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| Number | Title | Issue Date |
| 7423514 | Constant-power constant-temperature resistive network A thermally stabilized device is described. Single or multiple input ports are accommodated and single and multiple power ports are described. The variation of resistance of a resistor subject to varying power dissipations is minimized by injecting complementary pow... | 09/09/2008 |
| 7227443 | Fixed network resistor A fixed resistor network has an insulating substrate, a plurality of film resistors arranged on a top surface of the insulating substrate, terminal electrodes formed for the film resistors on each lengthwise sidewall of the insulating substrate at a given pitch alon... | 06/05/2007 |
| 7154373 | Surface mounting chip network component A surface mounting chip network component in which a network having three or more odd number of terminals are formed on the surface of an insulating substrate and Tomb Stone Phenomenon is suppressed. Even number of network circuits are formed on the surface of the i... | 12/26/2006 |
| 7102484 | High power resistor having an improved operating temperature range A high power resistor includes a resistance element with first and second leads extending out from the opposite ends thereof. A heat sink of dielectric material is in heat conducting relation to the resistance element. The heat conducting relationship of the resista... | 09/05/2006 |
| 7081805 | Constant-power constant-temperature resistive network A thermally stabilized device is described. Single or multiple input ports are accommodated and single and multiple power ports are described. The variation of resistance of a resistor subject to varying power dissipations is minimized by injecting complementary pow... | 07/25/2006 |
| 7049929 | Resistor process Circuit panels are provided with resistors in vias extending between the top and bottom surfaces of the panels. The resistors may be formed by depositing a composite in each via, as by depositing a dispersion of a conductive material and a dielectric or by depositin... | 05/23/2006 |
| 7049928 | Resistor and method of manufacturing the same The resistor of the present invention comprises a substrate, a pair of electrodes, and a resistor element comprising rectangular sections connected to the pair of electrodes and a S-shaped section disposed between the rectangular sections and is free of trimming por... | 05/23/2006 |
| 6911896 | Enhanced linearity, low switching perturbation resistor strings A resistor string that may have two resistor matrices laid out back-to-back with selected or all nominally equipotential nodes of the two matrices being interconnected. In certain applications, the matrix may have switch connections at each node, with the second mat... | 06/28/2005 |
| 6856235 | Methods for manufacturing resistors using a sacrificial layer A method of making resistors includes providing a sacrificial layer. Conductive material is then formed over a region of the sacrificial layer. Resistive material is then deposited over the first surface of the sacrificial layer such that the resistive material cove... | 02/15/2005 |
| 6747543 | Resistor for driving motor for air conditioner blower A resistor for driving a motor for an air conditioner blower is provided, in which internal resistance bodies are stacked over one after another between insulation plates in the resistor, to accordingly reduce the volume of the entire of the resistor is reduced, and... | 06/08/2004 |
| 6720859 | Temperature compensating device with embedded columnar thermistors A temperature compensating device comprises one or more columnar thermistors embedded within a substrate. Because the thermistors are substantially covered by the substrate, they are less susceptible to changes in air temperature and to temperature gradients. Moreov... | 04/13/2004 |
| 6606023 | 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 lamina... | 08/12/2003 |
| 6577225 | Array resistor network An array resistor network that has a high density of resistors per unit area. The array resistor network includes a ceramic substrate having a top and bottom surface. Apertures extend through the substrate between the top and bottom surfaces. Recesses are... | 06/10/2003 |
| 6556123 | Polymer chip PTC thermistor A chip PTC thermistor is provided which is capable of increasing the rate of increase in resistance when an overcurrent is applied, thereby increasing the breakdown voltage. The PTC thermistor comprises: a first main electrode and a first sub-electrode di... | 04/29/2003 |
| 6555787 | Three conductor heating element A heating element, including a sensor conductor, two resistive conductors, with one resistive conductor arranged on one side of the sensor conductor and an other resistive conductor arranged on an other side of the sensor conductor such that the sensor co... | 04/29/2003 |
| 6542066 | Electric assembly and device An electrical device comprising a pair of electrodes, three substrates, and PTC elements inserted between the substrates, each PTC element having metal layers on both surfaces, in which each of the outer substrates has a metal layer on the inner surface, ... | 04/01/2003 |
| 6507272 | Enhanced linearity, low switching perturbation resistor string matrices Enhanced linearity, low switching perturbation resistor string matrices. The resistor strings are arranged in an array of a plurality of rows of resistive elements and electrically arranged with rows equally spaced above and below the physical centerline ... | 01/14/2003 |
| 6392530 | Resistor array board A plurality of protective resistors can be easily inserted between circuit forming elements, and opposite ends of each protective resistor can be properly press-contacted to each circuit forming element. The protective resistor can be easily replaced when... | 05/21/2002 |
| 6288627 | Embedded trimmable resistors A resistor may be embedded into a substrate. A portion of the resistor may be exposed, by segmenting the substrate, for instance, so that the resistor may be trimmed to a desired resistance level. Alternatively, a portion of a resistor may be embedded int... | 09/11/2001 |
| 6237411 | Limit-level sensor and method of determining the undershooting or overshooting of an intended level of liquid in a container A limit-level sensor for measuring level of a liquid has a resistance element which has an electric resistance which suddenly varies a transition temperature which lies above the maximum liquid temperature. The resistance element is first heated by electr... | 05/29/2001 |
| 6236301 | Cantilevered deflection sensing system A deflection sensing system for detecting deflection includes one or more deflection sensors between opposing sets of extensions. When one set of extensions is moved toward an opposing set of extensions, the deflection sensors are deflected. A preferred d... | 05/22/2001 |
| 6215388 | Parallel connected PTC elements A plurality of PTC material layers and a plurality of metal plates are sandwiched together with one adjacent pair of metal plates connected in series through one layer of PTC material. The remaining PTC material layers are connected in parallel with the o... | 04/10/2001 |
| 6087923 | Low capacitance chip varistor and fabrication method thereof A low capacitance chip varistor and a fabrication method thereof are described, which are capable of protecting the electronic elements of an electronic instrument from an external and internal surge and being well applicable to an electronic element whic... | 07/11/2000 |
| 5990778 | Current-limiting resistor having PTC behavior The current-limiting resistor has two connection electrodes (1, 2) which are arranged parallel to one another, a resistance body (3) which has PTC behavior and with which large-area contact is made by the connection electrodes (1, 2) and at least one vari... | 11/23/1999 |
| 5982273 | Multi-element type chip device and process for making the same A multi-element type chip device of the present invention includes an elongate chip substrate (10), 2n pairs of opposed electrodes (12a) [n representing a positive integer] formed on a surface of the chip substrate (10) at a generally constant interval lo... | 11/09/1999 |
| 5977862 | Polymer high voltage current limiters packaged in series A polymer high voltage current limiter comprising, per phase, a fast circuit-breaker pole, a semi-fast protection circuit-breaker pole, and a set of polymer-based elements having very low resistivity, filled with carbon black, and connected in series and ... | 11/02/1999 |
| 5977863 | Low cross talk ball grid array resistor network A resistor network for terminating active electronic devices has low cross talk noise between the adjoining resistors and the conductors that connect the resistors to other electronic packages. A substrate has a top and a bottom surface. Resistors are loc... | 11/02/1999 |
| 5914559 | Resistance element and cathode ray tube A resistance element which is formed on a substrate by resistors and which divides and supplies high voltage to an electron gun of a cathode ray tube, wherein part or all of the substrate is covered by a high resistance conductive material layer as a topm... | 06/22/1999 |
| 5905427 | Integrated circuit resistor array An integrated circuit resistor array suitable for use as resistors included in a high performance analog integrated circuit is provided. A plurality of resistor stripes are collectively arranged in a region on a substrate. The resistor stripes are made of... | 05/18/1999 |
| 5844468 | Chip network electronic component Disclosed is a chip network electronic component prevents a short circuit between adjacent electrodes upon soldering, and the strength of the projecting portion is increased to improve reliability. The chip network electronic component includes an insulat... | 12/01/1998 |
| 5756971 | Ceramic heater for a gas measuring sensor Proposed is a heater arrangement for a measuring sensor for determining components in gases, particularly in exhaust gases of internal combustion engines. The heater arrangement comprises at least two heating elements (10, 11) which are disposed at least ... | 05/26/1998 |
| 5734313 | Chip-type composite electronic component A chip-type composite electronic component according to the present invention comprises an insulating substrate (1), a common electrode (2) formed on the substrate (1), a plurality of individual electrodes (3a-3h) formed on the substrate (1) to be spaced ... | 03/31/1998 |
| 5692291 | Method of manufacturing an electrical heater A smoking system is provided in which a replaceable cigarette containing tobacco flavor material is electrically heated by a set of electrical heater elements contained within a lighter to evolve tobacco flavors or other components in vapor or aerosol for... | 12/02/1997 |
| 5635893 | Resistor structure and integrated circuit A resistor structure (10) having a heating element (35) and a resistor (32), and a method of trimming the resistor (32). The heating element (35) is separated from the resistor (32) by a layer of dielectric material (19). The resistor (32) has a layer of ... | 06/03/1997 |
| 5600176 | Integrated voltage divider Integrated voltage divider comprising partial resistors (R1 ,R2) formed of paths of polycrystalline semiconductor material applied over a dielectric layer (4) on a semiconductor substrate (5). Under the paths, each forming a partial resistor (R1,R2) in th... | 02/04/1997 |
| 5519374 | Hybrid thermistor temperature sensor A hybrid thermistor temperature sensor includes a two-pole network of temperature-dependent resistors being in thermal and electrical contact with each other. The two-pole network has at least one temperature-dependent resistor with a positive temperature... | 05/21/1996 |
| 5504470 | Resistor trimming process for high voltage surge survival Several trim patterns are illustrated which are suited for use in high voltage, surge prone environments. The invention combines a block resistor with a simple scan cut and two or more plunge cuts to simply form a resistor. The resulting resistor is immun... | 04/02/1996 |
| 5483217 | Electronic circuit device An electronic circuit device decreases dispersion in the output of the circuit caused by changes in the resistance of the resistors resulting from stress. Resistor positions are selected on the circuit board so that a change in the circuit output caused b... | 01/09/1996 |
| 5382938 | PTC element A PTC element has at least one body and two electrodes. The body or bodies has/have and is/are two parallel surfaces, of an electrically conductive polymer composition with a positive temperature coefficient. At least one of the parallel surfaces on the b... | 01/17/1995 |
| 5352870 | Strip heater with predetermined power density A resistance strip heater includes a pair of elongated, mutually parallel electrical conductors or buses lying on a dielectric substrate. Each bus includes a conductive region extending toward the other conductor, and the locations of the conductive regio... | 10/04/1994 |
