Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 7994082 | Preforms for precision press molding, optical elements, and methods of manufacturing the same Preforms for precision press molding made of optical glass, optical elements, and methods of manufacturing the same are provided. The preforms are suited to precision press molding having a broad range of dispersion characteristics, a low glass transition temperatur... | 08/09/2011 |
| 7892998 | Optical glass and optical element An optical glass includes, based on a total weight of the optical glass: 15 to 40 weight percent of P2O5; 0 to 10 weight percent of Li2O; 0 to 20 weight percent of Na2O; 0 to 20 weight percent of K2O; more than ... | 02/22/2011 |
| 7741236 | Water-soluble glass composition A zinc and bismuth containing, water-soluble glass composition comprising from 10 to 75 mole % P2O5, 5-50 mole % alkali metal oxide, up to 40 mole % ZnO and up to 40 mole % Bi2O3. ... | 06/22/2010 |
| 7553785 | Lead-free and arsenic-free niobium phosphate optical glass The lead-free, arsenic-free, preferably gadolinium-free and fluorine-free, optical glass has a refractive index of 1.86≦nd≦1.95, an Abbe number of 19≦vd≦24, a transformation temperature of ≦595° C., preferably ≦550° C., good cryst... | 06/30/2009 |
| 7531474 | Optical glass, shaped glass material for press-molding, optical element and process for producing optical element Disclosed is an optical glass having high-refractivity and high-dispersion properties and having little coloring, said glass containing P2O5, Nb2O5 and TiO2 as glass components, containing Sb2O3 ... | 05/12/2009 |
| 7482293 | Optical glass suitable for mold forming at low temperature An optical glass suitable for mold forming at a low temperature including, in percent by weight, 9-25 percent of P2O5, 1-20 percent of GeO2, 12-28 percent of Nb2O5, 1-7 percent of TiO2, 0-55 percent o... | 01/27/2009 |
| 7435695 | Lead-free phosphate glasses Disclosed are zinc niobium phosphate glasses consisting essentially, expressed in terms of mole percent on the oxide basis of, 40-65% P2O5, 25-37% ZnO, 0.1-15% Nb2O5, 0-6% Al2O3, 0-5% Bi2O3, 0-3% Na2O and 0-5% B2O3, said glass exhibiting glass transition temperature... | 10/14/2008 |
| 7396786 | Glass and glass substrate having high dielectric constant A glass containing 5 to 25 mass % of P2O5, 0 to 15 mass % of B2O3, 0 to 5 mass % of SiO2+GeO2, 21 to 50 mass % of BaO+SrO, 0 to 3 mass % of Li2O+Na2O+K2O, and 35 to 65... | 07/08/2008 |
| 7396787 | Optical glass and process for making precise-pressed optical elements therefrom as well as said optical elements The lead-free, preferably lithium-free, optical glass is useful in imaging, projection, telecommunications, optical communication and/or laser technology, particularly for making precise-pressed optical elements. It has a refractive index nd of 1.50 to 1.... | 07/08/2008 |
| 7371703 | Optical glass suffering little change in refractive index by radiation of light An optical glass wherein an amount of change in refractive index (Δn: difference in refractive index between a state before radiation and a state after radiation) caused by radiation of laser beam at wavelength of 351 nm having average output power of 0.43 W, pulse... | 05/13/2008 |
| 7361632 | Water soluble glass as corrosion protector in dishwashing machines A zinc-containing, water-soluble glass composition comprising from 41 to 54 mole % of P2O5, 10 to 30 mole % of alkali oxides, up to 5 mole % of SO3 and up to 25 mole % of ZnO. ... | 04/22/2008 |
| 7312169 | Optical glass for precision molding The present invention provides a high refractive index, high dispersion optical glass for precision molding, being free from harmful materials causing environmental problems, such as lead oxide, etc., and having a low yield temperature, a refractive index (nd) of at... | 12/25/2007 |
| 7309670 | Optical glass; press-molding preform and method of manufacturing same; and optical element and method of manufacturing same The present invention relates to optical glass having a high refractive index, high dispersion, and a low glass transition temperature; a preform comprised of the optical glass for precision press-molding and a method of manufacturing the same; and an optical elemen... | 12/18/2007 |
| 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 |
| 7244480 | Glass panel A glass panel comprising: a pair of glass sheets (1), (2) disposed in opposition to each other via a gap (V) therebetween, peripheral edges of the two glass sheets (1), (2) being bonded with low melting glass (4) for sealing the ga... | 07/17/2007 |
| 7245066 | Flat panel display spacer, method of manufacturing flat panel display spacer, and flat panel display A flat panel display spacer has a sintered body containing A12O3, TiC, MgO, and TiO2, whereas the sintered body includes 35 to 55 wt % of MgO with respect to the total weight of A12O3, TiC, MgO, and TiO2 | 07/17/2007 |
| 7157391 | Optical glass, preform for press molding and optical element An optical glass being free of lead and fluorine, having a low glass transition temperature permitting press-molding with a mold formed of stainless steel and having high climate resistance includes an optical glass comprising, by mol %, 25 to 44% of P2O | 01/02/2007 |
| 7141525 | Optical glass for precision molding The present invention provides a high refractive index, high dispersion optical glass for precision molding, being free from harmful materials causing environmental problems, such as lead oxide, etc., and having a low yield temperature (At), i.e. at most 580° C., a... | 11/28/2006 |
| 7115536 | Rare earth containing P2O5-WO3-Na2O glass for laser applications A rare earth containing glass nominally based on the ternary P2O5—WO3—Na2O-Ln2O3 compositional space, with WO3>30-65 mole %, Na2O 15-35 mole %, P2O5 5-6... | 10/03/2006 |
| 7060640 | Optical glass An optical glass comprises, in mass percent, 15–35% of P2O5, 40–60% of Nb2O5, 0.5% to less than 15% of Na2O and 3% to less than 25% of BaO, has a ratio in mass % of (BaO+Nb2O5)/{(TiO | 06/13/2006 |
| 7033966 | Optical glass and lens An optical glass which contains at least 20 mol % of TeO2 and has an internal transmittance of at least 80% in a thickness of 2 mm to a light having a wavelength of 405 nm and a refractive index of at least 1.85 to the same light, and which contains no al... | 04/25/2006 |
| 7018566 | Compounds derived from LMoOand their use as ionic conductors The invention concerns novel compounds derived from La2Mo2O9 and their use as ion conductors. The compounds of the invention have formula (1): A2−xA′xB2−yB′yO9... | 03/28/2006 |
| 7005396 | Enamel composition The present invention provides a composition for use in forming an enamel cover coat from which baked-on foods can be removed without the need for pyrolysis or highly alkaline cleaners. The enamel cover coat preferably exhibits no chipping or other surface defects s... | 02/28/2006 |
| 7001858 | Glass fiber and thermoplastic resin composition Glass fiber which substantially has the following composition as represented by mol percentage and has a glass transition temperature higher than 300° C. and lower than 400° C.: Li2O+Na2O+K2O: 5 t... | 02/21/2006 |
| 6995101 | Optical glass and optical product using the same An optical glass having a high refractive index and high dispersion characteristics suitable for application to precision press molding to precisely mold final products without requiring grinding or polishing. An optical glass can be prepared exhibiting a refractive... | 02/07/2006 |
| 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 |
| 6878765 | Method for producing a component and the use of said component A method for producing a component from a glass/polymer mixture where, a component is formed from a mixture of a thermoplastic with a processing temperature T1 and first glass particles with saturated surface bonds and a glass temperature T2 | 04/12/2005 |
| 6875714 | Optical glass and optical element made of the optical glass An optical glass consists essentially, expressed in term of weight percent, of: P2O5: 20.0 to 30.0%, B2O3: 0.5 to 10.0%, Nb2O5: 5.0 to 50.0%, WO3: 15.0 to 27.0%, Bi2O3... | 04/05/2005 |
| 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 |
| 6841493 | High K glass and tape composition for use at high frequency The present invention is directed to a glass composition comprising, based on mole %, 15-35% MO where M is selected from BaO, CaO, MgO, PbO, SrO and mixtures thereof, 30-60% TiO2, 10-30% B2O3, 1-7% P2O5, 0-3% Li... | 01/11/2005 |
| 6767854 | Glassy-crystalline material with low solubility and process of preparing the same The invention refers to a material which is chemically long-term stable in a neutral or slightly acid environment and which can be used both as bioactive bone replacement material, e.g. in the form of a coating applied onto metallic prosthesis sticks by thermal spra... | 07/27/2004 |
| 6743743 | Optical glass Optical glasses and optical articles comprised of the optical glass are disclosed. One of which comprises, by means of weight percentages, more than 32 percent and not more than 45 percent P2O5, more than 0.5 percent and not more than 6 percent... | 06/01/2004 |
| 6656859 | Tellurite glasses and optical components A family of tellurite glasses and optical components for telecommunication systems, the glasses consisting essentially of, as calculated in cation percent, 65-97% TeO2, and at least one additional oxide of an element having a valence greater th... | 12/02/2003 |
| 6566289 | White enamel for aluminized or galvanized steel The present invention provides a composition for use in forming a white porcelain enamel coating on aluminized or galvanized steel. The composition according to the present invention includes a solids portion including a glass component and a white pigmen... | 05/20/2003 |
| 6528442 | Optical transparent film and sputtering target for forming optical transparent film To provide an optically transparent film containing 0.01 to 20% by weight glass forming oxide consisting of Nb2 O5, V2 O5, B2 O3, SiO2, and P2 O6 ; 0.01 to 20% b... | 03/04/2003 |
| 6511931 | Easy-to-clean matte acid resistant ground coat The present invention provides a ground coat composition for use in forming an enamel layer on sheet steel that exhibits good spot acid resistance, a satin finish, good bond, and is easy-to-clean. The composition according to the invention includes a glas... | 01/28/2003 |
| 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 |
| 6432851 | Durable Sb-stabilized Mo+W phosphate glasses A durable low Tg Sb-stabilized Mo+W phosphate based glass composition exhibiting superior resistance to attack by boiling water, humidity and acids resulting from the addition of Sb to Mo+W phosphate based glass compositions. Specifically, the ... | 08/13/2002 |
| 6376399 | Tungstate, molybdate, vanadate base glasses Alkali tungstate, molybdate and vanadate glasses, and telecommunications components embodying such glasses, the compositions of the glasses consisting essentially of 15-70 mol percent of at least one oxide selected from the group consisting of WO3 | 04/23/2002 |
| 6355586 | Low melting point glass and glass ceramic composition A low melting point glass consisting essentially of, as represented by mol % based on the following oxides: Mol % SnO 2 to 37.5, ZnO 5 to 73, ... | 03/12/2002 |
