Electrical resistors inventions 10/07

20070247274 - Array of independently-addressable resistors, and method for production thereof: The arrays of independently-addressable resistors are commonly used to control miniature elements. The invention proposes solving the problem caused by the loss of power dissipated in the addressed resistor by choosing, for this resistor, a material with a negative thermal coefficient resistance, which enables the addressing output of this resistor... Agent: Hutchison Law Group PLLC

20070236325 - Resistive elements using carbon nanotubes: Resistive elements include a patterned region of nanofabric having a predetermined area, where the nanofabric has a selected sheet resistance; and first and second electrical contacts contacting the patterned region of nanofabric and in spaced relation to each other. The resistance of the element between the first and second electrical... Agent: Wilmer Cutler Pickering Hale And Dorr LLP

20070229208 - Varistor body and varistor: where, Z0 is the Zr content at a reference depth where the Zr content becomes almost constant, Z1 is the Zr content at a level of 2 μm at the surface side above the reference depth, P0 is the Pr content at the reference depth, and P1 is the Pr... Agent: Oliff & Berridge, PLC

20070229209 - Varistor body and varistor: A preferred varistor body has a structure of alternately laminated internal electrode layer and varistor layer made of a varistor material. The varistor layer has a composition containing Zn, Co, Pr, Li, and Zr. The analysis of varistor body in the depth direction from the surface thereof gives the Li... Agent: Oliff & Berridge, PLC

20070229213 - Ptc element: A PTC element has an element body in which an electroconductive filler is dispersed in a crystalline polymer, a pair of lead terminals compressed with the element body in between, and a protecting film covering a portion of the element body not compressed against the pair of lead terminals. Each... Agent: Oliff & Berridge, PLC

20070229210 - 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, a resistor layer is provided adjacent to... Agent: Darby & Darby P.C.

20070229211 - Chip type variable electronic part and chip type variable resistor: A chip type variable electronic part includes an insulating substrate with a through hole, an adjustment rotor formed of a metal plate in a bowl shape to receive a screwdriver and disposed on the upper surface of the insulating substrate, an internal terminal electrode plate made of a metal plate... Agent: Hamre, Schumann, Mueller & Larson, P.C.

20070229212 - Changing an electrical resistance of a resistor: An electrical structure. The electrical structure includes a resistor having a length L and an electrical resistance R(t) at a time t; and a laser radiation directed onto a portion of the resistor, wherein the portion of the resistor includes a fraction F of the length L, wherein the laser... Agent: Schmeiser, Olsen & Watts