| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 422820020 | Resistance or conductivity | 29 |
| 20090022628 | APPARATUS AND METHODS FOR MICROFLUIDIC APPLICATIONS - Non-rigid tape apparatus and fabrication methods for microfluidic processing applications such as gel electrophoresis are provided, where microfluidic processing is performed on selected areas. Parts of the tape are formed by high pressure plastic film forming. Membranes and other structures are self sealing during and after penetration by pipettes and electrical probes. Rigid exoskeleton elements protect the non-rigid parts during processing and facilitate transport of the tape. | 01-22-2009 |
| 20090087348 | SENSOR APPLICATIONS - A sensor that includes an assembly having a flexible base material and a flexible material layer formed on the flexible base material. Both the flexible base material and the flexible material layer have shrinkable and/or stretchable properties. The flexible base material may include a shrinkable polymer (e.g. PVC/PET or “shrink wrap”), which may shrink up to 500%. The flexible base material may include a stretchable polymer (e.g. Mylar), which may be stretched by at least 1000%. These stretchable and shrinkable properties may be exhibited without substantial functional degradation of either the flexible base material and/or the flexible material layer. | 04-02-2009 |
| 20090169431 | METHOD FOR HIGHLY SENSITIVE NUCLEIC ACID DETECTION USING NANOPORE AND NON-SPECIFIC NUCLEIC ACID BINDING AGENT - Provided is a method of sensitively detecting nucleic acids in a nucleic acid sample, the method comprising: contacting the sample comprising the nucleic acid with a non-specific nucleic acid binding agent in an electrically conductive fluid medium; contacting the sample comprising the nucleic acid bound to the agent with a nanopore; and applying a voltage to the nanopore and monitoring a current change through the nanopore. The nucleic acid can be sensitively detected because a change in current amplitude through the nanopore is greater than when nucleic aid detection is performed without using an intercalator. | 07-02-2009 |
| 20090246083 | TIMING BASED METHOD AND APPARATUS FOR MONITORING DRINKING WATER PURITY AND ENCOURAGING ROUTINE TESTING OF DRINKING WATER PURITY - An invention is provided for encouraging routine testing for TDS levels in a liquid. The invention includes a conductivity sensor capable of sensing a conductivity level of a liquid, and a processor in electrical communication with the conductivity sensor. The processor has logic that calculates a TDS level for the liquid based on the conductivity level of the liquid. The calculated TDS level for the liquid is then displayed on a display in electrical communication with the processor. Also included is a speaker, which is electrical communication with the processor. To provide automatic reminders to the user, an integrated timing mechanism is included that is in communication with the processor. When a predetermined period of time has elapsed, such as the period of time between periodic TDS level testing, the integrated timing mechanism sends a signal to the processor to provide an alert to the user to test the TDS level. | 10-01-2009 |
| 20100008825 | RESONANT SENSOR CAPABLE OF WIRELESS INTERROGATION - A resonant sensor for detecting a specific environmental analyte is presented. The resonant sensor comprises a top conductive layer of two ground conductors and a center signal line, a bottom conductive layer of two ground lines shunted together by a shunt line and a sensing layer positioned between the top conductive layer and the bottom conductive layer. A capacitor is created by the overlap of the center signal line of the top conductive layer and the shunt line of the bottom conductive layer. Electrical properties of the sensing layer change in response to binding the specific environmental analyte with the sensing layer. The sensing layer can be an electro-optic polymer. Nanoparticles or carbon nanotubes can be dispersed within the sensing layer to bind with the specific environmental analyte. An integrated antenna can be incorporated into to sensor to receive radio frequencies for wireless, passive sensing. | 01-14-2010 |
| 20100098588 | APPARATUS FOR DETERMINING TOTAL ORGANIC CARBON - [PROBLEMS] To use in a carbon dioxide separation part a gas-permeable membrane capable of maintaining high-speed determination and to diminish the influence of interfering ingredients. | 04-22-2010 |
| 20100143196 | MICROCANTILEVER SENSOR FOR ANALYTE DETECTION - Microcantilever sensors having protected microcantilever arms are described. The sensors are well suited for analyte detection and measuring other small movements. The protected arm reduces damage due to handling and assists in assembly of the microcantilever sensor with a transducer. | 06-10-2010 |
| 20100247383 | REAGENT PREPARING DEVICE AND SPECIMEN PROCESSING SYSTEM - A reagent preparing device capable of supplying a predetermined reagent, which includes a first liquid and a second liquid different from the first liquid, to a measurement section for measuring a specimen using the reagent, comprising: a reagent preparing section for preparing the predetermined reagent; a characteristic measurement device for measuring characteristic of the reagent prepared by the reagent preparing section; and a controller configured for performing operations comprising, controlling the supply of reagent prepared by the reagent preparing section to the measurement section according to the measurement result by the characteristic measurement device, and calibrating the characteristic measurement device based on a known characteristic value of a standard liquid having the known characteristic value and a measurement result obtained by measuring the characteristic of the standard liquid by the characteristic measurement device, is disclosed. A specimen processing system is also disclosed. | 09-30-2010 |
| 20100296973 | Systems and Methods for Monitoring Chemical and Biological Activity using Differential Measurements - A system operable to monitoring bio/chemical activities includes a first measurement probe, a second measurement probe and a comparator. The first measurement probe is operable to interrogate one or more physical properties of a sample at a first location of the sample, and to output, in response, a first measurement signal. The second measurement probe is operable to interrogate one or more physical properties of the sample at a second location of the sample, and to output, in response, a second measurement signal. The comparator is coupled to receive the first and second measurement signals, the comparator configured to output a difference signal comprising the difference between the first and second measurement signals, the difference signal corresponding to the difference in one or more bio/chemical activities occurring at the first location of the sample relative to the second location of the sample. | 11-25-2010 |
| 20100316531 | MICROFLUIDIC DEVICE INCLUDING TWO HYDROPHOBIC LAYERS ASSEMBLED TOGETHER AND ASSEMBLY METHOD - A microfluidic device comprising first and second substrates respectively including first and second hydrophobic layers based on polysiloxane, said hydrophobic layers each comprising an assembly area. The substrates are assembled with each other at said assembly areas by means of an adhesive based on silicone. | 12-16-2010 |
| 20110020182 | MICROFLUIDIC CARTRIDGE WITH SOLUTION RESERVOIR-PUMP CHAMBER - A microfluidic cartridge with solution reservoir-pump chamber is disclosed. The microfluidic cartridge comprises a channel-chamber layer, a sealing layer, a printed circuit board bound with magnetoresistive biochip. The channel-chamber layer includes at least a waste reservoir, a reaction-detection chamber, a solution reservoir-pump chamber and a plurality of micro-channels. Said solution reservoir-pump chamber realizes both functions of solution reservoir and pump chamber in a single structure. Said sealing layer is sealed with said channel-chamber layer to form an integrated microfluidic system with at least a waste reservoir, a reaction-detection chamber, a solution inlet, a solution reservoir-pump chamber and a micro-channel. Said solution reservoir-pump chamber in the present invention consists of elastic objects inside for sealing and pumping. Under pressure, said elastic object propels solution in the reservoir into said reaction-detection chamber via channels of said plurality of micro-channels. | 01-27-2011 |
| 20110150705 | Integrated Hinged Cartridge Housings for Sample Analysis - The invention relates to a cartridge housing for forming a cartridge capable of measuring an analyte or property of a liquid sample. The housing comprising a first substantially rigid zone, a second substantially flexible zone, a hinge region, and at least one sensor recess containing a sensor. The housing is foldable about said hinge region to form a cartridge having a conduit over at least a portion of said sensor. The invention also relates to methods for forming such cartridges and to various features of such cartridges. | 06-23-2011 |
| 20110223065 | BIOMOLECULAR SENSOR WITH PLURAL METAL PLATES AND MANUFACTURING METHOD THEREOF - Disclosed are a biomolecular sensor and a method of fabricating the same having high sensitivity and resolution by using a plurality of metal plates that change electrical properties of a plurality of nanostructures according to the attachment of biomolecules. The biomolecular sensor includes a substrate, first and second electrodes disposed to be spaced apart from each other on the substrate, a plurality of nanostructures disposed on the substrate to connect the first and second electrodes to each other, and a plurality of metal plates that change electrical properties of the plurality of nanostructures according to the attachment of biomolecules. | 09-15-2011 |
| 20110280766 | EFFICIENT SENSOR FOR DETECTING AND DETERMINING THE CONCENTRATIONS OF TARGETS - Embodiments of the present invention are directed to efficient sensors for detecting the presence and concentration of one or more particular target molecules in solutions, air or other gasses, or otherwise present in an environment or sample. Various embodiments of the present invention provide relatively large binding constants or, equivalently, relatively small dissociation constants for binding of target biopolymers or other target molecules with complementary probes bound to, or associated with, a sensor substrate. In addition, various embodiments of the present invention increase the area of the surface of the sensor affected by binding of a target biopolymer or other target molecules to the sensor which, in turn, produces a stronger signal and greater signal-to-noise ratio for a given number or concentration of bound target biopolymers or other target molecules. In certain embodiments of the present invention, large binding constants, large signal-to-noise ratios, and strong signals are achieved by including probe molecules on the surface of the sensor directed to multiple binding sites within a target biopolymer or other target molecules, so that each bound target biopolymer or other target molecule is bound to, or associated with multiple probes. | 11-17-2011 |
| 20110286889 | Robust Low Resistance Vapor Sensor Materials - Compositions for sensor films used for detecting chemical analytes within sensors, such as polymer-absorption chemiresistors (i.e., conductometric sensors) are provided. Robust sensor film compositions that have low resistance, high conductivity, and greater temperature stability and sensitivity to chemical analytes are provided, as well as methods of making these sensor films. Such sensor film compositions include a matrix having a polymer resin and a plurality of conductive particles comprising an axial-geometry conductive particle. Exemplary axial-geometry conductive particles comprise graphene, such as a carbon nanotube. Blends of conductive particles are also contemplated, including blends of axial-geometry conductive particles, such as carbon nanotubes, and carbon black. | 11-24-2011 |
| 20120148449 | ELECTRIC CONDUCTIVITY-BASED BIOSENSOR - An electric conductivity-based biosensor electrochemically detects the concentration of tested objects via measuring impedance or capacitance variation of the tested objects. The biosensor comprises a substrate, two electric-conduction electrodes arranged on the substrate, an antibody adhesion layer arranged on a region of the substrate and a plurality of antibodies arranged on the antibody adhesion layer. The antibody adhesion layer is between the two electric-conduction electrodes. The antibodies are connected with a plurality of tested objects. The tested objects connected with the antibodies form an electric-conduction group contacting the two electric-conduction electrodes. The concentration of the tested objects can be provided via measuring impedance or capacitance between the two electric-conduction electrodes. | 06-14-2012 |
| 20120156099 | FLEXIBLE MULTI-MODULED NANOPARTICLE-STRUCTURED SENSOR ARRAY ON POLYMER SUBSTRATE AND METHODS FOR MANUFACTURE - A flexible chemiresistor (CR) sensor for sensing a molecule of interest in a fluid (liquid or gas) is provided. The flexible CR sensor comprises a flexible chemiresistor (CR) module. The flexible CR module comprises a flexible substrate such polyethylene terephthalate (PET), polyethylene naphthalate (PEN) or polyimide (PI), and a thin film nanoparticle assembly assembled on the flexible substrate. The thin film nanoparticle assembly comprises metal or metal alloy core, ligand-capped nanoparticles and molecular linkers connecting the nanoparticles. The flexible CR sensor and an intelligent pattern recognition engine can be incorporated in a handheld device that can detect a molecule of interest in a fluid (e.g., a liquid or gas) accurately, rapidly, and without false positives. Any sensing array nanomaterial, pattern recognition, and compact/or electronic hardware can be integrated to achieve a desired detection limit and response speed. | 06-21-2012 |
| 20120237400 | REAGENT PREPARATION APPARATUS AND SAMPLE PROCESSING APPARATUS - The present invention is a reagent preparation apparatus, comprising: a reagent preparation unit configured to prepare a reagent for processing a sample; a measuring unit configured to measure a property of the reagent prepared by the reagent preparation unit; a waste section configured to discard the prepared reagent when a measurement result by the measuring unit does not meet a predetermined condition; and a controller configured to control a reagent preparation operation of the reagent preparation unit, wherein the controller controls the reagent preparation unit to stop the reagent preparation operation when a number of times of discarding a reagent has reached a predetermined plurality of times. | 09-20-2012 |
| 20130115136 | CIRCUITS, DEVICES AND SENSORS FOR FLUID DETECTION - An electronic device includes a first field effect transistor that includes a first gate electrode, a first drain electrode, and a first source electrode; a second field effect transistor that includes a second gate electrode, a second drain electrode, and a second source electrode, the first and second gate electrodes being at least one of electrically connected or integral, and the first and second source electrodes being at least one of electrically connected or integral; an input electrode electrically connected to the first and second gate electrodes; and an output electrode electrically connected to the first and second source electrodes. The first field effect transistor also includes a first semiconductor material. The second field effect transistor further also incudes a second semiconductor material. At least one of the first semiconductor material and second semiconductor material has a surface that can be exposed to a fluid and changes an electrical property thereof while being exposed to the fluid. | 05-09-2013 |
| 20130330231 | METHODS FOR DEPOSITION OF MATERIALS INCLUDING MECHANICAL ABRASION - Methods described herein may be useful in the fabrication and/or screening of devices (e.g., sensors, circuits, etc.) including conductive materials. In some embodiments, a conductive material is formed on a substrate using mechanical abrasion. The methods described herein may be useful in fabricating sensors, circuits, tags for remotely-monitored sensors or human/object labeling and tracking, among other devices. In some cases, devices for determining analytes are also provided. | 12-12-2013 |
| 20130343955 | Integrated Cartridge Housings For Sample Analysis - The invention relates to a cartridge housing for forming a cartridge capable of measuring an analyte or property of a liquid sample. The housing including a top portion having a first substantially rigid zone and a substantially flexible zone, a bottom portion separate from the top portion including a second substantially rigid zone, and at least one sensor recess containing a sensor. The top portion and the bottom portion are bonded to form the cartridge having a conduit over at least a portion of the sensor. The invention also relates to methods for forming such cartridges and to various features of such cartridges. | 12-26-2013 |
| 20140004002 | PERMEABLE MEASURING CELL FOR RECEIVING MEASURING MEANS | 01-02-2014 |
| 20140105788 | MULTI-ION SENSOR - In order to provide a planar type multi-ion sensor which is easily thinned and has high measurement accuracy, a multi-ion sensor | 04-17-2014 |
| 20140314624 | STRUCTURE AND METHOD OF MANUFACTURE - A structure for a chemical sensing device, the structure comprising at least one electrically conductive element located in, and protruding from, at least one recess. A method of manufacturing the structure includes: (a) providing a template comprising at least one recess having a recess depth; (b) providing an electrically conductive material in the at least one recess; and (c) removing part of the template to decrease the recess depth of the at least one recess, thereby forming said protruding at least one electrically conductive element. | 10-23-2014 |
| 20140369888 | HUMIDITY DETERMINING DEVICE AND ENVIRONMENTAL TESTER INCLUDING THE SAME - A humidity determining device | 12-18-2014 |
| 20150071821 | Nanoscale Spintronic Chemical Sensor - In general, the present disclosure is directed toward a novel hybrid spintronic device for converting chemical absorption into a change in magnetoresistance. This device uses a novel magnetic material which depends on the attachment of an organic structure to a metallic film for its magnetism. Changes in the chemical environment lead to absorption on the surface of this organometallic bilayer and thus modify its magnetic properties. The change in magnetic properties, in turn, leads to a change in the resistance of a magnetoresistive structure or a spin transistor structure, allowing a standard electrical detection of the chemical change in the sensor surface. | 03-12-2015 |
| 20160047766 | IMPRINTED THIN-FILM ELECTRONIC SENSOR STRUCTURE - An imprinted electronic sensor structure on a substrate for sensing an environmental factor includes a cured layer having a layer surface located on the substrate. Spatially separated micro-channels extend from the layer surface into the cured layer. A multi-layer micro-wire is formed in each micro-channel. Each multi-layer micro-wire includes at least a conductive layer and a reactive layer. The reactive layer is exposed to the environmental factor. The conductive layer is a cured electrical conductor located only within the micro-channel and at least a portion of the reactive layer responds to the environmental factor. | 02-18-2016 |
| 20160077043 | BIOCHIP AND DEVICE FOR MEASURING BIOCHIP - There is provided a biochip including: a first substrate having a first surface in which a plurality of grooves are provided to accommodate at least one type of culture medium therein, and including a first electrode which is connected to the plurality of grooves; and a second substrate having a first surface in which a plurality of biomaterial fixing parts are provided to attach at least one type of biomaterial thereto, and including a second electrode which is connected to the plurality of biomaterial fixing parts. The biochip can rapidly and precisely measure a reaction of the biomaterial. | 03-17-2016 |
| 20170234820 | SURFACE APPLIED SENSORS | 08-17-2017 |
