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| Number | Title | Issue Date |
| 8158543 | Fining agents for silicate glasses A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at... | 04/17/2012 |
| 8114798 | Fining agents for silicate glasses A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at... | 02/14/2012 |
| 8048817 | Amorphous silica powder, process for its production, and sealing material for semiconductors To provide an amorphous silica powder suitable for a sealing material for semiconductors having improved HTSL properties and HTOL properties, and a process for its production. An amorphous silica powder containing Al in an amount of from 0.03 to 20 mass % as ... | 11/01/2011 |
| 7867933 | Lithium silicate glass ceramic Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength. ... | 01/11/2011 |
| 7838452 | Ultraviolet ray transmitting glass composition and glass article making use of the same An ultraviolet ray transmitting glass composition including the following components, in terms of mass % or mass ppm: 60 to 79% SiO2; 0 to 1% B2O3; exceeded 0% but not more than 20% Al2O3; 0 to 10% Li2 | 11/23/2010 |
| 7687420 | Tempered glass and process for producing the same The invention relates to a tempered glass comprising, in terms of mass percent, SiO2: 60 to 80%; Al2O3: 3 to 18%; B2O3: 0 to 7%; Li2O: 0.01 to 10%; Na2O: 4 to 16%; K2O: 0 to 15%;... | 03/30/2010 |
| 7399721 | Glass for laser processing A glass for laser processing of the present invention can be laser-processed by causing ablation or evaporation by laser beam energy absorbed therein, wherein the glass for laser processing has a composition that satisfies the following conditions: 60≦Si... | 07/15/2008 |
| 7396788 | Glass composition and glass substrate A glass substrate for use as the substrate of an information recording medium such as a magnetic disk, magneto-optical disk, DVD, or MD or of an optical communication device, and a glass composition for making such a glass substrate, contains the following glass ing... | 07/08/2008 |
| 7365037 | Quartz glass having excellent resistance against plasma corrosion and method for producing the same As a jig material to use under plasma reaction for producing semiconductors the present invention provides a quartz glass having resistance against plasma corrosion, particularly corrosion resistance against fluorine-based plasma gases, and which is usable without c... | 04/29/2008 |
| 7358205 | Alkali-free glass substrate An alkali-free glass substrate containing, by mass percent, 50-70% of SiO2, 10-25% of Al2O3, 5-20% of B2O3, 0-10% of MgO, 0-15% of CaO, 0-10% of BaO, 0-10% of SrO and 0-5% of ZnO, also containing SnO2 | 04/15/2008 |
| 7316740 | Lithium silicate materials Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength. ... | 01/08/2008 |
| 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 |
| 7285506 | Lamp reflector substrate, glass, glass-ceramic materials and process for making the same The present invention relates to glass, glass-ceramic materials, lamp reflectors and processes for making them. The glass material has a composition, by weight of the total composition, comprising 56-67% SiO2; 9-22% Al2O3; 3.4-3.8% L... | 10/23/2007 |
| 7285510 | Glass composition for poling and glass functional product containing the same The present invention provides a glass composition suitable for producing a poling effect. This glass composition includes 0.001 to 0.5 mol % of univalent metal ions in terms of oxide thereof, 0.1 to 40 mol % of Al2O3, and 0 to 15 mol % of B | 10/23/2007 |
| 7265070 | Synthetic silica glass optical material having high resistance to optically induced index change Disclosed is a synthetic silica glass optical material having high resistance to optical damage by ultraviolet radiation in the ultraviolet wavelength range, particularly in the wavelength region of less than about 250 nm and particularly, exhibiting a low laser ind... | 09/04/2007 |
| 7262144 | Photostructurable body and process for treating a glass and/or a glass-ceramic The invention relates to a photostructurable body, in particular glass or glass-ceramic, in which the glass is a multicomponent glass and/or the glass-ceramic is a multicomponent glass-ceramic, in each case having a positive change in refractive index Δn as a resul... | 08/28/2007 |
| 7217672 | 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 0.43W, pulse ... | 05/15/2007 |
| 7214441 | Low alkali sealing frits, and seals and devices utilizing such frits A solid oxide fuel cell device incorporates a sealing material resistant to hydrogen gas permeation at a sealing temperature in the intermediate temperature range of 600° C.–900° C., the seal having a CTE in the 100×10−7/° C. to 120×10−7 | 05/08/2007 |
| 7189671 | Glass compositions Improved glass fibers compositions, typically useful for fire resistant blankets or containers to provide high burn-through resistance at high temperatures of 2,400° F. and higher, and typically comprising silica, sodium oxide, potassium oxide, calcium oxide, magne... | 03/13/2007 |
| 7189470 | Sealing materials and devices utilizing such materials A solid oxide fuel cell device incorporates a sealing material resistant to hydrogen gas permeation at a sealing temperature in the intermediate temperature range of 600° C.–800° C., the seal having a CTE in the 100×10−7/° C. to 120×10−7 | 03/13/2007 |
| 7169476 | Zinc oxide-alumina-silica-based crystallized glass A zinc oxide-alumina-silica-based crystallized glass is provided, containing zinc oxide, alumina and silica as main components, and zirconia as a nucleating agent. The main components are provided in a ratio of 20–30% by mass of zinc oxide, 15–25% by mass of alu... | 01/30/2007 |
| 7160824 | Glass compositions Disclosed are glass compositions and glass fibers formed from certain embodiments of the disclosed glass compositions. Certain embodiments of the glass compositions include, among other components, bismuth oxide. Certain embodiments of the glass composition include ... | 01/09/2007 |
| 7157149 | Surface-modified glass-ceramics and their preparation The present invention relates to a product, comprising a body which is delimited by a surface, of a lithium aluminosilicate-based glass-ceramic, as well as to its method of preparation. Characteristically, said glass-ceramic has, on at least one part of said surface... | 01/02/2007 |
| 7153795 | Glass and glass-ceramic materials, articles and method of preparing the same The present invention relates to novel glass and glass-ceramic materials, articles made from said novel glass-ceramics and to methods of preparing said novel glass-ceramics and articles. Said novel, transparent, translucent or opaque glass-ceramics, which contain, a... | 12/26/2006 |
| 7107793 | Lithium-aluminosilicate glass ceramic with high keatite content and structural member made thereof A lithium-aluminosilicate glass ceramic is transformed by a suitable heat treatment into a glass ceramic comprising at least 80 vol.-% of keatite mixed crystals. This may be utilized for the preparation of optical or mechanical high-precision parts having a high tem... | 09/19/2006 |
| 7101625 | Glass for a light filter and a light filter Glass for a light filter capable of preventing variation of refractive index in a band-pass filter has a coefficient of thermal expansion within a range from 90×10−7/° C. to 120×10−7/° C. within a temperature range from −20° C. to +7... | 09/05/2006 |
| 7091141 | Lamp reflector substrate, glass, glass-ceramic materials and process for making the same The present invention relates to glass, glass-ceramic materials, lamp reflectors and processes for making them. The glass material has a composition, by weight of the total composition, comprising 56–67% SiO2; 9–22% Al2O3; 3.4–... | 08/15/2006 |
| 7091142 | Glass-ceramic and its production and use The invention encompasses a glass-ceramic comprising a continuous glass phase and a crystal phase comprising tetragonal leucite, wherein the glass-ceramic has a crack-free glass phase and a crystal phase comprising leucite crystals distributed essentially homogeneou... | 08/15/2006 |
| 7087307 | Glass sheet and glass sheet photoelectric converter device The present invention provides a glass sheet formed on molten tin, that exhibits a high transmittance that is originally inherent to its composition. In this glass sheet, the difference between a visible light reflectance of a surface formed in contact with the molt... | 08/08/2006 |
| 7084084 | Highly durable silica glass, process for producing same, member comprised thereof, and apparatus provided therewith Highly durable silica glass comprising silica having incorporated therein aluminum and at least one element (M) selected from group 2A elements, group 3A elements and group 4A elements of the periodic table. Preferably, the sum of aluminum and element (M) is at leas... | 08/01/2006 |
| 7045475 | High refractive index glass beads for high retroreflectivity surfaces Glass formulations, and a method of converting such glass formulations to glass beads having a refractive index of at least 1.59 and a high level of retroreflectivity, are provided. The methods and formulations provide beads also having high levels of resistance to ... | 05/16/2006 |
| 7008891 | Crystallized glass for optical filter substrate, and optical filter A crystallized glass for an optical filter substrate, which has an average linear expansion coefficient αL of from 95×10−7/° C. to 130×10−7/° C. at from −30° C. to 70° C. and which has a crystal or the like of Na4-x... | 03/07/2006 |
| 7005187 | Glass for a light filter and a light filter Glass for a light filter capable of preventing variation of refractive index in a band-pass filter has a coefficient of thermal expansion within a range from 90×10−7/° C. within a temperature range from −20° C. to +70° C. and, preferably, Young's ... | 02/28/2006 |
| 6989633 | Alkaline-earth aluminosilicate glass, containing CA and BA, suitable for use in lamp bulbs, and a lamp bulb containing same An alkaline-earth aluminosilicate glass having a composition (in % by weight, based on oxide) of SiO2>55-64; Al2O3 13-18; B2O3 0-5.5; M5O 0-7; CaO 5.5-14; SrO 0-8; BaO 6-17; ZrO2 0-2; CeO | 01/24/2006 |
| 6960545 | Preferably Pb-free and As-free optical glasses with Tg≦500° C. The present invention relates to preferably lead-free and arsenic-free optical glasses, having a refractive index of 1.48≦nd≦1.56, an Abbe number of 64≦νd≦72, a low transformation temperature (Tg≦500° C.) and good ion exchange properties, as w... | 11/01/2005 |
| 6825139 | Poly-crystalline compositions The invention relates to a crystalline composition, a poly-crystalline product and an article of manufacture comprising an amount of SiO2, Al2O3, CaO, Fe2O3, TiO2, K2O, P2O5... | 11/30/2004 |
| 6825141 | Mold-press forming glass which is not fused to a mold and a method of producing the same A candidate composition is prepared. For the candidate composition, the basicity was calculated. With reference to the basicity thus calculated, the fusibility with a mold is evaluated. With reference to the result of evaluation, the composition is determined. A gla... | 11/30/2004 |
| 6822383 | CRT panel glass containing SrO and BaO In order to suppress production of devitrifying stones such as barium disilicate and strontium silicate and to achieve a high X-ray absorbability, a CRT panel glass does not substantially contain PbO and contains, in mass percent, 9-9.5% SrO and 8.5-9% BaO. In addit... | 11/23/2004 |
| 6821628 | Glass-ceramic cooking panel that makes deposited material, such as dirt, less conspicuous The cooking panel is made from an opaque glass-ceramic material uniformly colored throughout and having keatite mixed crystals as the predominant crystalline phase. The cooking panel is made by ceramicizing a ceramicizable glass or a transparent glass-ceramic with h... | 11/23/2004 |
| 6794043 | Glass-ceramics for a light filter There is provided a glass-ceramic which is suitable for use as a light filter. The glass-ceramic has Young's modulus (GPa) within a range from 95 to 120 and includes 5.3-8 weight percent of Al2O3, 0.5-3.5 weight percent of ZrO2 and 7... | 09/21/2004 |
