Patents
Patents for H01C 7 - Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material (13,712)
03/1979
03/13/1979US4144418 Copper-copper oxide powder mixture
03/07/1979EP0000864A1 Process for manufacturing thick film varistors
03/06/1979US4143348 Air temperature sensor connection assembly
03/06/1979US4143177 Absolute humidity sensors and methods of manufacturing humidity sensors
03/06/1979US4142996 Method of making homogenous metal oxide varistor powders
02/1979
02/27/1979US4142170 High response temperature sensor
02/20/1979CA1048816A1 Glassy metal alloy temperature sensing elements for resistance thermometers
02/13/1979US4139833 Thin electrical films, silicon monoxide, alumina, nickel, vapor deposition, annealing, gold contactors, thermometers
01/1979
01/23/1979US4135924 Filaments of zirconium-copper glassy alloys containing transition metal elements
01/09/1979US4134095 Fast response temperature sensor
01/02/1979US4132814 Anti-dusting process for carbon resistors
01/02/1979CA1045369A1 Zinc oxide voltage-nonlinear resistor
12/1978
12/12/1978US4129848 Platinum film resistor device
12/12/1978CA1044346A1 Composition resistor with an integral thermal fuse
12/12/1978CA1044006A1 Modified copper-aluminum suppressor element
12/05/1978CA1043587A1 Electrical resistor glaze composition and resistor
12/05/1978CA1043553A1 Resistors and compositions therefor
12/05/1978CA1043552A1 Pyrochlore-based thermistors
11/1978
11/28/1978US4127511 Zinc oxide, a boron oxide
11/28/1978CA1043465A1 Air firable base metal conductors
11/21/1978US4126824 Progressively shorted tapered resistance device
11/21/1978US4126583 High temperature thermistors (NTC)
11/14/1978CA1042323A1 Process for the preparation of metallic film resistors by heat treating
10/1978
10/31/1978US4123741 Resistance element for variable resistors
10/31/1978CA1041659A1 Degaussing circuit
10/31/1978CA1041599A1 Surge absorber
10/24/1978US4122232 Air firable base metal conductors
10/24/1978CA1041170A1 Four terminal varistor
10/24/1978CA1041159A1 Thermal printing device
10/17/1978US4120827 Fuel igniter comprising a novel silicon carbide composition and process for preparing the composition
10/17/1978CA1040746A1 Thin film resistance temperature detector
10/17/1978CA1040415A1 Voltage-dependent resistor
10/03/1978US4118112 Method for reducing power dissipation in tapered resistor devices
09/1978
09/19/1978US4115750 Bimetal actuator
09/12/1978CA1038153A1 Pyrochlore-related oxides containing copper and/or silver and resistor compositions thereof
09/05/1978US4112330 Metallized glass seal resistor compositions and resistor spark plugs
09/05/1978US4112193 Electrical insulators
09/05/1978US4111852 Pre-glassing method of producing homogeneous sintered zno non-linear resistors
09/05/1978CA1037705A1 Low temperature coefficient of resistivity cermet resistors
08/1978
08/29/1978CA1037616A1 Varistors with patterned electrodes
08/15/1978USRE29731 Metal oxide voltage-variable resistor composition
08/15/1978US4107640 Current limiting element for preventing electrical overcurrent
08/15/1978US4107450 Electric furnaces
08/15/1978US4107387 Resistance material
08/15/1978CA1036346A1 Resistor composition
08/08/1978US4105892 Thin resistor film type thermal head for printing on heat-sensitive paper
08/01/1978US4104607 Zero temperature coefficient of resistance bi-film resistor
08/01/1978US4104509 Self-regulating heating element
07/1978
07/25/1978US4103275 Platinum on a carrier
07/25/1978US4103274 Hot pressing ceramic powder with plastic resin
07/18/1978US4101862 Current limiting element for preventing electrical overcurrent
07/18/1978US4101708 Resistor compositions
07/18/1978US4101454 Ceramic semiconductors
07/11/1978US4100588 Electrical overvoltage surge arrester with varistor heat transfer and sinking means
07/11/1978US4100524 Electrical transducer and method of making
07/04/1978US4098725 Low thermal expansive, electroconductive composite ceramics
06/1978
06/27/1978US4097834 Non-linear resistors
06/27/1978US4097718 Device for heat treating hair on the human head, and the like hair curling device having self-regulating PTC heater
06/20/1978US4096464 Thermistor assembly having overload protection
06/20/1978US4096098 Semiconductor ceramic composition
06/13/1978US4094061 Method of producing homogeneous sintered ZnO non-linear resistors
06/06/1978US4093968 Resistors with heat sink
05/1978
05/30/1978US4092694 Overvoltage surge arrester having laterally biased internal components
05/23/1978US4091144 Inorganic oxide glass matrix, antimony cations, discrete tin oxide particles
05/09/1978US4089032 Plug-type transient surge suppressor
05/09/1978US4088799 Method of producing an electrical resistance device
05/09/1978US4088609 Current-conducting film for electric resistance heaters
05/02/1978US4087779 Printed circuit and method of making
05/02/1978US4087777 Magnesium oxide and fused magnesium iron alumino silicate
04/1978
04/25/1978US4086559 Electric resistor based on silicon carbide having a negative temperature coefficient
04/25/1978US4086189 Resistive element having voltage non-linearity and method of making same
04/18/1978US4085398 Thin film resistance temperature detector
04/11/1978US4083765 Persulfonic acid substituted polytetrafluoroethylene tube
04/04/1978US4083029 Thin film resistors and contacts for circuitry
03/1978
03/14/1978US4079350 Layers of plastic film and copper foil
03/14/1978US4079349 Low TCR resistor
03/07/1978US4077915 Non-linear resistor
02/1978
02/21/1978US4075452 Electroresistor and method of making same
02/14/1978US4074221 Epoxy bonded silicon carbide lightning-protection valve
01/1978
01/31/1978US4071426 Method of making high resistance cermet film
01/24/1978US4070200 Printing onto dielectric substrates
01/17/1978US4069465 Cylindrical varistor and method of making the same
01/17/1978US4069061 Ceramics having nonlinear voltage characteristics
01/10/1978US4068281 Thermally responsive metal oxide varistor transient suppression circuit
01/10/1978US4068205 Ceramics, platinum
12/1977
12/27/1977US4065743 Resistor material, resistor made therefrom and method of making the same
12/27/1977US4064757 Glassy metal alloy temperature sensing elements for resistance thermometers
12/20/1977US4064475 Thick film varistor and method of making the same
12/13/1977US4063211 Method for manufacturing stable metal thin film resistors comprising sputtered alloy of tantalum and silicon and product resulting therefrom
12/13/1977US4063210 Temperature independent semiconductor resistor and method of making same
11/1977
11/29/1977US4060661 Voltage-dependent resistor
11/22/1977US4059774 Switching inverter with thermoconductive materials
11/08/1977US4057777 Termination for electrical resistor and method of making same
11/01/1977US4056823 Analog chart recorder employing thermal printing means
10/1977
10/25/1977US4055438 Barium titanate ceramic
10/11/1977US4053866 Electrical resistor with novel termination and method of making same
10/11/1977US4053864 Thermistor with leads and method of making
10/04/1977US4052691 Humidity sensor
10/04/1977US4052340 Method for producing a voltage dependent resistor and a voltage dependent resistor obtained therewith
10/04/1977US4052339 Refractories and methods of making same