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)
08/1984
08/08/1984EP0115050A1 Varistor
08/07/1984US4464646 Controlled temperature coefficient thin-film circuit element
08/07/1984US4464583 Apparatus for bonding and protecting electrical cable shields
08/07/1984US4464421 Thick film resistors-hybrid integrated circuits
07/1984
07/31/1984US4463405 Fail safe surge arrester
07/31/1984US4463404 Surge voltage arrester with shielding bodies enclosing a column of arrester elements
07/31/1984US4463337 Temperature measuring sensors and methods for adjusting same
07/31/1984US4463268 Varistors with controllable voltage versus time response and method for using the same to provide a rectangular voltage pulse
07/31/1984US4462930 Humidity sensor
07/25/1984EP0113950A2 Method of making a resistance heater
07/24/1984US4462020 Winding wire around ceramic cement coated graphite mandrel
07/17/1984US4460624 Process for the manufacture of thick layer varistors on a hybrid circuit substrate
07/17/1984US4460623 Method of varistor capacitance reduction by boron diffusion
07/17/1984US4460497 Voltage stable nonlinear resistor containing minor amounts of aluminum and selected alkali metal additives
07/17/1984US4460494 Chromium, silicon, silicon monooxide alloy
07/10/1984US4459632 Voltage-limiting circuit
06/1984
06/26/1984US4456942 Gapless elbow arrester
06/26/1984US4456894 Distributed-constant resistance for use as a high dissipation load at hyperfrequencies
06/26/1984US4455744 Method of making a precision resistor with improved temperature characteristics
06/20/1984EP0111361A1 Symmetric temperature sensor
06/13/1984EP0110387A2 Humidity-sensitive element and process for producing the same
06/12/1984US4454495 Layered ultra-thin coherent structures used as electrical resistors having low temperature coefficient of resistivity
06/05/1984US4452844 Low value resistor inks
06/05/1984US4452729 Gapless lightning arresters
06/05/1984US4452728 Voltage stable nonlinear resistor containing minor amounts of aluminum, boron and selected alkali metal additives
06/05/1984US4452726 Mixture of oxides, sintering aid and powdered glass
06/05/1984CA1168433A1 Ptc conductive polymers and devices comprising them
05/1984
05/29/1984US4451835 Thermal recording device
05/29/1984US4451815 Zinc oxide varistor having reduced edge current density
05/29/1984CA1168038A1 Conductor compositions
05/24/1984WO1984002048A1 Self-limiting heater and resistance material
05/22/1984US4450426 Nonlinear resistor and process for producing the same
05/22/1984CA1167918A1 Electrical equipment protective apparatus with energy balancing among parallel varistors
05/22/1984CA1167908A1 High powered over-voltage protection
05/15/1984US4448806 Screen printing noble metal pattern over base metal substrate
05/15/1984CA1167537A1 Nonlinear resistor and process for producing the same
05/15/1984CA1167249A1 Indium oxide resistor inks
05/08/1984US4447352 Resistor composed of zinc iron oxide and silicon dioxide or manganese dioxide
05/02/1984EP0107511A1 Electroconductive ceramics
05/01/1984US4446295 Thermistor using organophosphazene polymer
05/01/1984US4446058 Resistor composition for resistor-incorporated spark plugs
05/01/1984CA1166437A1 Resistive element composition
04/1984
04/24/1984US4445026 Polyethylene and ethylene-acrylic acid copolymer
04/24/1984US4444708 Flexible production of heating elements
04/24/1984US4444351 Method of soldering metal oxide varistors
04/24/1984CA1166336A1 Functional electric devices
04/24/1984CA1165996A1 Conductive polymer compositions and devices
04/17/1984US4443782 Method for regulating the value of a thick film resistor and a corresponding resistor
04/03/1984US4441094 Solderable largely base metal electrodes for metal oxide varistors
04/03/1984CA1165010A1 Thick film printed circuit
03/1984
03/28/1984EP0103748A2 Combined circuit with varistor
03/27/1984US4439807 Secondary arrester
03/27/1984US4439753 Thick film printed circuit
03/21/1984EP0103454A1 Lightning arrester insulator
03/21/1984EP0103020A1 Voltage sensitive current limiting element
03/20/1984US4438214 Based on strontium calcium titanate
03/13/1984US4436829 Tingsten or molybdenum oxide in base of lead, boron, silicon and ruthenium oxides
03/13/1984US4436650 Low voltage ceramic varistor
03/07/1984EP0101843A2 Method of producing ceramic cold conductors with electric values of close tolerances
03/07/1984EP0101824A2 Semiconductive ceramic materials with a voltage-dependent nonlinear resistance
02/1984
02/29/1984EP0101632A1 Resistor
02/28/1984US4434416 Thermistors, and a method of their fabrication
02/28/1984CA1162978A1 Heat sink thermal transfer system for zinc oxide varistors
02/21/1984US4433319 Thin film of tantalum oxide with two electrodes
02/14/1984US4431983 Ceramic positive temperature coefficient resistor slug containing glass-bonded aluminum electrode with silver patches
02/07/1984US4430255 Titanium dioxide, contactors, capacitors, group 2a and 5b elements
01/1984
01/31/1984US4428909 Environmental condition sensor
01/25/1984EP0098993A1 Low voltage ceramic varistor
01/18/1984EP0098598A1 Lightning arrester with leakage current detection
01/17/1984US4426633 Devices containing PTC conductive polymer compositions
01/17/1984US4426546 Functional layer and pair of copper, or copper alloy, electrodes
01/17/1984US4426339 Method of making electrical devices comprising conductive polymer compositions
01/11/1984EP0097923A1 Metal oxide varistor
01/10/1984US4425556 Ceramic cold conductor and method of producing the same
01/03/1984US4424547 Surge suppressor construction
01/03/1984US4424507 Thin film thermistor
01/03/1984US4424461 Semiconductor integrated circuit providing temperature compensation
01/03/1984US4424251 Thick-film multi-layer wiring board
12/1983
12/27/1983US4423404 Lead-containing glass frit dielectric coating
12/20/1983US4422122 Surge absorber
12/20/1983US4421582 Self-heating article with deformable electrodes
12/13/1983US4420737 Potentially non-linear resistor and process for producing the same
12/13/1983US4420338 Glass, resistors, alkaline metal borates
12/13/1983CA1158456A1 Current inrush reduction in ptc devices
12/07/1983EP0095775A1 Compositions for conductive resistor phases and methods for their preparation including a method for doping tin oxide
12/07/1983EP0095720A2 Electrically conductive sintered ceramics and ceramic heaters
11/1983
11/22/1983US4417227 Doped alkaline earth titanate with thin film of lead germanate
11/22/1983CA1157298A1 Resistor composition and method of manufacture thereof
11/15/1983US4415486 Resistive paste for a resistor body
11/15/1983CA1157166A1 Composite thermistor component
11/15/1983CA1157081A1 Surge arrester
11/09/1983EP0093125A1 Thin or thick layer technic voltage divider.
11/08/1983US4414274 Thin film electrical resistors and process of producing the same
11/02/1983EP0092737A1 Lightning arrester
11/01/1983USRE31437 Resistance material
11/01/1983US4413301 Circuit protection devices comprising PTC element
10/1983
10/26/1983EP0092137A1 Distributed resistances for high-power loads in the microwave range
10/25/1983CA1155910A1 Flexible connector for high voltage arrester
10/18/1983US4410640 Process for producing a gel-like composition of a high polymer of acetylene, and process for molding said composition
10/18/1983US4409728 Method of making a stable high voltage DC varistor