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Easthom, Karl D.


Primary examiner statistics: 559 patents; average approval time: 870 days
Assistant examiner statistics: 163 patents; average approval time: 807 days

Patents as Assistant Examiner


1          
NumberTitleIssue Date
7345461Semiconductor circuit device and data processing system
Occurrence of power supply noise arising in connection with a step-down action at the time of turning on power supply is to be restrained. A step-down unit is provided with a switched capacitor type step-down circuit and a series regulator type step-down circuit, an...
03/18/2008
7071811High performance voltage control diffusion resistor
The present invention provides a diffusion resistor that is formed in the substrate. A diffusion region is formed within the substrate that contains a first and second contact region. These contact regions extend downward from the surface of the substrate. A third c...
07/04/2006
6114942PTC device and battery pack using the same
A PTC device which surely achieve effective space utilization while easily excluding the possibility of the formation of a short circuit. The PTC device includes a PTC component 3 comprising a first electrode 11, a second electrode 13, and a PTC element 9...
09/05/2000
6114943Resistive hydrogen sensing element
Systems and methods are described for providing a hydrogen sensing element with a more robust exposed metallization by application of a discontinuous or porous overlay to hold the metallization firmly on the substrate. An apparatus includes: a substantial...
09/05/2000
6114944Remote control for audio and video electronic appliances
A remote control device has a compartment enclosed by a housing and receiving a printed board that carries a potentiometer for controlling the volume of sound of an electronic sound device and a switch for deactivating a selected playing selection. The re...
09/05/2000
6111494Adjustable voltage divider produced by hybrid technology
The invention relates to an adjustable voltage divider arrangement produced by hybrid technology, having a first current-carrying ohmic resistance layer arranged between two printed conductors and a second resistance layer, which is electrically connected...
08/29/2000
6104277Polysilicon defined diffused resistor
A resistor having a diffused impurity region in a semiconductor substrate, an insulated gate surrounding and defining the resistor, and a pair of separated conductive contacts to the diffused region within the boundary of the insulated gate for applying a...
08/15/2000
6052049Flexible film with a non-tensioned electrical circuit mounted thereon
A flexible element for use in a rotary position sensor or the like having the direction of electrical traces on one surface of the element altered without putting the traces into tension. The directional change is accomplished by partially splitting the f...
04/18/2000
6043731Current limiting device
A current limiting device having an electrical superconductor for attachment in an electrical circuit, the superconductor being made of material having a critical current density which varies with applied magnetic field. A magnetic field generator generat...
03/28/2000
6028502Potentiometer detent
A potentiometer is disclosed that provides a user with tactile feel while making adjustments. The potentiometer includes a housing having a central bore with a rotor extending therein. A knob having a protrusion is operably connected to the rotor along wi...
02/22/2000
6020809Mounting structure for thermistor with positive resistance-to-temperature characteristic
A thermistor with positive resistance-to-temperature characteristic used in a overcurrent protection circuit has electrodes on mutually opposite main surfaces and is mounted to a substrate having electrically conductive members such that deterioration of ...
02/01/2000
6020808Multilayer conductive polymer positive temperature coefficent device
A conductive polymer PTC device includes upper, lower, and center electrodes, with a first PTC conductive polymer layer between the upper and center electrodes, and a second PTC conductive polymer layer between the center and lower electrodes. Each of the...
02/01/2000
6016097Motion transducer
A motion transducer having a user moveable plunger which compresses a spring for generating a force proportional to plunger displacement and applying the generated force to an actuator telescoped onto the plunger. The actuator has an elastomeric pad on th...
01/18/2000
6014073Temperature sensor element, temperature sensor having the same and method for producing the same temperature sensor element
A temperature sensor element for measuring the temperature of exhaust gas from car engines comprises a metallic support having a shape of a flat board, a first electric-insulating film existing on the support, a first temperature sensitive film existing o...
01/11/2000
6011459Voltage-dependent non-linear resistor member, method for producing the same and arrester
A voltage-dependent non-linear resistor member, a method for producing the same, and an arrester equipped with the same. The member is produced by a process comprising the addition of at least one oxide of a rare earth element selected from Y, Ho, Er and ...
01/04/2000
6008719Electrical control device with crosstalk correction, and application thereof to magnetic write/read heads
This electrical control device with crosstalk correction includes several devices each electrically controllable by a limiter resistor. The current limiter resistors are resistive limiter elements in plane layers positioned on a first substrate face. At l...
12/28/1999
6005473Rotary operation type variable resistor
A rotary operation type variable resistor including a resistor base and a holder, on which a sliding-element supporting member is rotatably retained, are placed in a case provided with only one opening for component insertion. An operating lever is fixedl...
12/21/1999
5999080Frequency dependent resistive element
A frequency dependent resistor in which the length of the current path across the resistor varies as a function of the frequency of the electrical signals being passed therethrough. The resistor uses the principal known as skin effect to direct relatively...
12/07/1999
5999081Shielding unique for filtering RFI and EFI interference signals from the measuring elements
A temperature measurement system provides improved thermal sensors, including thin film and wire wound RTD's having fast and accurate measurement response times. Thermal sensor housing materials are matched to those of the material being measured, thereby...
12/07/1999
5999084Variable-conductance sensor
A sensor having a housing; two highly conductive elements fixed in-part within the housing and in-part exposed external of the housing; the conductive elements separated from one another within the housing in a normally open arrangement. A resilient dome-...
12/07/1999
5994996Thin-film resistor and resistance material for a thin-film resistor
A metal alloy having an intrinsically low TCR, and which preferably comprises a metal oxide and forms part of the resistance material in a quantity of 15-60 vol. %. The best results are achieved with a resistance material which comprises an alloy of CuNi ...
11/30/1999
5990778Current-limiting resistor having PTC behavior
The current-limiting resistor has two connection electrodes (1, 2) which are arranged parallel to one another, a resistance body (3) which has PTC behavior and with which large-area contact is made by the connection electrodes (1, 2) and at least one vari...
11/23/1999
5990779Electronic apparatus and surface mounting devices therefor
A thermistor for surface mounting includes a first conductive terminal member, a case having a top opening, a planar thermistor element having electrodes on mutually opposite main surfaces thereof, and a second conductive terminal member having at one end...
11/23/1999
5982271Organic positive temperature coefficient thermistor
An organic positive temperature coefficient thermistor contains polyethylene oxide where Mw>2,000,000 and conductive particles each having spiky protuberances. Preferably, the thermistor is prepared by blending the polyethylene oxide with the conductive p...
11/09/1999
5977861Current limiting device with grooved electrode structure
A current limiting device utilizes an electrically conductive composite material and an inhomogeneous distribution of resistance structure. The current limiting device has a conducting filler and at least two electrodes, where at least one of the electrod...
11/02/1999
5977862Polymer high voltage current limiters packaged in series
A polymer high voltage current limiter comprising, per phase, a fast circuit-breaker pole, a semi-fast protection circuit-breaker pole, and a set of polymer-based elements having very low resistivity, filled with carbon black, and connected in series and ...
11/02/1999
5973588Multilayer varistor with pin receiving apertures
A composition material for use in manufacturing a varistor consists of the following constituents: a) zinc oxide, b) ceramic structure influencing additives selected from the group consisting of bismuth oxide, boric acid, chromium oxide, cobalt oxide, man...
10/26/1999
5963125Electronic devices having reduced destruction of internal elements upon malfunction
A positive thermistor device includes a positive thermistor element having a pair of opposed electrodes, each of which receives compressive force elastically applied from a corresponding one of spring contact members to hold the thermistor element at a pr...
10/05/1999
5959524Temperature sensor
In a temperature sensor with a platinum resistance thermometer accommodated in a tube-shaped housing, the platinum resistance layer belonging thereto should be protected against pollution or contamination of the platinum, since the electrochemical charact...
09/28/1999
5959525Variable resistance slide control device with a switch
A variable resistance control device and switch has a base, made of insulating material, a rheostat, mounted to the base, and a switch, mounted to the base. The rheostat includes a variable resistor trace, positioned on the base, a collector trace, positi...
09/28/1999
5955936PTC circuit protection device and manufacturing process for same
Electrical devices having a PTC element of a polymer having conductive particles dispersed therein. The PTC element is coated with a conductive layer and has electrodes with a plurality of voids affixed to opposing surfaces. The devices are made by disper...
09/21/1999
5955938RuO2 resistor paste, substrate and overcoat system
A ceramic circuit substrate having a resistor deposited on a surface thereof, said ceramic substrate having a coefficient of thermal expansion ranging from 5.0×10-6 /° C. to 7.0×10-6 /° C., the resistor being coated with a glass ...
09/21/1999
5952911Thermistor chips and methods of making same
A thermistor chip is made by first forming first metal layers with a three-layer structure at both end parts of a thermistor element and then forming second metal layers with a three-layer structure on the first metal layers so as to have edge parts that ...
09/14/1999
5949325Joystick pointing device
A curved disc joystick or pad with improved performance, reliability and durability can be used as a cursor pointing device for computers, remote controls, video games, consumer electronics, industrial controllers, automotive and other applications. A con...
09/07/1999
5945904Giant magnetoresistors with high sensitivity and reduced hysteresis and thin layers
A giant magnetoresistive assembly includes a first film fabricated of a ferromagnetic material having a first predetermined thickness, a second film fabricated of a non-ferromagnetic material formed to said first film having a second predetermined thickne...
08/31/1999
5942968Overvoltage suppressor
The overvoltage suppressor contains two connecting fittings (1, 2), which are spaced apart from one another along an axis (z) and between which at least one cylindrical varistor element (8) is arranged. The connecting fittings (1, 2) and the at least one ...
08/24/1999
5939973Rotary variable resistor with switch
A rotary variable resistor with switch having a switch mechanism, in particular, a rotary variable resistor with switch corresponding to an ultrathin rotary variable resistor. Such a rotary variable resistor having a switch mechanism has dimensions, espec...
08/17/1999
5936512Rotary potentiometer
A rotary potentiometer device (1) has a rotary potentiometer (4) disposed within a housing (2) and a handle (7) above the housing (2) for rotating a resistive disk (6) of the rotary potentiometer (4). A latching device latches the handle (7) with the uppe...
08/10/1999
5933070High-voltage variable resistor
A high-voltage variable resistor capable of significantly small-sizing a circuit board as compared with the prior art. A terminal fitment is provided so as to act as an electrical connector for establishing electrical connection between a slide element fi...
08/03/1999
5929746Surface mounted thin film voltage divider
A surface mounted thin film precision voltage divider is provided by incorporating two resistors on a single base of the same size and configuration as prior art surface mounted thin film precision resistors. Because the resistors were made at the same ti...
07/27/1999
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