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6987358 Glass for covering electrodes, colored powder for covering electrodes and plasma display device  
A glass for covering electrodes, which consists, as represented by mass percentage based on the following oxides, essentially of from 35 to 55% of PbO, from 15 to 30% of B 2 O 3 , from 4 to 15% of...
6911160 Phosphate glass for use in the manufacture of ultra-short length lasers and amplifiers  
A high-gain phosphate glass composition, which can be used to produce ultra-short gain length lasers and optical amplifiers is described wherein the composition of the glass in addition to...
6903038 Glass with a minimal stress-optic effect  
A glass comprising in mole percent based on oxide: SiO 2 55-70 PbO 30-38 Na 2 O >0-4.5 K 2 O  0-2.5 and essentially free of TiO 2 .
6784130 PDP material controlled in moisture content  
Inorganic powder as a plasma display panel material comprises a powdery material containing glass powder. The powdery material has a moisture content adjusted to fall within a range between 0.1 and...
6583079 CRT frit capable of sealing a CRT bulb at a relatively low temperature and in a short time  
A CRT frit for use in sealing a panel and a funnel of a CRT bulb comprises non-crystallizing glass powder and refractory filler powder. The non-crystallizing glass powder consists essentially of,...
6503858 Glass composition, structure, and apparatus using the same  
Provided are a glass such as a sealing glass which contains a rare earth element and crystalline particles, a structure made by sealing with said sealing glass, a magnetic head made by bonding...
6497962 Low melting point glass for covering electrodes, and plasma display device  
A low melting point glass for covering electrodes, which contains Cu in a content as calculated as CuO within a range of from 0.1 to 0.9% by mass percentage and which contains neither Mo or Sb.
6498116 Coating and filler materials for use in localized thermal processing of glazed ceramics  
Coating and filler materials for localized thermal processing of glazed ceramics and other brittle and low thermal conductivity materials. The coating materials include oxide compositions that...
6284687 High refractive index glasses, multifocal corrective lenses containing same  
The present invention relates to glasses of high refractive index having the following composition of oxides, expressed in percentages by weight: SiO 2 29-35, B 2 O 3 0.5-5, Li 2 O 0.5-3, Na 2 ...
6255598 Terminal assembly and method of forming terminal assembly  
A primarily polycrystalline but partially amorphous electrical insulator can hermetically seal first and second spaced electrical terminals, one made from an anodized aluminum and the second made...
6046123 Glasses with a high refractive index and their use as segments of multifocal corrective lenses  
The invention concerns glasses characterized by the fact that they have a refractive index higher than 1.740; a dilatation coefficient α, between 25 and 300° C., between 65 and 70×10 -7 /°C.;...
5958807 Low dielectric loss glass ceramic compositions  
High magnesium-content magnesium aluminosilicate glasses are used to form green tape compositions that are fired stepwise, i.e., first to about 500° C. to remove organic materials, then to a...
5958810 Optical glass with varying refraction index  
Optical glasses or lenses are described having a refractive index that varies as a function of at least one coordinate, which is made from a starting material with a constant refractive index by...
5932504 Glass composition and magnetic head employing glass composition  
A glass composition contains PbO of 67 to 74 weight %, SiO 2 of 11 to 20 weight %, B 2 O 3 of 3 to 8 weight %, TeO 2 of 3 9 weight %, Na 2 O of 0 to 3 weight %, and ZrO 2 of 1 weight %...
5643840 Low temperature sealing composition with reduced SiO.sub.2 content but  
A low temperature sealing composition comprising PbO--B 2 O 3 --Bi 2 O 3 glass powder with a reduced amount of SiO 2 content but with an addition of GeO 2 so as to realize a lowered sealing...
5510300 Sealing glass compositions using ceramic composite filler  
The present invention relates to low temperature sealing glass compositions using ceramic composite filler useful for sealing alumina ceramic package, in particular, to compositions for...
5393558 Method of bonding a conductor composition including a lithium compound to an aluminum nitride substrate  
The present invention provides a method of adherently depositing a thick film composition on an aluminum nitride substrate comprising the steps of providing an aluminum nitride substrate, providing...
5346863 Low temperature sealing composition  
A low temperature sealing composition consists essentially of 45.0 to 85.0 wt. % of PbO, 1.0 to 11.0 wt. % of B 2 O 3 , 1.0 to 45.0 wt. % of Bi 2 O 3 , 0.2 to 10.0 wt. % of Fe 2 O 3 , 0 to 15.0...
5342426 Making glass sheet with defect-free surfaces and alkali metal-free soluble glasses therefor  
This invention is directed to a method for preparing glass sheet having surfaces which are essentially defect-free and equivalent in smoothness to polished glass surfaces which comprises the steps...
5302557 Automotive glass thick film conductor paste  
Thick film paste composition for applying conductive patterns to automotive window glass comprising finely divided particles of metallic silver, glass frit having transition metal oxide, contained...
5286269 Production of composite glass powder of any desired particle size from a particulate multicomponent mixture  
For the production of a composite glass powder of any particle size from a fine particle size, multi-component mixture of a low-melting glass powder, fillers, and additives, the fine particle size,...
5281561 Low temperature sealing glass composition  
A low temperature sealing glass composition suitable for sealing integrated circuit alumina packages at temperatures below 400° C. in a short time of about ten minutes. This sealing glass...
5273948 Bonding glass for assembling a magnetic head, and a magnetic head  
A bonding glass for assembling a magnetic head by bonding a magnetic core to a non-magnetic ceramic slider. The magnetic core has a gap and an Fe-Al-Si film within the gap. The bonding glass...
5260237 Overcoating inorganic composition  
An overcoating inorganic composition is applied to a ceramic substrate for forming an overcoat thereon which has improved flexural strength, matches in thermal expansion with the substrate, and is...
5256606 Moisture resistant low melting point glass for magnetic head and magnetic head  
The present invention relates to a moisture resistant low melting point glass composition for a magnetic head and a magnetic head utilizing it. Said glass composition may be composed of 28-35% PbO,...
5250475 Black glass pastes for glazing and their production  
Black glass pastes for edging glass windows in automobiles comprise ground, lead-containing modified borosilicate glass which has sulfides or polysulfide fused therein, black ground pigment and a...
5244484 Process for producing a curved glass plate partially coated with a ceramic  
A process for producing a curved glass plate, which comprises coating a crystallizable ceramic color composition to a predetermined portion of a glass plate, followed by baking at a temperature of...
5204289 Glass-based and glass-ceramic-based composites  
This invention provides a composite article comprising mullite bubbles dispersed in one of a glass matrix and a glass-ceramic matrix, and a method of making the same. The composite ceramic article...
5204292 Optical glass for a press lens  
An optical glass for a press lens composed of 25 to 41 mol % of SiO 2 , 10 to 30 mol % of B 2 O 3 , 18 to 40 mol % of PbO, 1 to 10 mol % of Na 2 O, 1 to 15 mol % of K 2 O, 2 to 20 mol % of Li 2 ...
5162826 High index ophthalmic glasses  
This invention relates to the production of glasses exhibiting a refractive index between about 1.66-1.81, a softening point between about 625°-675° C., a strain point between about 455°-490°...
5137850 Optical glass of negative anomalous partial dispersion in the blue region  
A chemically resistant glass which can be produced at relatively low melting temperatures and has anomalous negative partial dispersion P g ,F, a refractive index n d of from 1.73 to 1.83 and an...
5100452 Making glass articles with defect-free surfaces  
The present invention relates to a method for making a glass article having at least one surface which is essentially defect-free and is at least equivalent in smoothness to a polished surface. The...
5100843 Optical glass with negative anomalous partial dispersion  
A glass having a negative anomalous partial dispersion ΔP g ,F, an index of refraction of n d ≥1.67 and an Abbe number of ν d >36 has the following composition, in % by weight, 3-11 of SiO...
5089172 Thick film conductor compositions for use with an aluminum nitride substrate  
A thick film conductor composition adapted to be bonded to an aluminum nitride substrate is provided which comprises a sufficient amount of conductive metallic material to render the conductor...
5075261 Sealing material  
A sealing material for sealing electronic parts is composed of a low-melting-point glass and a filler which has its surface modified by coating with ZnO and is compatible with low melting point glass.
5073524 Radiation-shielding glasses providing safety against electrical discharge and being resistant to discoloration  
Cerium-doped radiation-shielding glasses in the system of SiO 2 -PbO-alkali metal oxides, with a high absorption coefficient for high-energy X-ray and/or gamma- and, respectively, neutron...
4997796 Glass for magnetic head  
A kind of glass for magnetic head having a property of absorption of light and a property of adhesion in the molten state is produced as follows: CuO and Cr 2 O 3 are added to the glass of PbO-B...
4996173 Optical glass  
The optical glass of the present invention comprising SiO 2 , alkali metal oxides, P 2 O 5 and Nb 2 O 5 has optical properties of 1.70 or more in refractive index nd and 30 or less in Abbe's...
4973565 Fluoroborosilicate glass and clad article  
There are disclosed fluoroborosilicate glasses that are particularly adapted to being drawn with lead silicate core glasses to produce clad glass fibers useful in forming fiber optic bundles to be...
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,...
4957883 Oxynitride glass and the fiber thereof  
An oxynitride glass, a process for preparing same and a fiber thereof, in the glass which has Si--M 1 --M 2 --O--N system and contains SiO 2 , Si 3 N 4 and M 1 O in amounts which, as mole %,...
4946622 Blue luminescing glasses  
There are described blue luminescent glasses having the following compositions (a) 0 to 90 mole % alkali metal oxide (sodium oxide, potassium oxide, lithium oxide), individually or several...
4880453 Method for making glass articles with defect-free surfaces and soluble glasses therefor  
This invention is directed to a method for making a soda lime glass article having at least one surface which is essentially defect free and having a smoothness at least equivalent to that of a...
4824809 Optical CdO and ThO.sub.2 -free glass with refractive indices of 1.73-1.78 abbe numbers of 30-34, and high devitrification stability  
A new, CdO-and ThO 2 -free optical glass with refractive indices of 1.73-1.78 and Abbe numbers of 30-34 and with particularly good devitrification stability comprises (in weight %): TBL ...
4806268 Luminescing glasses  
There are described luminescent glasses having the following compositions (a) 0 to 80 mole % alkali metal oxide (sodium oxide, potassium oxide, lithium oxide), individually or several together,...
4766346 Lamp with low-toxicity, molybdenum-compatible sealing glass  
To provide a melt glass (10) to seal capillary spaces (9) surrounding external current supply leads (8) of molybdenum passing to molybdenum foils (6) in a pinch or press seal (7) of a high...
4734389 Highly refractive optical glass with refractive indices >1.83 and Abbe numbers <25, and with very good chemical stability  
A highly refractive optical glass (n d ≥1.83) with high dispersion (v d ≤25) and very good chemical stability at relatively low density (δ≤3.5 g/cm 3 ) consists of (in weight percent) SiO...
4721690 High PbO-content glasses in the system SiO.sub.2 --PbO--M.sub.2 O with increased chemical stability  
High PbO-content glass in the optical range of flint and heavy flint glasses from the system SiO 2 --PbO--M 2 O wherein M 2 O=alkali metal oxides, said glass having a minimum PbO content of 30...
4710479 Sealing glass composition with lead calcium titanate filler  
A sealing glass composition suitable for sealing members in semiconductor devices at a temperature below about 450° C. for a short time and a comparatively low thermal expansion coefficient of...
4696909 Platinum corrosion reducing premelted oxide compositions for lead containing solder glasses  
Platinum corrosion reducing amounts of a premelted oxide mixture that is PbO and B 2 O 3 , or PbO and SiO 2 , or PbO, SiO 2 and B 2 O 3 are added to raw batch ingredients for a lead-containing...
Matches 1 - 50 out of 222 1 2 3 4 5 >