Abstract: An oxide ion-conducting solid electrolyte containing a mayenite-type compound having a representative composition represented by Ca12Al14O33, and 9 mol % to 30 mol % of titanium (Ti) in terms of TiO2.

Abstract: The present invention relates to a glass sheet including a first main surface and a second main surface opposing the first main surface, in which the glass sheet has an affected layer directly below the first main surface, in at least a part of the first main surface, an average element length RSm is from 2500 nm to 6000 nm, a root-mean-square height Sq is from 3 nm to 45 nm, and a skewness Ssk is a negative value.

Abstract: The invention relates to a glass including, as represented by mol % based on elements: 8-25% of P; 8-40% of Sn; 20-80% of O; and 1-50% of F, in which the glass has a glass transition temperature Tg of 300° C. or lower, and the glass gives an infrared absorption spectrum satisfying A3240/A3100 of 0.6-1.2, where the A3100 is an absorbance per 1-mm thickness at a wavenumber of 3,100 cm?1 and the A3240 is an absorbance per 1-mm thickness at a wavenumber of 3,240 cm?1.

Abstract: The present invention relates to a glass substrate, having a specific matrix composition and including an etched surface having the number of protrusions of 400 or more and 2,000 or less on at least one of main surfaces, in which the number of protrusions is obtained by measuring a region of 285.12 ?m×213.77 ?m with a laser microscope to obtain XYZ data of a surface shape, and conducting a shape analysis of the XYZ data by using an image processing software SPIP manufactured by Image Metrology.

Abstract: The present invention relates to a glass sheet including a first main surface and a second main surface opposing the first main surface, in which the glass sheet has an affected layer directly below the first main surface, in at least a part of the first main surface, an average element length RSm is from 2500 nm to 6000 nm, a root-mean-square height Sq is from 3 nm to 45 nm, and a skewness Ssk is a negative value.

Abstract: The present invention relates to a cover member having: a first main surface, and a second main surface which is a side on which an ultrasonic unit is to be disposed, in which the cover member includes a member having an acoustic impedance Z of 3 to 25 (×106 kg/m2/s).

Abstract: 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: 0.6 to 4.9%, WO3: 1 to 20%, La2O3: 25 to 50%, Gd2O3: 0 to 13%, and Y2O3: 0.2 to 20%, provided that La2O3+Gd2O3+Y2O3 is 35 to 60%, in which the optical glass does not substantially contain Nb2O5, and has a refractive index (nd) of 1.82 to 1.86, an Abbe's number (?d) of 37 to 44 and a glass transition point (Tg) of 630° C. or lower.

Abstract: An object of the invention is to provide an optical glass for precision press having optical properties of a high refractive index and a low dispersion property and having a low molding temperature, a high devitrification resistance, an excellent molding property, and a small specific gravity. The optical glass of the invention contains, in terms of % by mass on the basis of oxides, respective components of B2O3: 10 to 20%, SiO2: 0.5 to 12%, La2O3: 25 to 50%, Gd2O3: 0 to 20%, Y2O3: 0 to 20%, provided that La2O3+Gd2O3+Y2O3: 35 to 60%, ZnO: 5 to 20%, Li2O: 0.2 to 3%, ZrO2: 0 to 0.5%, Ta2O5: 3 to 18% and WO3: 3 to 20%, and has optical constants of a refractive index nd of 1.84 to 1.86 and an Abbe number vd of 37 to 42 and a glass transition point (Tg) of 630° C. or lower.

Abstract: 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: 0.6 to 4.9%, WO3: 1 to 20%, La2O3: 25 to 50%, Gd2O3: 0 to 13%, and Y2O3: 0.2 to 20%, provided that La2O3+Gd2O3+Y2O3 is 35 to 60%, in which the optical glass does not substantially contain Nb2O5, and has a refractive index (nd) of 1.82 to 1.86, an Abbe's number (?d) of 37 to 44 and a glass transition point (Tg) of 630° C. or lower.

Abstract: An object of the invention is to provide an optical glass for precision press having optical properties of a high refractive index and a low dispersion property and having a low molding temperature, a high devitrification resistance, an excellent molding property, and a small specific gravity. The optical glass of the invention contains, in terms of % by mass on the basis of oxides, respective components of B2O3: 10 to 20%, SiO2: 0.5 to 12%, La2O3: 25 to 50%, Gd2O3: 0 to 20%, Y2O3: 0 to 20%, provided that La2O3+Gd2O3+Y2O3: 35 to 60%, ZnO: 5 to 20%, Li2O: 0.2 to 3%, ZrO2: 0 to 0.5%, Ta2O5: 3 to 18% and WO3: 3 to 20%, and has optical constants of a refractive index nd of 1.84 to 1.86 and an Abbe number vd of 37 to 42 and a glass transition point (Tg) of 630° C. or lower.

Abstract: To provide a method for producing a laminated dielectric material using a stabilized glass. A method for producing a laminated dielectric material wherein the absolute value of the difference in the average linear expansion coefficient at from 50 to 350° C. between any adjacent dielectric layers is at most 15×10?7/° C.; at least one raw material layer before firing, comprises, as represented by mass %, from 50 to 80% of glass powder and from 20 to 50% of alumina powder; said glass powder comprises, as represented by mol %, from 45 to 60% of SiO2, from 2 to 10% of Al2O3, from 10 to 30% of BaO, from 10 to 20% of ZnO, etc.; and each of glass powders contained in two raw material layers adjacent to said raw material layer, comprises, as represented by mol %, from 45 to 55% of SiO2, from 2 to 20% of Al2O3, from 20 to 45% of MgO, etc.; and the glass transition temperature of the latter glass powder is higher by at least 50° C. than that of the former.