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| Number | Title | Issue Date |
| 8183973 | Highly dense and non-grained spinel NTC thermistor thick film and method for preparing the same Disclosed herein are a highly dense and nano-grained NTC thermistor thick film and a method for preparing the same, and specifically, an NTC thermistor thick film vacuum deposited by spraying a spinel grained ceramic powder containing Ni and Mn on one side of the su... | 05/22/2012 |
| 7602273 | Semiconductor device, method of manufacturing the same, and electronic device A semiconductor device is disclosed that includes a resistive element including a first resistor having a positive temperature coefficient and a second resistor having a negative temperature coefficient. The first resistor includes a metal film. ... | 10/13/2009 |
| 7371459 | Electrical devices having an oxygen barrier coating An electrical device includes two electrodes and a conductive polymer layer, containing a mixture of a polymer and a conductive filler, separating the electrodes. A oxygen barrier material containing a thermosetting polymer component is present on the exposed surfac... | 05/13/2008 |
| 7372159 | Semiconductor device A glass-sealed type semiconductor device has Dumet electrodes, a glass sealing member, and a semiconductor element tightly sealed in a cavity constituted by the Dumet electrodes and the glass sealing member. The semiconductor element is constituted by a Schottky bar... | 05/13/2008 |
| 7355504 | Electrical devices An electrical device which comprises first and second laminar electrodes and a laminar PTC resistive element sandwiched between them, the device comprising (a) a main portion which comprises a main part of the first electrode, a ma... | 04/08/2008 |
| 7320762 | Polymer compound with nonlinear current-voltage characteristic and process for producing a polymer compound The polymer compound contains a polymer matrix and a filler embedded in the matrix. The filler comprises two filler components with nonlinear current-voltage characteristics deviating from one another. By selection of suitable amounts of these filler components, a p... | 01/22/2008 |
| 7317239 | Method for manufacturing a resistor A method of manufacturing a resistor is provided. At first, a semiconductor layer including at least a high resistance region and a low resistance region is formed on a substrate. Following that, a first ion implantation process is performed to the entire surface of... | 01/08/2008 |
| 7304562 | Organic PTC thermistor and production There is provided a process for producing an organic PTC thermistor including the steps of: mixing an organic binder with a filler to obtain a mixture; forming on a first conductive foil, a mixture layer including ... | 12/04/2007 |
| 7283033 | Axial leaded over-current protection device An axial leaded over-current protection device comprised of a plurality of PTC devices, a first terminal metal strip, and a second terminal metal strip. One end of the first terminal metal strip diverges into a plurality of electrode strips, and the plurality electr... | 10/16/2007 |
| 7232527 | Sintered body for thermistor devices, thermistor device and temperature sensor A sintered body for thermistor device comprising: at least one element selected from elements of group 3 in a periodic table proviso that La is excluded; at least one element selected from elements of group 2 in a periodic table; Mn; Al; and oxygen, and being substa... | 06/19/2007 |
| 7215236 | Electric component, method for the production thereof and use of the same An electrical component having a base body includes a layer stack of mutually overlapping, electrically conductive electrode layers that are separated from one another by electrically conductive ceramic layers. The electrically conductive ceramic layers are composed... | 05/08/2007 |
| 7183891 | Direct application voltage variable material, devices employing same and methods of manufacturing such devices A voltage variable material (“VVM”) including an insulative binder that is formulated to intrinsically adhere to conductive and non-conductive surfaces is provided. The binder and thus the VVM is self-curable and applicable in a spreadable form that dries before... | 02/27/2007 |
| 7173512 | Thermistor having improved lead structure and secondary battery having the thermistor A thermistor of which resistance is changed depending on temperature and a secondary battery to which the thermistor is attached are disclosed. The thermistor is attached to an object via a lead which is made of different kinds of materials. The lead is configured s... | 02/06/2007 |
| 7160617 | Boron doped diamond A layer of single crystal boron doped diamond produced by CVD and having a total boron concentration which is uniform. The layer is formed from a single growth sector, or has a thickness exceeding 100 μm, or has a volume exceeding 1 mm3, or a combination... | 01/09/2007 |
| 7161779 | Anti-pinch and electrical motor protection device An anti-pinch and electric motor protection device includes a positive temperature coefficient circuit protector having a predetermined temperature threshold and is adapted to be in electrical series with a DC circuit to allow current flow in a first direction and i... | 01/09/2007 |
| 7154371 | Negative temperature coefficient attenuator A temperature tracking attenuator includes a substrate having a circuit chip with electrical connections providing a thermal interface with adjacent circuitry providing an attenuator component package. The package comprises a thermal layer on one side which is adhes... | 12/26/2006 |
| 7154372 | Micromechanical flow sensor with tensile coating A sensor integrated on a semiconductor device (1), in particular a flow sensor, comprises a measuring element (2) on a membrane (5). In order to prevent a buckling of the membrane (5) a tensile coating (9) is applied. The coating c... | 12/26/2006 |
| 7148785 | Circuit protection device A circuit protection device (31) suitable for surface mounting on a substrate (19). The device has a laminar PTC resistive element (3) which is composed of a conductive polymer composition and is positioned between first and second electrodes ( | 12/12/2006 |
| 7145432 | Flexible switching devices An electronic resistor user interface comprises flexible conductive materials and a flexible variably resistive element capable of exhibiting a change in electrical resistance on mechanical deformation and is characterised by textile-form electrodes (10,12) a... | 12/05/2006 |
| 7132922 | Direct application voltage variable material, components thereof and devices employing same A voltage variable material (“VVM”) including an insulative binder that is formulated to intrinsically adhere to conductive and non-conductive surfaces is provided. The binder and thus the VVM is self-curable and applicable in a spreadable form that dries before... | 11/07/2006 |
| 7109841 | Surface-mount positive temperature coefficient thermistor and manufacturing method therefor A surface-mount positive temperature coefficient thermistor includes a disk-shaped positive temperature coefficient thermistor element having electrodes provided on opposing main surfaces thereof, an insulating case having an inner space with the thermistor element ... | 09/19/2006 |
| 7104684 | On-chip digital thermometer to sense and measure device temperatures A system and method for sensing the temperature of a device. This includes the establishment of a programmable current from an on-chip source, which in turn is used to produce a temperature dependent voltage from a temperature dependent resistive device. The tempera... | 09/12/2006 |
| 7075408 | Laminate-type positive temperature coefficient thermistor A positive temperature coefficient thermistor has a non-heating portion which is not heated when a voltage is applied between first and second internal electrodes. The non-heating portion is provided in the approximate center of the positive temperature coefficient ... | 07/11/2006 |
| 7069641 | Method for preparing composite materials of a positive temperature coefficient thermistor The present invention discloses a method for preparing a conductive polymeric composite material having carbon black utilized to a structure for composite materials of a positive temperature coefficient thermistor. The method first provides a metal laminated materia... | 07/04/2006 |
| 7067733 | Thermoelectric material having crystal grains well oriented in certain direction and process for producing the same Thermoelectric material is produced through a process sequence including a liquid quenching, a primary solidification such as a hot pressing or extrusion and an upset forging; although the C-planes of the crystal grains are directed in parallel to the direction in w... | 06/27/2006 |
| 7061364 | 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... | 06/13/2006 |
| 7056453 | Thermistor device, thermistor device manufacturing method and temperature sensor The thermistor portion of a thermistor device consists of a mixed sintered body of aY(Cr0.5Mn0.5)O3.bAl2O3 made of the perovskite-type compound Y(Cr0.5Mn0.5)O3 and Al2... | 06/06/2006 |
| 7053748 | Electrical devices A composite circuit protection device includes a laminar insulating member and first and second laminar circuit protection devices. Each of the first and second laminar circuit protection devices includes (1) a first laminar electrode, (2) a second laminar electrode... | 05/30/2006 |
| 7049926 | Single and multi layer variable voltage protection devices and method of making same Disclosed is a variable voltage protection device for electronic devices which in one aspect comprises a thin layer of neat dielectric polymer or glass positioned between a ground plane and an electrical conductor for overvoltage protection, wherein the neat polymer... | 05/23/2006 |
| 7038896 | Solid state motor protector A solid state motor protector has a first PTC chip (positive temperature coefficient of resistivity) electrically connected in series relation with a second resistor having a generally fixed temperature coefficient of resistivity and mechanically coupled to the firs... | 05/02/2006 |
| 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 |
| 6987440 | Electrical devices containing conductive polymers An electrical device in which an element composed of a conductive polymer composition is positioned in contact with the first surface of a metal electrode, the first surface having a center line average roughness Ra and a reflection density RD, the produc... | 01/17/2006 |
| 6975031 | Semiconductor device and chip carrier There are provided a carrier substrate, a temperature sensing resistor film formed directly on the carrier substrate, first and second conductive patterns formed on the carrier substrate and connected to both ends of the temperature sensing resistor film respectivel... | 12/13/2005 |
| 6965293 | Electrical device having PTC conductive polymer An electrical device including a PTC conductive polymer sheet, and first and second electrodes physically contacted with opposite surfaces of the conductive polymer sheet is disclosed. The first and second electrodes have a plurality of protrusions protruded from su... | 11/15/2005 |
| 6958443 | Low power thermoelectric generator Disclosed is a foil segment for a thermoelectric generator comprising a top plate disposed in spaced relation above a bottom plate. An array of the foil segments is perpendicularly disposed in side-by-side arrangement between and in thermal contact with the bottom a... | 10/25/2005 |
| 6911893 | Ceramic electronic component A ceramic electronic component includes a component body having semiconductive ceramic layers and internal electrodes. The semiconductive ceramic layers and the internal electrodes are alternately laminated. The semiconductive ceramic layers have a relative density ... | 06/28/2005 |
| 6878311 | Ceramic mixture having negative temperature co-efficient, a thermistor containing the ceramic mixture and a process for preparing same A ceramic mixture composition having negative temperature coefficient of resistance (NTC), the said composition comprising about 95 weight % of the tetragonal form of Mn3O4 and about 5 weight % of La2O3, the said ceramic m... | 04/12/2005 |
| 6873244 | Surface mountable laminated thermistor device The present invention discloses a surface mountable laminated thermistor device which utilizes current-used double sided metal foil clad substrate as a base material and a PTC conductive composite that complies with circuit connection design combinations among elect... | 03/29/2005 |
| 6853527 | Over-current protection apparatus for high voltage The present invention discloses an over-current protection apparatus for high voltage, which connects the ceramic current-sensing element and polymer current-sensing element in series to form a novel over-current protection apparatus. By the characteristic of the po... | 02/08/2005 |
| 6842103 | Organic PTC thermistor In an organic PTC thermistor comprising a thermistor body comprising a high-molecular weight organic compound-containing matrix and metal particles, conductive non-metallic fines, typically carbon black, are attached to surfaces of the metal particles. The device ha... | 01/11/2005 |
