Abstract: A composite ceramic powder of the present invention includes: a LAS-based ceramic powder having precipitated therein ?-eucryptite or a ?-quartz solid solution as a main crystal; and TiO2 powder and/or ZrO2 powder.

Abstract: A sealing material of the present invention is a sealing material for sealing a metal material, including 70 mass % to 100 mass % of glass powder including alkali silicate glass and 0 mass % to 30 mass % of ceramic powder, and having a linear thermal expansion coefficient in a temperature range of from 30° C. to 380° C. of more than 100×10?7/° C. and 170×10?7/° C. or less.

Abstract: A composite ceramic powder of the present invention includes: a LAS-based ceramic powder having precipitated therein ?-eucryptite or a ?-quartz solid solution as a main crystal; and TiO2 powder and/or ZrO2 powder,.

Abstract: A sealing material of the present invention is a sealing material for sealing a metal material, including 70 mass % to 100 mass % of glass powder including alkali silicate glass and 0 mass % to 30 mass % of ceramic powder, and having a linear thermal expansion coefficient in a temperature range of from 30° C. to 380° C. of more than 100×10?7/° C. and 170×10?7/° C. or less.

Abstract: A touch switch including: at least two of operation faces provided side by side; a detection electrode provided in each of the operation faces and including a wiring pattern of an electric conductor formed on or immediately below the operation face; and a controller connected to each of the detection electrodes to perform a switching operation by detecting variations of capacitance sensed by each of the detection electrodes, the variation of capacitance being generated when a human body part is in proximity to or in contact with each of the operation faces. At least one of the detection electrodes includes a wiring pattern more sparsely formed in a vicinity area of a boundary with another operation face adjacent thereto compared to a wiring pattern of the detection electrode provided in the adjacent operation face. Therefore, detection errors or accidental operations between adjacent switches can be prevented from happening.

Abstract: A dopant host containing, in terms of mole %, 20 to 50% SiO2, 30 to 60% (exclusive of 30%) Al2O3, 10 to 40% B2O3, and 2 to 10% RO, wherein R represents alkaline earth metal, or being a laminate including a boron component volatilization layer containing, in terms of mole %, 30 to 60% SiO2, 10 to 30% Al2O3, 15 to 50% B2O3, and 2 to 10% RO, wherein R represents alkaline earth metal, and a heat resistant layer containing, in terms of mole %, 8 to 30% SiO2, 50 to 85% Al2O3, 5 to 20% B2O3, and 0.5 to 7% RO, wherein R represents alkaline earth metal. A process for producing a boron dopant for a semiconductor including the steps of slurrying a starting material powder containing a boron-containing crystalline glass powder, forming the slurry to prepare a green sheet, and sintering the green sheet.

Abstract: A dopant host containing, in terms of mole %, 20 to 50% SiO2, 30 to 60% (exclusive of 30%) Al2O3, 10 to 40% B2O3, and 2 to 10% RO, wherein R represents alkaline earth metal, or being a laminate including a boron component volatilization layer containing, in terms of mole %, 30 to 60% SiO2, 10 to 30% Al2O3, 15 to 50% B2O3, and 2 to 10% RO, wherein R represents alkaline earth metal, and a heat resistant layer containing, in terms of mole %, 8 to 30% SiO2, 50 to 85% Al2O3, 5 to 20% B2O3, and 0.5 to 7% RO, wherein R represents alkaline earth metal. A process for producing a boron dopant for a semiconductor including the steps of slurrying a starting material powder containing a boron-containing crystalline glass powder, forming the slurry to prepare a green sheet, and sintering the green sheet.

Abstract: A touch switch including: at least two of operation faces provided side by side; a detection electrode provided in each of the operation faces and including a wiring pattern of an electric conductor formed on or immediately below the operation face; and a controller connected to each of the detection electrodes to perform a switching operation by detecting variations of capacitance sensed by each of the detection electrodes, the variation of capacitance being generated when a human body part is in proximity to or in contact with each of the operation faces. At least one of the detection electrodes includes a wiring pattern more sparsely formed in a vicinity area of a boundary with another operation face adjacent thereto compared to a wiring pattern of the detection electrode provided in the adjacent operation face. Therefore, detection errors or accidental operations between adjacent switches can be prevented from happening.

Abstract: A dopant host containing, in terms of mole %, 20 to 50% SiO2, 30 to 60% (exclusive of 30%) Al2O3, 10 to 40% B2O3, and 2 to 10% RO, wherein R represents an alkaline earth metal, or including a laminate including a boron component volatilization layer containing, in terms of mole %, 30 to 60% SiO2, 10 to 30% Al2O3, 15 to 50% B2O3, 2 to 10% RO, wherein R represents an alkaline earth metal, and a heat resistant layer containing, in terms of mole %, 8 to 30% SiO2, 50 to 85% Al2O3, 5 to 20% B2O3, and 0.5 to 7% RO, wherein R represents an alkaline earth metal. A process for producing a boron dopant for a semiconductor includes the steps of slurrying a starting material powder containing a boron-containing crystalline glass powder, forming the slurry to prepare a green sheet, and sintering the green sheet.

Abstract: Glass powder for a dielectric material has a nature that, when fired, diopside (CaMgSi2O6) and at least one of titanite (CaTi(SiO4)O) and titania (TiO2) are precipitated. Preferably, the glass powder has a composition including SiO2, CaO, MgO, and TiO2 and the total content of these components is 80 mass % or more. Preferably, the glass powder comprises, by mass percent, 35–65% SiO2, 10–30% CaO, 10–20% MgO, and 12–30% TiO2.

Abstract: Glass powder for a dielectric material has a nature that, when fired, diopside (CaMgSi2O6) and at least one of titanite (CaTi(SiO4)O) and titania (TiO2) are precipitated. Preferably, the glass powder has a composition including SiO2, CaO, MgO, and TiO2 and the total content of these components is 80 mass % or more. Preferably, the glass powder comprises, by mass percent, 35-65% SiO2, 10-30% CaO, 10-20% MgO, and 12-30% TiO2.

Abstract: Glass powder for a dielectric material has a nature that, when fired, diopside (CaMgSi2O6) and at least one of titanite (CaTi(SiO4)O) and titania (TiO2) are precipitated. Preferably, the glass powder has a composition including SiO2, CaO, MgO, and TiO2 and the total content of these components is 80 mass % or more. Preferably, the glass powder comprises, by mass percent, 35-65% SiO2, 10-30% CaO, 10-20% MgO, and 12-30% TiO2.

Abstract: In a sintered glass ceramic product including at least three layers each of which is formed by a glass ceramic material, the layers are stacked to be substantially symmetrical in a stacking direction and integrally sintered. Among the sintered layers, each of outermost layers and an inner layer adjacent thereto have crystal phases different from each other. Each of the outermost layers and the inner layer have thermal expansion coefficients &agr;1 and &agr;2 selected so that the relationship given by 0<&agr;2−&agr;1<5 ppm is satisfied.

Abstract: The present invention provides a glass ceramics dielectric material, comprising: a crystallizable glass powder in an amount of from 40% to 100% by mass; and a ceramics powder in an amount of from 0% to 60% by mass, wherein the crystallizable glass powder comprises: SiO2 in an amount of from 35% to 65% by mass; CaO in an amount of from 10% to 30% by mass; MgO in an amount of from 10% to 20% by mass; and ZnO in an amount of from 0.5% to 35% by mass, and wherein the material is capable of forming: diopside, CaMgSi2O6, as crystals; and at least one of hardestnite, Ca2ZnSiO7, and willemite, Zn2SiO4, as crystals; and a sintered glass ceramics, comprising: diopside, CaMgSi2O6, as crystals; and at least one of hardestnite, Ca2ZnSiO7, and willemite, Zn2SiO4, as crystals.

Abstract: Glass powder for a dielectric material has a nature that, when fired, diopside (CaMgSi2O6) and at least one of titanite (CaTi(SiO4)O) and titania (TiO2) are precipitated. Preferably, the glass powder has a composition including SiO2, CaO, MgO, and TiO2 and the total content of these components is 80 mass % or more. Preferably, the glass powder comprises, by mass percent, 35-65% SiO2, 10-30% CaO, 10-20% MgO, and 12-30% TiO2.

Abstract: In a sintered glass ceramic product including at least three layers each of which is formed by a glass ceramic material, the layers are stacked to be substantially symmetrical in a stacking direction and integrally sintered. Among the sintered layers, each of outermost layers and an inner layer adjacent thereto have crystal phases different from each other. Each of the outermost layers and the inner layer have thermal expansion coefficients &agr;1 and &agr;2 selected so that the relationship given by 0<&agr;2−&agr;1<5 ppm is satisfied.

Abstract: The present invention provides a glass ceramics dielectric material, comprising: a crystallizable glass powder in an amount of from 40% to 100% by mass; and a ceramics powder in an amount of from 0% to 60% by mass, wherein the crystallizable glass powder comprises: SiO2 in an amount of from 35% to 65% by mass; CaO in an amount of from 10% to 30% by mass; MgO in an amount of from 10% to 20% by mass; and ZnO in an amount of from 0.5% to 35% by mass, and wherein the material is capable of forming: diopside, CaMgSi2O6, as crystals; and at least one of hardestnite, Ca2ZnSiO7, and willemite, Zn2SiO4, as crystals; and a sintered glass ceramics, comprising: diopside, CaMgSi2O6, as crystals; and at least one of hardestnite, Ca2ZnSiO7, and willemite, Zn2SiO4, as crystals.