Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8377835 | Optical glass The present invention relates to an optical glass containing, in terms of mass % on the basis of oxides, B2O3: 10 to 20%, SiO2: 0.5 to 12%, ZnO: 5 to 19%, Ta2O5: 2.5 to 17%, Li2O: 0.2 to 3%, ZrO2... | 02/19/2013 |
| 8148280 | Optical glass An optical glass of the present invention has optical constants of a refractive index (nd) within a range from 1.75 to 1.85 and an Abbe number (νd) within a range from 35 to 45, comprises SiO2 and B2O3 as essential components and on... | 04/03/2012 |
| 8034733 | Optical glass, optical element and method of manufacturing thereof An optical glass comprises, denoted as weight percentages, SiO2-2-22%, B2O3: 3-24%, ZnO:>8% and ≦30%, CaO+BaO+ZnO: 10-50%, MgO: 0-3%, La2O3+Y2O3+Gd2O3+Yb2... | 10/11/2011 |
| 7928027 | Optical glass and optical element The optical glass of the invention comprising: SiO2: 10 to 30%, B2O3: 15 to 35%, Li2O: 0 (inclusive) to 10%, Na2O: 0 (inclusive) to 5%, and K2O: 0 (inclusive) to 5% provided that Li2O+Na | 04/19/2011 |
| 7855158 | Optical glass, preform for precision press-molding, optical element, and methods for manufacturing the same Provided is an optical glass comprising, denoted as molar percentages: 10 to 20 percent SiO2, 5 to 40 percent B2O3, SiO2+B2O3=15 to... | 12/21/2010 |
| 7833920 | Optical glass The invention provides an optical glass which comprises, in terms of % by mass on the basis of oxides, 35-45% of SiO2, 12-20% of B2O3, 2-7% of Li2O, 0.1-10% of ZnO, 2-15% of Al2O3, 10-40% of BaO, 0-5%... | 11/16/2010 |
| 7795165 | Lead-free bismuth glass An object of the present invention is to provide a lead-free bismuth glass wherein decrease of the degree of accuracy of the patterning is prevented. Specifically, the present invention provides a lead-free bismuth glass characterized in that said lead-free bismuth ... | 09/14/2010 |
| 7638450 | Lead and arsenic free optical lanthanum borate glass The lead-free, fluorine-free and arsenic-free optical glass, which is useful in mapping, projection, telecommunication, optical communication engineering, and mobile drive and laser technology, has a refractive index of 1.75≦nd≦1.83, an Abbe number of... | 12/29/2009 |
| 7569505 | Method for producing an electronic component passivated by lead free glass The invention relates to a method for the production of glass-coated electric components, wherein the components are, inter alia, passivated by the application of the glass. The lead-free glass used is not affected through purification and processing steps and the e... | 08/04/2009 |
| 7560405 | Optical glass for precision press molding, preform for precision press molding, and process for the production thereof A high-refractivity high-dispersion optical glass for producing an optical element, which requires no machining, such as polishing or lapping, of an optical-function surface after precision press molding, containing B2O3, SiO2, La | 07/14/2009 |
| 7419540 | Swellable phyllosilicates A swellable layer silicate is described based on smectite or sepiolite/palygorskite for use in media containing di- or polyvalent cations that reduce swellability, characterized by a swelling volume of about 5 to 50 mL, measured by addition of 2 g layer silicate (ai... | 09/02/2008 |
| 7407902 | Bismuth glass composition, and magnetic head and plasma display panel including the same as sealing member A Bismuth glass composition including 0.5 to 14 wt % of SiO2, 3 to 15 wt % of B2O3, 4 to 22 wt % of ZnO, 55 to 90 wt % of Bi2O3 and 4 wt % or less of Al2O3, and further including 5 wt % or ... | 08/05/2008 |
| 7399720 | Glass and glass-ceramic sealant compositions A glass composition for use as a sealant or otherwise bonded to a fuel cell component, including from about 40 mol % to about 60 mol % RO; from about 2 mol % to about 10 mol % M2O3; and from about 35 mol % to about 45 mol % SiO2. R i... | 07/15/2008 |
| 7368404 | Optical glass An optical glass having a refractive index (nd) and Abbe number (νd) within a range enclosed with a border line consisting of straight lines connecting point A (nd being 1.75 and νd being 50.0), point B (nd being 1.80 and νd being 46.0), point C (nd being 1.80 an... | 05/06/2008 |
| 7351675 | Optical glass, precision press-molding preform, process for production thereof, optical element and process for the production thereof An optical glass taking account of meltability and the moldability of a preform, having optical constants including a refractive index (nd) of at least 1.57 but less than 1.67 and an Abbe's number (νd) of over 55 but not more than 65, having the property of softeni... | 04/01/2008 |
| 7341967 | Glass for press molding The present invention provides a novel glass material that allows the production of a glass product having both excellent chemical durability and high precision by a press molding method. Specifically, the present invention provides a glass for press molding, compri... | 03/11/2008 |
| 7341965 | Bismuth oxide glasses containing germanium oxide The invention relates to bismuth oxide glass, containing germanium oxide, a method for the production thereof, the use thereof and a glass fiber consisting of said inventive glass. ... | 03/11/2008 |
| 7335614 | Optical glass An optical glass having a refractive index (nd) and an Abbe number (vd) which are within an area surrounded by the straight lines which are drawn by connecting point A (nd=1.835, vd=46.5), point B (nd=1.90, v | 02/26/2008 |
| 7332453 | Ceramics, and methods of making and using the same Ceramics (including glasses and glass-ceramics) comprising nitrogen, and methods of making the same. ... | 02/19/2008 |
| 7326370 | Black conductive thick film compositions, black electrodes, and methods of forming thereof This invention is directed to black conductive compositions, black electrodes made from such compositions and methods of forming such electrodes. ... | 02/05/2008 |
| 7326666 | Glass for forming barrier ribs, and plasma display panel Glass for forming barrier ribs for e.g. a plasma display panel, which consists, as represented by mol % based on the following oxides, essentially of from 24 to 50% of SiO2, from 13 to 23% of B2O3, from 10 to 32% of ZnO, from 3 to 20... | 02/05/2008 |
| 7297646 | Ceramics comprising AlO, REO, ZrOand/or HfO, and NbOand/or TaOand methods of making the same Ceramics comprising (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) REO, or (c) at least one of ZrO2 or HfO2. Embodiments of ceramics according to the ... | 11/20/2007 |
| 7297647 | Lead- and arsenic-free optical lanthanum flint glasses The present invention relates to lead and arsenic free optical glasses, used for the application areas imaging, digital projection, photolithography, laser technology, wafer/chip technology as well as telecommunication, optical communications engineering, optics, il... | 11/20/2007 |
| 7291573 | Low melting glass, sealing composition and sealing paste A low melting glass, which contains substantially no lead and contains 70-90% of Bi2O3, 1-20% of ZnO, 2-12% of B2O3, 0.1-5% of Al2O3, 0.1-5% of CeO2, 0-5% of CuO, 0-0.2% of Fe2O | 11/06/2007 |
| 7247987 | Rear plate for plasma display panel Disclosed is a rear plate of a plasma display panel. In the rear plate, a dielectric layer or a barrier wall layer is formed by forming slurry in a tape of a green tape and then attaching the green tape to upper surfaces of electrodes and a glass substrate. Therefor... | 07/24/2007 |
| 7232779 | Optical glass, precision press molding preform and method of manufacturing the same, optical element and method of manufacturing the same Provided are optical glass exhibiting a refractive index (nd) in a range of 1.75 to 1.87, an Abbé number (νd) in a range of 80 to 45, and excellent low-temperature softening properties even when not incorporating Th2O5 as well as permitting a... | 06/19/2007 |
| 7208430 | Glass composition for covering electrodes and glass paste containing the same A glass composition for covering electrodes of the present invention contains: 0 to 15 wt % SiO2; 10 to 50 wt % B2O3; 15 to 50 wt % ZnO; 0 to 10 wt % Al2O3; 2 to 40 wt % Bi2O3; 0 to 5 wt % ... | 04/24/2007 |
| 7166549 | Antimicrobial, anti-inflammatory, wound-healing and disinfecting glass and use thereof The invention relates to an antimicrobial, anti-inflammatory and disinfecting glass, whereby the glass comprises: 30–95 wt. % SiO2,0–40 wt. % Na 2O, 0–40 wt. % K2O, 0–40 wt. % Li2O, 0–35 wt. % CaO, 0–10 wt. % M... | 01/23/2007 |
| 7161117 | Window glass for vehicles equipped with a conductor and its production process A window glass for vehicles equipped with a conductor, which comprises a glass plate, a patterned conductor layer formed on the glass plate, and a covering layer formed to cover the conductor layer, wherein the covering layer comprises a fired product obtained by fi... | 01/09/2007 |
| 7147804 | Terminal electrode compositions for multilayer ceramic capacitors The present invention relates to terminal electrode compositions for multilayer ceramic capacitors. More specifically, it relates to terminal electrode compositions for multilayer ceramic capacitors, which compositions are made of a conductive-based powder and a gla... | 12/12/2006 |
| 7144834 | Optical colored glass, its use, and an optical long-pass cutoff filter The invention concerns an optical colored glass with a composition (in percent by weight based on oxide) of SiO2 30–75; K2O 5–35; B2O3>4–17; ZnO 5–37; F 0.01–10; CdO 0.1–1, S+Se+Te 0.1–1.5 | 12/05/2006 |
| 7141522 | Ceramics comprising AlO, YO, ZrOand/or HfO, and NbOand/or TaOand methods of making the same Ceramics comprising (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2. Embodiments of cer... | 11/28/2006 |
| 7141523 | Ceramics comprising AlO, REO, ZrOand/or HfO, and NbOand/or TaOand methods of making the same Ceramics comprising (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) REO, or (c) at least one of ZrO2 or HfO2. Embodiments of ceramics according to the ... | 11/28/2006 |
| 7138349 | Optical glass An optical glass having a refractive index (nd) and an Abbe number (vd) which are within an area surrounded by the straight lines which are drawn by connecting point A (nd=1.835, vd=46.5), point B (nd=1.90, v | 11/21/2006 |
| 7138348 | Optical glass An optical glass has optical constants which are an refractive index (nd) of 1.70–1.75 and an Abbe number (vd) of 45.0–54.0; a glass transformation temperature (Tg) of 500–580° C. The glass has the following composition in mass percent of: SiO2 mor... | 11/21/2006 |
| 7138347 | Thick-film conductor paste for automotive glass A thick-film composition comprising: (a) conductive metal; (b) crystallized glass; (c) amorphous glass; and (d) organic medium. ... | 11/21/2006 |
| 7102242 | Lead-free glass tubing, especially for encapsulating diodes and diodes encapsulated with same The lead-free glass tubing of the SiO2—B2O3—R2O—BaO—ZnO—TiO2 system has a composition, in percent by weight on an oxide basis, consisting essentially of: SiO2, 34 to 52; B2O3... | 09/05/2006 |
| 7098158 | Glass for press molding, and lens A glass for press molding, containing substantially no lead, consisting substantially of, as represented by mol % based on oxides: | 08/29/2006 |
| 7091145 | Lead-free and preferably arsenic-free lanthanum heavy flint glass The lead-free and arsenic-free optical glass has a refractive index nd of 1.84≦nd≦1.96 and an Abbé number νd of 27≦νd≦36, with good chemical resistance, excellent crystallization resistance and the following com... | 08/15/2006 |
| 7087543 | Optical glass, press-molding preform and optical element An optical glass having a refractive index (nd) of 1.57 to 1.67, an Abbe's number (νd) of 55 to 65 and a glass transition temperature (Tg) of 560° C. or lower and having a low-temperature softening property and excellent climate resistance or a haze value of 3% or... | 08/08/2006 |
