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| Number | Title | Issue Date |
| 8174354 | Method and apparatus for control of failed thermistor devices A thermistor device includes include supports, contacts and offset posts configured to assist the fracturing of failed thermistor “pills” and to distribute the fragments of the fractured pills into compartment away from electrically conductive contacts in order ... | 05/08/2012 |
| 8169294 | Over-current protection device An over-current protection device comprises two metal foils and a positive temperature coefficient (PTC) material layer. The PTC material layer is sandwiched between the two metal foils and has a volume resistivity below 0.1 Ω-cm. The PTC material layer includes (i... | 05/01/2012 |
| 8164414 | Polymer PTC element There is provided a polymer PTC device which has a further improved performance. Such PTC device comprises (A) a polymer PTC element containing (a1) an electrically conductive filler and (a2) a polymer material, and (B) at least one metal electrode disposed o... | 04/24/2012 |
| 8164415 | PTC device There is provided a PTC device which allows compact connection as much as possible. Such PTC device includes a polymer PTC element (102) including (A) a polymer PTC component (112) an electrically conductive filler, and a polymer material; and (B) a me... | 04/24/2012 |
| 8154379 | Electrical PTC thermistor component, and method for the production thereof An electrical PTC thermistor component includes a base that includes a peripheral surface, first and second faces on different sides of the component, and first and second conductive layers, each of which is on at least one of the first and second faces. The first c... | 04/10/2012 |
| 8130072 | Vanadium oxide thermal microprobes A temperature probe includes a substrate, a cantilever body portion formed on the substrate, having an anchor portion held in contact to the substrate and a free end portion extending out of the surface of the substrate, and a sputter-deposited thermistor sensor por... | 03/06/2012 |
| 8115587 | NTC thermistor ceramic, method for producing NTC thermistor ceramic, and NTC thermistor A ceramic main body 1 is composed of a (Mn,Ni)3O4- or (Mn,Co)3O4-based ceramic material. A first phase has a spinel structure. A second phase is formed of high-resistance plate crystals. The second phase is present ... | 02/14/2012 |
| 8111126 | Over-current protection device and manufacturing method thereof An over-current protection device comprises a PTC material layer, a first electrode layer, a second electrode layer, a first side electrode and a second side electrode. The PTC material layer is sandwiched between the first electrode layer and the second electrode l... | 02/07/2012 |
| 8111127 | Thermistor A thermistor comprises a main body, two electric plugs, a metallic fixing piece, and a cover. The electric plugs are located on one end of the main body, and the metallic fixing piece is located on the side of the main body. The metallic fixing piece has a connectin... | 02/07/2012 |
| 8106740 | Resistance thermometer A resistance thermometer, composed of a plurality of components, at least comprising: at least one substrate, which is composed essentially of a material, whose thermal coefficient of expansion is essentially greater than 10.5 ppm/K; at least one resistive element, ... | 01/31/2012 |
| 8063730 | Thermistor and electrical device employed with same An electrical device includes a thermistor and at least two electrodes electrically connected to the thermistor and to which a source of electrical power is applied to cause current to flow through the thermistor. The thermistor may be a composite and includes a pol... | 11/22/2011 |
| 8058966 | PTC thermistor and method for protecting circuit A PTC thermistor provided with a conductive member having PTC characteristics and two electrodes each placed in two different locations on the conductive member. The, conductive member and at least one of the two electrodes is bonded via an adhesive which has conduc... | 11/15/2011 |
| 8044763 | Surface-mounted over-current protection device A surface-mounted over-current protection device with positive temperature coefficient (PTC) behavior is disclosed. The surface-mounted over-current protection device comprises a first metal foil, a second metal foil corresponding to the first metal foil, a PTC mate... | 10/25/2011 |
| 8035474 | Semi-conductive ceramic material and NTC thermistor using the same A NTC thermistor which has superior linearity of resistance-temperature characteristic is provided without depending on a combination of two or more kinds of material but with a single semi-conductive ceramic material. As the semi-conductive ceramic material of nega... | 10/11/2011 |
| 8004385 | Electrical protective device An electrical protective device is described which has two PTC thermistor components which are in the form of plates and are arranged in a common housing. The housing in each case has an opening on two opposite sides, which opening corresponds to the dimensions of t... | 08/23/2011 |
| 7986214 | Electrical assembly with PTC resistor elements An electrical assembly includes at least two PTC-resistor elements, each of which has a base body having a flat shape. Each base body has main surfaces that contain electrodes. A carrier plate has spacers for positioning base bodies of the at least two PTC resistor ... | 07/26/2011 |
| 7973639 | PTC-resistor A PTC-resistor includes a base body made of a ceramic material with a positive temperature coefficient of resistance. The base body extends along a median plane, and is confined by surfaces. At least one surface is configured to electrically connect the base body. A... | 07/05/2011 |
| 7969278 | Thermistor A thermistor has a sealing portion of glass which seals at least a thermistor element body, first and second electrodes, and ends of the first and second lead wires and an insulating portion which covers portions of the first and second lead wires exposed from the s... | 06/28/2011 |
| 7965169 | Surface mounted chip resistor with flexible leads A chip resistor having first and second opposite ends includes a rigid insulated substrate having a top surface and an opposite bottom surface, a first electrically conductive termination pad and a second electrically conductive termination pad, both termination pad... | 06/21/2011 |
| 7948354 | Surface-mount negative-characteristic thermistor A surface-mount negative-characteristic thermistor includes a ceramic body composed of a semiconductor ceramic material including at least one of Mn, Ni, and Ti; external electrodes disposed on surfaces of the ceramic body; and plating films disposed on surfaces of ... | 05/24/2011 |
| 7944337 | Stacked PTC thermistor and process for its production A stacked PTC thermistor 1 comprises a body 4 obtained by alternating lamination of a semiconductor ceramic layer 2 and an internal electrode 3, and a pair of external electrodes 5a, 5b provided at the edge fac... | 05/17/2011 |
| 7928828 | Electrical assembly with PTC resistor elements An electrical assembly includes a housing and at least two PTC (Positive Temperature Coefficient) resistor elements in the housing. Each of the at least two PTC resistor elements includes a body having a flat construction and electrodes on main surfaces of the body.... | 04/19/2011 |
| 7920045 | Surface mountable PPTC device with integral weld plate A surface mount circuit protection device includes a laminar PTC resistive element having first and second major surfaces and a thickness therebetween. A first electrode layer substantially coextensive the first surface is formed of a first metal material of a type ... | 04/05/2011 |
| 7915994 | Thermal variable resistance device with protective sheath A sensor and method of manufacturing a variable resistance sensor with a protective sheath that is cost effective and highly reliable, with stable resistance with an operating range of up to 1700° C. in hostile environments. The sheath is formed of highly stable di... | 03/29/2011 |
| 7884699 | Variable resistor element, manufacturing method thereof, and memory device provided with it A variable resistor element comprising a first electrode, a second electrode, and a variable resistor positioned between the first and second electrodes, and changing in electric resistance when a voltage pulse is applied between the both electrodes, has posed probl... | 02/08/2011 |
| 7880581 | PTC thermistor A PTC thermistor includes two electric conducting plates connected with different electrodes and an intermediate insulating plate clamped between the two electric conducting plates. The intermediate insulating plate has its surface bored with openings at locations r... | 02/01/2011 |
| 7880580 | Thermistor having doped and undoped layers of material According to some embodiments, a first layer of doped material may be provided to form a resistor. A second layer of undoped material may then be formed on the first layer. The first layer might comprise, for example, a layer of doped silicon carbide while the secon... | 02/01/2011 |
| 7864026 | Flexible averaging resistance temperature detector A temperature sensor. The sensor comprises a wire comprising a resistance temperature detector (RTD) sensing material wrapped around a flexible insulated metal core wire to form an assembly. A first end of the sensing wire is electrically connected to a first end of... | 01/04/2011 |
| 7855631 | Composite device A first terminal electrode is provided directly on one longitudinal end surface of a chip thermistor element, a third terminal electrode is provided directly on the other end surface, a second terminal electrode is provided on a top surface via an insulating layer, ... | 12/21/2010 |
| 7852192 | Protective circuit board and overcurrent protection device thereof The over-current protection device of the present invention can be used for over-current protection to PCM. The over-current protection device comprises a PTC device, at least one insulation layer; at least one electrode layer and at least one conductive channel. Th... | 12/14/2010 |
| 7847673 | Duplex-attachment of ceramic disk PTC to substrates This is a ceramic disk PTC and heater assembly, and a method for attaching one to the other, the combination useful in the heating elements of solid ink printing apparatus. The ceramic disk PTC attachment method is made up of a low melting temperature solder and a h... | 12/07/2010 |
| 7830240 | Multilayer positive temperature coefficient thermistor A multilayer positive temperature coefficient thermistor includes a ceramic body having semiconductor ceramic layers and internal electrodes, the semiconductor ceramic layers being mainly composed of BaTiO3 and containing semiconductor-forming agents, the... | 11/09/2010 |
| 7791450 | Ceramic component and method of manufacturing the same Provided are a ceramic component and a method of manufacturing the ceramic component. The ceramic component includes a previously fired insulation ceramic base, a functional ceramic sheet bonded to the insulation ceramic base by a diffusion bonding layer having an a... | 09/07/2010 |
| 7768376 | Conformal mesh for thermal imaging This invention provides thermal sensors and imagers that are flexible and capable of conforming to curved surfaces and corresponding methods of making and methods of thermal sensing. The thermal sensors contain an array of thermal resistors patterned in a row and co... | 08/03/2010 |
| 7764161 | Barium titanate-based semiconductor porcelain composition and PTC element including the same A barium titanate-based semiconductor ceramic composition and a PTC element that have a high Curie temperature and a low electrical resistivity at room temperature and that exhibit a desired rate of change in resistance are provided. The barium titanate-based semico... | 07/27/2010 |
| 7746212 | Temperature sensor and method for its production In a method for producing a temperature sensor, there is first provided a substrate, on the first surface of which there is arranged a sensor structure having a first end and a second end, wherein the sensor structure substantially completely covers the first surfac... | 06/29/2010 |
| 7701322 | Surface-mounted over-current protection device A surface-mounted over-current protection device with positive temperature coefficient (PTC) behavior is disclosed. The surface-mounted over-current protection device comprises a first metal foil, a second metal foil corresponding to the first metal foil, a PTC mate... | 04/20/2010 |
| 7679485 | Multilayer positive temperature coefficient thermistor A multilayer positive temperature coefficient thermistor that has semiconductor ceramic layers containing a BaTiO3-based ceramic material as a primary component, and at least one element selected from the group consisting of Eu, Gd, Tb, Dy, Y, Ho, Er, and... | 03/16/2010 |
| 7663469 | Thermistor device and method for manufacturing the same A thermistor device includes a thermistor element unit with a lead conductor and a terminal plate welded outside a plate portion thereof to a distal end of the lead conductor. ... | 02/16/2010 |
| 7663468 | Conductive member and manufacturing method thereof, and electric device and manufacturing method thereof An electric device 1 is an organic positive thermistor in which, between two plate electrodes 2a and 2b constituting an electrode couple 2, a conductive member 41 is disposed in a state being in a close contact with t... | 02/16/2010 |
