Patents Examined by Joshua L Allen
  • Patent number: 10487416
    Abstract: Electrochemical machining of parts employs electric or voltage pulses in which current flows in a first direction and a second direction opposite from the first direction. The cathodic/anodic pulses switch between bulk machining and oxide removal pushing bulk material removal into a homogenous regime to obtain a smooth surface finish and appropriate form control during the electrochemical machining process compared to electrochemical machining employing an electric or voltage potential in which current flows in only one direction.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: November 26, 2019
    Inventors: Andrew Lee Trimmer, John Cottrill, Douglas Lewis
  • Patent number: 10451583
    Abstract: The gas sensor is equipped with a sensor device, a plurality of electrode springs contacting with electrodes and of the sensor device, an insulator retaining the electrode springs, and a plurality of leads connected to the respective electrode springs. Each of the electrode springs includes a retained portion retained by the insulator and a contact portion which is bent and inclined from the retained portion toward a front end side of the sensor device in the lengthwise direction. The contact portion is elastically deformed in contact with the electrode. Each of the electrode springs also includes a bent portion between the contact portion and the retained portion. The bent portion constitutes a base end of the contact portion and is oriented toward the base end side of the gas sensor in the lengthwise direction, thereby enabling the length of the sensor device to be decreased and improving the heat resistance of the electrode springs.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: October 22, 2019
    Inventors: Hirofumi Noda, Hirokazu Yamada
  • Patent number: 10451584
    Abstract: Provided is a biomolecule measuring device capable of effectively reducing measurement noise occurring when measuring a biomolecule sample using a semiconductor sensor. This biomolecule measuring device generates a trigger to react a sample with a reagent after starting to send the reagent onto the semiconductor sensor that detects ion concentration (see FIG. 7).
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: October 22, 2019
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Yoshimitsu Yanagawa, Takahide Yokoi, Naoshi Itabashi, Takayuki Kawahara, Sonoko Migitaka, Makiko Yoshida, Takamichi Muramatsu
  • Patent number: 10429347
    Abstract: A method of determining a charge of at least one test particle (as herein defined), comprising: applying one of an electric current or a voltage across an aperture connecting two chambers, whereby the chambers are at least partially filled with electrolyte and whereby the at least one test particle is suspended in the electrolyte of at least one of the chambers; measuring a value indicative of the other of the electric current or voltage across the aperture; determining a time interval between a first and a second point in time, the second point in time corresponding to a point in time when the measured current or voltage has reached a specific proportion of the measured current or voltage at the first point in time; and determining the charge of the at least one test particle by: determining a value indicative of an electrical velocity component of a total velocity of at least one calibration particle having a known charge, taking into account that the total velocity of the at least one calibration particle
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: October 1, 2019
    Inventors: Benjamin Mark Glossop, Robert Vogel, Eva Weatherall, Martin David Jones
  • Patent number: 10415143
    Abstract: The present invention provides a method for the production in an electrochemical cell of one or more of graphene, graphite nanoplatelet structures having a thickness of less than 100 nm, and graphane, wherein the cell comprises: (a) a negative electrode which is graphitic; (b) a positive electrode which may be graphitic or another material; and (c) an electrolyte selected from (i) an ionic liquid; (ii) a deep eutectic solvent; and (iii) a solid ionic conductor, optionally further comprising (iv) one or more ionic species, wherein the amount of (i), (ii) or (iii) and (iv) is greater than 50 wt % based on the total weight of the electrolyte; and wherein the electrolyte includes a mixture of different cations; and wherein the method comprises the step of passing a current through the cell to intercalate ions into the graphitic negative electrode so as to exfoliate the graphitic negative electrode.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: September 17, 2019
    Assignee: The University of Manchester
    Inventors: Robert Angus William Dryfe, Ian Anthony Kinloch, Amr M. Abdelkader
  • Patent number: 10400344
    Abstract: Provided is an electrode assembly for electrolytic processing in an electrolysis cell comprising an electrode blade comprising a metallic hanger bar portion, a first lug for supporting the metallic hanger bar portion on a first power supply bar, an insulating piece connecting the metallic hanger bar portion to the first lug. The electrode assembly also comprises an electrical switch unit controlling electrical current supply between the first lug and the metallic hanger bar based on a control signal transmitted to a terminal of the electrical switch unit, a control unit configured to transmit the control signal to the terminal of the electrical switch unit, and a power storage unit configured to supply power to the control unit, the power storage unit being charged from the first lug and the hanger bar when the electrical switch unit switches off electrical current supply between the first lug and the metallic hanger bar.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: September 3, 2019
    Assignee: OUTOTEC (FINLAND) OY
    Inventors: Duncan Grant, Michael H. Barker, Henri K. Virtanen, Sönke Schmachtel, Ari Rantala, Lauri Nordlund
  • Patent number: 10379079
    Abstract: A semiconductor device, comprising a first field effect transistor (FET) connected in series to a second FET, and a third FET connected in series to the first FET and the second FET. The semiconductor device further includes bias circuitry coupled to the first FET and the second FET, and an output conductor coupled to a terminal of the second FET, wherein the output conductor obtains an output signal from the second FET that is independent of the first FET.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: August 13, 2019
    Inventor: Keith G. Fife
  • Patent number: 10330636
    Abstract: A gas sensor element including a composite ceramic layer including a plate-shaped insulating portion containing an insulating ceramic and having a through hole formed therein and a plate-shaped electrolyte portion containing a solid electrolyte ceramic and disposed in the through hole; and a first conductor layer extending continuously from a first insulating surface on one side of the insulating portion to a first electrolyte surface of the electrolyte portion facing the same direction as the one side of the insulating portion. The first insulating surface is flush with the first electrolyte surface. The electrolyte portion has, on its first electrolyte surface side, an extension portion extending outward from the through hole so as to overlap the first insulating surface. Further, the thickness of the extension portion decreases toward the outer circumference of the extension portion. Also disclosed is a method of manufacturing the gas sensor element.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: June 25, 2019
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventor: Ai Igarashi
  • Patent number: 10247698
    Abstract: A gas sensor element that includes a composite ceramic layer including a plate-shaped insulating portion which contains an insulating ceramic and has a through-hole, and an electrolyte portion which contains a solid electrolyte ceramic, and a portion disposed in the through-hole where the electrolyte portion is thicker than the insulating portion. A first conductor layer is formed over a first insulating surface of the insulating portion and a first electrolyte surface of the electrolyte portion. The electrolyte portion has an extending portion which is overlaid on the first insulating surface and extends toward the outside of the through-hole. The thickness of the extending portion is decreased toward an outer periphery of the extending portion, and the outer periphery of the extending portion is continuously connected to the first insulating surface. A first extending surface of the extending portion continuously connects the first insulating surface and the first electrolyte surface.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: April 2, 2019
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Ai Igarashi, Satoshi Okazaki
  • Patent number: 10228342
    Abstract: A gas sensor has a gas sensor element which has a solid electrolyte body, a reference electrode and a measuring electrode. The solid electrolyte body contains partially stabilized zirconia as a main component in which zirconia is stabilized by stabilizer agent. Particle boundary parts are formed between crystal particles made of the partially stabilized zirconia. The particle boundary parts are made of a metal element such as yttria derived from the stabilizer agent, an alumina component and a silica component. A total content of the alumina component and the silica component in the particle boundary parts in the solid electrolyte body is within a range of 0.01 mass % to 1 mass % in terms of oxide in the solid electrolyte body. A ratio of the alumina component to the silica component in the particle boundary parts 12 is within a range of 0.2 to 2.0 in terms of oxide.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: March 12, 2019
    Inventors: Kiyomi Kobayashi, Kazuki Yagi, Makoto Noguchi
  • Patent number: 10191009
    Abstract: Methods and sensing instruments are provided which perform automated electrochemical sensing and determination of metals in a liquid sample, such as drinking water or waste water. With use of microelectrode arrays, concentrations of metal are determined through a double potential step variation on anodic stripping coulometry, and the ability to generate these results provides for compact sensor networks that can be remotely deployed for determination of metals in samples, for real-time, decentralized sample monitoring.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: January 29, 2019
    Inventors: Mohamed M. Marei, Richard P. Baldwin, Thomas J. Roussel, Jr., Robert S. Keynton
  • Patent number: 10151037
    Abstract: Methods and systems for hydrogen production or production of a reduced target molecule are described, wherein a nicotinamide co-factor dependent membrane hydrogenase or a nicotinamide co-factor dependent membrane enzyme presented on a nanolipoprotein adsorbed onto an electrically conductive supporting structure, which can preferably be chemically inert, is contacted with protons or a target molecule to be reduced and nicotinamide cofactors in presence of an electric current and one or more electrically driven redox mediators.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: December 11, 2018
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Paul D. Hoeprich, Jr., Sangil Kim
  • Patent number: 10132776
    Abstract: A specified proton concentration in a volume (80) is produced by passing a controlled electrophoresis current through an adjacent electrophoresis volume (28) between a working electrode (26) and a counter electrode (24). An array of such volumes with specified proton concentration is used to provide the pH gradient for isoelectric focusing.
    Type: Grant
    Filed: February 28, 2016
    Date of Patent: November 20, 2018
    Assignee: Technion Research & Development Foundation Limited
    Inventors: Uri Sivan, Elad Brod
  • Patent number: 10113988
    Abstract: Provided is a gas sensor free from an unbonded space being in communication with an internal space. A gas sensor, which includes a sensor element including a plurality of layers that are bonded and formed of an oxygen-ion conductive solid electrolyte and which reduces a predetermined gas component of a measurement gas to identify a concentration of the gas component on the basis of a current flowing through the solid electrolyte, includes an internal space in which a measurement gas having the ability to reduce the gas component is provided. Of the plurality of layers, an interlaminar bonding layer, which bonds a layer forming a bottom surface of the internal space and a layer forming a side surface of the internal space, projects into the internal space.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: October 30, 2018
    Assignee: NGK INSULATORS, LTD.
    Inventors: Naoya Saito, Takayuki Sekiya, Takeshi Omori, Sumiko Horisaka
  • Patent number: 10081015
    Abstract: A device for trapping at least one microparticle in a fluid flow is suggested. The device comprises a trapping element and an electrode. The trapping element is configured for trapping the at least one microparticle and has at least one recess for receiving the at least one microparticle. The electrode is configured for generating an asymmetric electric field. In operation, at least one microparticle of a plurality of microparticles passing through the asymmetric electric field is forced into the at least one recess of the trapping element.
    Type: Grant
    Filed: July 12, 2015
    Date of Patent: September 25, 2018
    Assignee: International Business Machines Corporation
    Inventors: Jaione Tirapu Azpiroz, Emmanuel Delamarche, Claudius Feger, Yuksel Temiz
  • Patent number: 10036721
    Abstract: A method is described for operating a sensor element for detecting at least one concentration of a gas in a measuring gas chamber. The sensor element includes at least one pump cell having at least two pump electrodes connected to each other by at least one solid electrolyte. At least one measuring variable is detected in the method, and at least one compensating variable is determined. The compensating variable is at least partially dependent on capacitive effects on at least one junction between at least one of pump electrodes and the solid electrolyte. At least one corrected measuring variable is determined from the measuring variable and the compensating variable. The concentration of the gas in the measuring gas chamber is determined from the corrected measuring variable.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: July 31, 2018
    Inventors: Goetz Reinhardt, Hartwig Lehle, Bernhard Ledermann
  • Patent number: 10024831
    Abstract: A gas sensor for measuring a concentration of carbon dioxide in a gas environment (GE) is provided. The gas sensor includes a graphene layer having a side facing towards the gas environment (GE), an electrode layer including a plurality of electrodes electrically connected to the graphene layer, and a chalcogenide layer covering at least a part of the side of the graphene layer facing towards the gas environment (GE).
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: July 17, 2018
    Assignee: Infineon Technologies AG
    Inventors: Guenther Ruhl, Thomas Hirsch, Alexander Zoepfl
  • Patent number: 9982359
    Abstract: A surface treatment method includes: roughening a surface region of a substrate corresponding to a through hole provided to a masking plate by supplying a solvent to a solid electrolyte film from a second surface of a masking plate through the through hole, in a state where: a first surface of the solid electrolyte film is arranged directly on the surface of the substrate; and a first surface of the masking plate is arranged directly on a second surface of the solid electrolyte film, wherein the supplied solvent penetrates the solid electrolyte film, and dissolves the surface of the substrate.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: May 29, 2018
    Inventors: Yuki Sato, Motoki Hiraoka, Hiroshi Yanagimoto
  • Patent number: 9970121
    Abstract: A composite material includes a metal material having conductivity and an oxidation inhibitor mixed with the metal material. The oxidation inhibitor forms a complex with the metal material to exert a resistance to oxidation of the metal material. For example, the composite material is formed on a surface of a base material as a plating material. As another example, the composite material is plated on a surface of an electrode.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: May 15, 2018
    Inventors: Kenji Ochi, Toshihiro Miyake, Yasuo Ishihara
  • Patent number: 9943920
    Abstract: A method for electro-chemical machining (ECM) is provided. Methods may include providing an ECM machine including a controller and a fixture configured for positioning an electrode for ECM, positioning the fixture in a selected dovetail slot of a plurality of dovetail slots in a turbine wheel, the turbine wheel being positioned in-situ in a turbomachine, the fixture positioning the electrode for ECM of a portion of the selected dovetail slot, applying an electrolyte solution between the selected dovetail slot and the electrode, and removing material from the portion of the selected dovetail slot by applying an electric potential to the electrode to create a potential gradient between the electrode and the portion of the selected dovetail slot. The machining may be repeated for each dovetail slot of the turbine wheel in-situ in the turbomachine.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: April 17, 2018
    Assignee: General Electric Company
    Inventors: Daryl Paul Capriotti, John William Herbold, James Bradford Holmes, Michael Alan Smith, Andrew Lee Trimmer