Detector Detail Patents (Class 73/31.05)
  • Patent number: 11371913
    Abstract: The present disclosure provides for sampling instruments and methods of collecting sample particles. The sampling instrument can include a high-pressure pulsed valve coupled to a gas flow system to displace a sample from a surface. Also included can be a voltage supply coupled to a voltage switch, a suction device, a sample collector, and a collection filter. To collect a sample, extractive particles can be deposited onto a sample present on a substrate. At least a portion of the sample becomes coupled to a portion of the extractive particles to form sample particles. High-pressure gas can be discharged at the sample, thereby aerosolizing a portion of the sample particles to disperse aerosolized sample particles. A portion of the aerosolized sample particles can be collected onto a collection filter to form a collected sample.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: June 28, 2022
    Assignee: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY
    Inventors: Kermit King Murray, Fabrizio Donnarumma, Jamira Stephenson
  • Patent number: 11353431
    Abstract: A photoacoustic sensor comprises an emitter for emitting electromagnetic radiation at a first wavelength and electromagnetic radiation at a second wavelength, wherein the first wavelength is for photoacoustically detecting particulate matter in a measurement cavity and the second wavelength is for photoacoustically detecting the particulate matter and at least one target gas in the measurement cavity. The photoacoustic sensor further comprises an acoustic transducer for transducing a first acoustic signal into a first sensor signal depending on an interaction of the electromagnetic radiation at the first wavelength and the particulate matter, and for transducing a second acoustic signal into a second sensor signal depending on an interaction of the electromagnetic radiation at the second wavelength with the particulate matter and the at least one target gas.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: June 7, 2022
    Assignee: INFINEON TECHNOLOGIES AG
    Inventor: Christian Bretthauer
  • Patent number: 11353381
    Abstract: A detector disc includes a disc body having a bottom disc and a top cover, the top cover including a first aperture. A sensor is disposed inside the disc body and positioned to be exposed to an external environment via the first aperture in the top cover. The solid state sensor is adapted to detect levels of chemical gas contaminants and output a detection signal based on detected levels of the chemical gas contaminants. A microcontroller is disposed on the PCB and adapted to generate measurement data from the detected levels of the chemical gas contaminants embodied within the detection signal. A wireless communication circuit is disposed on the PCB, the wireless communication circuit adapted to transmit the measurement data wirelessly to a wireless access point device.
    Type: Grant
    Filed: June 9, 2020
    Date of Patent: June 7, 2022
    Assignee: Applied Materials, Inc.
    Inventors: Devendra Channappa Holeyannavar, Dean C. Hruzek, Arunkumar Ramachandraiah, Jeffrey C. Hudgens, Shivaraj Manjunath Nara, Paul B. Reuter
  • Patent number: 11247908
    Abstract: A nanomaterial ribbon patterning method includes: forming a first nanomaterial layer having a first threshold strain on an upper surface of a substrate; forming a second nanomaterial layer on an upper surface of the first nanomaterial layer; forming a thin layer having a second threshold strain smaller than the first threshold strain on an upper surface of the second nanomaterial layer; generating plural cracks on the thin layer and the second nanomaterial layer by applying tensile force to the substrate; placing a mask on an upper surface of the thin layer; removing the mask and peeling off the sacrificial layer on the upper surface of the thin layer; and removing the sacrificial layer to form a nanomaterial ribbon pattern.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: February 15, 2022
    Assignee: CENTER FOR ADVANCED META-MATERIALS
    Inventors: Se Jeong Won, Hyun June Jung, Jae Hyun Kim, Kwang Seop Kim, Hak Joo Lee, Bong Kyun Jang
  • Patent number: 11249043
    Abstract: An SCU as a control device for the gas sensor (first and second NOx sensors) includes an applied voltage switching unit for switching an applied voltage of a pump cell when a deterioration detecting function is performed, and a deterioration rate calculation unit for calculating a deterioration rate of a sensor cell based on a slope during a transient change in an output of the sensor cell according to a switching of the applied voltage by the applied voltage switching unit.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: February 15, 2022
    Assignee: DENSO CORPORATION
    Inventors: Yusuke Kawamoto, Toru Katafuchi, Takehito Kimata, Ryozo Kayama
  • Patent number: 10983102
    Abstract: Systems and methods provide for manufacturing and assembling a single package gas sensor. The method includes: disposing a substrate in a housing; disposing at least one gas sensor die on the substrate; disposing at least one ultraviolet (UV) light emitting diode (LED) on the substrate; and attaching a lid to the housing, wherein the lid includes at least one gas ingress point.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: April 20, 2021
    Assignee: N5 SENSORS, INC.
    Inventors: Abhishek Motayed, Ratan Debnath, Brian Thomson
  • Patent number: 10962484
    Abstract: The present application relates sensing reactive components in fluids by monitoring band gap changes to a material having interacted with the reactive components via physisorption and/or chemisorption. In some embodiments, the sensors of the present disclosure include the material as a reactive surface on a substrate. The band gap changes may be detected by measuring conductance changes and/or spectroscopic changes. In some instances, the sensing may occur downhole during one or more wellbore operations like drilling, hydraulic fracturing, and producing hydrocarbons.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: March 30, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael T. Pelletier, David L. Perkins, Christopher Michael Jones
  • Patent number: 10928370
    Abstract: An actuating and sensing module includes a main body, an actuator and a gas sensor. The main body includes a partition, an inlet and an outlet. The space inside the main body is divided into a first compartment and a second compartment by the partition. The inlet and the outlet are in fluid communication with the first compartment and the second compartment respectively. The inlet, the first compartment, a communicating hole, the second compartment and the outlet form a gas channel within the main body. The actuator is sealed and disposed between the main body and the partition in the second compartment, wherein gas is introduced into the first compartment through the inlet, transported to the second compartment through the communicating hole, and discharged through the outlet by the actuator. The gas sensor is disposed in the first compartment and separated from the actuator for monitoring the gas on a surface thereof.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: February 23, 2021
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Yung-Lung Han, Chi-Feng Huang, Chang-Yen Tsai, Wei-Ming Lee
  • Patent number: 10890551
    Abstract: A gas sensor includes a sensing element having an electrode pad a metal terminal, and a separator that has insertion holes in which the metal terminal is held. The metal terminal includes a main body and an elastic portion that is integrally connected to the main body and is elastically connected to the electrode pad at a predetermined contact point. The main body includes a front-end-side restricting portion and a rear-end-side restricting portion that restrict the movement of the main body by contacting wall surfaces of the insertion hole when the main body moves in a direction intersecting the direction of an axial line. The contact point is located between the front-end-side restricting portion and the rear-end-side restricting portion in the direction of the axial line. The front-end-side restricting portion and the rear-end-side restricting portion are connected to each other so that a flat board portion is interposed therebetween.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: January 12, 2021
    Assignee: NGK Spark Plug Co., LTD.
    Inventors: Takehiro Oba, Shogo Nagata, Shunya Mihara
  • Patent number: 10884054
    Abstract: We disclose a circuit board that hosts at least first and second types of resistance sensors and a method of operating the same. The resistance of each sensor of the first type tends to increase, and the resistance of each sensor of the second type tends to decrease if the sensor is exposed to an aggressive environment. The circuit board also hosts a control circuit that operates to monitor respective resistances of the various resistance sensors and to process the digital values representing the resistances to estimate the working condition of one or more other electrical circuits located on the circuit board and/or in relatively close proximity to the circuit board in the corresponding equipment cabinet. The control circuit further operates to transmit out an appropriate alarm message if the estimated working condition is deemed unsatisfactory.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: January 5, 2021
    Assignee: NOKIA OF AMERICA CORPORATION
    Inventor: Chen Xu
  • Patent number: 10859523
    Abstract: Disclosed is a gas sensor for detecting hydrogen gas in a measurement gas atmosphere, including: a first installation part defining a first inner space in communication with the measurement gas atmosphere through a solid electrolyte membrane member; a second installation part defining a second inner space in direct communication with the measurement gas atmosphere; first and second sensor elements respectively installed in the first and second inner spaces; and a calculation unit configured to calculate the concentration of the hydrogen gas according to a potential between the first and second sensor elements. The gas sensor further includes a current detecting portion that detects a current flowing through the first and second sensor elements. The calculation unit is configured to, when the current detected by the current detecting portion is larger than or equal to a threshold value, judge that the hydrogen gas is present at high concentration.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: December 8, 2020
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Masahiro Yamashita, Shoji Kitanoya, Masaya Watanabe, Yusuke Matsukura, Daisuke Ichikawa
  • Patent number: 10845325
    Abstract: A solid-state, low power microheater sensor platform that is configurable with selected metal oxide films for particular gas sensing applications is described. The sensor platform is configured by selecting a chemiresistive or catalytic material that is suitable for detecting a desired gas and then forming a porous nanostructured film on the designated surfaces of the microheater platform. Also described are methods for creating a highly porous, nanostructured metal oxide film in a controlled location from a liquid precursor using a localized heat source. By fast annealing deposited liquid precursors with the microheater, a highly porous, nanocrystalline metal oxide film can be generated in-situ and locally on the sensor platform.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: November 24, 2020
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Roya Maboudian, Hu Long, Anna Harley-Trochimczyk, William Mickelson, Carlo Carraro
  • Patent number: 10837878
    Abstract: A particulate matter detection sensor includes a particulate matter detection unit for changing the output of an electrical signal in accordance with change in the electrical characteristics due to the deposition of particulate matter contained in an exhaust gas G discharged from an internal combustion engine, and a cover member having a cylindrical cover wall and disposed to surround the particulate matter detection unit. The particulate matter detection unit includes a deposition portion on which a part of the particulate matter is deposited, and a plurality of detection electrodes disposed being spaced apart from each other on the deposition portion. The deposition portion of the particulate matter detection unit is arranged so as to be oriented towards the tip side of the cover member. The cover wall of the cover member includes a plurality of exhaust gas introduction holes formed at positions closer to the tip side than is the deposition portion.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: November 17, 2020
    Assignee: DENSO CORPORATION
    Inventors: Kazuhiko Koike, Masayuki Tamura, Hirokatsu Imagawa
  • Patent number: 10830744
    Abstract: In an embodiment, a hydrogen monitoring system comprises a plurality of sensing elements that individually comprise a working electrode, a counter electrode, an insulating layer located in between the working electrode and the counter electrode, a catalyst located on an end of both the working electrode and the counter electrode, an electrolyte located on the end of the sensing elements on both the working electrode and the counter electrode, between the working electrode and the counter electrode, and in contact with the catalyst, and an electrical circuit located on an opposite end of the sensing element that connects the working electrode and the counter electrode.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: November 10, 2020
    Assignees: SKYRE, INC., UNIVERSITY OF CONNECTICUT
    Inventors: Trent M. Molter, Ugur Pasaogullari, Leonard J. Bonville, Charles Banas, Gregory Hesler
  • Patent number: 10830723
    Abstract: A gas sensor containing counter electrodes and a semiconductor nanowire 4 disposed between the counter electrodes 2, 3, wherein the semiconductor nanowire 4 is in a state where light can be irradiated, which sensor measures changes in the electric current associated with adsorption of a gas to the semiconductor nanowire 4, wherein the electric current is generated by irradiation of light on the semiconductor nanowire with a voltage applied to the counter electrodes 2, 3.
    Type: Grant
    Filed: July 3, 2015
    Date of Patent: November 10, 2020
    Assignee: KAKE EDUCATIONAL INSTITUTION
    Inventor: Norio Akiyama
  • Patent number: 10823746
    Abstract: A reader for a lateral flow test device includes a tray or drawer, extendable from the reader, which receives the test device. The tray includes a calibration test pattern affixed or printed thereon placed proximate to the test device and in alignment with the axis of the test device. As the tray is closed and the test device is inserted to the reader, the calibration test pattern is first read by an optics unit including a photodiode. The resulting photodiode output provides a calibration curve S that the reader then uses to correct for any non-linear response of the reader's optical or electronic systems, thus insuring that every reader will yield the same readout for a given test cartridge, despite reader-to-reader variations or reader degradation with time. One use of the reader is for detection of SARS-CoV-2 infection.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: November 3, 2020
    Assignee: Thermogenesis Holdings, Inc.
    Inventors: William Busa, Phillip H. Coelho, Paul Getchel
  • Patent number: 10777063
    Abstract: Systems and sensors for detecting vaping or smoking are disclosed. A sensor system for identifying vaping and smoking at a site includes an air sensor located within a return vent of a ventilation system and configured to sense air quality of air conveyed through the return vent, a controller configured to identify vaping and smoking from the sensed air quality based on an air signature, and a network interface configured to communicate an alert indicating the vaping or smoking, when the vaping or smoking is identified.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: September 15, 2020
    Assignee: SOTER TECHNOLOGIES, LLC
    Inventor: Cary Chu
  • Patent number: 10767541
    Abstract: A particulate sensor (1) having a sensor-side positioning portion (11k) for determining the circumferential position of a sensor main body (5) with respect to a sensor attachment portion (120) when the particulate sensor (1) is attached to the sensor attachment portion (120). The sensor attachment portion (120) has a pipe-side positioning portion (121) which conforms to the sensor-side positioning portion (11k) and is configured such that, when the particulate sensor (1) is attached to the sensor attachment portion (120), the circumferential position of the sensor main body (5) with respect to the sensor attachment portion (120) is always set to a fixed circumferential position.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: September 8, 2020
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Hiroki Hattori, Ryosuke Noda
  • Patent number: 10761047
    Abstract: A formaldehyde detecting apparatus includes a formaldehyde sensor configured to measure concentration of formaldehyde in air; a printed circuit board on which the formaldehyde sensor is disposed, the printed circuit board including a signal processor configured to process a signal output from the formaldehyde sensor; a fixing member disposed on the printed circuit board, the fixing member configured to fix the formaldehyde sensor, wherein the fixing member prevents the formaldehyde sensor from oscillating with respect to the printed circuit board by external vibration; and a power supply configured to supply a voltage capable of stabilizing an output signal to the signal processor.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: September 1, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae-gyu Kim, Jae-ho Baek, Jong-soo Hong, Si-hoon Lee, Jeong-su Han
  • Patent number: 10761115
    Abstract: A sensor detects a detected value for a covered wire without metallic contact, and includes: a tubular support that has a male thread and an insertion channel in which the covered wire is inserted and supported; a tubular shell that is inserted into the support from a base end; a pillar-shaped detection electrode that is inserted in and supported by the shell; and a tubular threaded piece that screws onto the male thread, is rotatably attached onto the shell, and is moved, along the axis of the support, together with the shell and the detection electrode by a screwing operation. The detection electrode is configured so that the front surface is pressed onto the covered wire in the support when the detection electrode moves, resulting in the front surface becoming capacitively coupled to a core wire of the covered wire via an insulating covering.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: September 1, 2020
    Assignee: HIOKI DENKI KABUSHIKI KAISHA
    Inventor: Shin Kasai
  • Patent number: 10712365
    Abstract: A liquid cell for in situ atomic force microscopy (AFM) measurement of a sample during filtration is provided. The liquid cell includes a cantilever probe; a cantilever holder to position the probe near a surface of a sample (e.g., a filtration membrane); a liquid cell housing provided to hold the sample and comprising an opening at the top; an upper part; a lower part; an internal cavity to contain a fluid; a fluid inlet passage located in the upper part; a first fluid outlet passage located in the upper part; and a second fluid outlet passage located in the lower part. A method of in situ atomic force microscopy (AFM) measurement of a sample during filtration in a liquid by using the liquid cell described herein is also provided.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: July 14, 2020
    Assignee: New Jersey Institute of Technology
    Inventors: Wen Zhang, Wanyi Fu
  • Patent number: 10680056
    Abstract: A method of fabricating an integrated circuit (IC) includes providing a substrate having a semiconductor surface layer comprising an unpatterned resistive layer. Measurements are obtained of a characteristic of the unpatterned resistive layer at each of a plurality of locations over the substrate. The unpatterned resistive layer is modified, such as by targeted removal of layer material, in response to the measurements such that the measured characteristic is more uniform across the substrate. A resistor on the IC is defined from the unpatterned resistive layer after the modifying.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: June 9, 2020
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Bhaskar Srinivasan, Brian Goodlin, Dhishan Kande
  • Patent number: 10591431
    Abstract: An electrode for a sensor element 1 that detects a specific substance in a gas to be measured, wherein the electrode is embedded in an insulating substrate having a detection face to which the specific substance adheres, the electrode being embedded in such a manner that a part of the electrode is exposed at the detection face, the electrode comprises an alloy of Pt and at least one metal selected from the group consisting of Rh, Ru, Ir, Os, and Pd, and granular voids dispersed among the alloy, and the content of the metal in the alloy is 40 mass % or less, and the number of the granular voids per unit volume of the electrode for a sensor element is 3/100 ?m3 to 50/100 ?m3.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: March 17, 2020
    Assignee: DENSO CORPORATION
    Inventors: Makoto Noguchi, Satoshi Suzuki
  • Patent number: 10466218
    Abstract: A sensor can include a conductive region in electrical communication with at least two electrodes, the conductive region including a conductive material and an alkene-interacting metal complex.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: November 5, 2019
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Timothy M. Swager, Sophie Liu, Graham Sazama, Alexander R. Petty, Jan M. Schnorr
  • Patent number: 10436708
    Abstract: Described is a method for quantifying the amount of optically interfering gas impurities in a gas detection system comprising a sample gas inlet, a reference gas inlet, a gas modulation valve, and an infrared absorption gas detector used for analysis of methane or natural gas, wherein the gas modulation valve alternatingly connects the sample gas inlet to the gas detector during a sample gas time period and the reference gas inlet to the gas detector during a reference gas time period. The method includes measuring an infrared absorption for at least two different sample gas concentrations in the gas detector achieved via respective different ratios from the sample gas time period and the reference gas time period, and comparing amplitudes of different measurement signals of the at least two different sample gas concentrations with calibration functions to assess an actual gas impurity concentration in the sampled gas.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: October 8, 2019
    Assignee: INFICON GmbH
    Inventors: Johan Hellgren, Henrik Vennerberg, Fredrik Enquist
  • Patent number: 10371680
    Abstract: A gas sensor is provided with a metal shell protecting member formed of a material superior in heat resistance to a metal shell, whereby a high-temperature measurement target (exhaust gas) is prevented from being in direct contact with a region, of a protector internal region of the metal shell, on the front side relative to a protector opposing surface. That is, in the gas sensor, it is possible to suppress corrosion, due to high temperature, of a region, of the protector internal region of the metal shell, on the front side relative to the protector opposing surface (an inner surface and a front end surface of a protector fixing portion), while the metal shell is formed of a material (SUS430) that can be subjected to working (crimping or the like) accompanied with deformation. Therefore, heat resistance of the entire sensor can be improved.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: August 6, 2019
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Makoto Kume, Shingo Ito, Takehiro Oba, Shinya Miyamoto, Suguru Kyoumoto
  • Patent number: 10345702
    Abstract: A polymer brush with a plurality of repeat units wherein some portions of the repeat units have one or more grafting groups and some portions have one or more interface tuning groups is disclosed. The grafting groups are selected based on the identity of an inorganic substrate, and the interface tuning groups are selected based on the identity of a photoresist that will interact with the groups. A process of lithographic patterning and an electronic device comprising at least one integrated circuit formed by the process of lithographic patterning are disclosed as well. The process comprises providing an inorganic substrate, depositing the disclosed polymer brush onto the inorganic substrate, and depositing a photoresist onto the polymer brush. The process further comprises masking the photoresist with a photomask having a pattern, and applying energy to the masked photoresist to form an etch mask. The inorganic substrate is then etched.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: July 9, 2019
    Assignee: International Business Machines Corporation
    Inventors: Martin Glodde, Dario L. Goldfarb, Ankit Vora
  • Patent number: 10343916
    Abstract: Provided are methods for forming graphene or functionalized graphene thin films. Also provided are graphene and functionalized graphene thin films formed by the methods. For example, electrophoretic deposition methods and stamping methods are used. Defect-free thin films can be formed. Patterned films can be formed. The methods can provide conformal coatings on non-planar substrates.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: July 9, 2019
    Assignee: The Research Foundation for The State University of New York
    Inventors: Sarbajit Banerjee, Vincent Lee, Luisa Whitaker
  • Patent number: 10309923
    Abstract: A gas sensor device is equipped with the sensor cell, the pump cell, the inner void space, and the gas inlet. The sensor cell is created by a portion of the solid electrolyte body and a pair of sensor electrodes disposed on the solid electrolyte body. The pump cell is created by a portion of the solid electrolyte body and a pair of pump electrodes disposed on the solid electrolyte body. The inner void space faces the sensor electrode and the pump electrode. If a dimension of said gas inlet in a direction in which the measurement gas flows in the gas inlet is defined as L1, a sectional area of the gas inlet taken perpendicular to the direction of flow of the measurement gas in the gas inlet is defined as S1, a distance between the gas inlet and the sensor cell is defined as L2, and a sectional area of the inner void space taken perpendicular to a direction in which the pump cell and the sensor cell are aligned with each other is defined as S2, a relation of 1000?(L1/S1)×(L2/S2)?5000 is met.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: June 4, 2019
    Assignee: DENSO CORPORATION
    Inventors: Yuusuke Toudou, Takehito Kimata, Mitsunobu Nakatou
  • Patent number: 10302589
    Abstract: A gas sensor including a conductive oxide sintered body, the sintered body including a crystal phase having a perovskite-type oxide crystal structure represented by a compositional formula: REaCubFecNidOx wherein RE represents a rare earth element, wherein the following conditions: a+b+c+d=1 and 1.25?x?1.75 are satisfied, and wherein a, b, c, and d satisfy the following conditions: 0.375?a?0.524; 0.050<b?0.200; 0.025?c?0.250; and 0.150?d?0.350. Also disclosed is a conductive oxide sintered body, a wiring board including a conductor layer formed of the conductive oxide sintered body and a gas sensor including an electrode formed of the conductive oxide sintered body.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: May 28, 2019
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Mina Sato, Yoshinobu Hirose, Akira Seike, Hisashi Kozuka, Yasuyuki Okimura, Kazushige Ohbayashi
  • Patent number: 10094757
    Abstract: A particulate measurement apparatus controls a particulate sensor which includes an ion generation section (110), an exhaust gas electrification section (120), an ion trapping section (130), and a second electrode (132). The second electrode (132) is maintained at a potential repulses the ions to assist the trapping of the ions at the ion trapping section (130). The particulate measurement apparatus includes a second isolation transformer (720b) and an auxiliary electrode current measurement circuit (780). The second isolation transformer (720b) applies a voltage to the second electrode (132) through a second wiring line (222). The auxiliary electrode current measurement circuit (780) detects an auxiliary electrode current Iir flowing to the second wiring line (222). The particulate measurement apparatus determines at least one of the state of the particulate sensor and the state of the second wiring line (222) based on the auxiliary electrode current Iir.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: October 9, 2018
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Kaoru Hisada, Toshio Nakanishi, Yuichi Goto, Katsunori Yazawa
  • Patent number: 9975776
    Abstract: A method of forming a metal oxide/reduced graphene oxide composite film may be provided. The method may include providing a graphene oxide dispersion. The providing a graphene oxide dispersion method may also include adding a metal oxide to the graphene oxide dispersion to form a metal oxide/graphene oxide dispersion. The method may additionally include forming a metal oxide/graphene oxide film by filtering the metal oxide/graphene oxide dispersion using a directional flow directed assembly. The method may further include reducing the metal oxide/graphene oxide film using a reducing agent to form the metal oxide/reduced graphene oxide composite film.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: May 22, 2018
    Assignee: Nanyang Technological University
    Inventors: Pooi See Lee, Afriyanti Sumboja, Ce Yao Foo
  • Patent number: 9976976
    Abstract: To provide a gas sensor apparatus capable of preventing clogging of a gas intake port due to particles, droplets, or the like, of a gas and maintaining measurement accuracy for a long time, a gas sensor apparatus 1 includes a housing 3. The housing 3 includes an expansion chamber 6 communicating with an air intake passage 2 via an air intake port 8, and a measurement chamber 5 communicating with the expansion chamber 6 via a communicating portion 7. A double squeezing structure including the gas intake port 8 and the communicating portion 7 is provided, and two stages of regions where the volume expands between the gas intake port 8 and the measurement chamber 5 are provided. As a result, the movement of the air in the measurement chamber 5 is decreased. It is possible to provide a structure in which the capacity of the gas intake port 8 is increased to avoid clogging of the gas intake port due to particles or droplets.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: May 22, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Hiroshi Nakano, Masahiro Matsumoto, Satoshi Asano, Shinobu Tashiro
  • Patent number: 9915587
    Abstract: A particulate sensor (1) which detects particulates S contained in a gas under measurement (EG) flowing within a gas flow pipe (EP) has a space forming portion (12) and an ion source (15). The space forming portion (12) projects into the gas flow pipe EP and forms an internal space MX. The space forming portion (12) has an introduction port (43I) and a discharge port (48O) for discharging from the internal space MX the gas EGI introduced through the introduction port (43I). The source (15) produces ions CP by gaseous discharge. The space forming portion (12) is configured such that the introduced gas EGI is discharged from the internal space MX through the discharge port (48O), the gas under measurement EG is introduced into the internal space MX through the introduction port (43I), and the introduced gas EGI is mixed with the ions CP produced by the ion source (15).
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: March 13, 2018
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Takeshi Sugiyama, Masayuki Motomura, Keisuke Tashima, Toshiya Matsuoka
  • Patent number: 9846146
    Abstract: Disclosed herein is a hydrogen detecting sensor that includes a sulfide-metal catalyst, such that hydrogen gas can be detected visibly with naked eyes. Particularly, the hydrogen detecting sensor includes a substrate, a sulfide layer formed on the substrate and chemically discolored when exposed to hydrogen, and a metal catalytic layer formed on the sulfide layer.
    Type: Grant
    Filed: June 28, 2015
    Date of Patent: December 19, 2017
    Assignees: Hyundai Motor Company, Ajou University Industry-Academic Cooperation Foundation
    Inventors: Yong Gyu Noh, Ho June Bae, Hyung Tak Seo, Yeong An Lee, Shankara S. Kalanur
  • Patent number: 9791428
    Abstract: The invention relates to a sensor assembly to detect and quantify organic and/or inorganic mercury compounds, including elemental mercury that may be present in gases or liquids, such as natural gas, air, condensates, crude oil, refined petroleum gas or liquids, and water including connate water, condensed water and water containing hydrate inhibitor(s). The sensor assembly includes a housing having a flow channel defined by an inlet, a sensor array, and an outlet. The sensor array is based on the differential sorption properties measured using a surface acoustic wave (SAW) sensor array, a chemiresistor array, or a combination of the two.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: October 17, 2017
    Assignee: CHEVRON U.S.A. INC.
    Inventors: David Glynn Thomas, Nicholas Paul Langley, Nicholas Charles Last, Roderick J. Travis
  • Patent number: 9758886
    Abstract: The present invention is related to a preferably oriented nanotwinned Au film, a method of preparing the same, and a bonding structure comprising the same. The nanotwinned Au film has a thickness direction. The nanotwinned Au film is stacked along a [220] crystallographic axis orientation in the thickness direction. At least 50% by volume of the nanotwinned Au film is composed of a plurality of nanotwinned Au grains which are adjacent to each other, arranged in a direction perpendicular to the thickness direction, and stacked along a [111] crystallographic axis orientation.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: September 12, 2017
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Chih Chen, Wei-Lan Chiu, Yi-Chia Chou
  • Patent number: 9748482
    Abstract: A semiconductor sensing device that includes a nanowire conductive layer, a semiconductor sensing layer, and a conductive layer is provided. The nanowire conductive layer includes a plurality of connected conductive nanowires, and gaps are formed between the conductive nanowires. The semiconductor sensing layer is electrically connected to the nanowire conductive layer. The conductive layer is electrically connected to the semiconductor sensing layer. The semiconductor sensing layer is located between the nanowire conductive layer and the conductive layer. A manufacturing method of a semiconductor sensing device is also provided.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: August 29, 2017
    Assignee: E Ink Holdings Inc.
    Inventors: Hsiao-Wen Zan, Chuang-Chuang Tsai, Pei-Chen Yu, Ming-Yen Chuang, Chia-Chun Yeh
  • Patent number: 9735279
    Abstract: A gas sensor includes: a channel layer in which a F-terminated GNR, a H-terminated GNR, and a F-terminated GNR whose edge portions are terminated with different modifying groups are bonded to each other; a source electrode formed on one end of the channel layer; and a drain electrode formed on the other end of the channel layer, in which a surface of the H-terminated GNR is exposed, and this exposed portion is a gas sensing part.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: August 15, 2017
    Assignee: Fujitsu Limited
    Inventors: Shintaro Sato, Naoki Harada, Hideyuki Jippo
  • Patent number: 9506752
    Abstract: An explosion-proof dust of electromechanical level measuring device includes: a explosion proof enclosure (100), formed with a safe chamber area (101) and a hazardous chamber area (102) and a power shaft sleeve (120) is provided for communicating the above two; a power unit (200) disposed inside the safe chamber area (101); a control module (300) disposed inside the safe chamber area (101) and electrically connected to the power unit (200); a capstan (400) disposed in the hazardous chamber area (102); a power shaft (500) sleeved in the power shaft sleeve (120) and two ends thereof are respectively connected to the power unit (200) and the capstan (400); and a pair of bearings (610, 620) disposed in the power shaft (120) and spaced with an interval thereby forming a fireproof path (601).
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: November 29, 2016
    Assignee: FINETEK CO., LTD.
    Inventors: Ching-Cheng Kuo, Yun-Lung Lo, Yi-Liang Hou, Chao-Kai Cheng
  • Patent number: 9506899
    Abstract: A protector (160) is inserted into a metallic shell (110) such that at least a portion of each gas introduction hole (167) is located on the base end side with respect to the forward end (110b) of the metallic shell. The metallic shell has a gas introduction space S2 defined by a forward-end-side inner surface (113b) of the metallic shell and an outer surface (160d) of the protector and which guides a gas-to-be-detected (exhaust gas G) from a region on the forward end side of the metallic shell into the gas introduction holes of the protector. The base end of the forward end portion (121) of the detection element (120) is located on the base end side with respect to the forward end (167b) of each gas introduction hole, and the forward end of the forward end portion is located on the forward end side with respect to the base end (167c) of each gas introduction hole.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: November 29, 2016
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Makoto Kume, Shingo Ito, Daisuke Tahira, Takehiro Oba, Yuichi Yamada
  • Patent number: 9470654
    Abstract: A method of operating a gas sensor is disclosed, wherein the sensor includes a pumping electrode configuration and a measuring electrode configuration, and wherein the method includes operating the sensor in a first mode in which a first, lower pumping potential sufficient to electrochemically remove an interfering compound from the sensor without electrochemically removing the analyte from the sensor is applied across the pumping electrode configuration and a measuring potential sufficient to electrochemically remove the analyte from the sensor is applied across the measuring electrode configuration; and operating the sensor in a second mode in which a second, higher pumping potential sufficient to electrochemically remove the analyte from the sensor is applied to the pumping electrode configuration.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: October 18, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: David Kubinski, Richard Soltis, Jacobus H. Visser, Yi Ding, Michael Howard Parsons
  • Patent number: 9455138
    Abstract: A method for forming a dielectric film in a trench on a substrate by plasma-enhanced atomic layer deposition (PEALD) performs one or more process cycles, each process cycle including: (i) feeding a silicon-containing precursor in a pulse; (ii) supplying a hydrogen-containing reactant gas at a flow rate of more than about 30 sccm but less than about 800 sccm in the absence of nitrogen-containing gas; (iii) supplying a noble gas to the reaction space; and (iv) applying RF power in the presence of the reactant gas and the noble gas and in the absence of any precursor in the reaction space, to form a monolayer constituting a dielectric film on a substrate at a growth rate of less than one atomic layer thickness per cycle.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: September 27, 2016
    Inventors: Atsuki Fukazawa, Hideaki Fukuda, Noboru Takamure, Masaru Zaitsu
  • Patent number: 9418857
    Abstract: A sensor component is described for a gas and/or liquid sensor having a substrate having at least one first printed conductor and a second printed conductor, which are fashioned such that a voltage can be applied, and having at least one sensitive semiconductor material, additionally including at least one trench a contact segment of the first printed conductor and a contact segment of the second printed conductor being situated on two inner side surfaces at a distance from one another, and the at least one sensitive semiconductor material being filled into the at least one trench in the form of at least one particle, grain, and/or crystal, at least between the first contact segment of the first printed conductor and the first contact segment of the second printed conductor. Also described is a production method for a sensor component for a gas and/or liquid sensor. In addition, also described is a method for detecting at least one material in a gaseous and/or liquid medium.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: August 16, 2016
    Assignee: ROBERT BOSCH GMBH
    Inventors: Richard Fix, Bernd Schumann
  • Patent number: 9347806
    Abstract: Disclosed is a sensor having an embedded electrode, which can be manufactured at a reduced cost and applied to many different fields. The sensor comprises: a sensing stack in which a first conductive layer and a second conductive layer are stacked and layered with a separation layer interposed therebetween; and an electrode terminal arranged at a side surface of the sensing stack and electrically connected to the first and second conductive layers. The first and second conductive layers are exposed on at least one side surface of the sensing stack except for the side surface on which the electrode terminal is arranged, to thereby form a sensing surface.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: May 24, 2016
    Assignees: Joinset Co., Ltd., Expantech Co., Ltd.
    Inventors: Sun-Ki Kim, Sung-Youl Kim, Hyun-Hak Jung, Jung-Suk Kim
  • Patent number: 9255919
    Abstract: For a gas sensor, in particular for automobile applications, comprising a housing, which has a measurement chamber, wherein at least one sensor element having connecting wires is associated with the measurement chamber, the housing has a bottom part and a top part that covers the bottom part and each sensor element is arranged in the bottom part while suspended by the connecting wires thereof. At least one side wall of the bottom part favorably has an assembly opening, which is designed in such a way that a tool arm that retains the sensor element can be inserted into the bottom part from the outside through the assembly opening and can be brought into an assembly position in the area of the opening edge of the bottom part so that the connecting wires of the sensor element are in bondable contact with the associated connection surfaces. Thus especially easy assembly is possible.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: February 9, 2016
    Assignee: Hella KGAA Hueck & Co.
    Inventors: Thomas Niemann, Torsten Eggers
  • Patent number: 9217726
    Abstract: A gas sensor control apparatus (1) for a gas sensor (2) including an electromotive force cell (24) and a pump cell (14) includes current control means (69) for feedback-controlling the pump current Ip, voltage setting means S5, S13 for setting a target voltage Vr to either of first and second target voltage Vr1 and Vr2, and constant group setting means S4, S12 for setting a group of feedback control constants to a first group Kpid1 when the target voltage is Vr1 and to a second group Kpid2 when the target voltage is Vr2. The second group Kpid2 is determined such the pump current Ip becomes stable more quickly as compared with the case where the first group of control constants Kpid1 continues to be used.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: December 22, 2015
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Yasuhiro Ishiguro, Yu Akiyama, Tomohisa Terui, Kazuhisa Fujibayashi
  • Patent number: 9194834
    Abstract: A multi-storey gas sensor is constructed by stacking chemoresistor type gas sensing elements and providing holes through each sensing element so gas can pass from one sensing element to the next, through the sensing layers. A rich data set can be obtained by selecting appropriate combinations of materials for the different sensing layers and varying the operating conditions of the different gas-sensing elements by: taking measurements when different combinations of sensing layers are activated, when given sensing layers are heated to different temperatures or according to different heating profiles, and/or when selected sensing layers are exposed to UV light. Sensor sensitivity and selectivity can be increased by applying UV pulses of controlled duration, and target gas species can be detected based on the transient response of the sensing layer at onset of UV irradiation. Each sensing element may have a micro-hotplate architecture.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: November 24, 2015
    Assignees: ALPHA MOS S.A., CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Alain Gaudon, Chang Hyun Shim, Philippe Menini, Francois Loubet
  • Patent number: 9134146
    Abstract: A fluid monitoring apparatus, including a circuitry housing containing circuitry for processing fluid sensing signals and responsively transmitting an output, with a sensor assembly adapted for mechanical and electrical coupling to the circuitry housing. The sensor assembly includes at least one sensing member arranged to respond to a fluid species of interest in the monitored fluid, for generation of an output. The apparatus includes at least one of (A) a printed circuit board adapted to engage the circuitry housing and to mechanically couple to the sensor assembly, (B) the sensor assembly including a base and sensing element removably connected to the base by press-fit coupling elements, and (C) the sensor assembly including a base and a sensing filament connected thereto, and a filament guard to protectively circumscribe the sensing filament.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: September 15, 2015
    Assignee: ENTEGRIS, INC.
    Inventors: Thomas H. Baum, Ing-Shin Barry Chen, Richard D. Chism
  • Patent number: 9108158
    Abstract: Methods for forming an ultrathin GO membrane are provided. The method can include: dispersing a single-layered graphene oxide powder in deionized water to form a single-layered graphene oxide dispersion; centrifuging the graphene oxide dispersion to remove aggregated graphene oxide material from the single-layered graphene oxide dispersion; thereafter, diluting the single-layered graphene oxide dispersion by about ten times or more through addition of deionized water to the graphene oxide dispersion; and thereafter, passing the single-layered graphene oxide dispersion through a substrate such that a graphene oxide membrane is formed on the substrate. Filtration membranes are also provided and can include: a graphene oxide membrane having a thickness of about 1.8 nm to about 180 nm, with the graphene oxide membrane comprises about 3 to about 30 layers of graphene oxide flakes.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: August 18, 2015
    Assignee: University of South Carolina
    Inventors: Miao Yu, Hang Li