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| Number | Title | Issue Date |
| 7741950 | Humidity sensor and a method for manufacturing the same The invention relates to a humidity sensor comprising a sensor element, a molding, which preferably consists of a thermoplastic material or a two-component polyurethane, epoxy or silicone casting and which is adapted to adhere to the sensor element, a dead-space vol... | 06/22/2010 |
| 7573365 | Humidity sensor A system and method for a resistor for detecting the relative level of moisture content in a humid environment. The resistor has a first layer of conductive material on a top surface of a substrate having a bend. The conductive material is exposed to atmospheric con... | 08/11/2009 |
| 7332995 | Capacitive humidity sensor and method for manufacturing the same A capacitive humidity sensor includes: a humidity sensing element; a substrate; and an insulation film. The humidity sensing element includes a pair of comb-shape electrodes and a humidity sensitive film. The comb-shape electrodes are surrounded by a dam provided by... | 02/19/2008 |
| 7311816 | Device for determining the residual liquid content of solids cakes in centrifuges A device for determining the residual liquid content of solids cakes in a centrifuge basket. The device includes two electrodes protruding through a wall of the basket and into the solids cake; a conductivity or capacitance measuring device (13) measuring the... | 12/25/2007 |
| 7295126 | Perforated plane moisture sensor A moisture sensing apparatus, system and method. In general, a surface can be provided, and one or more conductor pairs located in a plane of the surface. Each conductor of the conductor pair(s) is insulated from one another. Water droplets forming on the conductor ... | 11/13/2007 |
| 7256542 | Method and device for detecting moisture in electroluminescence display devices Methods and devices are disclosed for detecting undesired moisture for a luminescence display device. A moisture detector is encapsulated between two shields with one or more display elements, and has a layer of metal placed in a predetermined location close to the ... | 08/14/2007 |
| 7213441 | Method for adjusting sensor characteristics of humidity sensor An inspection device inspects a humidity sensor having a sensor portion and a circuit portion, which are integrated into one chip. The inspection device includes: an inspection chamber for accommodating a wafer, in which a plurality of humidity sensors are disposed ... | 05/08/2007 |
| 7213462 | Humidity sensor and composite sensor having humidity detecting function A humidity sensor includes a resin molding body having a wall portion as a barrage, a chip having at least a humidity sensing function and fixed to a portion of the resin molding body inside the wall portion, and a terminal conductor insert-molded in the resin moldi... | 05/08/2007 |
| 7210333 | Humidity sensor and method of using the humidity sensor A humidity-sensitive porous layer (13) of a humidity-sensitive element section (3) of a humidity sensor (1) is formed of a crystalline phase oxide grains such as Al2O3—SnO2—TiO2 and of a glass phas... | 05/01/2007 |
| 7180302 | Method and system for determining cracks and broken components in armor A ceramic armor system with built-in conductive circuit attached to a ceramic component. The conductive circuit can be accessed by a user at contacts provided in the system. The circuit is arranged so that damage such as cracks that occurs within the ceramic compone... | 02/20/2007 |
| 7151881 | Impurity-based waveguide detectors An optical circuit including a semiconductor substrate; an optical waveguide formed in or on the substrate; and an optical detector formed in or on the semiconductor substrate, wherein the optical detector is aligned with the optical waveguide so as to receive an op... | 12/19/2006 |
| 7114848 | Environment sensor An environment sensor (11) for measuring the temperature and humidity can be miniaturized and can respond at high speed. The environment sensor (11) includes a temperature sensing portion (111) having a temperature-sensitive material (1) ... | 10/03/2006 |
| 7113069 | Aligned particle based sensor elements The present invention relates to a sensor array for detecting an analyte in a fluid, comprising first and second sensors formed by chemically sensitive resitors, wherein the first sensor comprises a region of aligned conductive material; or where each of the sensors... | 09/26/2006 |
| 7104138 | Strain detector A strain detector includes an insulating substrate, a power electrode, output electrodes and a ground electrode which are disposed over the insulating substrate, a strain-resistance element provided over the insulating substrate and coupled to the power electrode, t... | 09/12/2006 |
| 7077004 | Method and device for measuring humidity A method and a device for measuring humidity may be suitable for determining the relative humidity in the high-humidity range. The device includes a sensor device, as well as a circuit connected to the same. The sensor device includes a capacitive humidity-sensor el... | 07/18/2006 |
| 7062968 | Temperature control apparatus for humidity sensor A temperature control apparatus for a humidity sensor is provided for preventing impurities from sticking on a sensor element, while protecting the sensor element from cracking due to the humidity sensor heated by a heater in the presence of condensation, to maintai... | 06/20/2006 |
| 7059170 | Method and apparatus for measuring relative humidity of a mixture A method and apparatus for measuring relative humidity of a mixture that provides a quick response time for thermal lag while affording protection to fragile sensors. In one aspect, the invention is an apparatus comprising: a chamber having a membrane covering an op... | 06/13/2006 |
| 7032448 | Capacitive humidity sensor A capacitive humidity sensor includes a detection portion and a reference portion. The detection portion includes detection electrodes and a moisture sensitive film. The reference portion includes reference electrodes and a moisture permeation film as a capacitance ... | 04/25/2006 |
| 7034652 | Electrostatic discharge multifunction resistor The present invention provides a multifunction resistor having an improved voltage variable material (“VVM”). More specifically, the present invention provides a polymer VVM that has been formulated with a high percentage loading of conductive and/or semiconduct... | 04/25/2006 |
| 7021124 | Method and apparatus for detecting leaks in a fluid cooling system One embodiment of the present method and apparatus for detecting leaks in a fluid cooling system enables a user to rapidly detect fluid leaks in the vicinity of a microprocessor chip or other delicate item. In one embodiment, the invention comprises a detector and a... | 04/04/2006 |
| 6951682 | Porous coatings bearing ligand arrays and use thereof Articles comprising substantially uniform porous coatings, which may be photopatterned, are provided. The use of such porous coatings increases the surface density of attached compounds within, for example, ligand arrays prepared by methods such as regionally select... | 10/04/2005 |
| 6894512 | Method for detecting hidden corrosion and a sensor for use in the same The present invention provides a method for determining whether or not moisture appeared in a hidden place during a period T, the method comprising: (i) introducing to the hidden place a moisture sensitive element; the moisture sensitive element comprising: a) a die... | 05/17/2005 |
| 6835920 | Microwave oven A microwave oven includes a magnetron to generate microwaves and a cooking chamber to contain food to be cooked using the generated microwaves. The microwave oven further includes a humidity detector to detect moisture formed from the food being cooked. The humidity... | 12/28/2004 |
| 6832507 | System for detecting the presence of moisture The system comprises at least one electronic sensor for detecting the presence of moisture. The system further comprises at least one reading device for obtaining information from the sensor about the presence of moisture. The sensor comprises a resonant circuit whi... | 12/21/2004 |
| 6812821 | Humidity sensor A humidity sensor comprising an insulating substrate, a detection electrodes and a moisture-sensitive layer, wherein the moisture-sensitive layer is a porous layer and has a thickness not greater than 200 μm. ... | 11/02/2004 |
| 6615659 | Humidity sensor and method for manufacturing the same In a humidity sensor device comprising a pair of opposed electrodes disposed on an insulating substrate to define a gap therebetween and a humidity sensitive thin film lying on the gap, the humidity sensitive thin film is a thin film comprising a polymer ... | 09/09/2003 |
| 6450015 | Ambient condition sensor for a photosensitive media cartridge A photosensitive media cartridge includes an ambient condition sensor mounted in the cartridge for sensing ambient conditions in the cartridge. When the cartridge is positioned at a media transfer position on an image-forming device that permits the conve... | 09/17/2002 |
| 6342295 | Moisture sensor A moisture sensor includes a moisture-sensitive film between a pair of electrodes having conductive particles dispersed in a hygroscopic polymer. The hygroscopic polymer is a polymer comprising a polyether amine, an epoxy compound, and optionally a water-... | 01/29/2002 |
| 6310555 | Water leak detector A system for the detection of the presence of undesirable moisture and drops or droplets of liquid effusing from piping systems at the first stage of appearance, comprising a low-battery alert, provision for the device to remain operative for at least 48 ... | 10/30/2001 |
| 6087924 | Gas sensors and methods of manufacturing the same In a gas sensor which uses CuO as a p-type semiconductor, by adding Na2 CO3 in excess of 1 wt % relative to CuO, sensitivity to gases such as H2, NO, NO2 and SO2 is suppressed, whereby selectivity for... | 07/11/2000 |
| 6063486 | Moisture sensor comprising conductive particles and a hygroscopic polymer of polyvinyl alcohol A moisture sensitive film having conductive particles dispersed in a hygroscopic polymer is disposed between a pair of electrodes to construct a moisture sensor. The hygroscopic polymer is a modified polyvinyl alcohol which is obtained by saponifying a po... | 05/16/2000 |
| 5955179 | Coating for the structured production of conductors on the surface of electrically insulating substrates A coating for the structured production of conductors on the surface of electrically insulating substrates, in particular for producing sensor elements and printed circuit boards. The coating is formed from a doped tin oxide layer having the composition S... | 09/21/1999 |
| 5726622 | Dew sensor having a conductive power-containing moisture sensing material disposed between opposing electrodes A dew sensor used in a video tape recorder, and the like, can be mounted on a printed circuit board remote from the cylinder. A pair of electrodes are formed on an insulated substrate, a moisture sensing material is disposed on the insulated substrate con... | 03/10/1998 |
| 5631418 | Electrically detected impedance detector for the measurement of physical quantities, in particular of temperature or humidity, and process for the manufacture of said detectors Electrical impedance detector for measurement of physical quantifies, in particular of temperature or humidity. The detector comprises conductor electrodes (10a, 10b; 10A,10W), between which the electrical impedance (CM) that represents the phy... | 05/20/1997 |
| 5608374 | Humidity sensor and a method of producing the humidity sensor A humidity sensor to detect humidity by utilizing a change in the electric characteristics of the device corresponding to a change in the humidity. A solution containing manganese acetate, lead acetate and potassium acetate is coated on an alumina substra... | 03/04/1997 |
| 5365784 | Humidity sensing apparatus and method The present invention is a humidity sensor which can be used in a radiosonde. The humidity sensor includes a heat sink attached to the radiosonde, a Peltier cooler attached to the heat sink, a carbon element with a thermistor attached therein or thereon, ... | 11/22/1994 |
| 5348761 | Use of a swellable plastic and process for making a resistive moisture sensor A process is disclosed for producing a swellable plastic resistive moisture sensor comprising dispersing an additive selected from the group consisting of carbon in powder, dust or soot form, carbon black, graphite, a metal in powder or dust form, and mix... | 09/20/1994 |
| 5317274 | Humidity meter A humidity meter includes a humidity-frequency converter (2) which is essentially a pulse oscillator, the oscillation frequency of which depends upon the impedance of a humidity sensor (1), a differentiation circuit (3) and a wave-form shaping circuit (4)... | 05/31/1994 |
| 5206615 | Sensor for measuring solute concentration in an aqueous solution A sensor for measuring concentrate of solute in an aqueous solution in which a humidity sensor is enclosed and sealed within a porous fluorine polymer film that is liquid water impermeable but water vapor permeable. The sensor operates by measuring water ... | 04/27/1993 |
| 5136274 | Humidity sensor A chemically and physically stable humidity sensor including a porous sintered body and electrodes, which is formed by bringing a humidity sensor including a porous sintered body and electrodes into contact with a solution of a polyurethane resin.... | 08/04/1992 |
