"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8089337 | Thick film layered resistive device employing a dielectric tape A resistive device for use in providing a resistive load to a target under the application of power from a power source is provided, the resistive device being adapted for electrical connection to the power source through a pair of terminal wires. The resistive devi... | 01/03/2012 |
| 8018318 | Resistive component and method of manufacturing the same A resistive component suitable for detecting electric current in a circuit and a method of manufacturing the resistive component are provided. The resistive component includes a carrier, a resistive layer, an electrode unit, an upper oxide layer and a protective lay... | 09/13/2011 |
| 7633374 | Positive temperature coefficient (PTC) component and method for the production thereof An electrical component includes a base made of ceramic layers and electrode layers, where the electrode layers separate adjacent ceramic layers, and the ceramic layers include a ceramic material that has a positive temperature coefficient in at least one part of an... | 12/15/2009 |
| 7278201 | Method of manufacturing a resistor A high precision power resistor having the improved property of reduced resistance change due to power is disclosed. The resistor includes a substrate having first and second flat surfaces and having a shape and a composition; a resistive foil having a low TCR of ab... | 10/09/2007 |
| 7277005 | Printed circuit board including embedded resistor and method of fabricating the same Disclosed is a PCB including an embedded resistor and a method of fabricating the same. The PCB includes a plurality of circuit layers in which circuit patterns are formed. A plurality of insulating layers is each interposed between the circuit layers. The embedded ... | 10/02/2007 |
| 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 |
| 7154370 | High precision power resistors A high precision power resistor having the improved property of reduced resistance change due to power is disclosed. The resistor includes a substrate having first and second flat surfaces and having a shape and a composition; a resistive foil having a low TCR of ab... | 12/26/2006 |
| 7129814 | Chip resistor and method of making the same A chip resistor includes a metal resistor element having a flat lower surface. The lower surface is formed with two electrodes spaced from each other, and an insulating resin film is formed between these electrodes. Each of the electrodes partially overlaps the insu... | 10/31/2006 |
| 7084732 | Electroceramic component comprising inner electrodes An electrical component includes a ceramic base made up of ceramic layers, electrode levels between the ceramic layers, where each electrode level includes at least two electrodes, and contact surfaces on an outer surface of the ceramic base. The contact surfaces ar... | 08/01/2006 |
| 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 |
| 7064649 | Magneto-resistive layer arrangement and gradiometer with said layer arrangement A magnetoresistive layer system including a layer sequence including at least two magnetic layers, a non-magnetic, electrically conductive intermediate layer being arranged between them; the electrical resistance of the layer system being changeable as a function of... | 06/20/2006 |
| 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 |
| 7030728 | Layout and method to improve mixed-mode resistor performance A resistor layout and method of forming the resistor are described which achieves improved resistor characteristics, such as resistor stability and voltage coefficient of resistance. A resistor is formed from a conducting material such as doped silicon or polysilico... | 04/18/2006 |
| 6935554 | Metal/ceramic bonding article and method for producing same There is provided a method for producing a metal/ceramic bonding article, the method including the steps of: arranging a metal plate 12 of an overall-rate solid solution type alloy on a ceramic substrate 10; and heating the metal plate 12 and th... | 08/30/2005 |
| 6922131 | Electrical device An electrical device suitable for use in digital telecommunications applications is provided. The device includes a laminar PTC element composed of a conductive polymer composition sandwiched between two metal foil electrodes. A first insulating layer which is compo... | 07/26/2005 |
| 6606783 | Method of producing chip thermistors A chip thermistor has a pair of outer electrodes opposite each other with a specified distance in between on one of the surfaces of a thermistor element and an inner electrode extending inside the thermistor element so as to overlap these outer electrodes... | 08/19/2003 |
| 6570765 | Over-voltage protection for electronic circuits Over voltage protection is provided for electronic circuits by disposing one or more ground bars for diverting harmful currents away from the sensitive electronic circuit elements. The ground bars are each associated with a row of contact portions of the ... | 05/27/2003 |
| 6498068 | Methods of producing resistor elements A resistor element has a ceramic body with a first outer electrode and a second outer electrode formed on its mutually opposite externally facing end surfaces and a plurality of mutually oppositely facing pairs of inner electrodes inside the ceramic body.... | 12/24/2002 |
| 6346871 | Laminate type varistor A laminate type varistor has at least one pair of first and second inner electrodes and a varistor layer. The at least one pair of first and second electrodes and the varistor layer are laminated. A first outer electrode and a second outer electrode elect... | 02/12/2002 |
| 6340927 | High thermal efficiency power resistor A power resistor may be formed as a stacked arrangement of first and second terminal plates positioned on either side of a resistor plate and insulated therefrom by interposing first and second insulator plates. Preferably, the insulator plates are metall... | 01/22/2002 |
| 6184772 | Chip thermistors A chip thermistor has a pair of outer electrodes opposite each other with a specified distance in between on one of the surfaces of a thermistor element and an inner electrode extending inside the thermistor element so as to overlap these outer electrodes... | 02/06/2001 |
| 6104597 | Thin-film capacitor A thin-film capacitor having a first and a second capacitor element disposed on a substrate substantially on the same plane adjacent to each other and laterally spaced in a direction along the plane. Each capacitor includes a dielectric layer and two elec... | 08/15/2000 |
| 6100787 | Multilayer ceramic package with low-variance embedded resistors A multilayer electronic component (200) is provided. The component includes a substrate package assembly (202) with a set of stacked insulated sheets of a dielectric ceramic material (204, 206, 208, 210, 212). Also included are a set of embedded resistors... | 08/08/2000 |
| 5994997 | Thick-film resistor having concentric terminals and method therefor A thick-film resistor and a process for forming the resistor to have accurate dimensions, thereby yielding a precise resistance value. The resistor generally includes an electrically resistive layer and a pair of terminals, a first of which is surrounded ... | 11/30/1999 |
| 5945903 | Resettable automotive circuit protection device with female terminals and PTC element A circuit protection device including a pair of terminals to be electrically connected into an electrical circuit, a pair of spaced current-carrying extensions of the terminals, and an initially low resistance current limiting device extending between the... | 08/31/1999 |
| 5898360 | Heater for heating an automobile sensor A ceramic heater for a gas sensor has a heater substrate, a laminating substrate made of the same material as the heater substrate, and an electrode made of platinum and at least one lanthanide oxide disposed between the heater substrate and the laminatin... | 04/27/1999 |
| 5840218 | Resistance material composition Disclosed is a resistance material composition consisting essentially of at least one nitride of an element of Group VA and Group VIA and optionally containing an inorganic binder. The composition can be baked along with a multi-layered ceramic substrate ... | 11/24/1998 |
| 5764129 | Ceramic resistor, production method thereof, neutral grounding resistor and circuit breaker A ceramic resistor includes zinc oxide as a main component, and as essential components, aluminum oxide 3.0-40 mol %, magnesium oxide 2.0-40 mol %, silicon oxide 0.1-10 mol %, and at least one kind of compound 0.005-0.5 mol %, selected from a group consis... | 06/09/1998 |
| 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 |
| 5705099 | Resistive material composition, resistive paste, and resistor Disclosed are a resistive paste that can be fired in a neutral or reducing atmosphere to give a resistor having a high sheet resistivity value and a satisfactory TCR value even on low-temperature-sintering substrates, a resistive material composition that... | 01/06/1998 |
| 5587696 | High resistance polysilicon resistor for integrated circuits and method of fabrication thereof A multi-layer polysilicon resistor and a method by which the multi-layer polysilicon resistor is formed. A minimum of two polysilicon layers is formed upon an insulating layer, the insulating layer in turn being formed upon a semiconductor substrate. The ... | 12/24/1996 |
| 5567358 | Thick film resistor composition The temperature coefficient of resistance (TCR) is made zero with reduced noise in a thick film resistor composition essentially consisting of Pb2 Ru2 O6-7, organic vehicle and non-conductive glass by adding Ta2... | 10/22/1996 |
| 5408379 | Device for opening a circuit and device for protecting the circuit against surges An insulating substrate has a heat generating resistor and an electrical conductor on its surface. A pair of conductors, such as power or communication leads, are connected to a protected circuit. A rated voltage element and the heat generating resistor i... | 04/18/1995 |
| 5313184 | Resistor with PTC behavior An electric resistor has a resistor body arranged between two contract terminals. This resistor core includes an element with PTC behavior which, below a material-specific temperature, forms an electrically conducting path running between the two contact ... | 05/17/1994 |
| 5296835 | Variable resistor and neuro device using the variable resistor for weighting A Neuro device is a representation of a nerve cell constituting human brains, eyes and the like, that is, a neuron by an electronic circuit. A circuit of the Neuro device according to the present invention comprises n (n : natural number) input terminals ... | 03/22/1994 |
| 5247277 | Electrical devices An electrical device in which a first connection element is in electrical contact with a resistive element. The first connection element defines a cavity into which, when the cavity is empty, a second connection element can be inserted. The second connect... | 09/21/1993 |
| 5208576 | Electrical external resistance An electrical external resistor with a plate-like, electrical insulating carrier element and a flat resistance element arranged on the upper side of the carrier element. The carrier element has several films forming a closed coating and varying in their e... | 05/04/1993 |
| 4613822 | Variable high-current electrical load bank with rapid adjustment over a wide range of currents An adjustable electrical load bank which comprises an upper and lower horizontal, electrically conducting plates mounted parallel to each other on a frame and both electrically insulated from this frame. The lower plate is fixedly mounted on the frame whi... | 09/23/1986 |
| 4128826 | Electrical high-voltage apparatus An electrical high-voltage apparatus wherein a plurality of resistor disks are arranged along and carried by a shaft and wherein a centering body is also arranged along the region of the shaft carrying the resistor disks. The centering body comprises firs... | 12/05/1978 |