Compositions: ceramic inventions 07/09

20090186753 - Materials comprising barium zirconate and methods for manufacturing thereof: A method for manufacturing barium zirconate particles includes providing a mixture of materials that includes barium, zirconium and a sintering aid, wherein the sintering aid includes at least one of barium tungstate, potassium niobate, tungsten oxide, barium molybdate, molybdenum oxide, potassium tantalate, potassium oxide, sodium niobate, sodium tantalate, sodium oxide,... Agent: Smith Frohwein Tempel Greenlee Blaha, LLC

20090181842 - Polarization-maintaining optical fiber and method for manufacturing the same: A method for manufacturing a polarization-maintaining optical fiber is provided. The method includes (a) making a fiber preform by providing in an over-cladding tube: a core rod having an inner core and a cladding surrounding the inner core; at least one stress-applying part (SAP) disposed adjacent to the core rod... Agent: Merchant & Gould, P.C.

20090181843 - Glass article and method of producing the same: The present invention provides a glass article using a glass composition including a base glass composition and colorants. The base glass composition includes, expressed in mass %: 65 to 80% of SiO2; 0 to 5% of Al2O3; 0 to 10% of MgO; 0 to 15% of CaO; 5 to 15%... Agent: Hamre, Schumann, Mueller & Larson, P.C.

20090181844 - Ceramic material: The present invention provides a ceramic material, containing silicon, aluminum, iron, calcium, titanium, and potassium as major constituents; and sulfur, strontium, vanadium, and yttrium as accessory constituents. In addition, the ceramic material of the present invention may be used for products such as cloth, accessories, filters for liquid, and cosmetic... Agent: Day Pitney LLP

20090176639 - Method and furnace with series-arranged baths for producing glass frits: The invention relates to a furnace for continuously melting a silica-containing compound comprising at least two series-arranged baths each of which is provided with at least one burner submerged into molten material. Said invention also relates to a method for producing silica-containing compounds, the silica and the melt thereof being... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090176640 - Alkali-free glass substrate, method for producing it and liquid crystal display panel: An alkali-free glass substrate, which contains neither alkali component nor BaO and consists essentially of, as represented by mol % based on oxide, from 57.0 to 65.0% of SiO2, from 10.0 to 12.0% of Al2O3, from 6.0 to 9.0% of B2O3, from 5.0 to 10.0% of MgO, from 5.0 to... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090176641 - Optical glass, glass molded body, optical device and their production methods: An optical class comprising, by mass %, 12 to 30% of total of B2O3 and SiO2, 55 to 80% of total of La2O3, Gd2O3, Y2O3, ZrO2, Nb2O5 and WO3, 2 to 10% of ZrO2, 0 to 15% of Nb2O5, 0 to 15% of ZnO and 0% or more but less... Agent: Nixon & Vanderhye, PC

20090176642 - High-resistance high-zirconia cast refractory material: A high-zirconia cast refractory material which contains 85-95 wt % of ZrO2, 4-12 wt % of SiO2, 0.1 to less than 0.8 wt % of Al2O3, less than 0.04 wt % of Na2O, 0.01-0.15 wt % of K2O, 0.1-1.5 wt % of B2O3, 0.01-0.2 wt % of CaO, less than... Agent: Bacon & Thomas, PLLC

20090170684 - Alkali-free glass substrate and process for producing the same: The invention provides an alkali-free glass substrate small in the variation of the thermal shrinkage and a process for producing the same. An alkali-free glass substrate of the invention has an absolute value of a thermal shrinkage of 50 ppm or more when the alkali-free glass substrate is heated at... Agent: Drinker Biddle & Reath (dc)

20090170685 - Method of producing a lead zirconium titanate-based sintered body, lead zirconium titanate-based sintered body, and lead zirconium titanate-based sputtering target: To obtain a method of producing a high-density lead zirconium titanate-based sintered body having uniform crystalline phases and containing a large amount of PbO, provided is a method of producing a lead zirconium titanate-based sintered body, including: producing a pre-sintered body by sintering raw material powder of lead zirconium titanate... Agent: Harness, Dickey & Pierce, P.L.C

20090170686 - Crystallographically-oriented ceramic: A crystallographically-oriented ceramic containing Pb and in which piezoelectric/electrostrictive properties can be enhanced. Using a raw material having Pb(Zr1-xTiX)O3 as a main component, a ceramic sheet was formed with a thickness of 15 μm or less. In this material, grains were allowed to grow into an anisotropic shape, and crystal... Agent: Burr & Brown