Electrical resistors inventions 07/08

20080180210 - Positive temperature coefficient thermistor device: A positive temperature coefficient thermistor device includes a laminate of a lower insulating plate, a positive temperature coefficient thermistor element, and terminal assemblies. The laminate is disposed in a hollow portion in a metal body. The device also includes a pressure spring made of a metal plate that is bent... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20080180209 - Porous gallium oxide films and methods for making and patterning the same: Gallium oxide films for sensing gas comprise Ga2O3 and have a porosity of at least about 30%. Such films can be formed by coating a substrate with a solution comprising: a gallium salt and a porogen comprising an organic compound comprising a hydrophilic chain and a hydrophobic chain; and heating... Agent: General Electric Company Global Research

20080174400 - Magnetically-and electrically-induced variable resistance materials and method for preparing same: Provided are new compositions of ruthenates in the pervoskite and layered pervoskite family, wherein the ruthenate compositions exhibit large magnetoresistance (MR) and electric-pulse-induced resistance (EPIR) switching effects, the latter observable at room temperature. This is the first time large MR and EPIR effects have been shown together in ruthenate compositions.... Agent: Montgomery, Mccracken, Walker & Rhoads, LLP

20080164970 - Contactless magnetic potentiometer: A contactless potentiometer is described wherein the conductive and resistive traces of the potentiometer are contained within a sealed channel formed of non-conductive material. The electrical gap between the conductive and resistive traces is bridged by a magnetically reactive contactless tap. A magnetic force is applied to the tap through... Agent: Kirton And Mcconkie

20080164971 - Chip type variable electronic part and chip type variable resistor: In a chip type variable electronic part including an insulating substrate, and an adjustment rotor made of a metal plate rotatably mounted on an upper surface of the insulating substrate, in which the rotor is constituted of a first plate formed in a bowl shape to receive a screwdriver that... Agent: Hamre, Schumann, Mueller & Larson, P.C.

20080157917 - Method to increase capacity of a passive element to inrush current: A method to increase capacity of a passive element to accommodate inrush current is mounting a metal pad in a circuit to evenly distribute the current over a greater area so heating caused by the current to be distributed over a greater area. The passive element has two electrodes attached... Agent: Joe Mckinney Muncy