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5285519 |
Transparent film radiant heat source for incubators having hook retaining means
A radiant heater in the form of an overlay for an incubator hood. The heater has an optically transparent, radiotransparent and phototherapy transparent electrically conductive coating, preferably...
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5283545 |
Variable resistors
This invention relates to a voltage pulse controlled variable resistor in which at least 2 leads are placed in direct contact with a material containing silica derived from hydrogen silsesquioxane....
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5276423 |
Circuit units, substrates therefor and method of making
A layer of ceramic material such as alumina is plasma-deposited on a sheet member such as molybdenum or a composite laminate of molybdenum and graphite or other material of low thermal expansion to...
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5274351 |
Resistance unit for motor speed control
The present invention relates to a resistance unit for controlling a motor speed of driving a blower of an automobile air conditioner. The resistance unit includes a resistance circuit board...
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5274352 |
Thick film resistive element, thick film printed circuit board and thick film hybrid integrated circuit device and their production methods
A thick film resistive element superior in moisture resistance characteristic is provided, which includes a pair of film-like conductors formed on an insulating substrate, a film-like resistor...
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5254969 |
Resistor combination and method
An apparatus and method by which a flat film-type resistor is intentionally caused to thermal-shock fracture in response to a predetermined high-voltage overload condition. A stressed spring wire...
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5254968 |
Electrically conductive plastic speed control resistor for an automotive blower motor
A blower motor speed control resistor array in which the resistor elements contain an electrically conductive plastic material which melts to limit the blower motor current in the event of an...
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5250958 |
Thermal head and manufacturing method thereof
In a thermal head comprising at least a pair of electrodes (3), (4), (13), (14), resistor layers (2), (12) in contact against both the electrodes (3), (4), (13), (14), basic plates (1), (11) for...
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5244601 |
Resistor composition and its use
Resistor composition to produce thick film resistors, preferably the resistor films in sensors for temperature measurement, includes glass frit and an oxide which is at least one of CaCu 3 Ru 4 O...
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5242722 |
Strain sensor
This is to introduce a strain sensor of high quality and excellent durability. This strain sensor is composed of a basic metal body, a crystallized glass layer formed over the surface of the basic...
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5243320 |
Resistive metal layers and method for making same
Electrodeposited planar resistive layers are disclosed, which may be combined with conductive layers and insulative layers to produce laminates useful in the preparation of printed circuit boards....
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5235312 |
Polysilicon resistors and methods of fabrication
A semiconductor processing method of forming a resistor device includes, a) providing a layer of conductively doped polysilicon atop a substrate to a selected thickness, the layer of polysilicon...
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5235313 |
Thin film resistor and wiring board using the same
A thin film resistor having a characteristic that an increase phenomenon of a resistance controlled at a high temperature is generated. The resistor is obtained by controlling its composition and...
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5233327 |
Active resistor trimming by differential annealing
A process of fabricating an electrical resistor and a product produced thereby in which trimming of a resistive element of a material exhibiting thermosetting properties is accomplished by in-situ...
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5221644 |
Thick film sense resistor composition and method of using the same
Disclosed is a thick film sense resistor composition containing palladium and silver in a weight ratio of about 56/44 to about 60/40 and a specific glass frit composition so that the sense resistor...
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5218335 |
Electronic circuit device having thin film resistor and method for producing the same
In an electronic circuit device, a thin film resistor is formed on a substrate and includes first regions including one kind of atom such as Cr and exhibiting an electric conductivity and a second...
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5216404 |
SiC thin-film thermistor
A thin-film thermistor element which has an electrically insulating substrate having first and second surfaces opposite to each other and also having a pair of through-holes defined therein so as...
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5210549 |
Ink jet recording head having resistor formed by oxidization
An ink jet recording head comprises a discharging opening for liquid discharge and an electricity-heat convertor. The electricity-heat convertor has a region formed by oxidation of at least part of...
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5208080 |
Lamination of semi-rigid material between glass
A method is disclosed for producing superior optically clear laminates having a sheet of semi-rigid material encapsulated in a thermoplastic interlayer between layers of rigid material such as...
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5206624 |
Intermediate product for use in the production of thick-film circuits
An intermediate product is provided and includes a substrate having at least one thick-film circuit formed thereon. An outer surface of a first portion of the thick-film circuit is coated with a...
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5204799 |
Protective arrangement for telecommunications line interface circuit
A circuit protection device designed to protect a pair of electrical circuits by fracturing at such time as an overcurrent condition has occurred in a first of the circuits, this novel device...
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5204655 |
Resistor element with a planar ceramic substrate covered with a resistive metallic film and having apertures for lead wire connection
A resistor element for determining a parameter, including a planar ceramic substrate having a bearing surface and at least one aperture formed through the thickness thereof, an electrically...
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5202665 |
Temperature sensor and process for its production
The invention relates to a temperature sensor with platinum of temperature-sensitive material, and a process for the production of such a temperature sensor. The problem of the invention is to...
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5197329 |
PTC water level sensor and control
A PTC resistive strip is mounted on a wall of a washer tub. Water in the tub carries away heat from the energized strip thereby reducing its resistance. The water level in the tub is measured by...
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5198794 |
Trimmed resistor
A trimmed resistor is provided which has no directional feature when used and is easily mounted on a printed base board. In the trimmed resistor, there are formed four external electrodes arranged...
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5192940 |
Flat resistance for blower control unit for automobile air conditioner and blower control unit using the same
A flat resistance for a blower control unit of an automobile air conditioner, and a blower control unit using the same. The flat resistance includes: a porcelain enameled metallic substrate...
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5189284 |
Resistor, process for producing the same, and thermal head using the same
A resistor comprises iridium and at least one metal selected from the group consisting of silicon, bismuth, lead, tin, aluminum, boron, titanium, zirconium, calcium and barium. A process for...
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5179366 |
End terminated high power chip resistor assembly
An end terminated high power chip resistor-printed circuit board assembly (9) suitable for use in applications requiring miniature surface mount resistors capable of high power dissipation. An end...
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5177341 |
Thick film electrically resistive tracks
In a thick film water track, irrespective of track thickness or the material of which the track is constructed, the optimum track width is found to be in the range of from 1.2 mm to 2.1 mm....
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5164699 |
Via resistors within-multi-layer, 3 dimensional structures substrates
Via resistor structures in a hybrid multilayer circuit having a plurality of insulating layers. One via resistor structure includes a plurality of resistive via fills in vias in respective adjacent...
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5159242 |
High pressure discharge lamp having an integral thick film resistor with multiple resistive elements
A high pressure discharge lamp having a thick film resistor comprising a plurality of resistive elements. A first resistive element is included in a starting circuit for the lamp and a second...
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5155340 |
Thin high temperature heater
A thin high temperature heater includes an adhesive layer of Ti disposed an insulating substrate and a resistor layer of a Ti compound disposed the adhesive layer.
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5148191 |
Ink jet head having heat generating resistor made of non-single crystalline substance containing Ir, Ta and Al and ink jet apparatus having such ink jet head
An ink jet head is provided which includes an electrothermal converting body having a heat generating registor which generates, upon energization, heat energy to be directly applied to ink on a...
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5140300 |
Superconductive magneto-resistive device comprising laminated superconductive ceramic films
A superconductive magneto-resistive device includes superconductive ceramic films having a magneto-resistive effect. In the superconductive magneto-resistive device, the superconductive ceramic...
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5140107 |
Digitizer screen and method of making
A digitizer screen and method of making. A coated conductive plastic film is perforated and is used in conjunction with a glass or other panel to provide a screen which may be used in an electronic...
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5140299 |
Article comprising a high value resistor
In an electronic circuit that normally includes a high-value resistor, the resistive function may be usefully provided by a thin dielectric layer. Electric current is transported through the layer...
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5139858 |
Cryogenic resistance thermometer comprising a granular nickel in silica film
R.F. sputtered nickel in silica films containing 64 to 70 atomic percent nickel are employed as electrical resistance elements in a resistance thermometer for measuring temperatures of 50° K and...
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5128616 |
DC voltage tester having parallel connected resistive elements in thermal contact with a thermochronic material
A DC voltage tester having a plurality of resistive elements in thermal contact with a thermochromic material wherein the resistive elements are connected in a parallel configuration.
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5122777 |
Resistor film and method for forming the same
A resistor film formed by applying onto a substrate a homogeneous mixture solution of metal organic compounds including metals selected from the element group of silicon (Si), bismuth (Bi), lead...
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5118983 |
Thermionic electron source
A high temperature low density operating element includes a porous high temperature operating element film formed into a predetermined configuration and disposed on one surface of an insulating...
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5119272 |
Circuit board and method of producing circuit board
A circuit board includes an insulative ceramic substrate, electrode portions and wiring portions formed on the ceramic substrate by selectively removing portions of a conductor layer plated on said...
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5111179 |
Chip form of surface mounted electrical resistance and its manufacturing method
The chip form electrical resistance is designed to be soldered notably on a printed circuit card or on an hybrid circuit substratum. It includes an electrically insulating substratum (1) of the...
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5102470 |
Electric resistor having a thin film conductor
The electric resistor of this invention is comprised of a Si-Ge alloy thin film containing amorphous and microcrystal phases which serve as an electric resistance, thereby keeping the resistance...
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5093647 |
Sliding electric parts
A sliding electric part includes a set of two sliding members, wherein one of the sliding members is composed of a diamond substrate with an electric conductive portion formed by ion implanation or...
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5084694 |
Detection elements and production process therefor
A detection element including a cylindrical base body, an electric resistor formed on an outer peripheral surface of the base body, and lead wires attached to ends of the base body. The lead wires...
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5081439 |
Thin film resistor and method for producing same
A planar film resistor is trimmable by a laser beam. A pair of electrodes are spaced apart on a substrate and make contact with a film of resistive material disposed therebetween. The resistive...
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5066963 |
Ink jet head having heat-generating resistor comprised of a complex compound
A substrate for an ink jet recording head comprises a support and an electrothermal transducer provided on said support and comprising a heat-generating resistor member and electrodes electrically...
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5059941 |
Electrode structure for a thick film resistor
A resistor device includes a thick-film resistor which includes a mixture of electrical conductive material and glass, and which has the electrical conductive material at a surface portion exposed;...
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5059980 |
Non-linear analog to digital converter
First terminals are equally spaced on a substantially uniformly resistive thin film at or near a first side edge of the film at progressive positions downwardly from the top of the film. Near the...
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5045870 |
Thermal ink drop on demand devices on a single chip with vertical integration of driver device
This application discloses a novel method to integrate thermal drop on demand ink jet devices and related pulse driver circuitry for chips used in thermal ink jet printers. This integrated...
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