Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 8088699 | BSAS powder The invention provides a powder comprising at least 95% by number of fused grains, with the following chemical composition, as a percentage by weight based on the oxides, for a total of 100%: 0≦BaO≦40.8%; 0≦S... | 01/03/2012 |
| 7867932 | Refractory glass ceramics A formation of internally nucleated glass ceramics articles that can be heated in the 1350-1450° C. range for extended periods of time without significant deformation or change in shape is disclosed. The predominant crystal phase of these glass ceramics is celsian ... | 01/11/2011 |
| 7306845 | Optical materials and optical devices Nanoscale particles, particle coatings/particle arrays and corresponding consolidated materials are described based on an ability to vary the composition involving a wide range of metal and/or metalloid elements and corresponding compositions. In particular, metallo... | 12/11/2007 |
| 7297645 | Opalescent glass-ceramic product An opalescent glass-ceramic product, especially for use as a dental material or as an additive to or component of dental material, including SiO2, Al2O3, P2O5, Na2O, K2O, CaO and Me(IV))O | 11/20/2007 |
| 7294390 | Method for improving the thermal cycled adhesion of thick-film conductors on dielectric An improved electrical printed circuit exhibiting a combination of enhanced solderability and outstanding adhesion with a dielectric substrate includes a stack of two different types of conductive films. The stack includes a first conductive film that is printed ont... | 11/13/2007 |
| 7284469 | Protection from kinetic threats using glass-ceramic material A method for protecting an object from kinetic threats using a glass-ceramic is disclosed. The energy of impact is dissipated as a localized pulverization of the glass-ceramic without extensive shattering of the glass-ceramic. Further, a specific Anorthite glass-cer... | 10/23/2007 |
| 7285507 | Ceramic composition being fired at low temperature and having high strength and method for preparing the same, and laminated electronic parts using the same A high-strength, low-temperature-sintered ceramic composition having a structure comprising a SrAl2Si2O8 Crystal and an Al2O3 crystal, the SrAl2Si2O8 crystal being composed of he... | 10/23/2007 |
| 7229939 | Multilayer ceramic substrate and method for manufacture thereof A multilayer ceramic substrate which is obtained by firing multilayers of ceramic green sheets each having a dielectric layer, made of a glass-ceramic material comprising a mixture of alumina and a glass containing at least Si and Ca, and an electrode layer made of ... | 06/12/2007 |
| 7186307 | Method for manufacturing a ceramic multilayer circuit board By increasing the quantity of resin binder of at least one of conductive paste and ceramic green sheet, adhesion between conductive film and the ceramic green sheet is improved when an intaglio filled with the conductive paste is hot pressed on the ceramic green she... | 03/06/2007 |
| 7160823 | Low dielectric constant low temperature fired ceramics Low dielectric constant dielectric ceramics for a borosilicate-based low temperature fired multi-layer substrate is disclosed which can be fired at a wide temperature range of above and below 900° C. and exhibits a low loss electrical property. By controlling the t... | 01/09/2007 |
| 7153379 | Methods of producing a ceramic matrix composite Methods are provided for producing a ceramic matrix composite by slurry infiltration. The methods involve placing a desized ceramic cloth lay-up into a non-ceramic cloth bag, sealing the bag to form a bagged ceramic preform, infiltrating the bagged ceramic preform w... | 12/26/2006 |
| 7087293 | Thick film dielectric compositions for use on aluminum nitride substrates The present invention relates to a Cd-free and Pb-free glass composition comprising, based in mol %, 1–10% MO where M is selected from Ba, Sr, Ca and mixtures thereof, 5–30% MgO, 0.3–5% CuO, 0–2.5% P2O5, 0–2.5% ZrO2, 24–4... | 08/08/2006 |
| 7004975 | Coated joint endoprosthesis Joint endoprostheses are provides which respectively have a joint part with a metallic core, wherein the metallic core is coated, in regions that roll and/or slide on another joint part during execution of the joint function, with a glass-ceramic composite mixture. ... | 02/28/2006 |
| 6984261 | Use of ceramics in dental and orthodontic applications The invention relates to uses of glasses and glass-ceramics in dental and orthodontic applications. ... | 01/10/2006 |
| 6979490 | Fiber-reinforced ceramic composite material comprising a matrix with a nanolayered microstructure A fiber-reinforced ceramic matrix composite material exhibiting increased matrix cracking strength and fracture toughness is produced by sequentially depositing a plurality of 5-500 nanometer-thick layers of a primary ceramic matrix material phase periodically separ... | 12/27/2005 |
| 6953756 | Glass ceramic sintered body and wiring board using the sintered body A glass ceramic sintered body containing gahnite and cordierite as crystal phases, having a thermal expansion coefficient at 40 to 400° C. of not larger than 5×10−6/° C., a dielectric constant of not larger than 7 and a Young's modulus of not larger ... | 10/11/2005 |
| 6946415 | Composition for insulating ceramics and insulating ceramics using the same An insulating ceramic composition includes a mixture of a ceramic powder containing MgAl2O4 and a glass powder containing 30-60% by mole of silicon oxide on the basis of SiO2 and 20-55% by mole of magnesium oxide on the basis of MgO,... | 09/20/2005 |
| 6942713 | Ceramic body based on aluminum titanate An aluminum titanate-based ceramic body having a composition a formula comprising a(Al2O3.TiO2)+b(CaO.Al2O3.2SiO2)+c(SrO.Al2O3.2SiO2)+d(BaO.Al2O3... | 09/13/2005 |
| 6924245 | Glass ceramic composition, glass ceramic sintered material and ceramic multilayer substrate A glass ceramic composition which can be fired at a low temperature and which has a high dielectric constant, a relatively small thermal expansion coefficient and a small temperature coefficient of dielectric constant is provided. The glass ceramic composition conta... | 08/02/2005 |
| 6914023 | Substrate for flat panel display and thin film electroluminecence element The object of the present invention is to provide a flat-panel-display substrate which is high in heat resistance, of which the coefficient of thermal expansion is approximated to that of a thick film dielectric layer, which is low at high temperatures in reactivity... | 07/05/2005 |
| 6878464 | Glass-ceramic composite material and multilayered circuit substrate A glass-ceramic composite material for use in forming a multilayered circuit substrate is provided which has a low dielectric constant, but exhibits a relatively high thermal expansion coefficient. Specifically, the glass-ceramic composite material comprises a glass... | 04/12/2005 |
| 6849334 | Optical materials and optical devices Nanoscale particles, particle coatings/particle arrays and corresponding consolidated materials are described based on an ability to vary the composition involving a wide range of metal and/or metalloid elements and corresponding compositions. In particular, metallo... | 02/01/2005 |
| 6770111 | Pollucite-based ceramic with low CTE A ceramic structure which is pollucite-based and has high refractoriness and high resistance to thermal shock. The inventive structure is suitable in high temperature applications such as a filtering particulates from diesel engine exhaust. ... | 08/03/2004 |
| 6699605 | Glass ceramic laminate becoming relatively high in bending strength after fired In a sintered glass ceramic product including at least three layers each of which is formed by a glass ceramic material, the layers are stacked to be substantially symmetrical in a stacking direction and integrally sintered. Among the sintered layers, eac... | 03/02/2004 |
| 6699807 | Glass ceramic material, method for producing the same and spark plug containing such a glass ceramic material A glass ceramic, for use as a resistor or a gas-tight glass ceramic solder for use in a spark plug, includes a fused seal of a starting glass fused from a starting mixture containing SiO2, Al2 O3, TiO2 and CaO, ... | 03/02/2004 |
| 6693053 | Glass and glass powder mixture and use thereof for the production of a glass ceramic A glass or glass powder is fused from a starting mixture containing approximately 38 wt % to 48 wt % SO2, 15 wt % to 19 wt % Al2 O3, 4.5 wt % to 11 wt % TiO2, 0 wt % to 1.5 wt % Na2 O, 0 wt % to 1.5 w... | 02/17/2004 |
| 6589893 | Glass-ceramics having hexacelsian as a primary crystal phase, magnetic disk substrate and magnetic disk A glass-ceramic has a hexacelsian as a primary crystal phase and is characterized by satisfying a relation of 0ࣘI(101)/I(110)ࣘ1.5 when a diffraction intensity of (101) face of hexacelsian in an X-ray diffraction is I(101) and a diffraction intens... | 07/08/2003 |
| 6579818 | Glass ceramic sintered product Disclosed is a glass ceramic sintered product which contains as crystal phases: (i) a gahnite crystal phase; (ii) a celsian crystal phase containing needle-like crystals having an aspect ratio of not smaller than 3; and (iii) at least one kind of crystal phase... | 06/17/2003 |
| 6569794 | Composition for thermal insulating material Compositions for use as thermal insulation or barriers in articles that are required to function under transient elevated temperature conditions, such as are experienced during a fire. Articles in which compositions according to the invention may be used ... | 05/27/2003 |
| 6569792 | Crystallized glass for information recording medium, crystallized glass substrate, and information recording medium using the crystallized glass substrate Enclosed are crystallized glasses suitable for a substrate for an information recording medium such as a magnetic disc, optical disc, or optomagnetic disc, a substrate for information recording medium using such a crystallized glass substrate, and an info... | 05/27/2003 |
| 6485622 | Lithium ion conductive glass-ceramics and electric cells and gas sensors using the same Lithium ion conductive glass-ceramics comprise in mol %: P2 O5 30-45% SiO2 0-15% GeO2 + TiO2 25-50% ... | 11/26/2002 |
| 6444598 | Insulator composition, insulator paste and laminated electronic part An insulator composition which can be sintered at a relatively low temperature and which exhibits a low dielectric constant and a thermal expansion coefficient suitable for forming an insulator layer of a laminated electronic part contains a crystallized ... | 09/03/2002 |
| 6352790 | Substrate containing silicon and a barrier layer which functions as a protective/thermal barrier coating A barrier layer for a silicon containing substrate comprises an alkaline earth aluminosilcate and an additive component capable of forming a reaction product with silica.... | 03/05/2002 |
| 6348424 | Low-temperature calcined glass ceramic and a manufacturing process therefor A glass having an oxide-converted composition of 35 to 65 wt % of SiO2, 5 to 35 wt % of B2 O3, 2 to 20 wt % of CaO, 5 to 25 wt % of Al2 O3 where the ratio of CaO to Al2 O3 is 1/1 ... | 02/19/2002 |
| 6294490 | Crystallized glass for information recording medium, crystallized glass substrate, and information recording medium using the crystallized glass substrate Enclosed are crystallized glasses suitable for a substrate for an information recording medium such as a magnetic disc, optical disc, or optomagnetic disc, a substrate for information recording medium using such a crystallized glass substrate, and an info... | 09/25/2001 |
| 6265090 | Electrically conductive paste ceramic multi-layered substrate Provided is an electrically conductive paste adapted to be sintered at the same time when a ceramic body is being sintered, wherein said paste has a contraction starting temperature that is higher than the contraction ending temperature of said ceramic bo... | 07/24/2001 |
| 6184164 | Bimodal silicon nitride-bas ceramic composites A composition and method of fabricating pressureless sintered 70 volume % silicon nitride-30 volume % barium aluminum silicate ceramic composites. The composites are made from 70 volume % silicon nitride, containing varying amounts and size distributions ... | 02/06/2001 |
| 6174829 | Ceramic dielectric compositions A low-fire, low-dielectric ceramic composition is disclosed. The ceramic composition comprises a mixture of finely divided particles consisting of 30-90% by volume of Ca--Ba--Al--Zn--Si glass and 70-10% by volume of oxides, which can be densified up to 95... | 01/16/2001 |
| 6133175 | Ceramic composition and method of making same Multiphase ceramic materials for use in multilayered device fabrication may be fabricated by providing novel glassy precursor materials of a preferred composition, with operable amounts of a non-glassy filler materials. The combined materials are fired at... | 10/17/2000 |
| 6124223 | ଲ-quartz-based glass-ceramics Nanocrystalline glass-ceramic materials based on ଲ-quartz solid solution Mg-rich phases formed in the system SiO2 --Al2 O3 --MgO--Li2 O--TiO2 (ZnO, BaO, ZrO2, P2 O5).... | 09/26/2000 |
