Abstract: Disclosed are state monitoring method and system for a heating device including a conductive path that electrically series-connects heating elements. The method includes obtaining a potential difference of a conductive path portion including at least one of the heating elements, obtaining monitoring information used to monitor a state of the heating elements, and determining occurrence of an anomaly in the conductive path portion based on the obtained monitoring information. The step of obtaining the potential difference includes obtaining a first potential difference of a first conductive path portion and obtaining a second potential difference of a second conductive path portion that differs from the first conductive path portion. The monitoring information includes comparison information obtained by comparing potential differences including the first potential difference and the second potential difference.

Abstract: Provided is a base (1) for a flexible mold, including: a glass sheet (2); a resin sheet (3); and a bonding layer (4) configured to bond the glass sheet (2) and the resin sheet (3) to each other, wherein the resin sheet (3) protrudes from the glass sheet (2).

Abstract: The present invention provides an alkali-free glass sheet, including as a glass composition, in terms of mol %, 55% to 80% of SiO2, 10% to 25% of Al2O3, 0% to 4% of B2O3, 0% to 30% of MgO, 0% to 25% of CaO, 0% to 15% of SrO, 0% to 15% of BaO, 0% to 5% of ZnO, and 0% to less than 1.0% of Y2O3+La2O3, being substantially free of an alkali metal oxide, and having a strain point of 750° C. or more.

Abstract: An alkali-free glass sheet of the present invention contains, as a glass composition, in mol %, from 64 to 72% of SiO2, from 11 to 15% of Al2O3, from 0 to 4% of B203, from 0 to 0.5% of Li2O'Na2O+K2O, from 5 to 12% of MgO, from 7 to 12% of CaO, from 0 to 1% of SrO, from 0 to 1% of BaO, and from 15 to 19% of MgO+CaO+SrO+BaO, and has a mol % ratio B203/Al2O3 of from 0.1 to 0.4, and a mol % ratio MgO/CaO of from 0.1 to 1.5.

Abstract: Provided is a glass for covering a semiconductor element, which has a small environmental load, excellent acid resistance, and a low firing temperature. A glass for covering a semiconductor element containing, by mol %, from 28 to 48% of SiO2, 3% or more and less than 10% of ZnO, from 5 to 25% of B2O3, from 10 to 25% of Al2O3, and from 8 to 22% of MgO+CaO as a glass composition, and containing substantially no lead component.

Abstract: Provided are a wavelength conversion member, a light-emitting element, and a light-emitting device which have high heat dissipation capability and are capable of reducing the decrease in luminescence intensity caused by increased output of an excitation light source. A wavelength conversion member 10 includes a matrix 2 and an inorganic phosphor 1 contained in the matrix 2 and has a relative density of 90% or more, a thermal conductivity of 10 W/m·K or more, and a quantum efficiency of 50% or more.

Abstract: Provided is a Ni-based positive electrode active material for a sodium ion secondary battery having an excellent discharge capacity. A positive electrode active material for a sodium ion secondary battery, the positive electrode active material being composed of crystals represented by a general formula Nax (Ni1-aMa)yP2Oz (where M represents at least one transition metal element selected from the group consisting of Fe, Cr, Mn, and Co and the following are satisfied: 0.6?x?4, 0.3?y?2.7, 0?a?0.9, and 6?z<7.5).

Abstract: An alkali-free glass sheet of the present invention contains, as a glass composition, in mol %, from 64 to 72% of SiO2, from 12 to 16% of Al2O3, from 0 to 3% of B2O3, from 0 to 0.5% of Li2O+Na2O+K2O, from 6 to 12% of MgO, from 3 to less than 9% of CaO, from 0 to 2% of SrO, and from 0 to 1% of BaO, and the alkali-free glass sheet has a mol % ratio SrO/CaO of from 0 to 0.2, and a mol % ratio (MgO+CaO+SrO+BaO)×CaO/(SiO2×MgO) of from 0 to 0.3.

Abstract: An alkali-free glass sheet of the present invention contains, as a glass composition, in mol %, from 64 to 72% of SiO2, from 12 to 15% of Al2O3, from 0 to 3% of B2O3, from 0 to 0.5% of Li2O+Na2O+K2O, from 6 to 12% of MgO, from 9 to 13% of CaO, from 0 to 2% of SrO, and from 0 to 1% of BaO, and the alkali-free glass sheet has a mol % ratio SrO/SiO2 of from 0 to 0.03.

Abstract: Provided are: a band-pass filter for which filter characteristics can be improved; and a manufacturing method therefor. A band-pass filter 11, which allows light of a specific wavelength region to pass, includes: a substrate 12 which has light transmitting properties; a first dielectric multilayer film 13 that is provided on a first main surface S1 of the substrate 12; and a second dielectric multilayer film 14 that is provided on a second main surface S2 which is opposite the first main surface S1. The first dielectric multilayer film 13 contains a hydrogenated silicon layer. The second dielectric multilayer film 14 contains a hydrogenated silicon layer.

Abstract: Provided is a wavelength conversion member that is less decreased in luminescence intensity with time by irradiation with light of an LED or LD and a light emitting device using the wavelength conversion member. A wavelength conversion member is formed of an inorganic phosphor dispersed in a glass matrix, wherein the glass matrix contains, in % by mole, 30 to 85% SiO2, 4.3 to 20% B2O3, 0 to 25% Al2O3, 0 to 3% Li2O, 0 to 3% Na2O, 0 to 3% K2O, 0 to 3% Li2O+Na2O+K2O, 0 to 35% MgO, 0 to 35% CaO, 0 to 35% SrO, 0 to 35% BaO, 0.1 to 45% MgO+CaO+SrO+BaO, and 0 to 5% ZnO, and the inorganic phosphor is at least one selected from the group consisting of an oxide phosphor, a nitride phosphor, an oxynitride phosphor, a chloride phosphor, an oxychloride phosphor, a halide phosphor, an aluminate phosphor, and a halophosphate phosphor.

Abstract: Disclosed is a method for manufacturing a bonded body that includes a glass member, a bonding subject member, and a bonding portion bonded to the glass member and the bonding subject member. The method includes a setting step, a pressing step, and a bonding portion formation step. The setting step is a step of setting a jig main body lid on a jig main body in a state in which a stack is disposed in a recess of the jig main body. The pressing step is a step of adjusting an atmospheric pressure in the recess of the jig main body after the setting step to press the stack with the jig main body lid. The bonding portion formation step is a step of forming the bonding portion from a bonding material included in the stack in a state in which the stack is pressed in the pressing step.

Abstract: A glass of the present invention includes as a glass composition, in terms of mass %, 55% to 70% of SiO2, 15% to 25% of Al2O3, 1% to 5% of B2O3, 0% to 0.5% of Li2O+Na2O+K2O, 0% to 4% of MgO, 3% to 11% of CaO, 0% to 4% of SrO, and 0% to 11% of BaO, and has a strain point of more than 715° C.

Abstract: A ceramic circuit board includes: a ceramic board; and an internal conductor disposed in the ceramic board, in which the ceramic board contains glass, a willemite filler, and an alumina filler, and an average particle diameter of the willemite filler is larger than an average particle diameter of the alumina filler.

Abstract: Provided is a wavelength conversion member which is made of a phosphor powder dispersed in a glass matrix and has an excellent luminous efficiency. A wavelength conversion member is comprising: a phosphor powder dispersed in a glass matrix, wherein the glass matrix has a refractive index (nd) of 1.6 or more and a liquidus temperature of 1070° C. or below.

Abstract: Provided is a method comprises: continuously forming an elongated, glass film having marginal portions from molten glass into a given shape having two marginal portions, in width-directional opposite edge regions thereof, wherein the glass film having marginal portions has the marginal portions, and an effective portion formed in a width-directional central region of the glass film having marginal portions; annealing the glass film having marginal portions; continuously forming resin tapes on the glass film having marginal portions at positions adjacent to and away by a given distance from the respective marginal portions, to extend in a length direction of the glass film having marginal portions; and continuously removing each of the marginal portions from the glass film having marginal portions, along a position between the marginal portion and a corresponding one of the resin tapes, or at a given width-directional position within the corresponding resin tape.

Abstract: Provided is a method of manufacturing plate-like members whereby shape defects in the plate-like members can be prevented to increase production yield and a laminate for use in the method of manufacturing plate-like members.

Abstract: A Faraday rotator includes a magnetic circuit including first to third magnetic materials each provided with a through hole through which light passes, and a Faraday element disposed in the through hole. When a direction where light passes through the through hole is defined as a direction of an optical axis, the first magnetic material is magnetized in a direction perpendicular to the direction of the optical axis, the second magnetic material is magnetized in a direction parallel to the direction of the optical axis, and the third magnetic material is magnetized in a direction perpendicular to the direction of the optical axis, and a length of the Faraday element along the direction of the optical axis is shorter than a length of the second magnetic material along the direction of the optical axis.

Abstract: A glass roll of band-shaped glass film is free of skew and single slack when a roll-to-roll mode is used. The band-shaped glass film is wound into a roll shape and has creases formed thereon. The band-shaped glass film includes an effective section with two side edges in a width direction extending parallel to each other, and leading and trailing end portions extending parallel to the width direction. When a length from the leading end portion to the trailing end portion along a surface of the effective section is measured along each of a first position along one side edge and a second position along another side edge, a difference between the first and second measurement lengths is 400 ppm or less of a longer measurement length of the first and second measurement lengths.

Abstract: The present invention provides a tempered glass sheet having a compressive stress layer in a surface thereof, the tempered glass sheet including as a glass composition, in terms of mol %, 50% to 80% of SiO2, 8% to 25% of Al2O3, 0% to 10% of B2O3, 3% to 15% of Li2O, 3% to 21% of Na2O, 0% to 10% of K2O, 0% to 10% of MgO, 0% to 10% of ZnO, and 0% to 15% of P2O5.