Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7727425 | Method for manufacturing an ignition plug and ignition plug produced in that manner Method for manufacturing a high-energy, low-voltage ignition plug comprising a ceramic material between its electrodes: there is mixed, in a container containing a liquid, from 50 to 75% of a compound which is intended to form a co... | 06/01/2010 |
| 7591966 | Composite oxides comprising strontium, lantanium, tungsten and ionic conductors using the same Disclosed is a novel strontium-lanthanum-tungsten-containing metal composite oxide. An ionic conductor comprising the metal composite oxide and an electrochemical device comprising the ionic conductor are also disclosed. The metal composite oxide has an improved ion... | 09/22/2009 |
| 7569167 | Oxide sintered body An oxide sintered body is composed mainly of indium and containing tungsten, has a resistivity of no more than 1 kΩcm. The tungsten content in terms of the W/In atomic ratio is preferably at least 0.001 and no more than 0.17. The oxide sintered body comprise mainly... | 08/04/2009 |
| 7566411 | Composite oxides comprising strontium, lantanium, yttrium and ionic conductors using the same Disclosed is a novel strontium-lanthanum-yttrium-containing metal composite oxide. An ionic conductor comprising the metal composite oxide and an electrochemical device comprising the ionic conductor are also disclosed. The metal composite oxide has an improved ioni... | 07/28/2009 |
| 7537714 | Yttrium based phosphors comprising conducting material, process for preparing the yttrium based phosphors and display device using the yttrium based phosphors An yttrium based phosphor, a process for preparing the yttrium based phosphor, and a display device using the yttrium based phosphor, the yttrium based phosphor including a conducting material such as WO3 or SnO2, and exhibiting an enhanced lum... | 05/26/2009 |
| 7435702 | Photocatalyst and process for purifying gas effluent by photocatalytic oxidation The photocatalyst based on a composite WO3—SiC/TiO2 semiconductor and subjected to radiation whose wavelength is at least partly less than 400 nm gives1 photocatalytic oxidation of volatile organic compounds and leads to their total mineralis... | 10/14/2008 |
| 7333258 | Electrochromic material An electrochromic material having improved durability and more pleasing color characteristics is composed of a single-phase compound of formula W1−xTaxO3−x/2, x having a value in a range of from about 0.15 to about 0.5. Thin film... | 02/19/2008 |
| 7276187 | Transparent conductive thin film, process for producing the same, sintered target for producing the same, and transparent, electroconductive substrate for display panel, and organic electroluminiscence device A transparent conductive thin film which can be produced easily by sputtering or the like with a sintered target, needs no post-treatment such as etching or grinding, is low in resistance and excellent in surface smoothness, and has a high transmittance in the low-w... | 10/02/2007 |
| 7276186 | Transparent conductive thin film, process for producing the same, sintered target for producing the same, and transparent, electroconductive substrate for display panel, and organic electroluminescence device A transparent conductive thin film which can be produced easily by sputtering or the like with a sintered target, needs no post-treatment such as etching or grinding, is low in resistance and excellent in surface smoothness, and has a high transmittance in the low-w... | 10/02/2007 |
| 7261833 | Ceramic electrolyte coating and methods Aqueous coating slurries useful in depositing a dense coating of a ceramic electrolyte material (e.g., yttrium-stabilized zirconia) onto a porous substrate of a ceramic electrode material (e.g., lanthanum strontium manganite or nickel/zirconia) and processes for pre... | 08/28/2007 |
| 7258820 | Ceramic mixed protonic/electronic conducting membranes for hydrogen separation A multi-phase mixed protonic/electronic conducting material comprising a proton-conducting ceramic phase and an electron conductive ceramic phase. Under the presence of a partial pressure gradient of hydrogen across the membrane, a membrane fabricated with this mate... | 08/21/2007 |
| 7250648 | Ferroelectric rare-earth manganese-titanium oxides Ferroelectric rare-earth manganese-titanium oxides and methods of their manufacture. The ferroelectric materials can provide nonvolatile data storage in rapid access memory devices. ... | 07/31/2007 |
| 7247260 | Method for preparing a semi-conductive ceramic material, semi-conductive ceramic material and ignition plug using this ceramic material Method for preparing a semi-conductive ceramic material, wherein: in a receptacle containing a liquid, there are mixed from 30 to 90% of a conductive phase based on Z1-xMxCrO3 for 0≦×≦0.3, with Z being an element of... | 07/24/2007 |
| 7153453 | Oxide sintered body, sputtering target, transparent conductive thin film and manufacturing method therefor There is provided an amorphous transparent conductive thin film with a low resistivity, a low absolute value for the internal stress of the film, and a high transmittance in the visible light range, an oxide sintered body for manufacturing the amorphous transparent ... | 12/26/2006 |
| 7056453 | Thermistor device, thermistor device manufacturing method and temperature sensor The thermistor portion of a thermistor device consists of a mixed sintered body of aY(Cr0.5Mn0.5)O3.bAl2O3 made of the perovskite-type compound Y(Cr0.5Mn0.5)O3 and Al2... | 06/06/2006 |
| 6878304 | Reduction resistant thermistor, method of production thereof, and temperature sensor A highly accurate reduction resistant thermistor exhibiting stable resistance characteristics even under conditions where the inside of a metal case of a temperature sensor becomes a reducing atmosphere, wherein when producing the thermistor comprised of a mixed sin... | 04/12/2005 |
| 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% SiO2, 10-20% AlO1.5, 35-55% SiO2+AlO1.5... | 08/10/2004 |
| 6740260 | Tungsten-precursor composite A tungsten-precursor composite having a polymer matrix and a tungsten precursor therein. The tungsten precursor may be tungsten oxide, ammonium paratungstate, ammonium metatungstate or other precursor or combination of tungsten precursors. The polymer may be any of ... | 05/25/2004 |
| 6740261 | Wide-range type thermistor element and method of producing the same The thermistor element of the present invention is composed of a mixed sintered body aM1M2O3bY2O3 of a composition M1M2O3 (wherein M1 is Y, and M2 is at lea... | 05/25/2004 |
| 6663794 | Reducing-atmosphere-resistant thermistor element, production method thereof and temperature sensor This invention provides a reducing-atmosphere-resistant thermistor element, the resistance of which does not greatly change even when the element is exposed to a reducing atmosphere, and which has high accuracy and exhibits excellent resistance value stab... | 12/16/2003 |
| 6620342 | Narrow composition distribution polyvinylidene fluoride RECLT films, processes, articles of manufacture and compositions The disclosure relates to a reversible, electrically controllable light transmission (RECLT) film, article of manufacture composition, process and product produced by the process, comprising a conductive narrow composition distribution polyvinylidene fluo... | 09/16/2003 |
| 6436317 | Oxide bronze compositions and textured articles manufactured in accordance therewith Oxide bronze compositions and articles manufactured in accordance therewith are provided. The oxide bronze compositions have the general formula Ax BOy, in which A comprises an alkali, alkaline earth or rare earth metal and in which ... | 08/20/2002 |
| 6329065 | Wire board and method of producing the same A wiring board having an insulating substrate of aluminum oxide ceramics and a surface wiring layer formed on the surface of said insulating substrate, wherein the aluminum oxide ceramics constituting said insulating substrate contains a manganese compoun... | 12/11/2001 |
| 6306315 | Thermistor device thermistor device manufacturing method and temperature sensor The thermistor portion of a thermistor device consists of a mixed sintered body of aY(Cr0.5 Mn0.5)O3.bAl.sub.2 O3 made of the perovskite-type compound Y(Cr0.5 Mn0.5)O3 and Al2 | 10/23/2001 |
| 6294111 | Electrochromic inks Apparatus and methods for manufacturing electrochromic cells. Layers of various inks are printed on substrates by high speed printing means. The electrochromic cells comprise layers of electrode, electrolyte, and counter electrode ink materials which are ... | 09/25/2001 |
| 6261480 | Wide-range type thermistor element and method of producing the same The thermistor element of the present invention is composed of a mixed sintered body aM1 M2 O3.bY.sub.2 O3 of a composition M1 M2 O3 (wherein M1 is Y, and M2 is ... | 07/17/2001 |
| 6200501 | Electroconductive ceramic material The invention relates to the filed of producing electroconductive ceramics on the basis of lanthanum chromite and intended for high-temperature applications (about 2000K). The object of the invention is to increase the heating rate of the ceramics, which ... | 03/13/2001 |
| 6156695 | Nickel molybdotungstate hydrotreating catalysts A hydrodenitrogenation catalyst is prepared by decomposing a nickel (ammonium) molybdotungstate precursor and sulfiding, either pre-use or in situ, the decomposition product.... | 12/05/2000 |
| 6136232 | Electro-static dissipative zirconia Electro-static dissipative or ESD materials must possess sufficient conductivity to allow for the dissipation of static charges while maintaining enough insulating characteristics to prevent shorts. Described here in are ceramic ESD materials comprised of... | 10/24/2000 |
| 5994250 | Sintered ceramic bodies and ceramic working tools A sintered ceramic body which can be worked by electrical discharge machining, has high mechanical strength, and can be worked into sintered ceramic tools which have long life is disclosed. Further, sintered ceramic tools which have long life and scarcely... | 11/30/1999 |
| 5916833 | Sintered ceramic bodies and ceramic metal working tools A sintered ceramic body which can be worked by electrical discharge machining, has high mechanical strength, and can be worked into sintered ceramic tools which have long life is disclosed. Further, sintered ceramic tools which have long life and scarcely... | 06/29/1999 |
| 5874027 | Boron-carbon system superconductive substance A new boron-carbon system superconductive substance has a nominal composition expressed R3 M4-x B4-y C3-z (where R is at least one element selected from the group consisting of Y, Sc and lanthanide series elemen... | 02/23/1999 |
| 5712531 | High-pressure discharge lamp with a sintered compact containing lanthanum oxide The invention concerns high-pressure discharge lamps, whose electrodes have a sintered compact (5) containing lanthanum oxide acting as an electron emitter, and this compact is surrounded by an electrode coil (6). Sintered compact (5) contains at least 90... | 01/27/1998 |
| 5681784 | Thermal shock resistant ceramic A ceramic which is thermal shock resistant and which is a sintered, homogeneous mixture of first and second ceramic powders, including a first ceramic powder which is based on at least one tetravalent oxide selected from the group including zirconium diox... | 10/28/1997 |
| 5679611 | Ceramic article containing a core comprising tetragonal zirconia and a shell comprising zirconium nitride A ceramic article containing a core comprising zirconia and ZrB2 composite wherein zirconia is preferably doped with yttria, and a shell comprising zirconium nitride.... | 10/21/1997 |
| 5611953 | Sinter-homogenized heating products Electrical heating elements operable at high temperatures for long periods are produced by a method involving micropyretic synthesis. Compositions subjected to micropyretic synthesis comprises a powdery mass of electrically conductive and semiconductive m... | 03/18/1997 |
| 5606141 | Electrical conductor in lamps The present invention relates to a strip-like current feeder based on molybdenum-yttrium oxide, for electric lamps with a metal/glass sealing. In addition to molybdenum-yttrium oxide, the strip material contains 0.03 to 1.0% by weight cerium oxide and the... | 02/25/1997 |
| 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 element," during formation of an electrode on the surface of ... | 01/14/1997 |
| 5409519 | Contact material for vacuum valve A contacts material for a vacuum valve including an arc-proof constituent having at least one component selected from the group consisting of tantalum, niobium, tungsten and molybdenum and an auxiliary constituent having at least one component selected fr... | 04/25/1995 |
| 5403674 | Conductive material and process for preparing the same The invention provides a conductor comprising a reaction-sintered body of a conductive nitride produced from a powder of at least one metal selected from Ti, Zr, V, Nb, Ta, Cr, Ce, Co, Mn, Hf, W, Mo, Fe, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Yb, Lu, Th and Ni, ... | 04/04/1995 |
