Including Means For Adsorbing Or Absorbing Gas Into Or Onto Liquid Or Solid Media Patents (Class 422/88)
  • Patent number: 11480555
    Abstract: A sensor system includes an electrical circuit having plural leads coupled with one or more sensing regions. The sensing regions include gaps having sensing materials that detect an analyte of interest. The gaps close responsive to the sensing material corresponding to the gaps detecting the analyte of interest. One or more processors communicatively coupled with the electrical circuit receive electrical signals from the electrical circuit indicative of the gaps closing responsive to the sensing material of the corresponding gaps detecting the analyte of interest. The electrical circuit is in a closed position in the presence of the analyte of interest. The sensor system is configured to consume an increased amount of power when the electrical circuit is in the closed position relative to the electrical circuit in an open position responsive to the one or more of the gaps closing. A responsive action is determined based on the electrical signals.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: October 25, 2022
    Assignee: General Electric Company
    Inventors: Radislav Alexandrovich Potyrailo, Richard St. Pierre, Emad Andarawis Andarawis
  • Patent number: 11476345
    Abstract: Techniques are disclosed herein for ferroelectric-based field-effect transistors (FETs) with threshold voltage (VT) switching for enhanced RF switch transistor on-state and off-state performance. Employing a ferroelectric gate dielectric layer that can switch between two ferroelectric states enables a higher VT during the transistor off-state (VT,hi) and a lower VT during the transistor on-state (VT,lo). Accordingly, the transistor on-state resistance (Ron) can be maintained low due to the available relatively high gate overdrive (Vg,on?VT,lo) while still handling a relatively high maximum RF power in the transistor off-state due to the high VT,hi ?Vg,off value. Thus, the Ron of an RF switch transistor can be improved without sacrificing maximum RF power, and/or vice versa, the maximum RF power can be improved without sacrificing the Ron. A ferroelectric layer (e.g., including HfxZryO) can be formed between a transistor gate dielectric layer and gate electrode to achieve such benefits.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: October 18, 2022
    Assignee: Intel Corporation
    Inventors: Han Wui Then, Sansaptak Dasgupta, Marko Radosavljevic
  • Patent number: 11428669
    Abstract: An object of the present invention is to provide a resonant sensor having excellent sensitivity and selectivity with respect to a component to be detected that is contained at a low concentration in the system. A resonant sensor of the present invention has a receiving layer that contains a polymer having a repeating unit represented by Formula (1). In Formula, R1 represents an alkyl group. A plurality of R1's may be the same as or different from each other. R2 represents a hydrogen atom, an alkyl group, or an aryl group.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: August 30, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Koji Hironaka, Fumihiko Mochizuki, Koji Takaku
  • Patent number: 11397160
    Abstract: Provided are a gas sensor, a gas detection device, a gas detection method and a device provided with the gas detection device, capable of improving gas detection performance. The gas detection device is provided with a gas sensor comprising a thermosensitive resistance element and a porous gas molecule adsorptive material thermally bonded to the thermosensitive resistance element that releases specified gas molecules due to heating and cooling, and a power supply control unit that heats and cools the thermosensitive resistance element by controlling the supply of power thereto. The gas detection method comprises a heating step for putting the porous gas molecule adsorptive material in a heated state and a detecting step for detecting a specific gas due to the temperature change in the thermosensitive resistance element by heating.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: July 26, 2022
    Assignee: SEMITEC Corporation
    Inventors: Toshiyuki Nojiri, Dezhi Cheng
  • Patent number: 11067506
    Abstract: A hydrogen storage metal is disposed on a base material in a predetermined shape and a predetermined size such that hydrogen is detected based on surface plasmon resonance induced by incident light. The hydrogen storage metal is formed of a film body containing palladium and a noble metal. A spectrum of the light having passed through the hydrogen storage metal in which hydrogen is stored has a peak in a wavelength band separated from an absorption spectrum C1 of carbon dioxide with respect to the light and an absorption spectra H1 to H3 of water with respect to the light.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: July 20, 2021
    Inventors: Yoshiaki Nishijima, Takeshi Iwai, Isao Hirano
  • Patent number: 11015856
    Abstract: A refrigerator may include a smell sensor for detecting smell in the refrigerator; a deodorizer for adsorbing, sterilizing, and deodorizing air in the refrigerator; and a controller for calculating smell values based on the detected smell at the smell sensor, changing a deodorizing mode according to the detected smell, and controlling the deodorizer.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: May 25, 2021
    Inventors: Eunjeong Kim, Jeongyon Kim, Yoojin Jung
  • Patent number: 11009489
    Abstract: In gas chromatography (GC), a sample is introduced into a flow of carrier gas and the mixture is driven through a heated GC column to acquire chromatographic data from the sample. During this time, the column is heated from an initial temperature to a final temperature. Subsequently, the column is cooled according to a cooling program. The cooling program may include a first cooling ramp, a subsequent isothermal hold, and a subsequent second cooling ramp. Alternatively, while the column is cooled down the flow of carrier gas through the column may be slowed down or ceased for a period of time, after which the flow of carrier gas through the column may be resumed at the original flow rate in preparation for processing another sample. Controlling column temperature and/or flow in this manner may be effective for reducing column bleed carryover and/or the effects thereof.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: May 18, 2021
    Assignee: Agilent Technologies, Inc.
    Inventors: Paul C. Dryden, Sammye Elizabeth Traudt, Robert C. Henderson
  • Patent number: 10948451
    Abstract: A carbon electrode having a functional moiety that forms a charge-transfer complex with a nitro-containing compound covalently attached to a surface of the electrode, and a process of preparing such an electrode are provided. Also provided are sensing systems integrating the carbon electrode and methods utilizing same for electrochemical detection of nitro-containing compounds.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: March 16, 2021
    Assignee: Ramot at Tel-Aviv University Ltd.
    Inventors: Fernando Patolsky, Vadim Krivitsky, Boris Filanovsky
  • Patent number: 10802008
    Abstract: The present invention generally relates to bimetal-doped, metal oxide-based sensors and platforms and integrated chemical sensors incorporating the same, methods of making the same, and methods of using the same.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: October 13, 2020
    Assignee: VAON, LLC
    Inventors: Vladimir Dobrokhotov, Alexander Larin
  • Patent number: 10788406
    Abstract: A chemical substance concentrator includes a channel allowing a sample containing a chemical substance to flow in a flowing direction in the channel, and a cell wall partitioning the channel into adsorption cells. Each of adsorption cells includes first and second electrodes disposed on the cell wall apart from each other and an adsorption device that adsorbs the chemical substance. The adsorption device contains metal oxide. The absorption device is disposed at a position contacting the first electrode and the second electrode such that the first and second electrodes are electrically connected via the adsorption device.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: September 29, 2020
    Inventor: Hiroaki Oka
  • Patent number: 10705059
    Abstract: The present invention relates to a gas sample injection apparatus for gas chromatography analysis comprising: a gas collecting tube for collecting the gas inside a cell and regulating it with an open/close valve to discharge a portion of the collected gas as a gas sample; a gas sampling loop for collecting the gas sample injected into a gas chromatograph; a first switching valve for regulating an injection of the gas sample filled in the gas sampling loop into the column of the chromatography with a carrier gas; a second switching valve connected to the gas collection tube and for regulating a diffusion of the gas sample into the gas sampling loop; and a vacuum pump for vacuum-depressurizing the gas sampling loop, and an injection method using the same.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: July 7, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jong-Mo Jung, Sung-Won Hong, Jong-Hoa Ok
  • Patent number: 10639687
    Abstract: Devices and techniques related to landfill gas extraction are disclosed. A technique for controlling extraction of landfill gas from a landfill through a gas extraction system is described. The method may include measuring a plurality of values indicating conditions associated with the landfill; computing, based at least in part on the plurality of values and on a model of the landfill, a predicted future state of the landfill; determining, based at least in part on the predicted future state of the landfill, one or more control parameters for one or more respective control devices configured to control operation of the gas extraction system; applying the one or more control parameters to the one or more respective control, and with the one or more control devices, controlling extraction of the landfill gas from the landfill based, at least in part, on the one or more respective control parameters.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: May 5, 2020
    Assignee: Loci Controls, Inc.
    Inventors: Andrew Campanella, Melinda Sims, Nathan Pallo, Ian Martin
  • Patent number: 10641752
    Abstract: A compact explosive detecting system collects explosive residues in the form of vapor powder. The residues are accumulated on a desorber which is subjected to pyrolysis to release a gaseous sample. The sample is pumped to a detecting system through a metering valve. A luminol cell reacts with the gaseous sample to create chemiluminescence, the light output of which is measured by a photo multiplier tube. The light intensity is indicative of the amount of explosive present. Based on the amount of explosive present, a metering valve is adjusted to pass the gaseous sample into a highly sensitive metal oxide sensor array to detect NO2 from nitrogen containing explosive and CO/CO2 from non nitrogen containing explosive. The metal oxide sensor array reliably selects explosives from those compounds indicating chemiluminescence.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: May 5, 2020
    Inventor: Dao Hinh Nguyen
  • Patent number: 10571420
    Abstract: A thin film gas sensor device includes a substrate, a first electrode supported by the substrate, a second electrode supported by the substrate, and a gas-sensitive structure. The gas-sensitive structure is supported by the substrate and is electrically connected to the first and second electrodes. The gas sensitive structure includes a plurality of thin film layers of a first material vertically interleaved with a plurality of thin film layers of a second material. The first and second materials are mutually catalytic materials.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: February 25, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Ashwin K. Samarao, Gary O'Brien
  • Patent number: 10564086
    Abstract: A measuring apparatus includes a concentration measuring unit that measures a particle number concentration of a particle in gas; a humidity measuring unit that measures humidity of a surrounding to which the particle is exposed when the concentration measuring unit measures the particle number concentration; a first case in which the concentration measuring unit and the humidity measuring unit are accommodated, the first case having a first inlet and a first outlet; and a first exhausting unit that exhausts the gas in the first case from the first outlet; wherein the humidity measuring unit is disposed upstream of the concentration measuring unit in a flow path of the gas from the first inlet to the first outlet.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: February 18, 2020
    Inventor: Ryozo Takasu
  • Patent number: 10495623
    Abstract: A gas analysis system for analyzing dissolved gas in electrical insulating fluid includes a trap that selectively captures or releases one or more gases, a temperature control device for controlling a temperature of the trap that determining whether the trap is in a gas capture mode or a gas release mode, and a gas sensor for analyzing the gas that was not selectively captured by the trap. The trap may be heated to a first temperature that enables the gas to be adsorbed by the trap, and the trap may be heated to a second temperature that enables the gas to be desorbed by the trap. The gas analysis system may further include a gas flow diverter for directing gas flow past the trap. The captured or released gases may be interfering matrix gases. A method and analyzer for analyzing dissolved gas in an electrical insulating fluid are also disclosed.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: December 3, 2019
    Assignee: Serveron Corporation
    Inventors: John Hinshaw, Steven Mahoney, Thomas Waters
  • Patent number: 10463755
    Abstract: An instrument reprocessor for cleaning, disinfecting, and/or sterilizing a medical instrument is disclosed. To reprocess instruments having one or more channels defined therein, the reprocessor can include one or more flow control systems configured to control a flow of fluid through each channel. In various embodiments, a flow control system can include a differential pressure sensor and a proportional valve for controlling the fluid flow in a channel. The reprocessor can also include, one, a fluid circulation pump which can be configured to supply the flow control systems with fluid and, two, a system for controlling the pressure of the fluid supplied to the flow control systems. The reprocessor can also include a system for supplying a metered amount of fluid to the fluid circulation system. The system can include a reservoir having a fluid height sensor to monitor the amount of fluid therein and a pump configured to supply the reservoir with fluid.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: November 5, 2019
    Assignee: ASP Global Manufacturing GmbH
    Inventors: Nick N. Nguyen, Ujjal Bhaumik
  • Patent number: 10443623
    Abstract: An engine bleed air system of an aircraft, comprising a heat exchanger which comprises a rectangular core with a rectangular outlet section, a cylindrical outlet duct and a transition area between the rectangular outlet section of the rectangular core and the cylindrical outlet duct, and at least a downstream system, further comprising a flow deflector located at least in the cylindrical outlet duct, such that the outlet flow characteristics homogeneity are improved and a particular flow deflection and distribution of the outlet flow is achieved, avoiding the damage of the at least one downstream system. The invention also provides a method for homogenizing the temperature of the outlet flow of a heat exchanger outlet in an engine bleed air system of an aircraft.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: October 15, 2019
    Inventors: Antón Méndez Díaz, Javier Fraile Martin, Neus Busquets More, Jan Barkowsky
  • Patent number: 10342917
    Abstract: Infusion fluid is flowed through a fluid delivery line of an infusion system. Optical signals having different wavelengths are transmitted through the fluid delivery line. The transmitted optical signals having the different wavelengths are received. At least one processor determines whether air or infusion fluid is disposed in the fluid delivery line based on the received optical signals having the different wavelengths.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: July 9, 2019
    Assignee: ICU Medical, Inc.
    Inventors: Gary David Shubinsky, Tamas Ban, Brian G. Markey
  • Patent number: 10329022
    Abstract: An environmental control system (ECS) having contaminants in supply air that flows into an environment includes an outside air contaminant component that senses contaminants in outside air, wherein the outside air contaminant component is upstream of the environment, A recirculated air contaminant component is provided and that senses contaminants in recirculated air supplied by the environment, wherein the recirculated air contaminant component is downstream of the environment. A voltage supply provides a non-linear variable voltage to at least one of the components. A controller is in communication with the components and the voltage supply; wherein, upon a measured resistance, from at least one of the components, that exceeds a threshold, the controller varies at least one of an outside air flow and a recirculated air flow in the ECS.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: June 25, 2019
    Inventors: Richard Bryce Fox, Henry Au, Dacong Weng, Mike Koerner, Dennis Morita
  • Patent number: 10213629
    Abstract: Systems, methods, and devices for an end of service life indicator for a respirator are described herein. For example, a device can include a cartridge containing a filter material and an insert extending through at least a portion of the filter material having a first path with a first opening to provide a sample of air that is representative of a saturation of the filter material and a second path with a second opening configured to provide a filtered sample of the air throughout a service life of the cartridge.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: February 26, 2019
    Assignee: Honeywell International Inc.
    Inventor: Peter Tobias
  • Patent number: 10156585
    Abstract: The invention provides a liquid cell for an atomic force microscope. The liquid cell includes a liquid cell housing with an internal cavity to contain a fluid, a plurality of conductive feedthroughs traversing the liquid cell housing between the internal cavity and a dry side of the liquid cell, a cantilevered probe coupled to the liquid cell housing, and a piezoelectric drive element disposed on the cantilevered probe. The cantilevered probe is actuated when a drive voltage is applied to the piezoelectric drive element through at least one of the conductive feedthroughs. A method of imaging an object in a liquid medium and a method of sensing a target species with the liquid cell are also disclosed.
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: December 18, 2018
    Assignee: Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada, Reno
    Inventors: Jesse D. Adams, Benjamin S. Rogers, Todd A. Sulchek
  • Patent number: 10113983
    Abstract: Disclosed are a highly selective, highly sensitive method and apparatus for detecting vapors from explosives at low concentrations such as 1 part in 1014. Airborne explosives vapors are selectively adsorbed on a spiral-wound platinum or platinum-coated ribbon of a preconcentrator cartridge while trapping of nitrogen oxides is avoided. The vapors are released and partially decomposed to liberate nitric oxide gas by flash-heating of the ribbon, these products may then be pyrolyzed if necessary to complete the liberation of nitric oxide gas, and then the liberated nitric oxide gas is detected, as by chemiluminescent detection. Also described are various systems incorporating the explosives vapor detector such as a walk-through portal, a vehicle sniffer, and a system incorporated into the air-handling apparatus of a building.
    Type: Grant
    Filed: May 9, 1985
    Date of Patent: October 30, 2018
    Inventors: David H. Fine, Freeman W. Fraim, James E. Buckley
  • Patent number: 10043363
    Abstract: A system for detecting low concentrations of specific chemical compounds in the air of an aircraft cabin. The system includes a cabin management system with a processing unit and a user interface and a plurality of sensors. Each sensor is connected to the processing unit of the cabin management system such that data can be transmitted from the sensor to the processing unit. Each sensor is adapted to determine a presence of a first chemical compound in the air of an aircraft cabin and transmit data indicative of the determined presence to the processing unit. The processing unit is adapted to process data indicative of the presence of the first chemical compound received from a sensor of the plurality of sensors and to signal the presence of the first chemical compound to a user via the user interface.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: August 7, 2018
    Assignee: Airbus Operations GmbH
    Inventor: Christian Riedel
  • Patent number: 10024769
    Abstract: A diffusive sampling device (1) comprises a porous hollow diffusion body (3) removably held on a support body (2), an adsorbent body (4) located inside said diffusion body (3), wherein the hollow diffusion body (3) has a cylindrically shaped wall with an upper section comprising a closed upper end and a distal lower section comprising an open lower end and wherein the diffusion body (3) is held on the support body (2) by means of one or more o-rings (7) fixed to its lower section, wherein the adsorbent body (4) is kept in a predetermined place inside the upper section of the diffusion body (3) by way of an elastic means, such as a spring (6). The use of such devices as well as a method for air sampling and monitoring.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: July 17, 2018
    Inventor: Pascual Perez Ballesta
  • Patent number: 10022663
    Abstract: An air separation system includes an air separation module configured to receive feed air and separate the feed air into nitrogen-enriched air and oxygen-enriched air, a nitrogen-enriched air line for transporting the nitrogen-enriched air from the air separation module to a fuel tank for inerting, an oxygen sensing line connected to the nitrogen-enriched air line, a gas adsorption filter located in the oxygen sensing line, and an oxygen sensor downstream of the gas adsorption filter in the oxygen sensing line.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: July 17, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Catherine Thibaud
  • Patent number: 10024825
    Abstract: A workpiece clamping status detection system and method for detecting a clamping state of a clamping device is provided. A clamping device having a clamping surface is configured to selectively clamp a workpiece to the clamping surface. The clamping device may be an electrostatic chuck or a mechanical clamp for selectively securing a semiconductor wafer thereto. A vibration-inducing mechanism is further provided, wherein the vibration-inducing mechanism is configured to selectively vibrate one or more of the clamping device and workpiece. A vibration-sensing mechanism is also provided, wherein the vibration-sensing mechanism is configured to detect the vibration of the one or more of the clamping device and workpiece. Detection of clamping status utilizes changes in acoustic properties, such as a shift of natural resonance frequency or acoustic impedance, to determine clamping condition of the workpiece.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: July 17, 2018
    Assignee: Axcelis Technologies, Inc.
    Inventor: Shu Satoh
  • Patent number: 9989488
    Abstract: An apparatus comprising: a first layer (512) configured to enable a flow of charge carriers from a source electrode (505) to a drain electrode (506); a second layer (513) configured to generate a voltage in response to a physical stimulus, the second layer (513) positioned so that the generated voltage can affect the conductance of the first layer (512); and a third layer (514) positioned between the first (512) and second (513) layers to prevent a flow of charge carriers therebetween. The third layer (514) comprises a material configured to form electric double-layers (516, 517) at the interfaces with the first (512) and second (513) layers in response to the generated voltage. The formation of the electric double-layers (516, 517) enhances the effect of the generated voltage on the conductance of the first layer (512) such that determination of the conductance of the first layer (512) can be used to allow the magnitude of the physical stimulus to be derived.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: June 5, 2018
    Assignee: Nokia Technologies Oy
    Inventors: Stefano Borini, Richard White
  • Patent number: 9932449
    Abstract: A hydrogen sulfide sensor is disclosed. The hydrogen sulfide sensor includes a substrate, a pair of interdigitated electrodes supported by the substrate, and a nanocomposite based sensing layer deposited on the interdigitated electrodes and configured to interact with hydrogen sulfide.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: April 3, 2018
    Assignee: Honeywell Romania s.r.l.
    Inventors: Bogdan-Catalin Serban, Octavian Buiu, Cornel P. Cobianu, Mihai Brezeanu
  • Patent number: 9921226
    Abstract: An interchangeable sensor system is described, including: a microcantilever including a beam anchored at a first end, the beam being free to vibrate on another end, wherein a piezoelectric layer is deposited on a surface of the beam; an input configured to receive a voltage from a voltage source for applying voltage to the piezoelectric layer; and a resonating circuit including: the piezoelectric layer, configured as a capacitor of the resonant circuit; and one or more additional electrical elements; wherein the voltage source is configured to apply a first AC voltage under a first condition for actuating the microcantilever at a first mechanical resonating frequency of the microcantilever and a second AC voltage under a second condition for actuating the microcantilever at a second electrical resonating frequency of the resonating circuit. Method of using the sensor system is also described.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: March 20, 2018
    Inventors: Samira Faegh, Nader Jalili, Srinivas Sridhar
  • Patent number: 9885695
    Abstract: In order to be able to prevent analysis accuracy from being reduced by a backward flow of sample gas from dead volume in a cleaning mechanism into a cell at the time of analysis, a gas analysis device has an analysis part that analyzes the sample gas introduced into the cell, gas ports that are arranged toward predetermined regions of gas contact surfaces in the cell, and a piping mechanism that connects the gas ports to a predetermined purge gas source, and blows purge gas from the gas ports toward the predetermined regions at the time of purging. The gas analysis device also has a switching part that switches a connecting destination of the piping mechanism from the purge gas source to a predetermined suction part, and at the time of introducing or analyzing the sample gas, connects the gas ports to the suction source.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: February 6, 2018
    Assignee: Horiba, Ltd.
    Inventors: Shigeru Nakatani, Kenji Hara, Montajir Rahman, Masahiro Nakane
  • Patent number: 9823535
    Abstract: A method of manufacturing a thin film is provided. The method includes providing a plurality of crystalline hexagonal tungsten trioxide particles, size-reducing the crystalline hexagonal tungsten trioxide particles by grinding to produce crystalline hexagonal tungsten trioxide nanostructures, and coating the crystalline hexagonal tungsten trioxide nanostructures onto a substrate to produce a thin film. An electrochromic multi-layer stack is also provided.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: November 21, 2017
    Assignee: Kinestral Technologies, Inc.
    Inventors: John H. Roudebush, Lina Zhu, Daniel Giaquinta, Hugues Duncan, Howard Turner
  • Patent number: 9818937
    Abstract: A miniature oxygen sensor makes use of paramagnetic properties of oxygen gas to provide a fast response time, low power consumption, improved accuracy and sensitivity, and superior durability. The miniature oxygen sensor disclosed maintains a sample of ambient air within a micro-channel formed in a semiconductor substrate. O2 molecules segregate in response to an applied magnetic field, thereby establishing a measurable Hall voltage. Oxygen present in the sample of ambient air can be deduced from a change in Hall voltage with variation in the applied magnetic field. The magnetic field can be applied either by an external magnet or by a thin film magnet integrated into a gas sensing cavity within the micro-channel. A differential sensor further includes a reference element containing an unmagnetized control sample. The miniature oxygen sensor is suitable for use as a real-time air quality monitor in consumer products such as smart phones.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: November 14, 2017
    Inventors: Olivier Le Neel, Ravi Shankar
  • Patent number: 9725308
    Abstract: A MEMS sensor has at least a movable element designed to oscillate at an oscillation frequency, and an integrated measuring system coupled to the movable element to provide a measure of the oscillation frequency. The measuring system has a light source to emit a light beam towards the movable element and a light detector to receive the light beam reflected back from the movable element, including a semiconductor photodiode array. In particular, the light detector is an integrated photomultiplier having an array of single photon avalanche diodes.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: August 8, 2017
    Inventors: Alfio Russo, Massimo Cataldo Mazzillo, Ferenc Nagy
  • Patent number: 9719907
    Abstract: A particulate detection system (1) for detecting the quantity of particulates S in a gas under measurement EG, including a detection section (10), a drive circuit (210, 240), and a control section (230, 202). The detection section (10) has an ion source (11) and a particulate electrification section (12). The drive circuit (210) includes an ion source drive circuit (210) for performing constant current control. The control section (230, 202) includes current convergence determination means S2-S3, S5-S6, and detection start means S8 for starting detection of the quantity of the particulates S using the signal Is, detected by a detection circuit (230), after the gaseous discharge current Id has converged to an allowable range IR.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: August 1, 2017
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Masayuki Motomura, Takeshi Sugiyama, Kazunari Kokubo
  • Patent number: 9709561
    Abstract: Provided is a nanoporous cantilever including a substrate in a shape of a plate, a tip formed at a front end of the substrate, and a nanoporous structure formed on the tip. Due to the nanoporous structure including nanopores and nanochannels formed on the tip, the nanoporous cantilever greatly increases in detection sensitivity for a material to be detected when compared to a cantilever according to a related art, and may obtain a surface-enhanced Raman signal and thus achieve discrimination of a molecule to be detected.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: July 18, 2017
    Inventors: Sung Soo Na, Jinsung Park, Seungjoo Haam, Doyeon Bang
  • Patent number: 9689826
    Abstract: The present invention provides a sensor or a system comprising gold nanoparticles coated with specific organic coatings for diagnosing, staging or monitoring chronic kidney disease.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: June 27, 2017
    Assignee: Technion Research and Development Foundation Ltd.
    Inventors: Hossam Haick, Ophir Marom
  • Patent number: 9671392
    Abstract: The present invention relates to a multisensor array for detection of analytes in the gas phase or in the liquid phase, comprising at least two different chemo-selective compounds represented by the general formula (I) wherein the hetero atoms X1-X4 and the substituents R1-R4 are defined in the specification and the dashed bonds represent independently of each other either a single bond or a double bond. Said chemo-selective compounds are capable of individually changing physicochemical properties when exposed to analytes or analyte mixtures and these changes can be detected by a transducer or an array of transducers. The present invention does also relate to the use of at least two different chemo-selective compounds in a sensor array, a method for preparation of such sensor arrays and the use of said sensor arrays. Furthermore the present invention relates to methods for detecting and identifying analytes or mixtures thereof in the gas phase or in the liquid phase.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: June 6, 2017
    Assignee: Danmarks Tekniske Universitet
    Inventors: Jan Oskar Jeppsen, Natalie Kostesha, Carsten Johnsen, Kent Albin Nielsen, Anja Boisen, Mogens Havsteen Jakobsen
  • Patent number: 9658179
    Abstract: According to an embodiment, a microelectromechanical systems (MEMS) transducer includes a substrate with a first cavity that passes through the substrate from a backside of the substrate. The MEMS transducer also includes a perforated first electrode plate overlying the first cavity on a topside of the substrate, a second electrode plate overlying the first cavity on the topside of the substrate and spaced apart from the perforated first electrode plate by a spacing region, and a gas sensitive material in the spacing region between the perforated first electrode plate and the second electrode plate. The gas sensitive material has an electrical property that is dependent on a concentration of a target gas.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: May 23, 2017
    Assignee: Infineon Technologies AG
    Inventors: Vijaye Kumar Rajaraman, Yonsuang Arnanthigo, Alfons Dehe, Stefan Kolb
  • Patent number: 9528911
    Abstract: The present invention is directed to an analysis system intended to be able to perform a unit setting of values over multi-pieces of analysis-associated data easily and systematically every analysis device, and the analysis system is provided with an analysis device and an information processing device, wherein the information processing device includes: a unit series data storage part adapted to store multi-pieces of unit series data composed by specifying units to be respectively used for values of the multi-pieces of analysis-associated data given and received between the analysis device and the information processing device; a selection input receiving part adapted to receive a selection input of any of the multi-pieces of the unit series data stored in the unit series data storage part; and a data output part adapted to output each of the values of the analysis-associated data in the unit specified to the selected unit series data.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: December 27, 2016
    Assignee: Horiba, Ltd.
    Inventors: Katsumi Uratani, Tsutomu Misogi
  • Patent number: 9523665
    Abstract: A gas sensor, for example for use in air conditioning systems, has a gas-sensitive layer that includes a material that is sensitive to carbon dioxide. The material has a cross-sensitivity to air humidity. This is compensated for by measurement at two different temperatures. The measured gas values are calculated together, with the assumption that the sensitivity of the gas sensor to carbon dioxide exhibits a different curve with the temperature of the gas sensor than the sensitivity to water.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: December 20, 2016
    Inventors: Maximillian Fleischer, Roland Pohle, Stefan Stegmeier, Oliver Von Sicard
  • Patent number: 9459223
    Abstract: The method for chemical vapor identification using swelling-based sensors uses an apparatus that having a first gas chamber including a gas inlet port for inletting a hydrocarbon vapor to be analyzed; a second gas chamber having a hydrocarbon vapor outlet port for exiting the vapor; a chemical sensor placed inside the first and the second gas chambers; and a thermometer placed inside the first and the second gas chambers for measuring the internal temperature; wherein the second gas chamber is placed at a lower temperature compared with the first chamber; and wherein the first gas chamber is in communication with the second chamber by a pipe for transmitting the hydrocarbon vapor from the first chamber to the second chamber.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: October 4, 2016
    Inventors: Hadi Rasam Alqahtani, Martin F. Grell
  • Patent number: 9423388
    Abstract: An explosive detection apparatus capable of maintaining high availability even in an environment containing a large amount of foreign substances is achieved. The explosive detection apparatus includes means for sequentially replacing a plurality of collection thermal vaporization filters 2 for collecting, heating, vaporizing particles, which have been prepared in advance. The explosive detection apparatus also includes a preheating unit 52 for preheating an unused filter, and sealing is performed by a seal portion between the plurality of filters.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: August 23, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Koichi Terada, Masakazu Sugaya, Hideo Kashima, Hisashi Nagano, Yasuaki Takada, Hiromi Satou
  • Patent number: 9412573
    Abstract: An improved method of extraction, detection, and characterization of a vapor from an explosive, a taggant in an explosive, a controlled substance, a biohazard, and mixtures thereof uses a new and improved SPME device for extraction and ion mobility spectrometry for detection and characterization. The new and improved SPME device has an increased capacity to sorb a target vapor. The increased sorption of vapor provides for more accurate detection by an ion mobility spectrometer. A SPME device having increased surface area may be exposed to an atmosphere in an enclosure containing a test object or a volume of gas that was in contact with the test object to allow for sorption of the target vapor and then introduced into an IMS for more accurate detection and characterization of the vapor due to the increased sorption of the vapor by the SPME device described herein.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: August 9, 2016
    Inventors: Jose Almirall, Jeannette Perr, Patricia Guerra
  • Patent number: 9399912
    Abstract: The invention provides a device and method to quantitatively measure concentrations of volatile organic compound vapors below the ground surface using a preferably “fully” passive device that is placed in a drilled or bored hole for a specified period of time, wherein the sampler constrains the uptake rate to match values that minimize or eliminate the starvation effect and provide acceptable sensitivity for most soil types as calculated via mathematical models.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: July 26, 2016
    Assignee: Geosyntec Consultants, Inc.
    Inventors: Todd Arthur McAlary, Suresh Seethapathy, Tadeusz Gorecki
  • Patent number: 9329202
    Abstract: A method is presented for calibrating a cantilever, such as a scanning probe microscope cantilever (SPM cantilever). The cantilever to be calibrated comprises at least a first and a second layer having a mutually different thermal expansion coefficient, the method comprising the steps of: controllably causing a temperature distribution along the cantilever, measuring a spatial state of the cantilever, computing a mechanical property from the observed spatial state caused by controllably changing the temperature. Also a calibration arrangement and a scanning probe microscope provided with the calibration arrangement are presented.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: May 3, 2016
    Inventor: Hamed Sadeghian Marnani
  • Patent number: 9279748
    Abstract: A disseminated vapor capture device for challenging a gas sampling apparatus with a vapor stream, includes an inlet being adapted for connection to a vapor generating apparatus producing a vapor stream containing target particles or analytes, an outer shell enclosing an inner chamber in communication with the inlet, the inner chamber being adapted for passing the vapor stream therethrough, an outlet being adapted for connection to a vacuum source, the outlet being in communication with the inner chamber for passing the vapor stream out of the inner chamber, and at least one sampling port in communication with the inner chamber, the at least one sampling port each being configured for coupling engagement with a gas sampling apparatus.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: March 8, 2016
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Thomas M. Hughes, Kwok Y Ong
  • Patent number: 9267908
    Abstract: The present invention generally provides devices, systems, and methods for determination of one or more analytes. The analyte may be determined by monitoring, for example, a change in an electrical, optical, or other signal of a material (e.g., sensor material) present within the device, upon exposure to the analyte. The signal may be an electrical and/or optical property of the device. In some cases, devices described herein may be useful as sensors for the determination of analytes such as explosives, chemical warfare agents, and/or toxins.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: February 23, 2016
    Assignee: Massachusetts Institute of Technology
    Inventors: Fei Wang, Timothy M. Swager
  • Patent number: 9250119
    Abstract: An apparatus and method is provided for characterizing adhesive bonding using an acoustic wave MEMS sensor. The sensor can consist of a silicon substrate, a thin aluminum nitride film on top of the substrate and a thin gold film above the aluminum nitride layer. An adhesive layer is added on top of the sensor and the dispersion property of acoustic waves in the layered configuration can be utilized for bonding integrity characterization. A wave dispersion model is developed to study the effect of changing the interface stiffness on the wave dispersion profile and to investigate the sensitivity of different sensor configurations. The results of the model illustrate that the dispersion profile shifts in the direction of decreasing wave velocity as the interface stiffness decreases.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: February 2, 2016
    Assignees: The Governors of the University of Alberta, Alberta Health Services
    Inventors: Mohamed Mahmoud Taher El Gowini, Walied Ahmed Mohamed Moussa, Edmond Hok Ming Lou
  • Patent number: 9091669
    Abstract: A gas sensor is used for detecting gas in the air, especially formaldehyde. The sensor comprises at least one gas-sensitive zone which is preferably a layer on a substrate and which contains the ternary compound In4Sn3O12 as the gas-sensitive material. In order to produce the gas-sensitive zone, a flame spray pyrolysis (FSP) is carried out, organometallic compounds of indium and tin being used as the reactants. The gas sensor is especially suitable for online gas detection.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: July 28, 2015
    Assignees: Eberghard Karls Universitat Tubingen, Universitat Breman
    Inventors: Nicolae Barsan, Udo Weimar, Jens Kemmler, Lutz Maedler, Suman Pokhrel