee: Nantero Inc.
    Inventors: Claude L. Bertin, Brent M. Segal, Darren K. Brock
  • Patent number: 8631562
    Abstract: An electrostatic discharge (ESD) protection circuit for protecting a protected circuit is coupled to an input pad. The ESD circuit includes a nanotube switch electrically having a control. The switch is coupled to the protected circuit and to a discharge path. The nanotube switch is controllable, in response to electrical stimulation of the control, between a de-activated state and an activated state. The activated state creates a current path so that a signal on the input pad flows to the discharge path to cause the signal at the input pad to remain within a predefined operable range for the protected circuit. The nanotube switch, the input pad, and the protected circuit may be on a semiconductor chip. The nanotube switch may be on a chip carrier. The deactivated and activated states may be volatile or non-volatile depending on the embodiment.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: January 21, 2014
    Assignee: Nantero Inc.
    Inventors: Claude L. Bertin, Brent M. Segal, Thomas Rueckes, Jonathan W. Ward
  • Patent number: 8628692
    Abstract: Certain spin-coatable liquids and application techniques are described, which can be used to form nanotube films or fabrics of controlled properties. A spin-coatable liquid for formation of a nanotube film includes a liquid medium containing a controlled concentration of purified nanotubes, wherein the controlled concentration is sufficient to form a nanotube fabric or film of preselected density and uniformity, and wherein the spin-coatable liquid comprises less than 1×1018 atoms/cm3 of metal impurities. The spin-coatable liquid is substantially free of particle impurities having a diameter of greater than about 500 nm.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: January 14, 2014
    Assignee: Nantero Inc.
    Inventors: Rahul Sen, Ramesh Sivarajan, Thomas Rueckes, Brent M. Segal
  • Patent number: 8630091
    Abstract: Under one aspect, a method of cooling a circuit element includes providing a thermal reservoir having a temperature lower than an operating temperature of the circuit element; and providing a nanotube article in thermal contact with the circuit element and with the reservoir, the nanotube article including a non-woven fabric of nanotubes in contact with other nanotubes to define a plurality of thermal pathways along the article, the nanotube article having a nanotube density and a shape selected such that the nanotube article is capable of transferring heat from the circuit element to the thermal reservoir.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: January 14, 2014
    Assignee: Nantero Inc.
    Inventors: Jonathan W. Ward, Claude L. Bertin, Brent M. Segal
  • Patent number: 8525143
    Abstract: Methods and systems of using nanotube elements as joule heating elements for memories and other applications. Under one aspect, a method includes providing an electrical stimulus, regulated by a drive circuit, through a nanotube element in order to heat an adjacent article. Further, a detection circuit electrically gauges the state of the article. The article heated by the nanotube element is, in preferred embodiments, a phase changing material, hi memory applications, the invention may be used as a small-scale CRAM capable of employing small amounts of current to induce rapid, large temperature changes in a chalcogenide material. Under various embodiments of the disclosed invention, the nanotube element is composed of a non-woven nanotube fabric which is either suspended from supports and positioned adjacent to the phase change material or is disposed on a substrate and in direct contact with the phase change material.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: September 3, 2013
    Assignee: Nantero Inc.
    Inventors: Jonathan W. Ward, Thomas Rueckes, Mitchell Meinhold, Brent M. Segal
  • Patent number: 8471238
    Abstract: Light emitters using nanotubes and methods of making same. A light emitter includes a nanotube article in electrical communication with a first and a second contact, a substrate having a predefined region with a relatively low thermal conductivity said region in predefined physical relation to said nanotube article; and a stimulus circuit in electrical communication with the first and second contacts. The stimulus circuit provides electrical stimulation sufficient to induce light emission from the nanotube article in the proximity of the predefined region. The predefined region is a channel formed in the substrate or a region of material with relatively low thermal conductivity. The light emitter can be integrated with semiconductor circuits including CMOS circuits. The light emitter can be integrated into optical driver circuits (on- and off-chip drivers) and opto-isolators.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: June 25, 2013
    Assignee: Nantero Inc.
    Inventors: Jonathan W. Ward, Mitchell Meinhold, Claude L. Bertin, Benjamin Schlatka, Brent M. Segal, Thomas Ruckes
  • Patent number: 8400053
    Abstract: Carbon Nanotube Films, Layers, Fabrics, Ribbons, Elements and Articles are disclosed. To make various articles, certain embodiments provide a substrate. Preformed nanotubes are applied to a surface of the substrate to create a non-woven fabric of carbon nanotubes. Portions of the non-woven fabric are selectively removed according to a defined pattern to create the article. To make a nanofabric, a substrate is provided. Preformed nanotubes are applied to a surface of the substrate to create a non-woven fabric of carbon nanotubes wherein the non-woven fabric is substantially uniform density. The nanofabrics and articles have characteristics desirable for various electrical systems such as memory circuits and conductive traces and pads.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: March 19, 2013
    Assignee: Nantero Inc.
    Inventors: Jonathan W. Ward, Thomas Rueckes, Brent M. Segal
  • Patent number: 8366999
    Abstract: Under one aspect, a system (100) for sensing the presense of an analyte in a fluid includes a nanotube sensor element including a plurality of nanotubes and positioned for exposure to a fluid; an optical source capable of generating optical radiation (102), the radiation having a source frequency and a fluence selected to generate a nonlinear optical response by the nanotube sensor element; an optical detector (110) capable of measuring the nonlinear optical response by the nanotube sensor element; and logic in electrical communications with the optical detector to sense the presense of an analyte in the fluid based on the nonlinear optical response measured by the optical detector.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: February 5, 2013
    Assignee: Nantero Inc.
    Inventors: Jonathan W. Ward, Brent M. Segal
  • Patent number: 8357559
    Abstract: Sensor platforms and methods of making them are described. A platform having a non-horizontally oriented sensor element comprising one or more nanostructures such as nanotubes is described. Under certain embodiments, a sensor element has or is made to have an affinity for an analyte. Under certain embodiments, such a sensor element comprises one or more pristine nanotubes. Under certain embodiments, the sensor element comprises derivatized or functionalized nanotubes. Under certain embodiments, a sensor is made by providing a support structure; providing one or more nanotubes on the structure to provide material for a sensor element; and providing circuitry to electrically sense the sensor element's electrical characterization. Under certain embodiments, the sensor element comprises pre-derivatized or pre-functionalized nanotubes. Under other embodiments, sensor material is derivatized or functionalized after provision on the structure or after patterning.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: January 22, 2013
    Assignee: Nantero Inc.
    Inventors: Brent M. Segal, Thomas Rueckes, Bernhard Vogeli, Darren K. Brock, Venkatachalam C. Jaiprakash, Claude L. Bertin
  • Publication number: 20130009109
    Abstract: Certain spin-coatable liquids and application techniques are described, which can be used to form nanotube films or fabrics of controlled properties. A spin-coatable liquid for formation of a nanotube film includes a liquid medium containing a controlled concentration of purified nanotubes, wherein the controlled concentration is sufficient to form a nanotube fabric or film of preselected density and uniformity, and wherein the spin-coatable liquid comprises less than 1×1018 atoms/cm3 of metal impurities. The spin-coatable liquid is substantially free of particle impurities having a diameter of greater than about 500 nm.
    Type: Application
    Filed: May 25, 2012
    Publication date: January 10, 2013
    Applicant: Nantero Inc.
    Inventors: Rahul SEN, Ramesh SIVARAJAN, Thomas RUECKES, Brent M. SEGAL
  • Publication number: 20120301360
    Abstract: Devices used in conjunction with detecting analytes and methods of their manufacture are disclosed. A pre-concentrator device includes a thermoelectric material and an aerogel which includes a nanostructured material disposed on, and in thermal communication with, the thermoelectric material. Such a pre-concentrator is part of a detection system including a sensor. The detection system is used in a method for detecting analytes.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 29, 2012
    Applicant: LOCKHEED MARTIN CORPORATION
    Inventors: Mitchell W. MEINHOLD, Andrew A. GUZELIAN, Robert A. ROUFAIL, Brent M. SEGAL, James M. SPATCHER, Aaron G. SELL, Eric C. HOLIHAN, Jonathan A. NICHOLS
  • Patent number: 8310015
    Abstract: Sensor platforms and methods of making them are described, and include platforms having horizontally oriented sensor elements comprising nanotubes or other nanostructures, such as nanowires. Under certain embodiments, a sensor element has an affinity for an analyte. Under certain embodiments, such a sensor element comprises one or more pristine nanotubes, and, under certain embodiments, it comprises derivatized or functionalized nanotubes. Under certain embodiments, a sensor is made by providing a support structure; providing a collection of nanotubes on the structure; defining a pattern within the nanotube collection; removing part of the collection so that a patterned collection remains to form a sensor element; and providing circuitry to electrically sense the sensor's electrical characterization. Under certain embodiments, the sensor element comprises pre-derivatized or pre-functionalized nanotubes.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: November 13, 2012
    Assignee: Nantero Inc.
    Inventors: Brent M. Segal, Thomas Rueckes, Bernhard Vogeli, Darren K. Brock, Venkatachalam C. Jaiprakash, Claude L. Bertin
  • Publication number: 20120181621
    Abstract: Field effect devices having a drain controlled via a nanotube switching element. Under one embodiment, a field effect device includes a source region and a drain region of a first semiconductor type and a channel region disposed therebetween of a second semiconductor type. The source region is connected to a corresponding terminal. A gate structure is disposed over the channel region and connected to a corresponding terminal. A nanotube switching element is responsive to a first control terminal and a second control terminal and is electrically positioned in series between the drain region and a terminal corresponding to the drain region. The nanotube switching element is electromechanically operable to one of an open and closed state to thereby open or close an electrical communication path between the drain region and its corresponding terminal.
    Type: Application
    Filed: October 5, 2007
    Publication date: July 19, 2012
    Inventors: Claude L. Bertin, Thomas Rueckes, Brent M. Segal