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Compositions: ceramic April category listing, related patent applications 04/12

20120100981 - Optical glass: An optical glass that is an oxide glass having a very high refractive index in spite of its low-dispersion property, having excellent glass stability and having less susceptibility to coloring.... Agent: Hoya Corporation

20120100982 - Cordierite-based sintered body: The present invention is intended to drastically improve a precision polishing characteristic of a cordierite-based sintered body which has low thermal expansibility, high dimensional long-term stability and high rigidity (high elastic modulus). The cordierite-based sintered body comprises cordierite as primary components, and one or more selected from the group consisting... Agent: Krosakiharima Corporation

20120100983 - Inorganic fibrous shaped body, method of producing the same and heating equipment: An inorganic fibrous shaped body including partially-crystallized bio-soluble inorganic fibers and an inorganic binder, wherein the bio-soluble inorganic fibers are SiO2/MgO fibers or SiO2/CaO fibers having the following composition: [SiO2/MgO fibers] SiO2 66 to 82 wt % CaO 1 to 9 wt % MgO 10 to 30 wt % Al2O3... Agent: Nichias Corporation

20120094821 - Method and devices for producing optical glass elements, particularly concentrator optics: a method and to an apparatus for producing optical glass elements, in particular for producing what is referred to as low-cost optics for focusing light onto small areas, for example, for photovoltaic applications or optical couplers. The method for producing the optical glass elements includes: providing a glass rod having... Agent:

20120094822 - Lithium silicate glass ceramic for fabrication of dental appliances: The present invention relates to a method of fabricating an improved lithium silicate glass ceramic and to that material for the manufacture of blocks for dental appliances using a CAD/CAM process and hot pressing system. The lithium silicate material has a chemical composition that is different from those reported in... Agent: James R., Glidewell Dental Ceramics, Inc.

20120094823 - Transparent zirconia sintered body, method for producing same, and use of same: The subject of the present invention relates to obtaining a zirconia sintered body having excellent in both properties of a translucency and a mechanical strength. The present invention relates to obtaining a high-strength zirconia sintered body having a translucency of an in-line transmission of 50% or more at a sample... Agent: Tosoh Corporation

20120094824 - Aluminum titanate-based ceramics: The invention is to provide an aluminum titanate-based ceramics showing a good mechanical strength. The invention is an aluminum titanate-based ceramics obtained by firing a starting material mixture which contains a titanium element and an aluminum element, and further contains a chromium element and/or a tungsten element. Preferably, a content... Agent: Sumitomo Chemical Company, Limited

20120088648 - Alkali-free glass compositions having high thermal and chemical stability: Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs). In accordance with certain of its aspects, the glasses possess good dimensional stability as a function of temperature.... Agent:

20120088649 - Manufacturing transparent yttrium aluminum garnet by spark plasma sintering: This invention provides a polycrystalline yttrium aluminum garnet (YAG) which is transparent in the visible and near infrared region. The invention also provides a method of manufacturing a transparent sintered YAG, which has nearly no porosity.... Agent:

20120083401 - Cover glass and method for producing cover glass: The disclosed cover glass is produced by etching a glass substrate that has been formed by a down-drawing process, and chemically strengthening the glass substrate to provide the glass substrate with a compressive-stress layer on the principal surfaces thereof. The glass substrate contains, as components thereof, 50% to 70% by... Agent: Avanstrate Inc.

20120083402 - Hexagonal type barium titanate powder, producing method thereof, dielectric ceramic composition, electronic component, and producing method of the electronic component: e