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6884314 Conducive, silicone-based compositions with improved initial adhesion reduced microvoiding  
The present invention relates generally to conductive, silicone-based compositions, with improved initial adhesion and reduced micro-voiding. More specifically, the present invention relates to a...
6841495 Glass and conductive paste using the same  
A glass containing no lead and comprising, calculated as oxides: 40-60 wt. % ZnO, 15-35 wt. % B 2 O 3 , 1-16 wt. % SiO 2 , 1-10 wt. % Al 2 O 3 , 2-15 wt. % MnO 2 , and at least one selected from...
6787239 Electrode material, dielectric material and plasma display panel using them  
A material usable for the electrodes and the dielectric layer plasma display panels and capable of reducing the occurrence of yellowing and a high-image-quality plasma display panel using the...
6773635 UV-sensitive material  
Materials, both glass and glass-ceramic, that exhibit UV-induced changes in light transmission and electrical conductivity behavior. The materials consist essentially, in mole %, of 20-40% SiO 2 ,...
6664004 Electrode compositions having improved cycling behavior  
An electrode composition that includes a plurality of composite particles and a plurality of electrically conductive diluent particles admixed with the composite particles. Each of the composite...
6558582 Semiconductive ceramics and supporting member made of the same for supporting magnetic disk substrate  
A semiconductive ceramic contains a compound of MgO and SiO 2 as a main component, and an iron oxide such as FeO, Fe 2 O 3 , and Fe 3 O 4 as an electric conductivity provider. According to...
6146552 Zinc oxide ceramics and method for producing the same  
Zinc oxide ceramics and a method for producing the same are provided wherein zinc oxide varistors for low and high voltages having excellent electric characteristics and high reliability upon DC...
6018287 Lateral high-resistance additive for zinc oxide varistor, zinc oxide varistor produced using the same, and process for producing the varistor  
The invention aims at providing highly reliable zinc oxide varistors through simple production steps. The varistor is produced by dispersing a powdery raw material comprising 1-40 molar % (in terms...
5976420 Chip type varistor and ceramic compositions for the same  
There is provided a chip type varistor having a small electrostatic capacity, high voltage non-linearity, and high voltage suppressing capability and surge resistance. The chip type varistor is a...
5861110 Silica having high specific surface area and a narrow pore distribution  
A method for production of high specific surface area silica gel by hydrolysis of silicon tetrahalide, wherein a solution of silicon tetrahalide in a non-reactive solvent such as alcohol is mixed...
5811033 Method of manufacturing zinc oxide sintered compact body  
By performing a debinder process before or at the time of firing, and by enhancing a programming rate in the temperature range of 650°.about.950° C., the size of particles shows less...
5807510 Electric resistance element exhibiting voltage nonlinearity characteristic and method of manufacturing the same  
A composition for electric material containing as a primary component zinc oxide. The composition further contains at least one of rare-earth elements in a range of 0.01 mol % to 3.0 mol % in terms...
5645765 Lead-free conductive paste  
A nontoxic lead-free conductive paste comprising (a) a lead-free glass frit having a crystallization temperature of 700°-870° C. and consisting essentially of, by weight %, 20-38% of SiO 2 ,...
5640136 Voltage-dependent nonlinear resistor  
The invention provides a voltage-dependent nonlinear resistor porcelain in the form of a ZnO system sintered body comprising zinc oxide as a major component and at least one of rare earth element...
5611852 Stabilized conductive pigment  
A stabilized conductive pigment based on aluminum-doped zinc oxide which, for stabilizing the electric conductivity, contains an alkaline earth metal titanate or an oxide of an element from group...
5594406 Zinc oxide varistor and process for the production thereof  
A product and process of making such product in which a varistor is formed by diffusing lead borosilicate-type glass, into a surface of a fired or sintered zinc oxide substrate, i.e., "varistor...
5536293 Base metal composition for external electrode of multilayer electronic component  
A base metal composition for forming an external electrode of a multilayer electronic component contains 70 to 85 percent by weight of Cu, 2 to 10 percent by weight of glass frit and 10 to 28...
5491118 Cadmium-free and lead-free thick film paste composition  
The invention is directed to a lead-free and cadmium-free thick film paste composition suitable for forming resistor or thermistor patterns on a substrate.
5455554 Insulating coating  
A composition for an insulating collar of a metal oxide varistor, with the composition being applied as a slurry to a green varistor in an unfired state along its periphery for enhancing the...
5336301 Conductive copper paste  
A conductive copper paste contains copper powder and a glass frit of a zinc borosilicate system as a solid component dispersed in an organic vehicle. The content of said glass frit in the solid...
5277843 Voltage non-linear resistor  
A ZnO 2 voltage non-linear resistor excellent in all characteristics of life under electrical stress, current impulse withstandability, discharge voltage ratio, change rate of discharge voltage...
5269971 Starting material for use in manufacturing a voltage non-linear resistor  
A voltage non-linear resistor element mainly including ZnO, substantially free from internal defects, exhibiting an excellent current impulse withstand capability, can be manufactured by a process...
5250229 Silver-rich conductor compositions for high thermal cycled and aged adhesion  
The invention is directed to a thermal cycle adhesion additive composition consisting essentially of an admixture of finely divided particles of oxides of bismuth, copper, lead, zinc, and...
5236632 Zinc oxide sintered body, and preparation process and use thereof  
An electroconductive zinc oxide sintered body composed of sintered particles fusion-bonded in the grain boundaries thereof; which has a sintered density of from 5 to 5.5 g/cm 3 ; and which does...
5225111 Voltage non-linear resistor and method of producing the same  
An improved voltage non-linear resistor having a superior voltage-current characteristic property, a superior switching current impulse withstand capability, a superior lightning current impulse...
5153554 Low voltage varistor array  
An article having an array of varistors, including (a) a varistor body made of varistor material and having two major opposing faces, one of the opposing faces having an array of indentations...
5143651 Zinc oxide-based composition for low and medium voltage varistors  
A composition based on zinc oxide for low and medium voltage varistors which contains additional elements in the form of oxides, where the oxides are contained in the composition in accordance with...
5096620 Lead-zinc-borosilicate glass  
Lead-zinc-borosilicate glass is provided having a boundary wetting angle with respect to ZnO of at most 40°, a processing temperature of at most 540° C., a composition, consisting essentially of,...
5062993 Process for fabricating doped zinc oxide microsphere gel  
A new composition and method of making same for a doped zinc oxide microsphere and articles made therefrom for use in an electrical surge arrestor which has increased solid content, uniform grain...
5039971 Voltage non-linear type resistors  
A voltage non-linear resistor, composed mainly of zinc oxide and contains at least bismuth oxide, antimony oxide, and silicon oxide as additives, wherein crystalline phases of bismuth oxide...
5000876 Voltage non-linear type resistors  
A voltage non-linear type sintered resistor is disclosed, which is produced by reacting, under heating, a mixture consisting essentially of zinc oxide as a main component, and an additive...
4961999 Thermistor composition  
The invention is directed to a thick film thermistor composition consisting of finely divided particles of (a) a ruthenium-based pyrochlore, and (b) a short borosilicate glass or glass mixture,...
4920328 Material for resistor body and non-linear resistor made thereof  
An average size of ZnO particles which are three dimensionally connected and serve as primary component of a non-linear resistor, is adjusted to be within a range of 5 μm to 10 μm. The non-linear...
4888056 Shop primer compositions  
Shop primer compositions having improved properties comprise (a) fillers and pigments, at least 25 wt. % of which have conductive properties; (b) zinc powder in a weight ratio to fillers and...
4865772 Copper thick film conductor composition  
A copper-containing thick film conductor composition comprising 55 to 95% by weight of an inorganic powder and 45 to 5% by weight of an organic medium, said inorganic powder comprising 100 parts by...
4811164 Monolithic capacitor-varistor  
A multilayer protective device is made by including a varistor composition (35) between a first plurality of interdigitated electrodes (30, 32) and a capacitor composition (36) between a second...
4681717 Process for the chemical preparation of high-field ZnO varistors  
Chemical preparation techniques involving co-precipitation of metals are used to provide micro-structural characteristics necessary in order to produce ZnO varistors and their precursors for high...
4608549 Hydrogen-selective sensor and manufacturing method therefor  
A hydrogen-selective gas sensor comprising a gas-sensing element including a semiconductor in a principal portion thereof, and a thin coat or layer inactive for oxidation of hydrogen formed over an...
4594209 Process for the preparation of voltage non-linearity type resistors  
A voltage non-linearity type resistor and a process for the preparation of a voltage non-linearity type resistor wherein pre-sintering is effected at a temperature of no lower than 700° C. with a...
4575440 Process for the preparation of homogeneous metal oxide varistors  
A process for making a homogeneous metal oxide varistor powder is described. The ingredients desired in a varistor which are water and acid soluble and dissolved in water and acid respectfully to...
4563544 Electrical insulator offering reduced sensitivity to pollution  
An electrical insulator offering reduced sensitivity to pollution comprises a body of a glass or porcelain dielectric material with a semiconductor outside coating. This coating mainly consists of...
4559167 Zinc oxide varistor  
A varistor of metal oxides, predominantly zinc oxide (ZnO), is provided on its lateral surface between two contact faces, with a coating consisting at least partially of an organic polymer. In...
4551268 Voltage-dependent resistor and method of making the same  
The present invention provides a voltage-dependent resistor of the bulk-type in which zinc oxide (ZnO) powder and additives are admixed to form a sintered body composition having as the main...
4549981 Voltage limiting composition and method of fabricating the same  
A voltage limiting composition, actually a nonlinear resistor, especially suitable for use in a gapless surge arrester is disclosed herein. This composition includes a predetermined amount of zinc...
4535314 Varistor includes oxides of bismuth, cobalt, manganese, antimony, nickel and trivalent aluminum  
A varistor having good voltage-current nonlinear characteristics and a long life performance. The varistor is formed of a sintered body consisting essentially of zinc oxide as a major component,...
4490014 Liquid crystal display with low capacitance zinc oxide varistor  
A highly multiplexed liquid crystal display employs nonlinear varistor elements exhibiting a particularly low capacitance value to effectively drive individual liquid crystal cells. Low varistor...
4472296 Bulk, polycrystalline switching materials for threshold and/or memory switching  
A new group of bulk polycrystalline materials which are capable of exhibiting, selectively, either memory switching or threshold switching. The body of the material, which can be molded into a...
4460497 Voltage stable nonlinear resistor containing minor amounts of aluminum and selected alkali metal additives  
A sintered nonlinear resistor body, useful in gapless lightning arresters comprises a major amount of ZnO and additional metal oxides including at least Al 2 O 3 and an amount of selected alkali...
4436650 Low voltage ceramic varistor  
The breakdown voltage of a zinc oxide varistor is lowered by increasing the grain size of the zinc oxide using Al +3 as a zinc oxide grain growth promoting agent and the varistor's resistance to...
4400683 Voltage-dependent resistor  
A voltage-dependent resistor having at least one zinc oxide (ZnO) layer adjacent to at least one metal oxide layer of bismuth oxide (Bi 2 O 3 ) and at least one of the members selected from the...
Matches 1 - 50 out of 101 1 2 3 >