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)
05/1999
05/05/1999CN1215898A NTC thermistor
05/05/1999CN1215897A PTC thermistor with improved flash pressure resistance
05/05/1999CN1215896A Circuit protection device
05/05/1999CN1215709A Semiconductive ceramic and semiconductive ceramic element using the same
05/04/1999US5901027 Metal oxide varistors having thermal protection
05/04/1999US5900800 Surface mountable electrical device comprising a PTC element
05/04/1999US5900135 Reducing an adherence between the first carrier and the metal film by electrically conductive contacting of the electrolyte solution; immersing an electrode in the aqueous electrolyte solution; and applying a voltage between the metal film and
05/04/1999CA2159496C Ptc planar heater and method for adjusting the resistance of the same
04/1999
04/28/1999EP0911838A1 PTC thermistor with improved flash pressure resistance
04/28/1999EP0911305A1 Semiconductive ceramic and semiconductive ceramic element using the same
04/28/1999EP0910660A1 Process for producing optically active amines
04/28/1999EP0910422A1 Components for inhalation devices
04/28/1999CN1215036A Semiconductor ceramic composition and semiconductor ceramic element using same
04/27/1999US5898563 Chip composite electronic component with improved moisture resistance and method of manufacturing the same
04/27/1999US5898289 Motor start-up circuit with a triac and PTC thermistors
04/22/1999WO1999003114A3 High-voltage resistor and high-voltage supply comprising such a high-voltage resistor
04/22/1999DE19740262C1 Sintered ceramic consisting of single perovskite phase
04/21/1999EP0910232A1 Low resistivity palladium-silver compositions
04/21/1999CN2315640Y Electronic element
04/21/1999CN1214328A Barium titanate [-Base] semiconductive ceramic
04/20/1999US5896266 Overvoltage suppressor having insulating housing
04/20/1999US5896264 Device for current limitation and protection against short-circuit currents in an electric installation
04/20/1999US5896081 Resistance temperature detector (RTD) formed with a surface-mount-device (SMD) structure
04/15/1999WO1999018642A1 Surge arrester having single surge arresting block
04/15/1999WO1999018588A1 Electronic device and method of producing the same
04/15/1999WO1999018585A1 Electric assembly and device
04/15/1999CA2303942A1 Surge arrester having single surge arresting block
04/14/1999EP0908903A2 Semiconductive ceramic composition and semiconductive ceramic element using the same
04/14/1999EP0908902A2 PTC-element, protective device and electric circuit board
04/14/1999EP0908423A1 Barium titanate semiconductive ceramic
04/14/1999EP0787349B1 Ceramic electrical resistor and its use
04/14/1999CN2314451Y Lightning arresting pipe
04/14/1999CN2314450Y Thermal changing resistor for ignitor
04/14/1999CN1213975A Components for inhalation devices
04/14/1999CN1042983C Compsns. of cupric alloy
04/13/1999US5894396 Inrush current protection circuit
04/07/1999EP0906650A1 Electrical apparatus with a variable circuit protection device
04/07/1999EP0906631A1 Electrical apparatus for overcurrent protection of electrical circuits
04/07/1999EP0906246A1 Growth of nickel-cobalt-manganese oxide single crystals
04/07/1999EP0664547B1 Metallic film resistor having fusing function and method for its manufacture
04/07/1999CN2313314Y Thunder-proof device having balenced converting function
04/06/1999US5892413 Multi-tap distribution apparatus
03/1999
03/31/1999EP0905839A1 Pluggable surge arrester
03/30/1999US5889460 Electric resistance temperature sensor
03/30/1999US5889459 Metal oxide film resistor
03/30/1999US5889453 Relay with overload protection
03/30/1999US5888429 Electrical resistance temperature adjustment structure;composite og graphite and nonconductor binder
03/25/1999WO1999014814A1 Battery pack and ptc element incorporated in the battery pack
03/24/1999EP0902952A1 Method of forming an electrode on a substrate
03/24/1999CN2311839Y Metal oxidate linear non-sensing resistor
03/24/1999CN2311838Y Source lightning device
03/24/1999CN1212072A Surface mountable electrical device comprising PTC element
03/23/1999US5886324 Electrode attachment for high power current limiting polymer devices
03/23/1999CA2216358A1 Automatic switching-off structure for protecting electronic device from burning
03/18/1999WO1999013479A1 Method of producing semiconductor ceramic having positive temperature coefficient
03/18/1999WO1999012863A1 Barium titanate-base semiconductor ceramic
03/17/1999CN1211048A Method for producing holed multiple layer electrode of voltage-dependent resistor
03/17/1999CN1211046A Cobalt ruthenate thermistors
03/16/1999US5883563 Thermo-electric material having mean crystal grain diameter nor greater than 50 microns and mean aspect ratio between 1 and 3 for large figure of merit and thermo-electric element using the same
03/16/1999US5882730 Method for the preparation of a double-coated body of boron nitride
03/16/1999US5881451 Sensing the temperature of a printhead in an ink jet printer
03/16/1999CA2028043C Chip form of surface mounted electrical resistance and its manufacturing method
03/10/1999EP0901134A2 Cobalt ruthenate thermistors
03/10/1999EP0901133A2 Multilayer conductive polymer positive temperature coefficient device
03/10/1999CN1210615A PTC conductive polymer devices
03/10/1999CN1042464C Aluminum-nickel base containing conductor and making method thereof
03/09/1999US5880919 Gas tube surge protector with interacting varistors
03/09/1999US5880668 Electrical devices having improved PTC polymeric compositions
03/09/1999US5880439 Electric cigarette lighter with composite heater of an insulator or semiconductor, silicon nitride, and an electically conductive material, molybdenum silicon (mosi2); low creep rate, excellent oxidation, corrosion resistance
03/09/1999US5879750 Method for manufacturing thermistor materials and thermistors
03/04/1999WO1999010898A1 Current limiting device and method of manufacturing therefor
03/04/1999DE19835443A1 Integrated thermistor arrangement
03/03/1999EP0899550A1 Circuit arrangement with an SMD-component, especially a temperature sensor, and method of making a temperature sensor
03/03/1999CN2309604Y Line arrester
03/02/1999US5877672 Resistor and resistor manufacturing method
03/02/1999US5877467 Circuit breaker current limiting arc runner
02/1999
02/25/1999WO1999009564A1 Varistors based on nanocrystalline powders produced by mechanical grinding
02/23/1999US5875090 Lightning arrestor with a thermoplastic envelope having an embossed outside surface
02/23/1999US5874885 Circuit protection device
02/18/1999WO1999008353A1 Surge arrester having disconnector housed by end cap
02/18/1999WO1999008292A1 Lightning arrestor
02/18/1999CA2296421A1 Surge arrester having disconnector housed by end cap
02/16/1999US5871672 Polypyrroles, polyanilines or polythiophenes with silver salts and ionic conducting exchange polymers
02/13/1999CA2211813A1 Nanocrystalline-based varistors produced by intense mechanical milling
02/11/1999WO1999007053A1 End terminals for modular electrical assemblies with pressure relief
02/11/1999WO1999006496A2 Adhesive composition for electrical ptc heating device
02/11/1999WO1998049695A3 Electric coupling device, electric circuit and method in connection therewith
02/10/1999EP0896344A2 Current limiting device with electrically conductive composite and method of manufacturing the electrically conductive composite
02/10/1999CN2307341Y Arrester for line overvoltage protection resistor
02/10/1999CN2307340Y Arrester with organic shell
02/10/1999CN1207564A Thick film silver termination composition
02/09/1999US5870273 Resistor and capacitor sections stacked and integrated therewith, varistor layer contains zinc oxide and atleast one lanthanide oxide and dielectric contains titanium oxide or lanthanum titinate to improve adhesion
02/09/1999US5867895 Method of mounting an electrical component with surface-mountable terminals
02/04/1999WO1999005689A1 Electrical device comprising a conductive polymer
02/04/1999DE19806269A1 Apparatus for heating tablets or wicks for evaporation of active substances
02/04/1999DE19729184A1 Electrical varistor component
02/04/1999DE19728961A1 Überspannungsableiter für Hoch- oder Mittelspannung Surge arresters for high or medium voltage
02/03/1999EP0895274A1 Illuminator and display utilizing the same
02/03/1999EP0895252A1 Thick film silver termination composition
02/02/1999US5867083 Protective device for surge current protection of associated equipment in communications systems