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)
04/1982
04/13/1982US4324702 Oxide thermistor compositions
04/07/1982EP0048871A1 Method of producing ceramic material for zinc oxide varistors
04/06/1982US4323875 Method of making temperature sensitive device and device made thereby
04/06/1982US4323484 Comprising silicides and aluminum
04/01/1982WO1982001066A1 Infrared radiation detector
03/1982
03/30/1982US4322710 Electrical resistors
03/30/1982US4322477 Electrical resistor material, resistor made therefrom and method of making the same
03/24/1982EP0048063A1 Screen-printable ink for the making of resistors, and electrical circuit so made
03/23/1982US4321651 Enclosed-type zinc-oxide surge arrester
03/23/1982US4321577 Integral humidity sensor/heater configurations
03/16/1982US4320379 Voltage non-linear resistor
03/16/1982US4320165 Low-temperature coefficient of resistanct
03/09/1982US4319217 Printed circuit
03/09/1982US4319215 Non-linear resistor and process for producing same
03/09/1982US4318995 Method of preparing lightly doped ceramic materials
03/09/1982US4318881 Method for annealing PTC compositions
03/02/1982US4318073 Temperature sensor
03/02/1982US4318072 Precision resistor with improved temperature characteristics
03/02/1982CA1119084A1 Catalytic material impregnated, porous, variably resistive exhaust gas sensor and method of impregnation
03/02/1982CA1119014A1 High temperature resistance thermometers
02/1982
02/23/1982US4317155 Surge absorber
02/23/1982US4317101 Stable high voltage DC varistor
02/23/1982US4317027 Circuit protection devices
02/23/1982CA1118835A1 Corona free arrester
02/17/1982EP0046053A2 A resistive element composition
02/17/1982EP0045891A2 High powered over-voltage protection
02/17/1982EP0045753A1 Lampholder
02/16/1982US4316171 Oxidation resistant solders
02/10/1982EP0045630A2 Devices comprising conductive polymers and method of making them
02/09/1982US4315237 PTC Devices comprising oxygen barrier layers
02/09/1982CA1117789A1 Temperature compensated resistive exhaust gas sensor construction
02/03/1982EP0044981A2 Semiconductive ceramic compositions with a nonlinear volt-ampere characteristic, and process for preparing coherent bodies of such compositions
02/02/1982US4314231 Conductive polymer electrical devices
02/02/1982US4314230 Flame spraying
02/02/1982US4314145 Electrical devices containing PTC elements
01/1982
01/27/1982EP0044802A1 Resistor device comprising stacked annular resistor elements with the same axis
01/26/1982US4313101 Electrically impedant articles
01/26/1982US4312770 Thick film resistor paste and resistors therefrom
01/26/1982CA1117223A1 Thick film varistor and method of producing same
01/20/1982EP0043914A2 Delay switching device
01/19/1982US4311729 Method for manufacturing a ceramic electronic component by electroless metal plating
01/19/1982CA1116691A1 Lightning arrester device
01/13/1982EP0043400A2 Method of fabricating resistance temperature detector
01/12/1982US4310747 Method and apparatus utilizing a porous vitreous carbon body particularly for fluid heating
01/12/1982CA1116310A1 Electric heating device comprising a resistance body of p.t.c. material
01/12/1982CA1116305A1 Television cathode ray tube having getter flash tolerant internal resistive element
01/06/1982EP0043001A1 Humidity sensor and method of manufacturing it
12/1981
12/30/1981EP0042527A2 Two-part housing for a ceramic PTC resistor
12/29/1981US4308566 Lightning arrester device for power transmission line
12/29/1981CA1115045A1 Ptc compositions
12/24/1981WO1981003714A1 Method for regulating the value of a thick layer resistor,and corresponding resistor
12/22/1981CA1114588A1 Method of trimming thermistor or other electrical components and the contacts thereof
12/15/1981US4306267 Arrester
12/15/1981US4306217 Flat electrical components
12/15/1981US4306214 Non-linear resistance element, method for preparing same and noise suppressor therewith
12/15/1981CA1114467A1 Carbon film resistor with a coating of silicon nitride
12/09/1981EP0041470A2 Resistor for high-voltage equipment
12/09/1981EP0041379A2 Composite function element and process for producing same
12/08/1981US4304987 Electrical devices comprising conductive polymer compositions
12/08/1981CA1114014A1 Combination circuit breaker-lightning arrestor
12/08/1981CA1113884A1 Thin film thermal print head
12/02/1981EP0040881A2 Voltage-dependent resistor and method of manufacturing it
12/01/1981US4303742 Resistance material
11/1981
11/25/1981EP0040537A2 PTC conductive polymer compositions and devices comprising them and a method of making them
11/25/1981EP0040470A2 Aqueous developable photosensitive composition and printing plate
11/25/1981EP0040391A2 Ceramic PTC resistor material
11/24/1981US4302744 Resistor
11/24/1981US4302736 Electrical composite part
11/24/1981US4302362 Also comprising glass binder and refractory fillers
11/24/1981CA1113149A1 Lightning arrester device
11/24/1981CA1113148A1 Abnormal voltage-protection device
11/18/1981EP0040043A2 Voltage-dependent resistor
11/17/1981US4301439 Film type resistor and method of producing same
11/17/1981US4301042 Bismuth-strontium-rhodate
11/12/1981WO1981003238A1 Resistant heat generating element and method of manufacturing same
11/10/1981US4299887 Temperature sensitive electrical element, and method and material for making the same
11/10/1981US4299026 Method of assembling a motor starting relay
11/03/1981US4298900 Overvoltage protective device
11/03/1981US4298505 Resistor composition and method of manufacture thereof
11/03/1981CA1111928A1 Dew-sensing hygroscopic element
10/1981
10/28/1981EP0038718A1 Conductive polymer compositions containing fillers
10/28/1981EP0038717A2 Electrical devices containing PTC elements
10/28/1981EP0038716A1 A PTC circuit protection device
10/28/1981EP0038715A1 Circuit protection devices
10/28/1981EP0038714A2 PTC conductive polymer compositions containing fillers
10/28/1981EP0038713A2 Conductive polymer compositions containing fillers
10/27/1981US4297670 Metal foil resistor
10/27/1981US4297250 Method of producing homogeneous ZnO non-linear powder compositions
10/27/1981CA1111471A1 Detachable electronic temperature control probe for electrically heated utensils
10/21/1981EP0038078A1 Gas sensor
10/21/1981EP0037859A1 Sintered cold-conductor material and process for its production
10/20/1981US4296309 Thermal head
10/20/1981US4296002 By pressing metal oxide and fluoride powder into blocks, stacking and sintering
10/20/1981CA1111093A1 Explosion prevention in a positive temperature coefficient resistor heater
10/14/1981EP0037577A1 Nonlinear resistor and process for producing the same
10/13/1981CA1110779A1 Fast response temperature sensor
10/07/1981EP0037364A1 Surge arrester with a column of surge elements and screening bodies
10/07/1981EP0037363A1 Over voltage arrester
10/06/1981US4293839 Ruthenium oxide, glass, gold electrodes
10/06/1981US4293514 Method of producing honeycomb structural bodies consisting of barium titanate series ceramics having a positive temperature coefficient of electric resistance