Three Or More Electrodes Patents (Class 204/412)
  • Patent number: 11307163
    Abstract: A carbon nanotube-based reference electrode and an all-carbon nanotube microelectrode assembly for electrochemical sensing and specialized analytics are disclosed, along with methods of manufacture, and applications including detection of ionic species including heavy metals in municipal and environmental water, monitoring of steel corrosion in steel-reinforced concrete, and analysis of biological fluids.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: April 19, 2022
    Assignee: University of Cincinnati
    Inventors: Noe Alvarez, Daoli Zhao, I, William Heineman, Vesselin Shanov, David Siebold
  • Patent number: 11307167
    Abstract: Example systems, apparatuses and methods are disclosed for measuring electrolyte content in an electrochemical gas sensor. An example system may comprise a separator material, a first electrode configured to be disposed on a first separator material surface, and a second electrode configured to be disposed on a second separator material surface. The example system may further comprise a wick material comprising a first wick material surface and a second wick material surface opposite the first wick material surface, a third electrode configured to be disposed facing the first wick material surface, and a fourth electrode configured to be disposed on the second wick material surface. The fourth electrode may be configured to measure an electrical conductivity through the wick material.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: April 19, 2022
    Assignee: Honeywell International Inc.
    Inventor: Keith Francis Edwin Pratt
  • Patent number: 11268927
    Abstract: An electrochemical sensor is provided which may be formed using micromachining techniques commonly used in the manufacture of integrated circuits. This is achieved by forming microcapillaries in a silicon substrate and forming an opening in an insulating layer to allow environmental gases to reach through to the top side of the substrate. A porous electrode is printed on the top side of the insulating layer such that the electrode is formed in the opening in the insulating layer. The sensor also comprises at least one additional electrode. The electrolyte is then formed on top of the electrodes. A cap is formed over the electrodes and electrolyte. This arrangement may easily be produced using micromachining techniques.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: March 8, 2022
    Assignee: Analog Devices International Unlimited Company
    Inventors: Alfonso Berduque, Helen Berney, William Allan Lane, Raymond J. Speer, Brendan Cawley, Donal McAuliffe, Patrick Martin McGuinness
  • Patent number: 11231380
    Abstract: A fluid-property detection device includes a housing attached to the external device, the housing being configured to hold the outer electrode and the inner electrode, an outer insulating member provided between the housing and the outer electrode, the outer insulating member being configured to insulate between the housing and the outer electrode, and an inner insulating member provided between the outer electrode and the inner electrode, the inner insulating member being configured to insulate between the outer electrode and the inner electrode, being configured to insulate between the housing and the inner electrode. The outer electrode and the inner electrode respectively have tip end portions, the tip end portions projecting out from the housing and being configured to expose to the detection target fluid contained in the external device.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: January 25, 2022
    Assignee: KYB CORPORATION
    Inventors: Yukinori Kameda, Takahiro Yoshida
  • Patent number: 11187668
    Abstract: The present disclosure includes to a sensor element including a membrane having a first functionalized region and a second functionalized region and including a sensor element body on which the membrane rests. The sensor element body has at least one electrically conductive first conductor and an electrically conductive second conductor electrically insulated from the first conductor. The first conductor is electrically and/or electrolytically conductively connected to the first functionalized region of the membrane, and the second conductor is electrically and/or electrolytically conductively connected to the second functionalized region of the membrane. In another aspect of the present disclosure, a method for fabricating such a sensor element is disclosed.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: November 30, 2021
    Assignee: Endress+Hauser Conducta GmbH+Co. KG
    Inventors: Thomas Wilhelm, Matthäus Speck
  • Patent number: 11186724
    Abstract: Compositions containing diamond particles for producing reflective coatings and methods of wet and dry application of diamond particles to substrates to produce reflective coatings. The coatings have a desirable appearance, are robust and easy to apply.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: November 30, 2021
    Assignee: SUN KING DIAMONDS LTD
    Inventors: Jean-Raymond Boulle, Michael Angenent, Michael Theobald
  • Patent number: 11162934
    Abstract: A sensing chip attached to a bandage monitors the healing process of a wound by detecting growth factors, thrombin and fibrinogen. The complementary metal-oxide semiconductor includes a functionalized working electrode, functionalized counter electrode and functionalized reference electrode. The healing progress is stimulated by generating oxygen in the wound.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: November 2, 2021
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventor: Axel Scherer
  • Patent number: 11150217
    Abstract: A method of directly measuring SO2 and other trace gases by configuring an electrochemical cell (ECC) sonde; and an ECC sonde pump inlet filter to remove ozone and other trace gases. Further, calibration and operation procedures for the SO2 and other trace gas ECC sondes are disclosed.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: October 19, 2021
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: James Flynn, Gary A. Morris
  • Patent number: 11105765
    Abstract: A biosensor device includes a substrate plate, a metal conductive layer, a plurality of working electrodes and an insulating layer. The metal conductive layer is disposed over the substrate plate and has an upper surface. The working electrodes are disposed over the upper surface of the metal conductive layer, wherein each of the working electrodes has a top surface and each of the top surfaces is higher than the upper surface of the metal conductive layer. The insulating layer covers the metal conductive layer and surrounds the working electrodes, wherein an upper surface of the insulating layer is located between the top surfaces and the upper surface of the metal conductive layer such that the working electrodes protrude beyond the upper surface of the insulating layer. A method for manufacturing the biosensor device and a method for detecting biological molecules by using the biosensor device are also provided herein.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: August 31, 2021
    Assignee: NEAT BIOTECH, INC.
    Inventors: Chiun-Jye Yuan, Chun-Lung Lien, Paul C.-P. Chao
  • Patent number: 11078591
    Abstract: Embodiments herein relate to methods, apparatus, and systems for electroplating metal into recessed features using a superconformal fill mechanism that provides relatively faster plating within a feature and relatively slower plating in the field region. Moreover, within the feature, plating occurs faster toward the bottom of the feature compared to the top of the feature. The result is that the feature is filled with metal from the bottom upwards, resulting in a high quality fill without the formation of seams or voids, defects that are likely where a conformal fill mechanism is used. The superconformal fill mechanism relies on the presence of a sacrificial oxidant molecule that is used to develop a differential current efficiency within the feature compared to the field region. Various plating conditions are balanced against one another to ensure that the feature fills from the bottom upwards. No organic plating additives are necessary, though plating additives can be used to improve the process.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: August 3, 2021
    Assignee: LAM RESEARCH CORPORATION
    Inventors: Lee J. Brogan, Natalia V. Doubina, Matthew A. Rigsby, Jonathan David Reid
  • Patent number: 11054381
    Abstract: A first gas sensor includes a main pump cell that pumps oxygen inside a main oxygen concentration adjustment chamber, by applying a main pump voltage between a main interior side electrode and an exterior side electrode, and causing a main pump current to flow, a preliminary pump cell that pumps the oxygen inside a preliminary adjustment chamber by applying a preliminary pump voltage between an interior side preliminary electrode and the exterior side electrode, and causing a preliminary pump current to flow, and a constant control unit that controls the preliminary pump voltage of the preliminary pump cell in a manner so that the main pump current of the main pump cell becomes constant.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: July 6, 2021
    Assignee: NGK INSULATORS, LTD.
    Inventors: Kunihiko Nakagaki, Taku Okamoto, Osamu Nakasone, Nobukazu Ikoma
  • Patent number: 10996190
    Abstract: Apparatus and associated methods relate to a micro-electro-mechanical system (MEMS) based gas sensor including an electrolyte contacting one or more top electrode(s) arranged on the bottom surface of a top semiconductor substrate (TSS), and one or more bottom electrode(s) arranged on the top of a bottom semiconductor substrate (BSS), the TSS and BSS joined with an adhesive seal around the electrolyte, the sensor including one or more capillaries providing gaseous communication to the electrolyte from an external ambient environment. The electrodes may be electrically accessed by one or more vias to externally accessible bond pads. In some examples, an electrical connection may be made from an additional bond pad on top of the TSS to the electrolyte. Various embodiments may reduce the size of various gas sensors to advantageously allow their inclusion into portable electronic devices.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: May 4, 2021
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Scott Edward Beck, Yong-Fa Wang, Robert Higashi, Philip Clayton Foster, Keith Francis Edwin Pratt, Cristian Vasile Diaconu
  • Patent number: 10919162
    Abstract: Systems and methods for swapping mobile robot batteries on battery charging stations are disclosed herein. An example system may comprise at least one mobile robot, wherein the mobile robot may be optionally coupled to a modular component, and wherein the mobile robot and the modular component may each have robot batteries configured to be detachably removed from the mobile robot and the modular component. An example system may also comprise at least one battery charging station for receiving robot or modular component batteries for charging, and also for providing charged batteries to mobile robots or modular components. Finally, the system may comprise a service provider and a network that may be used to manage data and handle interactions between the mobile robots and the battery charging stations.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: February 16, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Raj Sohmshetty, Doug Cantriel, Justin Miller, Kilian Vas
  • Patent number: 10900921
    Abstract: A multi-functional sensor assembly includes an electrically non-conductive substrate defining at least a distal region, intermediary region, and proximal region that are each covered with electrically conductive traces. The proximal region is configured to be exposed to a media to be sensed and the distal and intermediary regions are configured to be protected from the media. The electrically conductive traces comprise at least electrical circuits to sense temperature and flow of the media and one or more electrodes to sense one or more of conductivity, oxidation reduction potential (ORP), and acidity (pH) of the media.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: January 26, 2021
    Assignees: Masco Corporation, THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Klaus Brondum, Mark A. Burns, Wen-Chi Lin, Michael McCague, Stephen Michael Stec, Brian J. Johnson, Garry Marty
  • Patent number: 10883892
    Abstract: A pressure measurement cell comprises: a ceramic counter body; a ceramic measuring diaphragm which is joined in a pressure-tight manner with the counter body, creating a measurement chamber between the counter body and the measuring diaphragm, by means of a circumferential joint. The measuring diaphragm can be deformed by a pressure to be measured; an electrical converter for converting a pressure-dependent deformation of the measuring diaphragm into an electrical signal; and a temperature transducer for providing at least one electrical signal dependent on a temperature or on a temperature gradient of the pressure measurement cell. The temperature transducer comprises at least one first thermocouple having a galvanic contact between a first conductor with an electrically conductive material and a second conductor with at least one second electrically conductive material.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: January 5, 2021
    Assignee: ENDRESS + HAUSER SE+CO. KG
    Inventors: Andreas Rossberg, Nils Ponath, Jan Schleiferbock, Thomas Uehlin
  • Patent number: 10876990
    Abstract: Methods for analyzing a fluid sample can include providing a sensor comprising a non-conductive housing and having a first face and an electrode array mounted in the first face. The method can include disposing the first face of the housing into a fluid sample to be analyzed, selecting a mode of operation, and initiating sensor operation. Modes of operation can include electrochemical operation and conductivity analysis, and can be selected via positioning a switch. The method can include receiving information from the sensor regarding at least one parameter of the fluid. Such parameters can include a concentration of a target constituent in the fluid sample, combined concentrations of different species within the fluid sample, and/or information indicative of the conductivity of the fluid sample.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: December 29, 2020
    Assignee: Ecolab USA Inc.
    Inventor: Rodney H. Banks
  • Patent number: 10837938
    Abstract: A gas sensor device is equipped with a diffusion controlling portion, a pump cell, and a sensor cell. The diffusion controlling portion is formed to face a major surface of a solid electrolyte body and works to control a rate of diffusion of a measurement gas entering a measurement gas chamber. The pump cell has a pump electrode which contains gold and is formed on the major surface. The pump electrode is located downstream of the diffusion controlling portion in a gas flow direction. The pump cell works to regulate a concentration of oxygen in the measurement gas upon application of voltage to the pump electrode. The sensor cell has a sensor electrode formed on the major surface downstream of the diffusion controlling portion in the gas flow direction. The sensor cell works to measure a concentration of nitrogen oxide contained in the measurement gas upon application of voltage to the sensor electrode. The pump electrode is disposed upstream of the sensor electrode at a distance of 0.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: November 17, 2020
    Assignee: DENSO CORPORATION
    Inventors: Takashi Araki, Yusuke Todo
  • Patent number: 10816503
    Abstract: An electrochemical hydrogen cyanide sensor (1) comprises a housing (10) comprising an opening (2) allowing gas to enter the sensor (1); an electrolyte disposed within the housing (10); a plurality of electrodes in contact with the electrolyte within the housing (10), wherein the plurality of electrodes comprise a working electrode (5) and a counter electrode (7), and wherein the electrodes comprise a metal catalytic material; and a filter (3) operable to cover the opening (2) of the housing (10), and prevent hydrogen sulfide from reaching the electrodes, wherein the filter (3) comprises silver sulfate layered onto a polytetrafluoroethylene support material.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: October 27, 2020
    Assignee: Honeywell International Inc.
    Inventors: Na Wei, Yuzhong Yu, Ling Liu
  • Patent number: 10809223
    Abstract: The present disclosure relates to a sensor for determining measured values of a measured variable representing an analyte content in a measuring fluid, comprising a measuring probe with a probe housing that comprises an immersion region provided for immersion into the measuring fluid, and a single-layer or multi-layer membrane arranged in the immersion region, wherein the membrane comprises at least a first layer that is formed from a polymer and comprises a superhydrophobic surface that is in contact with the measuring fluid when the immersion region is immersed in the measuring fluid.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: October 20, 2020
    Assignee: Endress+Hauser Conducta GmbH+Co. KG
    Inventors: Christian Fanselow, Erik Hennings, Alexander Hörig, Andreas Löbbert, Magdalena Losik-Strassberger, Stefan Wilke
  • Patent number: 10697924
    Abstract: A gas sensor includes a housing (22) having disposed therein a membrane electrode assembly comprising a sensing electrode (14), a counter electrode (16), and a solid polymer electrolyte (12) disposed between the sensing electrode and the counter electrode. The sensing electrode comprises a first catalyst comprising noble metal nanoparticles (34). The counter electrode comprises a second catalyst comprising noble metal nanoparticles (34), which can be of the same composition or a different composition as the first catalyst. The sensor housing also includes an opening (24) in fluid communication with the sensing electrode for test gas to contact the sensing electrode. The sensor also includes an electrical circuit (19) connecting the sensing electrode and the counter electrode.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: June 30, 2020
    Assignee: CARRIER CORPORATION
    Inventors: Lei Chen, Zhiwei Yang, Antonio M. Vincitore
  • Patent number: 10667732
    Abstract: Devices and methods of making and using the device for the non-invasive detection of volatile anesthetics are provided. The devices are capable of measuring the concentration of volatile anesthetics transdermally and in a non-invasive manner. The devices and methods can be applied in detection of volatile anesthetics in samples collected from human skin perspiration.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: June 2, 2020
    Assignees: The Florida International University Board of Trustees, University of Miami
    Inventors: Yogeswaran Umasankar, Shekhar Bhansali, Ernesto A. Pretto, Jr.
  • Patent number: 10634654
    Abstract: An electrochemical detector including at least one substance selection structure disposed adjacent or proximate to an electronic device structure, wherein the substance selection structure is arranged to interact with a target substance having a molecular structure so as to alter an electrical characteristic of the electronic device structure.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: April 28, 2020
    Assignee: City University of Hong Kong
    Inventors: A. L. Roy Vellaisamy, Shishir Venkatesh, Chi-Chung Yeung
  • Patent number: 10620151
    Abstract: An electrochemical sensor is provided which may be formed using micromachining techniques commonly used in the manufacture of integrated circuits. This is achieved by forming microcapillaries in a silicon substrate and forming an opening in an insulating layer to allow environmental gases to reach through to the top side of the substrate. A porous electrode is printed on the top side of the insulating layer such that the electrode is formed in the opening in the insulating layer. The sensor also comprises at least one additional electrode. The electrolyte is then formed on top of the electrodes. A cap is formed over the electrodes and electrolyte. This arrangement may easily be produced using micromachining techniques.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: April 14, 2020
    Assignee: Analog Devices Global
    Inventors: Alfonso Berduque, Helen Berney, William Allan Lane, Raymond J. Speer, Brendan Cawley, Donal Mcauliffe, Patrick Martin McGuinness
  • Patent number: 10563252
    Abstract: The present invention is a biosensor apparatus that includes a substrate, a source on one side of the substrate, a drain spaced from the source, a conducting channel between the source and the drain, an insulator region, and receptors on a gate region for receiving target material. The receptors are contacted for changing current flow between the source and the drain. The source and the drain are relatively wide compared to length between the source and the drain through the conducting channel.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: February 18, 2020
    Assignee: UNIVERSITY OF HAWAII
    Inventor: James Holm-Kennedy
  • Patent number: 10520481
    Abstract: A hydrogen sulfide gas detector is provided. The detector includes a metal oxide semiconductor-based hydrogen sulfide gas sensor having an electrical characteristic that varies with hydrogen sulfide gas concentration. Measurement circuitry is coupled to the metal oxide semiconductor-based hydrogen sulfide gas detector to measure the electrical characteristic. A controller is coupled to the measurement circuitry and is configured to receive an indication of the electrical characteristic of the hydrogen sulfide gas sensor as well as an indication of ambient humidity. The controller is configured to provide a compensated hydrogen sulfide gas concentration output based on the indication of the electrical characteristic of the hydrogen sulfide gas sensor, an indication of ambient temperature, and the indication of ambient humidity.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: December 31, 2019
    Assignee: Rosemount Inc.
    Inventors: Henryk Kozlow, Alastair Kerr Muir, Todd Christopher Phelps, Lucjan Antoni Oleszczuk
  • Patent number: 10522864
    Abstract: Devices powered by fuel cells can be operated for extended durations when the fuel cells are adapted to extract the necessary reactants for generating power from the surrounding environment and when the concentration of reactants in that environment is maintained at a sufficient level by interaction between the environment and a reactant-enriched atmosphere.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: December 31, 2019
    Assignee: CBN Nano Technologies inc.
    Inventors: James F. Ryley, III, Robert A. Freitas, Jr.
  • Patent number: 10495595
    Abstract: A gas sensor device includes: a sensor film including a sensor surface and a resistance which increases with an increase in an amount of gas adsorbed on the sensor surface; a first electrode, a second electrode, and a third electrode that are electrically coupled to the sensor film; and a protective film that covers the sensor surface in a region between the first electrode and the second electrode, wherein the sensor surface is exposed in a region near the third electrode.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: December 3, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Kazuaki Karasawa, Michio Ushigome, Satoru Momose, Ryozo Takasu, Osamu Tsuboi
  • Patent number: 10488065
    Abstract: An HVAC system is provided having an air supply system, a refrigerant circuit configured to condition air in the air supply system, and an electrochemical sensor configured to detect a refrigerant leak from the refrigerant circuit.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: November 26, 2019
    Assignee: CARRIER CORPORATION
    Inventors: Lei Chen, Zhiwei Yang, Warren Clough, Larry D. Burns, Ivan Rydkin
  • Patent number: 10488389
    Abstract: Some embodiments are directed to a system for assessing chloride concentration at one predetermined area of a porous or composite material, such as a reinforced concrete structure, including a sensor embedded in the predetermined area of the material, an analyzer connected to the sensor, and a processing module connected to the analyzer. The sensor includes two facing or coplanar electrodes, an intermediate layer arranged between the electrodes, the intermediate layer being in contact with the material of the predetermined area of the structure and including calcium aluminates. The analyzer is configured to apply an alternate current between the electrodes and output an impedance value or capacitance value of the intermediate layer. The processing module is configured to compute a chloride concentration assessment in the predetermined area of the material based on the impedance value or capacitance value outputted by the analyser.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: November 26, 2019
    Assignees: UNIVERSITÉ DE NANTES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS, UNIVERSIDAD DE LOS ANDES
    Inventors: Magda Marcela Torres Luque, Johann Faccelo Osma Cruz, Mauricio Sanchez Silva, Emilio Bastidas Arteaga, Franck Schoefs
  • Patent number: 10458941
    Abstract: Provided is an electrochemical measurement device capable of measuring more accurately and an electrochemical measurement apparatus provided with the electrochemical measurement device. The electrochemical measurement device includes a base part, and a placement part on which an object to be measured is placed, the placement part being provided to the base part. The electrochemical measurement device also includes an electrode part provided near the placement part on the base part, a wiring part provided on a surface of the base part and electrically connected to the electrode part, and an insulator that covers the wiring part. Further, a protruding part is provided on the base part of the electrochemical measurement device so as to protrude past the insulator.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: October 29, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Jun Ogihara, Sumihiro Otsuka, Noriteru Furumoto, Masahiro Yasumi, Atsushi Shunori
  • Patent number: 10416062
    Abstract: A soot sensor includes a soot sensor including a first element on a first surface of the soot sensor. A soot sensing system may include a soot sensor and circuitry electrically coupled to the first element of the soot sensor. The circuitry is configured to determine an amount of soot accumulated on the first element and to control heating of the first element in response to the soot accumulation.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: September 17, 2019
    Assignee: Stoneridge, Inc.
    Inventors: Kayvan Hedayat, John Hart, Eric Matson, Mark Wilson, Norman Poirier
  • Patent number: 10408780
    Abstract: The present invention provides a structure of a gas sensor, comprising: a support, having a front side, a back side opposite to the front side, a cell region, and a peripheral region circling the cell region; a cavity, formed on the back side of the support in the cell region; a heater, disposed on the front side of the support covering the cavity; a sensing element, disposed on the heater; and a sealing layer, formed on the back side of the support covering inside the cavity.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: September 10, 2019
    Assignee: UNITED MICROELECTRONICS CORPORATION
    Inventors: Chia-Wei Lee, Chang-Sheng Hsu, Chih-Fan Hu, Chin-Jen Cheng, Chang Hsin Wu
  • Patent number: 10409226
    Abstract: A wearable device with an air quality sensor, the wearable device, comprising a housing enclosing an electronic board, a display arrangement, a battery, the housing lodging a cavity with an internal area, the cavity containing an air quality sensor in the internal area, the cavity being delimited by a cavity wall and by a membrane, the membrane having an inner wall oriented toward the cavity internal area and an outer wall opposed to the inner wall, the internal area of the cavity being in fluid communication with the ambient air through the membrane, the membrane being permeable to air and substantially not permeable to water.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: September 10, 2019
    Assignee: WITHINGS
    Inventors: Haikel Balti, Charlotte Leger, Frederic Techer, Nadine Buard, Marc Besnard
  • Patent number: 10386325
    Abstract: A gas sensor including a housing containing a potassium permanganate element sandwiched between two polytetrafluoroethylene elements, a carbon element, a polytetrafluoroethylene element located adjacent to the carbon element, a sensing electrode, a reference electrode, and a counter electrode with attached current collectors, and an electrolyte.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: August 20, 2019
    Assignee: LIFE SAFETY DISTRIBUTION GMBH
    Inventors: Lei Xiao, Steven Leslie Scorfield, John Chapples
  • Patent number: 10371617
    Abstract: An electrochemical test device for determining a concentration of one or more analytes in a fluid sample is provided. The electrochemical test device comprises a set of electrodes including two or more working electrodes, each working electrode for determining the concentration of a corresponding analyte, and sensing chemistry for each working electrode, wherein the sensing chemistry for a first of the two or more working electrodes comprises a diaphorase, an electron transfer agent, an NAD(P)+-dependent dehydrogenase and a cofactor for the NAD(P)+-dependent dehydrogenase, wherein at least some of the diaphorase for the first working electrode is disposed in a diaphorase-containing layer which extends over the first working electrode and at least a second of the two or more working electrodes.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: August 6, 2019
    Assignee: INSIDE BIOMETRICS INTERNATIONAL LIMITED
    Inventors: Marco Cardosi, Stephanie Kirkwood, Damian Baskeyfield
  • 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: 10295492
    Abstract: Methods for analyzing a fluid sample can include providing a sensor comprising a non-conductive housing and having a first face and an electrode array mounted in the first face. The method can include disposing the first face of the housing into a fluid sample to be analyzed, selecting a mode of operation, and initiating sensor operation. Modes of operation can include electrochemical operation and conductivity analysis, and can be selected via positioning a switch. The method can include receiving information from the sensor regarding at least one parameter of the fluid. Such parameters can include a concentration of a target constituent in the fluid sample, combined concentrations of different species within the fluid sample, and/or information indicative of the conductivity of the fluid sample.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: May 21, 2019
    Assignee: Ecolab USA Inc.
    Inventor: Rodney H. Banks
  • Patent number: 10288579
    Abstract: An ammonia detection section is disposed on an electrically insulating layer and includes a reference electrode, a solid electrolyte body for ammonia, and a detection electrode that are stacked in this order on the electrically insulating layer. In the ammonia detection section, a three-phase boundary is formed at the interface between the reference electrode and the solid electrolyte body for ammonia, and another three-phase boundary is formed at the interface between the detection electrode and the solid electrolyte body for ammonia. The concentration of ammonia in exhaust gas is thereby detected. The ammonia detection section includes a porous layer formed of an electrically insulating porous material and disposed between the insulating layer and the reference electrode.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: May 14, 2019
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Yoshihiro Nakano, Tetsuo Yamada
  • Patent number: 10261046
    Abstract: Disclosed are improved methods and structures for electrochemical sensors that may advantageously sense/detect chemical species including pollutants and/or energetics in a gaseous phase. Sensors according to the present disclosure may advantageously be fabricated using large scale microfabrication techniques and materials.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: April 16, 2019
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Beth L. Pruitt, Thomas Jaramillo, Tom Larsen, Frédéric Loizeau, Pierre-Alexandre Gross
  • Patent number: 10247697
    Abstract: A gas sensor includes a solid electrolyte substrate that has oxygen-ion conductivity, and a counter plate, made of ceramic, that is arranged so as to face a first surface of the solid electrolyte substrate. The gas sensor further includes a first spacer, made of ceramic, that is held between the counter plate and the solid electrolyte substrate, a heater substrate, made of ceramic, that is arranged so as to face a second surface of the solid electrolyte substrate, and a second spacer, made of ceramic, that is held between the heater substrate and the solid electrolyte substrate. Of the counter plate, the sintered density of an inside portion that comes in contact with a measurement-gas chamber is 0.8 to 5.0% lower than the sintered density of an outside portion that comes in contact with the first spacer.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: April 2, 2019
    Assignee: DENSO CORPORATION
    Inventor: Shigekazu Hidaka
  • Patent number: 10209155
    Abstract: A semiconductor device includes: a first substrate with one side on which a sensing unit for a physical quantity is arranged and multiple diffusion wiring layers electrically connected to the sensing unit are arranged by impurity diffusion; and a second substrate having one side which is bonded to the one side of the first substrate. An air tight chamber is provided between the first substrate and the second substrate. The sensing unit is sealed in the air tight chamber. The first substrate includes an outer edge portion as a portion of the one side of the first substrate surrounding multiple diffusion wiring layers, and multiple diffusion wiring layers are arranged in an inner edge portion. The outer edge portion has an impurity concentration which is constant in a circumferential direction along an edge of the first substrate.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: February 19, 2019
    Assignee: DENSO CORPORATION
    Inventors: Kouhei Yamaguchi, Masakazu Yatou, Minoru Murata
  • 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
    Assignee: UNIVERSITY OF LOUISVILLE RESEARCH FOUNDATION, INC.
    Inventors: Mohamed M. Marei, Richard P. Baldwin, Thomas J. Roussel, Jr., Robert S. Keynton
  • Patent number: 10191008
    Abstract: A gas sensor including a gas sensing electrode, a counter electrode disposed within a housing, and respective conductors that connect the gas sensing electrode to the counter electrode via a sensing circuit is disclosed. The housing includes a solid electrolyte in communication with the gas sensing electrode and counter electrode wherein the solid electrolyte further comprises one or more coatings or layers. The one or more coatings or layers have a lower water vapor transport rate than that of the electrolyte, such that, in use, water vapor transport between the electrolyte and atmosphere is reduced.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: January 29, 2019
    Assignee: Life Safety Distribution AG
    Inventors: John Chapples, Keith Francis Edwin Pratt, Martin Geoffrey Jones
  • Patent number: 10132934
    Abstract: A detection device is formed in a body of semiconductor material having a first face, a second face, and a cavity. A detection area formed in the cavity, and a gas pump is integrated in the body and configured to force movement of gas towards the detection area. A detection system of an optical type or a detector of alpha particles is arranged at least in part in the detection area.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: November 20, 2018
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Sara Loi, Alberto Pagani
  • Patent number: 10041903
    Abstract: In a cross section of the gas sensor element which is perpendicular to its lengthwise direction and through which all first to fourth lead portions penetrate, when the cross section is bisected into two regions with respect to the width direction of the gas sensor element, the first lead portion and the fourth lead portion are disposed in one of the regions and the second lead portion and the third lead portion are disposed in the other region, and the second lead portion and the third lead portion are disposed so as to be spaced apart from each other in the width direction with no overlap as viewed in a stacking direction.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: August 7, 2018
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Masaki Mizutani, Nobuo Furuta
  • 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
    Assignee: ROBERT BOSCH GMBH
    Inventors: Goetz Reinhardt, Hartwig Lehle, Bernhard Ledermann
  • Patent number: 10020528
    Abstract: A fuel cell comprises an anode, a cathode, and a solid electrolyte layer disposed between the anode and the cathode. The solid electrolyte layer contains a zirconia-based material as a main component. A first intensity ratio of tetragonal crystal zirconia to cubic crystal zirconia in a Raman spectrum in a central portion of the solid electrolyte layer is greater than a second intensity ratio of tetragonal crystal zirconia to cubic crystal zirconia in a Raman spectrum of an outer edge.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: July 10, 2018
    Assignee: NGK INSULATORS, LTD.
    Inventors: Makoto Ohmori, Shinji Fujisaki
  • Patent number: 9991565
    Abstract: A sensor system for detecting a leak of a system component from an electrochemical storage system, in particular a lithium-ion battery. To determine a defect in the electrochemical storage system, the sensor system includes a reaction chamber containing a detection component, and a measuring device for determining a physical variable within the reaction chamber. The value of the physical variable is changeable by a chemical reaction of the system component with the detection component, so that a leak of the system component is detectable via a change in the value of the physical variable. Also described is a sensor element for such a sensor system, an electrochemical storage system having such a sensor system or sensor element, the use of such a sensor system or sensor element, and a mobile or stationary system, for example an electric vehicle, equipped with the sensor system, the sensor element, or the storage system.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: June 5, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Kathy Sahner, Jens Grimminger, Marcus Wegner, Dirk Liemersdorf
  • Patent number: 9983164
    Abstract: An electrochemical sensor assembly is disclosed. In some implementations, the electrochemical sensor assembly comprises at least one electrochemical sensor/cell including a substrate with a cavity formed on a first side of the substrate, an ionic conductor is disposed within the cavity, and a lid assembly positioned over the cavity. The lid assembly may include a plurality of electrodes and a gas permeable region positioned over the plurality of electrodes, where the plurality of electrodes include a working electrode configured to react a molecular species when the molecular species is received through the gas permeable region. The lid assembly may be sealed to the substrate with a bonding layer disposed between the lid assembly and the substrate. The bonding layer may be curable with light or thermally curable at a suitably low temperature to avoid thermal damage to the ionic conductor.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: May 29, 2018
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Dan G. Allen, Jim Chih-Min Cheng
  • Patent number: 9947954
    Abstract: A fuel cell stack includes seven current collecting members and six fuel cells that are alternate stacked with reference to the stacking direction. Each of the six fuel cells includes an anode, a cathode and a solid electrolyte layer that is disposed between the anode and the cathode and contains a zirconia-based material as a main component. The six fuel cells include a first fuel cell disposed in the center with reference to the stacking direction, and a second fuel cell disposed in one end with reference to the stacking direction. An intensity ratio of tetragonal crystal zirconia to cubic crystal zirconia in a Raman spectrum of the solid electrolyte layer of the first fuel cell is greater than an intensity ratio of tetragonal crystal zirconia to cubic crystal zirconia in a Raman spectrum of the solid electrolyte layer of the second fuel cell.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: April 17, 2018
    Assignee: NGK INSULATORS, LTD.
    Inventors: Makoto Ohmori, Shinji Fujisaki