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)
05/1985
05/14/1985US4517444 Thermal printhead
05/14/1985US4517156 Sensing coil, palladium-silver
05/14/1985CA1187207A1 Method of making temperature sensitive device and device made thereby
05/09/1985WO1985002058A1 Divider of electrical signals
05/07/1985US4516105 Reheating after sintering
05/07/1985CA1186806A1 Metal oxide varistor with controllable breakdown voltage and capacitance
05/07/1985CA1186760A1 Stable high voltage dc varistor
04/1985
04/30/1985US4514620 For self-regulating heaters for freeze protection
04/24/1985EP0138424A2 Electrical devices comprising conductive polymers exhibiting ptc characteristics
04/23/1985US4512917 Hexaboride resistor composition
04/17/1985EP0137255A2 Portable steam iron
04/17/1985EP0137044A1 Composition of porcelain for voltage-dependent, non-linear resistor
04/16/1985CA1185667A1 Distributed constant resistances for high microwave dissipation loads
04/09/1985US4510178 Annealing chromonium, silicon, and-or nitrogen on substrate
04/09/1985US4510112 Doping with bismuth oxide, hot pressing and reducing the zinc oxide to zinc suboxide; ocidation
04/03/1985EP0136094A2 Laser beam trimmed thick film resistor and method of trimming thick film resistor
04/03/1985EP0135534A1 Thick film resistor circuits.
04/02/1985US4509035 Metal oxide body impregnated with sulfur or phosphorus, and coppercompounds
03/1985
03/26/1985US4507701 Lighting arrester with leakage current detection
03/26/1985CA1184642A1 Infrared radiation detector
03/19/1985US4506285 Substrate made of varistor material having a plurality of electronic components mounted thereon
03/19/1985CA1184319A1 Radiation cross-linking of ptc conductive polymers
03/13/1985EP0134037A2 Hexaboride resistor composition
03/12/1985US4504817 Demagnetizing circuit using a PTC thermistor device
03/12/1985US4504411 Resistor composition for resistor-incorporated spark plugs
03/12/1985CA1183965A1 Varistors with controllable voltage versus time response
03/12/1985CA1183680A1 Method for manufacturing a semiconductor body having a positive temperature coefficient
03/06/1985EP0133751A1 Protective layer for thermal heads and other conductive and heating devices
03/05/1985US4503418 Thick film resistor
03/05/1985US4503090 Thick film resistor circuits
02/1985
02/26/1985US4502089 Lightning arrester
02/14/1985WO1985000690A1 Oxide semiconductor for thermistor
02/13/1985EP0132810A1 Borosilicate glass composition
02/12/1985US4499011 A mixture oxide of lead, rhodium and ruthenium and binders; stability
02/05/1985US4498071 High resistance film resistor
01/1985
01/29/1985US4496931 Moisture permeable electrode in a moisture sensor
01/22/1985US4495524 Part for a slide variable resistor
01/22/1985US4495482 Controlled doping with lithium
01/22/1985CA1181475A1 Fail safe surge arrester
01/17/1985WO1985000246A1 Voltage-dependent, non-linear resistor porcelain composition
01/16/1985EP0131165A1 Thermistors; and a method of their fabrication
01/08/1985US4492947 Resistor having a positive temperature coefficient
01/08/1985CA1180761A1 Humidity sensor
01/02/1985EP0129997A1 Process for the production of PTC thermistors
12/1984
12/27/1984EP0129077A1 Lightning arrester
12/25/1984US4490318 Semiconductive ceramic materials with a voltage-dependent nonlinear resistance, and process for preparation
12/25/1984US4489487 Electronic component and adhesive strip combination, and method of attachment of component to a substrate
12/18/1984US4489291 Circuit breaker provided with parallel resistor
12/04/1984US4486737 Electric resistor which has low resistance and serves particularly for protecting an electric consumer against electric overload, and method for the manufacture thereof
11/1984
11/27/1984US4485370 Thin film bar resistor
11/20/1984US4484251 Current restriction element responsive to applied voltage
11/20/1984US4484247 Nonfragmenting station arrester
11/20/1984US4484172 Humidity sensor, comprised of compound metal oxides with perovskite structure
11/20/1984US4483933 Semiconductor ceramic composition
11/14/1984EP0124948A1 Resistor paste for an electrical resistance
11/13/1984US4482882 Moisture sensor with valve metal composition electrodes
11/13/1984US4482475 Resistor composition for resistor-incorporated spark plugs
11/13/1984US4481813 Dew sensor
11/13/1984CA1177739A1 Devices comprising conductive polymers
11/06/1984US4481498 PTC Circuit protection device
11/06/1984US4480376 Thermistors, their method of production
11/06/1984CA1177528A1 Circuit protection devices
11/06/1984CA1177527A1 Circuit protection devices comprising ptc element
10/1984
10/31/1984EP0123540A2 Conductive polymers and devices containing them
10/31/1984EP0123385A1 Humidity-sensitive resistive element
10/31/1984EP0123127A1 Flexible heating element in strip form, composed of electrical conductor granules, made of a PCT material, bonded together with an insulating organic plastic, and method of making the same
10/30/1984US4479890 Thick film resistor inks
10/23/1984US4479026 Measuring resistor for a noise thermometer
10/23/1984CA1176453A1 Conductive polymer compositions having improved properties under electrical stress
10/16/1984US4477793 Zinc oxide non-linear resistor
10/10/1984EP0121289A1 NTC electrical device
10/09/1984US4476513 Surge arrester
10/09/1984US4476039 Stain-resistant ruthenium oxide-based resistors
10/09/1984CA1175954A1 Glass coated disk thermistor
10/09/1984CA1175889A1 Grading means for high voltage metal enclosed gas insulated surge arresters
10/02/1984US4475138 Circuit protection devices comprising PTC element
10/02/1984US4475091 Capacitors, varistors
10/02/1984US4474718 Method of fabricating non-linear voltage limiting device
10/02/1984CA1175511A1 Resistor device with stacked annular resistance elements
09/1984
09/26/1984EP0119863A1 Process for the preparation of voltage non-linearity type resistors
09/25/1984US4473812 Voltage-dependent nonlinear resistor
09/25/1984CA1175098A1 Circuit protection devices
09/19/1984EP0119066A2 Thermal head
09/11/1984US4470898 Polymer compositions for electrical use
09/04/1984US4469717 Platinum on dielectric
09/04/1984CA1173893A1 Surge suppressor construction
09/04/1984CA1173645A1 Low value resistor inks
09/04/1984CA1173644A1 Air-fireable thick film inks
08/1984
08/30/1984WO1984003389A1 Thick film resistor circuits
08/28/1984US4468370 Palladium and silver
08/21/1984US4467387 Combination strut insulator and lightning arrester
08/21/1984US4467310 Telephone subscriber line battery feed resistor arrangements
08/21/1984US4467309 High temperature thermistor
08/21/1984US4467009 Printed circuits, glass frits
08/21/1984US4466850 Method for fabricating a one-time electrically activated switch
08/21/1984CA1172844A1 Thick film resistor compositions
08/16/1984WO1984003171A1 Composition of porcelain for voltage-dependent, non-linear resistor
08/15/1984EP0115798A1 Stain-resistant ruthenium oxide-based resistors
08/14/1984US4465577 Method and device relating to thin-film cermets
08/08/1984EP0115149A1 Varistor and method for manufacturing the same