Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
PatentStorm News
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 |
| 8149082 | Resistor device The resistor device is provided with a resistive plate (11) of metal plate material, which is used as a resistance body; a radiative plate (15) of metal plate material, which is spaced from the resistive plate and intercrossed on the resistive plate; a... | 04/03/2012 |
| 7420454 | Cement resistor A resistive element in the form of a bent metal plate is placed in a box-shaped case and has electrodes exposed out of the box-shaped case. A heat radiator in the form of a bent metal plate is also placed in the box-shaped case and has heat radiating electrodes expo... | 09/02/2008 |
| 7403093 | Starter relay A starter relay comprises a container composed of an electrical insulating hard resin, a resistor having a positive resistance temperature coefficient and housed in the container, and contact springs of feeding devices having conduction and resilience configured to ... | 07/22/2008 |
| 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 |
| 7190252 | Surface mount electrical resistor with thermally conductive, electrically insulative filler and method for using same An electrical resistor is provided with a resistive element and terminations extending from opposite ends of the resistive element. The terminations are folded under the resistive element, with a thermally conductive and electrically insulative filler being sandwich... | 03/13/2007 |
| 7161461 | Injection molded trim resistor assembly A trim resistor assembly includes a trimmable resistor element embedded within a polymeric housing. The trimmable resistor element includes trimmable resistive film disposed on a nonconductive substrate. Lead wires are connected to contact pads on the substrate. The... | 01/09/2007 |
| 7038572 | Power chip resistor A method and apparatus for a stacked power chip resistor is disclosed. The invention provides for multiple power chip resistors to be stacked, providing for encapsulant such as glass to separate each power chip resistor and a metal barrier such as nickel plating on ... | 05/02/2006 |
| 7003963 | Cooling of receive coil in MRI scanners Equipment for cooling an HTS receive coil (4) in an MRI scanner to a temperature below the transition temperature of the HTS comprises a refrigeration unit such as a Stirling cooler (1) the cold head (2) of which is connected by a non-metallic t... | 02/28/2006 |
| 6975026 | Package for mounting semiconductor device A package for mounting a semiconductor device has a surface exposed to an atmosphere. The exposed surface is covered with a covering material such as a paint, a tape or a seal. ... | 12/13/2005 |
| 6541137 | Multi-layer conductor-dielectric oxide structure A dielectric film is formed on a free-standing conductive metal layer to form a multi-layer foil comprising a conductive metal layer, a barrier layer and a dielectric oxide layer. Such multi-layer foils are mechanically flexible, and useful for the manufa... | 04/01/2003 |
| 6535105 | Electronic device and process of making electronic device An electronic device and process of making the device is disclosed. The device includes a multi-sided body defined by a plurality of electrode plates arranged in a stack. A resin layer is applied to both conductive and semiconductive regions of the device... | 03/18/2003 |
| 6208233 | Trim resistor connector and sensor system An improved IDC trim resistor connector assembly made up of a generally open top cup shape connector with side wall slots and an interior first array of terminal posts arranged for passage therethrough of a first lead wire of sensor circuitry. A first sta... | 03/27/2001 |
| 6140908 | Focus volume coupling device of FBT A focus volume of an FBT (fly back transformer) focus unit and its coupling device are disclosed, in which a volume board is provided in a small size, but the voltage breakdown resisting strength is reinforced. At least one or more round resistor patterns... | 10/31/2000 |
| 5961868 | Tightenable electrical sleeve heater An electrical heater for heating an object having a generally cylindrical outer surface has a helicoidal coil having a plurality of turns centered on an axis and inner and outer ends and adapted to fit around the object in contact with the outer surface t... | 10/05/1999 |
| 5910189 | Liquid level sensor It is aimed to present a liquid level detector that can be assembled by simply stacking component parts one upon another, without using any soldering work at all. In the liquid level detector, a thermistor (7) is placed on an electrode (2a) of element hol... | 06/08/1999 |
| 5811761 | Ceramic sheath device with multilayer silicon nitride filler insulation A ceramic sheath capable of preventing damage to conductive wire rod exhibits excellent thermal resistance and a thermal shock resistance. A conductive wire rod is provided in a protective pipe of silicon nitride, silicon carbide or SiAlON so as to extend... | 09/22/1998 |
| 5621378 | Heatsink-mountable power resistor having improved heat-transfer interface with the heatsink A power resistor having much improved heat dissipation ability to an underlying heatsink because a step or protuberance is provided that cooperates with the mounting bolt or screw to largely nullify the effects of molding-caused camber or curvature.... | 04/15/1997 |
| 5430429 | Ceramic resistor wherein a resistance film is embedded A resistor 1 in which at least one resistance film 4 is embedded in a ceramic sintered body 3, glass is diffused into the sintered body 3 to form a glass diffusion layer 6, and both end faces 4a and 4b of the resistance film 4 are respectively exposed to ... | 07/04/1995 |
| 5300917 | Junction box having integrally formed shunt A junction box incorporating an integrally formed shunt busbar. The shunt busbar incorporates a first pair of terminals to act as leads to couple the shunt busbar in a current loop of a circuit, and a second pair of terminals to couple a voltage sensing d... | 04/05/1994 |
| 5278939 | Vacuum-molded ceramic fiber electric radiant heating unit with resistance heating coils internally free of fibers A vacuum-molded electrical radiant heating unit having a resistance heating coil embedded in a ceramic fiber body is prepared by a process in which a resistance heating coil (5) is placed on a sieve-like tray (1), above a suction box, and a slip is applie... | 01/11/1994 |
| 5210517 | Self-resetting overcurrent protection element A self-resetting overcurrent protection element uses an element body made up of a mixture of polymers and carbon black grafted with polymers. A resilient sheathing material covering the element body permits free expansion of the element body to permit the... | 05/11/1993 |
| 5196678 | Radiant heater, as well as method and apparatus for its production A radiant heater with partly embedded and otherwise projecting heating coils (16) is produced in that the coils (16) are placed in grooves (14) of a tool or mould (13), the interior of the heating coils is partly filled with a filling material (17) and th... | 03/23/1993 |
| 5189387 | Surface mount device with foldback switching overvoltage protection feature A nonlinear resistive surface mount device for protecting against electrical overvoltage transients is disclosed which includes a pair of conductive sheets and a foldback switching material disposed between the pair of conductive sheets. This configuratio... | 02/23/1993 |
| 5153555 | Electronic device comprising a plate-shaped electronic element and a support and overcurrent protector for the same There is disclosed an electronic device comprising a plate-shaped electronic element having electrode films. The electronic element is elastically supported by spring members in an electrically insulating case so as to be respectively in contact with the ... | 10/06/1992 |
| 5140298 | Ceramic base component packaging assembly A ceramic base component packaging assembly with high thermal transfer rates. The packaging assembly includes a molded plastic cover that receives spring washers, ceramic pads, resistive elements or other electronic components, and a thermally conductive ... | 08/18/1992 |
| 5111178 | Electrically conductive polymer thick film of improved wear characteristics and extended life An electrically conductive polymer film composition includes a polymeric resin, an electrically conductive substance intimately mixed in sufficient quantity with the polymeric resin to render the polymeric resin electrically conductive, and particles, suc... | 05/05/1992 |
| 4789512 | Method of enclosing an object within a homogeneous block An object such as a fuse is enclosed within a homogeneous block of microporous thermal insulation material by a method which includes forming first and second blocks of insulation material having a relatively low density, arranging the object between co-o... | 12/06/1988 |
| 4770833 | Method of enclosing an object A method of enclosing an object, such as an electronic component, within a homogeneous block of microporous thermal insulation material comprises charging a first predetermined amount of a loose microporous thermal insulation mixture into a die and compac... | 09/13/1988 |
| 4725810 | Method of making an implanted resistor, and resistor obtained thereby This method of making an implanted resistor comprises the steps of implanting the resistor with ordinary techniques and deposition over the implanted resistor of a polysilicon layer having a set thickness and fully covering the resistor. Thus, the resulti... | 02/16/1988 |
| 4716396 | High power density, low corona resistor A high power density, low corona resistor comprises a dielectric thermally conductive substrate having upper and lower surfaces and having a resistance element mounted on the upper surface thereof. The resistance element comprises a thin film of electrica... | 12/29/1987 |
| 4672358 | Surface-mounted power resistors A surface-mount power resistor may be fabricated using a power resistor of conventional design as its core. A conventional resistor is reworked so as to flatten its leads from a point near their emergence from the generally tubular body of the resistor to... | 06/09/1987 |
| 4617450 | Process for manufacture of a vacuum-moulded electrical heating unit A resistance heating coil is placed on a sieve like tray above a suction box, and a slip of ceramic fibers is placed in the suction box, so that a ceramic fiber layer builds up when suction is applied. Portions of the sieve like tray are closed in regions... | 10/14/1986 |
| 4573806 | Thermocouple isolation block system An aircraft engine which may, for example, be a turbine engine, is provided with an engine temperature thermocouple harness for monitoring the temperature of the aircraft engine. A protective isolation assembly allows for the use of two separate aircraft ... | 03/04/1986 |
| 4292505 | Furnace for generating heat by electrical resistance A furnace having a body in which electrically resistive material is positioned between two electrodes so that heat can be generated by passing a current through the material. The resistive material is a mixture of carbonized plant material and a non-organ... | 09/29/1981 |
| 4280114 | Discontinuous metal and cermet film resistors and strain gauges Improved discontinuous and cermet film resistors and strain gauges are disclosed wherein the film is maintained in a constant humidity in the range of 15% to 45% thereby substantially increasing the stable life of the strain gauge.... | 07/21/1981 |
| 4231011 | Discontinuous metal film resistor and strain gauges An improved discontinuous film resistor and strain gauge is disclosed wherein the discontinuous metal film is maintained in a constant humidity in the range of 15% to 45% thereby substantially increasing the life of the strain gauge.... | 10/28/1980 |
| 4179797 | Method of making a resistor array A resistor array formed by the process of forming a plurality of holes or grooves in an electrically insulating substrate, filling the holes or grooves completely with a flowable, electrical resistance material, and then hardening the resistance material.... | 12/25/1979 |
| 4157529 | Lead for resistor element A resistor device of simple construction particularly adapted for use as a precision, low ohmic value resistor. The terminal leads are axially aligned and extend outwardly from a molded housing. The inner end of each lead is shaped into a flat surface to ... | 06/05/1979 |
| 4152689 | Electrical resistor package which remains unaffected by ambient stresses and humidity The present electrical resistor package has a naked electrical resistor element which is designed to provide quantitative resistance to electrical current flow, said element is initially encapsulated in a flexible coating, such as silicone wax, which abso... | 05/01/1979 |
| 4121189 | Electrical resistor and method of making same An electrical resistor and method of making same comprising an elongated resistor element having end sections and a resistance material extending therebetween, and a connecting part which is pressed onto at least one end section of the resistor for being ... | 10/17/1978 |
