Selectively Permeable Membrane Patents (Class 204/415)
  • Patent number: 10344388
    Abstract: According to one embodiment of a CO2 reduction catalyst of the present invention, a conductive material is immersed in an aqueous solution containing a gold source, and a current or a potential is applied, whereby a highly active CO2 reduction catalyst can be formed in a wide range portion on a surface of the conductive material. According to one embodiment of a CO2 reduction catalyst of the present invention, in a CO2 reduction reaction apparatus including a CO2 reduction electrode having the CO2 reduction catalyst, CO2 is reduced.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: July 9, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yoshitsune Sugano, Ryota Kitagawa, Akihiko Ono, Jun Tamura, Yuki Kudo, Masakazu Yamagiwa, Eishi Tsutsumi, Satoshi Mikoshiba, Asahi Motoshige, Arisa Yamada
  • Patent number: 10330627
    Abstract: Biosensors and biosensor systems are disclosed that have manganese (III) oxide (Mn2O3)-based electrodes that can attenuate interference of a detection signal resulting from an analyte-relevant reaction caused by undesired reaction of interferents in a sample. Methods are also disclosed for making and using the same.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: June 25, 2019
    Assignee: Roche Diabetes Care, Inc.
    Inventors: Karl-Heinz Koelker, Arnulf Staib
  • Patent number: 9969947
    Abstract: A method of optimizing system parameters in a crude unit to reduce corrosion and corrosion byproduct deposition in the crude unit is disclosed and claimed. The method includes measuring or predicting properties associated with the system parameters and using an automated controller to analyze the properties to cause adjustments in the chemical program to optimize the system parameters. Adjusting the system parameters effectively controls corrosion in the crude unit by reducing the corrosiveness of a fluid in the process stream and/or by protecting the system from a potentially corrosive substance. System parameter sensing probes are arranged at one or more locations in the process stream to allow accurate monitoring of the system parameters in the crude unit.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: May 15, 2018
    Assignee: Ecolab USA Inc.
    Inventors: Glenn L. Scattergood, Sam Ferguson
  • Patent number: 9966157
    Abstract: The invention related to a complexing system for extracting a radionuclide from a waste water solution including calix[n]arene groups on the surface of a porous conducting material.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: May 8, 2018
    Assignee: Commissariat a L'Energie Atomique et aux Energies Alternatives
    Inventors: Ekatarina Shilova, Pascal Viel, Vincent Huc, Yves Barre
  • Patent number: 9951424
    Abstract: A plating method includes: providing a work piece which is metal or non-metal; forming a printed layer on a predetermined region of a surface of the work piece through printing electrical conductive material on the predetermined region; forming a plated layer through plating the printed layer and the surface of the work piece.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: April 24, 2018
    Assignee: HOEY CO., LTD.
    Inventor: Joseph Huang
  • Patent number: 9903817
    Abstract: The dissolved gas sensor system includes a dissolved gas sensor partially located within a housing and partially extending through the housing lid. The sensor is created by affixing a selectively permeable membrane to a dissolved gas transducer with a waterproof polymer. This forms a membrane cavity between the membrane, polymer, and transducer. The membrane cavity allows the transducer to detect whatever gas or gases can pass through the selectively permeable membrane. These readings pass to a controller located within the housing body that can receive and process data, and store the data in a removable data storage for later retrieval by a user. The controller can also regulate overall power consumption of the system to increase the operating life of the system.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: February 27, 2018
    Inventors: Karl B. Haase, Ward E. Sanford
  • Patent number: 9893652
    Abstract: An electricity-generating element unit including a plurality of electricity-generating elements, each of the plurality of electricity-generating elements including a first electrode, an intermediate layer, and a second electrode disposed with the intermediate layer being between the first electrode and the second electrode, and a coupling unit coupling the plurality of electricity-generating elements to each other, wherein when an external force is applied to at least one of the plurality of electricity-generating elements to bring the first electrode and the second electrode of the at least one of the plurality of electricity-generating elements close to each other, a distance between the first electrode and the second electrode of the electricity-generating element or each of the electricity-generating elements to which an external force is not applied is increased by the coupling unit.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: February 13, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Mizuki Otagiri, Tsuneaki Kondoh, Tomoaki Sugawara, Yuko Arizumi, Junichiro Natori, Takahiro Imai
  • Patent number: 9844328
    Abstract: Sensor devices including dissolvable tissue-piercing tips are provided. The sensor devices can be used in conjunction with dissolvable needles configured for inserting the sensor devices into a host. Hardening agents for strengthening membranes on sensor devices are also provided. Methods of using and fabricating sensor devices are also provided.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: December 19, 2017
    Assignee: DexCom, Inc.
    Inventors: Peter C. Simpson, Jennifer Blackwell, Sebastian Böhm
  • Patent number: 9804123
    Abstract: An electrochemical sensor utilizes a chemical compound which is not a macromolecule but rather is a single chemical compound of determinate structure, incorporating two redox systems which differ in their response to a species to be detected. In one form, one redox system displays a voltammetric wave which is pH dependent while another displays a voltammetric wave which is pH independent and acts as an internal reference. The sensor comprises a solid substrate, which may be carbonaceous, on which the compound is immobilized. The sensor may be incorporated into a tool to be suspended in a wellbore.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: October 31, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Valerie Lafitte, Nathan Lawrence
  • Patent number: 9784755
    Abstract: A method of operating a sensor system including at least one sensor for detecting an analyte gas and a control system includes electronically interrogating the sensor to determine the operational status thereof and upon determining that the operational status is non-conforming based upon one or more predetermined thresholds, the control system initiating an automated calibration of the sensor with the analyte gas or a simulant gas.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: October 10, 2017
    Assignee: MSA Technology, LLC
    Inventors: Towner B. Scheffler, Michael Brown, Andrew E. Nalepa, Brian Keith Davis
  • Patent number: 9726633
    Abstract: An electrochemical gas sensor system (100) detects the concentration of a harmful gas in a measuring environment (70). The electrochemical gas sensor system (100) contains a voltage generator (19) and an electrochemical gas sensor (1). The electrochemical gas sensor (1) has a sensor housing (2) and a gas inlet (18). A measuring electrode (3), an auxiliary electrode (5), a reference electrode (17), a first generator electrode (13) and a second generator electrode (14) are in an electrolyte liquid (11) in the sensor housing (2). A salt (28) (halide) of a halogen is dissolved in the electrolyte liquid (11). The first generator electrode (13) and the second generator electrode (14) are connected to the voltage generator (19) to form a galvanic source. The galvanic source causes the salt (28) (halide) to react to form a halogen (28?). A defined, largely stable reference voltage potential becomes established on the reference electrode (17).
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: August 8, 2017
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Frank Mett, Kerstin Lichtenfeldt, Johanna Jörn
  • Patent number: 9689833
    Abstract: A gas sensor includes known types of electrodes such as sensing electrodes, counter electrodes or reference electrodes to sense the presence of a predetermined gas. In addition, at least one diagnostic electrode is carried in the sensor. The diagnostic electrode implements at least one diagnostic function without substantially impairing the gas sensing function. The diagnostic electrode is immersed in sensor electrolyte.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: June 27, 2017
    Assignee: Life Safety Distribution AG
    Inventors: Keith Francis Edwin Pratt, Martin G. Jones, John Chapples, Lei Xiao
  • Patent number: 9625443
    Abstract: A method for measuring ammonia in a blood sample may involve positioning the blood sample in proximity with an ammonia gas sensor, generating a current with the ammonia gas sensor in response to ammonia gas released from the blood sample, and measuring the current generated by the ammonia gas sensor, using a current measurement member coupled with the ammonia gas sensor. A device for measuring an ammonia level in a blood sample may include a blood sample containment member, an ammonia gas sensor coupled with the blood sample containment member, and a current measurement member coupled with the ammonia gas sensor. The method and device may be used to measure an ammonia level in a blood sample as small as one drop of blood, or approximately 0.05 mL of blood.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: April 18, 2017
    Assignee: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Thomas Richard Veltman, Chun J. Tsai, Matthew William Kanan, Gilbert Chu
  • Patent number: 9612700
    Abstract: User interfaces and electrode assemblies are provided. A user interface includes a printed circuit board and an outer touch panel spaced from the printed circuit board. The user interface assembly further includes an electrode assembly disposed between the printed circuit board and outer touch panel. The electrode assembly includes a first conductive compressible electrode extending along a length between a first end and a second end and from the printed circuit board to the outer touch panel. The electrode assembly further includes a second conductive compressible electrode extending along a length between a first end and a second end and from the printed circuit board to the outer touch panel. The first and second electrodes are intertwined and define a gap therebetween. The gap is generally constant along the lengths of the first and second electrodes between the first ends and the second ends of the first and second electrodes.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: April 4, 2017
    Assignee: Haier US Appliance Solutions, Inc.
    Inventor: Tyler James Doering
  • Patent number: 9586814
    Abstract: A monochloramine microsensor includes an elongated housing defining a central axis and an open interior and having a capillary opening at one end. A semi-permeable membrane covers the capillary opening, the semi-permeable membrane allowing diffusion of chloramines there-through while preventing water from entering into the interior of the housing. A chloramine sensitive element in the form of a wire, fiber or nanotube is mounted within the housing, the chloramine sensitive element, when used in conjunction with an anode, outputs current in an amount proportional to the concentration of chloramine present in a liquid sample in which the chloramine sensitive element is immersed. The chloramine sensitive element extends along a length of the central axis to a first end adjacent to and spaced from the semi-permeable membrane. The chloramine sensitive element is a gold wire, a platinum wire, a carbon fiber or a carbon nanotube.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: March 7, 2017
    Assignee: The United States of America as represented by the Administrator of the Environmental Protection Agency
    Inventors: Jonathan G. Pressman, Woo Hyoung Lee, David G. Wahman
  • Patent number: 9493652
    Abstract: A polymeric film composition and a non-enzymatic glucose sensor including the functional polymeric film are provided. The polymeric film composition includes polyurethane and perfluorosulfonic acid polymer.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: November 15, 2016
    Assignees: SAMSUNG ELECTRONICS CO., LTD., INSTITUTE FOR RESEARCH & INDUSTRY COOPERATION, PNU
    Inventors: Chulho Cho, Yoon-Bo Shim, Jaehong Kim, Suntae Jung, Seongje Cho, Jaegeol Cho
  • Patent number: 9494541
    Abstract: Methods and sensors for selective fluid sensing are provided. A gas dosimeter includes a housing configured with an opening to admit an analyte. The gas dosimeter also includes a multivariate sensor disposed in the housing. The sensor is configured to determine a concentration of the analyte over time. In addition, the multivariate sensor includes an irreversible sensing material. Electrical properties of the irreversible sensing material are configured to change irreversibly upon exposure to the analyte.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: November 15, 2016
    Assignee: General Electricity Company
    Inventors: Radislav Alexandrovich Potyrailo, Hubert Tunchiao Lam, Zhexiong Tang, Nandini Nagraj
  • Patent number: 9417204
    Abstract: Matrix materials, such as sol-gels and polymers derivatives to contain a redox active material can be used to form electrodes and probes suitable for use in pH meters and other analyte sensing devices.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: August 16, 2016
    Assignee: Senova Systems, Inc.
    Inventors: Eric Lee, Mark Micklatcher, Jai Krishnamurthy
  • Patent number: 9383233
    Abstract: A sensor device is provided, which has an energy storage cell and at least one carrier substrate for at least one detector. The sensor device is characterized in that the at least one carrier substrate has at least one contact section for producing an electrically conductive and mechanical contact to the energy storage cell.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: July 5, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Christian Peters, Maxime Loidreau
  • Patent number: 9304103
    Abstract: An ion meter is calibrated by providing two ISFETS with different areas, where the two gate areas are used to calibrate the two ISFETS with respect to one another. The use of two ISFET gates that can be calibrated with respect to one another eliminates the need for an ion meter to be recalibrated before every use, and allows the ion meter to measure the concentration in the solution over an extended period of time.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: April 5, 2016
    Assignee: Sentient Technologies, Inc.
    Inventors: Mark Bain, Frederick Quincy Johnson
  • Patent number: 9291571
    Abstract: An ammonia gas detection apparatus includes an ammonia sensor that is configured to detect an ammonia gas in a gas stream and to generate a first output signal when the ammonia gas is detected in the gas stream. The ammonia sensor does not detect the ammonia gas in the gas stream when the gas stream further includes an interference gas that disrupts operation of the ammonia sensor. A discoloration gauge includes a reaction solution that changes from a first color to a second color responsive to exposure to the ammonia gas in the gas stream, regardless of the presence of the interference gas, and a detector that generates a second output signal responsive to the reaction solution changing from the first color to the second color. A communication interface outputs the first and second output signal to a host computer that detects presence of the ammonia gas.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: March 22, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sungman Kim, Jin Ha Jeong, Jongsan Kim, Ronald Myungsup Shim
  • Patent number: 9274076
    Abstract: An aspect includes a low slope electrode device, including: at least one electrode; at least one container at least partially enclosing the at least one electrode and having at least one ion sensitive region; an external buffer container having at least one separating element that separates said at least one ion sensitive region into: a first ion sensitive area separating an internal buffer solution bathing the at least one electrode and an external sample solution; and a second ion sensitive area separating the internal buffer solution bathing the at least one electrode and an external buffer solution; wherein the at least one separating element, the first ion sensitive area, and the second ion sensitive area establish a charge flow circuit. Other aspects are described and claimed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 1, 2016
    Assignee: Hach Company
    Inventor: Karl Lewis King
  • Patent number: 9209631
    Abstract: A method for charging a metal-air battery pack at the maximum possible rate while maintaining an ambient oxygen concentration below a preset concentration is provided, thereby minimizing the risks associated with generating oxygen during the charging cycle.
    Type: Grant
    Filed: September 22, 2012
    Date of Patent: December 8, 2015
    Assignee: Tesla Motors, Inc.
    Inventors: Weston Arthur Hermann, Jeffrey Brian Straubel, David G. Beck
  • Patent number: 9201037
    Abstract: The presently disclosed subject matter relates to a microfluidic device for measuring an amount of a molecular species in a sample. The device comprises a body and an electrode assembly, the electrode assembly comprising at least one electrode coupled to the body. The device also includes a gas permeable membrane disposed on at least one electrode and a detector for measuring a current at each of the electrodes. Further, the device comprises a channel defined between a substantially planar substrate and planar cover glass. The presently disclosed subject matter also relates to methods of making the microfluidic device.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: December 1, 2015
    Inventors: Mark Schoenfisch, Benjamin Privett, John Ramsey, William Henley
  • Patent number: 9080242
    Abstract: The present techniques provide systems and methods for mounting an electrolyzer stack in an outer shell so as to allow for differential thermal expansion of the electrolyzer stack and shell. Generally, an electrolyzer stack may be formed from a material with a high coefficient of thermal expansion, while the shell may be formed from a material having a lower coefficient of thermal expansion. The differences between the coefficients of thermal expansion may lead to damage to the electrolyzer stack as the shell may restrain the thermal expansion of the electrolyzer stack. To allow for the differences in thermal expansion, the electrolyzer stack may be mounted within the shell leaving a space between the electrolyzer stack and shell. The space between the electrolyzer stack and the shell may be filled with a non-conductive fluid to further equalize pressure inside and outside of the electrolyzer stack.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: July 14, 2015
    Assignee: General Electric Company
    Inventor: Richard Scott Bourgeois
  • Patent number: 9068869
    Abstract: A magnetic flowmeter includes a pipe with a non-conductive PTFE liner, magnetic coils to generate a magnetic field, and electrodes in contact with the fluid on opposite sides of the pipe. The electrodes comprise conductive PTFE patch electrodes bonded to the non-conductive PTFE liner so that an inner end of each patch electrode is exposed to fluid flowing through the interior pipe and an outer end of each patch electrode is aligned with an electrode hole in the pipe.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: June 30, 2015
    Assignee: Rosemount Inc.
    Inventors: Joseph Alan Smith, Stephen Richard Yingst, Nelson Mauricio Morales
  • Publication number: 20150144486
    Abstract: A polymeric film composition and a non-enzymatic glucose sensor including the functional polymeric film are provided. The polymeric film composition includes polyurethane and perfluorosulfonic acid polymer.
    Type: Application
    Filed: November 26, 2014
    Publication date: May 28, 2015
    Applicants: INSTITUTE FOR RESEARCH & INDUSTRY COOPERATION, PNU, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chulho CHO, Yoon-Bo SHIM, Jaehong KIM, Suntae JUNG, Seongje CHO, Jaegeol CHO
  • Publication number: 20150129435
    Abstract: An apparatus is disclosed for measuring the total organic content of an aqueous stream. The apparatus comprises a platinum electrode for measuring CO2 in an aqueous stream. Methods for measuring the total organic content of an aqueous stream are also disclosed. The methods comprise providing an aqueous stream with oxidized organics therein; providing a platinum electrode, contacting the aqueous stream with the platinum electrode; applying cathodic potential followed by an anodic voltammetric sweep to the platinum electrode, and measuring the amperometric response of the platinum electrode. An apparatus for oxidizing organics in aqueous stream in an aqueous stream is also disclosed.
    Type: Application
    Filed: December 14, 2012
    Publication date: May 14, 2015
    Inventors: Krzysztof Franaszczuk, Mariem-Ruth Rosario-Canales
  • Publication number: 20150122649
    Abstract: A sensor with a sensor housing or body, a plastic molded table positioned in the sensor housing; and a counter electrode carried on a first end of the table.
    Type: Application
    Filed: October 3, 2014
    Publication date: May 7, 2015
    Inventors: Paul Christopher Westmarland, Martin Jonathan Kelly, John Chapples, Neils Richard Stewart Hansen, Arkadiusz Edward Majczak, Stuart Alistair Harris
  • Patent number: 9011658
    Abstract: The present invention relates to a sampling plate. In particular the invention relates to a sampling plate for measuring certain selected properties of a liquid sample, such as the glucose levels in a blood sample. Sampling plates of the present invention have a sample zone (20) for receiving a liquid sample and an overflow reservoir (26) linked to the sample zone (20) via an overflow channel (26a), so that excess blood sample can be redirected away from the sample zone (20) and contained.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: April 21, 2015
    Assignee: Jabil Circuit (Singapore) Pte, Ltd.
    Inventor: Matthew Robert Bryan
  • Publication number: 20150068898
    Abstract: A measuring membrane for an optochemical or amperometric sensor for determining or monitoring an analyte located in a medium, comprising a substrate material and a sensor element, which has at least one functional layer with a sensor-specific substance. The sensor element is embedded completely in a matrix, and the matrix is composed of a material, which at least in a portion facing the medium and adjoining the sensor element is permeable for the analyte.
    Type: Application
    Filed: September 10, 2014
    Publication date: March 12, 2015
    Inventors: Christian Fanselow, Andreas Lobbert
  • Publication number: 20150027906
    Abstract: An ammonia sensor that includes an ionic liquid impregnated sensing electrode (anode) and a cathode separated by a membrane. During operation, in the presence of ammonia, the anode and cathode generate current manifesting the electrochemical reaction of ammonia in the sensing electrode. Ionic liquids distributed in the ionomer film in the gas diffusion electrodes ensure the reactivity under wide range of environment conditions while maintaining the ability of the device to quantify ammonia concentration in the environment. The sensor can therefore sustain long time operation without internal humidification due to the non-volatility of the ionic liquids.
    Type: Application
    Filed: July 24, 2013
    Publication date: January 29, 2015
    Applicant: Hamilton Sundstrand Corporation
    Inventors: Lei Chen, Hsien-chi W. Niu, Joseph V. Mantese
  • Publication number: 20150027887
    Abstract: Matrix materials such polymers derivatives to contain a redox active material can be used to form electrodes and probes suitable for use in pH meters and other analyte sensing devices.
    Type: Application
    Filed: January 24, 2013
    Publication date: January 29, 2015
    Inventor: Eric Lee
  • Publication number: 20150021180
    Abstract: A proton conductive film, a method of producing the proton conductive film, and a highly sensitive humidity sensor are provided. The proton conductivity (room temperature, 95% RH) of the proton conductive film is 3×10?21 Scm?1 or more, and the proton conductive film is usable under a neutral-solvent atmosphere. A highly proton conductive polymer film made of an organic/metallic hybrid polymer film including: one or more metal ions selected from a group consisting of Fe ion, Co ion, Ru ion, Zn ion, and Ni ion; and bis(terpyridyl)benzene, is used.
    Type: Application
    Filed: July 26, 2013
    Publication date: January 22, 2015
    Inventors: Masayoshi Higuchi, Rakesh Kumar Pandey, Satoshi Moriyama
  • Publication number: 20150014167
    Abstract: The present invention is directed to electrochemical gas sensors for the detection of combustible, flammable or toxic gases and to catalyst-coated membranes (CCMs) used therein. The gas sensor comprises at least one solid anion exchange membrane (AEM), a sensing electrode and a counter electrode. The sensing electrode comprises catalytically active material and anionic ionomer material, the weight ratio between the catalyst material and the anionic ionomer material in the sensing electrode is in the range of 3/1 to 99/1, preferably in the range of 4/1 to 30/1. Due to the use of anion exchange ionomer materials, the sensor can be made less expensive and suitable for high volume production. When applied for the detection of CO, the sensor shows good CO selectivity S(CO/H2) in the presence of hydrogen.
    Type: Application
    Filed: March 14, 2013
    Publication date: January 15, 2015
    Applicant: SOLVICORE GMBH & CO. KG
    Inventors: Holger Dziallas, Jan Byrknes, Christian Eickes, Alessandro Ghielmi
  • Publication number: 20150014165
    Abstract: A monochloramine microsensor includes an elongated housing defining a central axis and an open interior and having a capillary opening at one end. A semi-permeable membrane covers the capillary opening, the semi-permeable membrane allowing diffusion of chloramines there-through while preventing water from entering into the interior of the housing. A chloramine sensitive element in the form of a wire, fiber or nanotube is mounted within the housing, the chloramine sensitive element, when used in conjunction with an anode, outputs current in an amount proportional to the concentration of chloramine present in a liquid sample in which the chloramine sensitive element is immersed. The chloramine sensitive element extends along a length of the central axis to a first end adjacent to and spaced from the semi-permeable membrane. The chloramine sensitive element is a gold wire, a platinum wire, a carbon fiber or a carbon nanotube.
    Type: Application
    Filed: July 11, 2013
    Publication date: January 15, 2015
    Inventors: Jonathan G. PRESSMAN, Woo Hyoung LEE, David G. WAHMAN
  • Publication number: 20150014166
    Abstract: Provided is a galvanic cell type oxygen sensor including a positive electrode, a negative electrode, an electrolyte solution, and a first oxygen permeable membrane, wherein the concentration of oxygen detected before ordinary use of the sensor is controlled into the range of 0.1 to 4.0% by volume both inclusive, or the output voltage of the sensor before ordinary use of the sensor is controlled into the range of 2.5 to 20% both inclusive of the output voltage thereof at the time of the ordinary use.
    Type: Application
    Filed: July 11, 2014
    Publication date: January 15, 2015
    Inventor: Naohisa Kitazawa
  • Publication number: 20150001436
    Abstract: An oxide represented by Formula 1: (Sr2-xAx)(M1-yQy)D2O7+d, ??Formula 1 wherein A is barium (Ba), M is at least one selected from magnesium (Mg) and calcium (Ca), Q is a Group 13 element, D is at least one selected from silicon (Si) and germanium (Ge), 0?x?2.0, 0<0?1.0, and d is a value which makes the oxide electrically neutral.
    Type: Application
    Filed: January 16, 2014
    Publication date: January 1, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hee-jung PARK, Chan KWAK, Tae-gon KIM, Sang-mock LEE, Doh-won JUNG
  • Publication number: 20140374251
    Abstract: Disclosed is a pH and conductivity sensor including a carrier comprising a plurality of conductive tracks and an exposed conductive area defining a reference electrode connected to a first track of said plurality of conductive tracks, a sensing device mounted on the carrier and connected to at least a second track of said plurality of conductive tracks, the sensing device including an exposed surface that is sensitive to H+ concentrations, and a plurality of electrodes adjacent to the exposed surface, an encapsulation covering the carrier, said encapsulation including a first cavity exposing a surface of the sensing device, and a second cavity exposing the exposed conductive area.
    Type: Application
    Filed: July 30, 2014
    Publication date: December 25, 2014
    Inventors: Dimitri Soccol, Matthias Merz
  • Patent number: 8916037
    Abstract: An instrument and method for accurately measuring target analyte levels is a gas sample over an extended range. The instrument includes (i) a sensor effective for detecting the analyte, and (ii) a barrier film having limited permeability for the analyte covering the inlet orifice on the sensor for reducing the flux of analyte into the sensor. The method involves (a) sensing the flux of target analyte passing through the barrier film and into sensing contact with the sensor, and (b) reporting a concentration of analyte by multiplying a concentration value previously correlated to the sensed flux by the flux reduction factor of the barrier film.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: December 23, 2014
    Assignee: Mocon, Inc.
    Inventors: Daniel W. Mayer, Michael D. Howe
  • Patent number: 8894832
    Abstract: The present invention relates to a sampling plate. In particular the invention relates to a sampling plate for measuring certain selected properties of a liquid sample, such as the glucose levels in a blood sample. Sampling plates of the present invention have a sample zone (20) for receiving a liquid sample which is surrounded by an air porous body (4). The air porous body (4) acts to receive air from the sample zone (20) as it is displaced by an incoming liquid sample, thereby allowing efficient spreading of the liquid sample.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: November 25, 2014
    Assignee: Jabil Circuit (Singapore) Pte, Ltd.
    Inventor: Matthew Robert Bryan
  • Publication number: 20140339079
    Abstract: The ionophore and polymer membrane selective for aluminum (III) ion provide an ionophore that is selective for aluminum (III) ion [Al3+]. The ionophore is diethyl (2-azobenzoic acid) malonate, which has the structure: The ionophore may be used as a dopant in a polymer membrane formed from a polymer matrix, e.g., poly (vinyl chloride) (PVC), and that may also include a plasticizer, such as dioctylphthalate (DOP) and o-nitrophenylloctyl ether (o-NPOE). The polymer membrane may be incorporated into an ion selective electrode (ISE) that can be used as a potentiometric sensor for the detection of Al3+ ions in wastewater.
    Type: Application
    Filed: May 17, 2013
    Publication date: November 20, 2014
    Applicant: UMM AL-QURA UNIVERSITY
    Inventors: AMR LOTFY SABER HEFNY, ABD EL-SHAFEY AHMED
  • Patent number: 8877025
    Abstract: An electrochemical test cell, containing an anode comprising a metal as an active component; a cathode comprising a porous chemically inert tube containing an active material compatible with the metal of the anode; and an electrolyte; wherein the only metal in contact with the electrolyte is the metal of the anode, is provided. This test cell is useful in a method to evaluate various combinations of materials for suitability as a combination for preparation of a battery.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: November 4, 2014
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Hee Soo Kim, John Muldoon
  • Publication number: 20140318985
    Abstract: A coated-wire potentiometric sensor comprising an electronically conducting substrate electrode coated with an ionically conductive sensing layer and an outermost surface consisting of or comprising in and/or on a first molecular species which is capable of reversibly adsorbing a second molecular species and a method for measuring the affinity between a first molecular species and a second molecular species comprising the steps of: providing a potentiometric sensor of the coated-wire type having an outermost surface; adapting said outermost surface so that consists of or comprises said first molecular species; placing said sensor in a system for the recording of sensorgrams; recording a sensorgram of the adsorption of a second molecular species on said first molecular species of or comprised in and/or on said adapted outermost surface.
    Type: Application
    Filed: April 16, 2014
    Publication date: October 30, 2014
    Applicant: Universiteit Antwerpen
    Inventors: Karolien DE WAEL, Lucien Nagels, Guido Van Camp
  • Publication number: 20140318990
    Abstract: A system for measuring pH includes a substrate and a sensor medium on the substrate. The sensor medium includes at least one oxidized carbon nanostructure and optionally at least one composition immobilized on the at least one oxidized carbon nanostructure. The at least one composition has at least one property that depends on pH. The system further includes at least one measurement system to measure a property of the sensor medium.
    Type: Application
    Filed: July 11, 2012
    Publication date: October 30, 2014
    Inventor: Alexander Star
  • Patent number: 8845871
    Abstract: An electrochemical oxygen sensor includes a micro-porous plastic membrane supported on a sealing disk and located between a gas inflow port and the sensor's electrolyte. The membrane and disk minimize thermal shock effects due to using the sensor at a first location, at a first temperature, and then moving it to a second location at a different temperature.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: September 30, 2014
    Assignee: Honeywell International Inc.
    Inventors: John Chapples, John Anthony Tillotson, Ian McLeod, Martin Williamson
  • Patent number: 8845798
    Abstract: A particulate matter detecting apparatus for an internal combustion engine that can estimate a discharge amount of the particulate matter accurately. The particulate matter detecting apparatus for an internal combustion engine, comprises: a sensor disposed at an exhaust passage of the internal combustion engine, the sensor including a pair of electrodes for detecting particulate matter in an exhaust gas; means for estimating a discharge amount of the particulate matter based on an output of the sensor, and means for acquiring a predetermined parameter that serves as an index for a rate with which the particulate matter in the exhaust gas is deposited on the sensor. The discharge amount estimating means corrects an estimated value of the discharge amount of the particulate matter based on the parameter acquired by the parameter acquiring means.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: September 30, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroki Nishijima
  • Patent number: 8840552
    Abstract: The present invention provides a biointerface membrane for use with an implantable device that interferes with the formation of a barrier cell layer including; a first domain distal to the implantable device wherein the first domain supports tissue attachment and interferes with barrier cell layer formation and a second domain proximal to the implantable device wherein the second domain is resistant to cellular attachment and is impermeable to cells. In addition, the present invention provides sensors including the biointerface membrane, implantable devices including these sensors or biointerface membranes, and methods of monitoring glucose levels in a host utilizing the analyte detection implantable device of the invention. Other implantable devices which include the biointerface membrane of the present invention, such as devices for cell transplantation, drug delivery devices, and electrical signal delivery or measuring devices are also provided.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: September 23, 2014
    Assignee: DexCom, Inc.
    Inventors: James H. Brauker, Mark Shults, Mark A. Tapsak
  • Patent number: 8828202
    Abstract: A dissolved oxygen sensor for use with a single use-bioreactor/container is provided. The bioreaction vessel includes a plastic wall defining a bioreaction chamber therein, and having an aperture therethrough. A membrane holder is attached to an inner surface of the plastic wall. The membrane holder has a cylindrical portion passing through the aperture. A sensor window membrane is coupled to the membrane holder proximate the aperture. The sensor window membrane has a high oxygen permeability, but forms a water-tight seal with the membrane holder.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: September 9, 2014
    Assignee: Rosemount Analytical Inc.
    Inventor: Chang-Dong Feng
  • Publication number: 20140246316
    Abstract: A cathodic material for use in an electrochemical sensor comprising: a carbonaceous material and an oxygen reduction catalyst associated with the carbonaceous material; and wherein the cathodic material does not materially exhibit catalytic activity for the oxidation of carbon monoxide. Associated electrochemical sensors may include an anode and cathode that are disposed upon the same or opposite sides of an ion exchange membrane and/or exposed to the same or different gaseous environments.
    Type: Application
    Filed: May 15, 2014
    Publication date: September 4, 2014
    Applicant: Gentex Corporation
    Inventor: Joel C. Nemes