Electrical resistors inventions 03/07

20070069847 - Assembly for protection against an explosion: An assembly for protection against explosion in form of a substantially plate-shaped multi-ply element includes two or outer walls (1,2) and at least one intermediate layer of a ceramic material presenting a density in the range of approximately 0.3 to 1.5 g/cm3, a pore diameter in the range of approximately... Agent: Birch Stewart Kolasch & Birch

20070069848 - Ptc element and production process thereof: A method of manufacturing a PTC element comprising a pair of lead terminals bonded together by thermocompression with a matrix held therebetween comprises a matrix preparing step of preparing a matrix constructed by dispersing a conductive filler into a crystalline polymer; a terminal preparing step of preparing a pair of... Agent: Oliff & Berridge, PLC

20070069849 - Magnetic field detector and manufacturing method thereof: A magnetic field detector includes: a magnet; a magnetic resistance element used for detection having a layer structure containing a ferromagnetic layer, the resistance being changed when a direction of magnetization of the ferromagnetic layer is changed; and a magnetic resistance element used for reference having the substantially same layer... Agent: Leydig Voit & Mayer, Ltd

20070063810 - Resilient material variable resistor: A variable resistance device comprises a resistive member having a resistive resilient material. A first conductor is configured to be electrically coupled with the resistive member at a first contact location over a first contact area. A second conductor is configured to be electrically coupled with the resistance member at... Agent: Haverstock & Owens LLP

20070063811 - Linear resilient material variable resistor: A variable resistance device comprises a resistive member having a resistive resilient material. A first conductor is configured to be electrically coupled with the resistive member at a first contact location over a first contact area. A second conductor is configured to be electrically coupled with the resistance member at... Agent: Haverstock & Owens LLP

20070063812 - Rotary variable resistor and a method of adjusting a resistor value of the same: A rotary variable resistor including a rotator having at an upper part a disk-shaped flange provided with a rectangular first adjustment hole penetrating a circumferential portion thereof and at a lower part a cylindrical shaft, and an adjustment plate having a slider at a lower surface thereof and a second... Agent: Ratnerprestia

20070063813 - Film resistor and a method for forming and trimming a film resistor: A thin film resistor (5) of an integrated circuit comprises an elongate resistive film (7) extending between electrical contact pads (10,11). A low impedance element (20) overlays and is electrically coupled to a portion of the resistive film (7) in an intermediate portion (22) thereof adjacent a second side edge... Agent: Wolf Greenfield & Sacks, PC

20070057760 - Over-current protection device and manufacturing method thereof: An over-current protection device comprises a chemically cross-linked positive temperature coefficient (PTC) layer and two electrode foils that can be connected to a power source to allow current to flow through the chemically cross-linked polymeric PTC layer. The chemically cross-linked polymeric PTC layer comprises at least two different PTC polymer... Agent: Seyfarth Shaw LLP

20070057759 - 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 conductivity and which at the same time deteriorates... Agent: Tyco Electronics Corporation

20070052516 - Passive saw-based hydrogen sensor and system: A hydrogen detecting system is characterized by a passive surface acoustic wave (SAW) sensor. The sensor includes a piezoelectric substrate having a self assembled monolayer arranged on at least a portion of the substrate to create a hydrophobic surface. A palladium nanocluster thin film is deposited on the monolayer and... Agent: Schiff Hardin, LLP Patent Department

20070046419 - Temperature sensor control apparatus: A temperature sensor control apparatus includes a reference potential section, a driving potential section set to a driving electric potential, a temperature sensor configured to vary a resistance in accordance with a temperature, and disposed between the reference potential section and the driving potential section, a conduction path, two reference... Agent: Sughrue Mion, PLLC

20070046420 - Ptc element: An object is to provide a PTC element capable of preventing lead terminals from delaminating from an element body. This PTC element 1 is a PTC element comprising an element body 10 in which an electroconductive filler is dispersed in a crystalline polymer, and a pair of terminal electrodes 12,... Agent: Oliff & Berridge, PLC

20070046421 - Structure and method for forming thin film resistor with topography controlled resistance density: A method for forming a thin film resistor includes forming a topographic feature on a semiconductor substrate, forming an isolation layer over the topographic feature, and forming a resistor film layer over the isolation layer. Portions of the resistor film layer are patterned and removed so as to form the... Agent: Cantor Colburn LLP - IBM Fishkill