Abstract: Provided is a battery including a battery element having a positive electrode, a negative electrode, and a solid electrolyte layer between the positive electrode and the negative electrode, and further including an exterior body covering the battery element, in which at least one of the positive electrode, the negative electrode, and the solid electrolyte layer includes a solid electrolyte represented by Formula (1) of Li3+aE1-bGbDcXd-e, and a moisture content in a housing space between the battery element and the exterior body is less than 1100 ppmv.

Abstract: A photonic crystal device to be used for trapping an atom and including a photonic crystal body, a slot waveguide, and an attractive force trap light laser. The photonic crystal body includes a base and a plurality of lattice elements periodically provided on the base, the slot waveguide is arranged between periodic lattice rows and includes an opening on one side face of the photonic crystal body, and the attractive force trap light laser is excited by excitation light incident from the opening and oscillates at a wavelength being longer than a wavelength of an absorption edge of the atom.

Abstract: A reactive emulsifier for emulsion polymerization that does not have a polyoxyalkylene chain as a hydrophilic group, has good stability at the time of emulsion polymerization, and gives a polymer and a polymer film, having greatly improved various properties such as water resistance, adhesion, heat resistance and weather resistance is disclosed. The emulsifier for emulsion polymerization includes a compound represented by the following formula (1): wherein R1 represents a substituent represented by R or —CH2—O—R wherein R represents a hydrocarbon group; R2 represents a hydrogen atom or a methyl group; n represents from 1 to 200; X1 and X2 each represents a hydrogen atom, a hydrocarbon group or an anionic hydrophilic group.

Abstract: A high frequency circuit elemental device comprising a casing and a dielectric ceramic mounted in said casing, such as oscillators, said dielectric ceramic being capable of undergoing order-disorder structural transformation, whereby the temperature coefficient of the resonant frequency of said elemental device can be compensated by heat-treatment of the dielectric ceramic.

Abstract: Dielectric ceramic and process of producing the same. A dielectric ceramic essentially consisting of a compound having a disordered perovskite-type complex crystal structure and having a composition represented by the general formula (I):Ba.sub.x A.sub.y B.sub.1-x-y O.sub.W (I)wherein A represents at least one element selected from the group consisting of Zn, Ni, Co and Mg, and the Mg content in the A is not more than 0.44y; B is at least one element selected from the group consisting of Ta and Nb; x and y are a number of 0.49.ltoreq.x.ltoreq.0.52 and 0.15.ltoreq.y.ltoreq.0.19, respectively. This dielectric ceramic has good dielectric properties, which are markedly small in variation, and can be produced by a process which is easy in control.

Abstract: A process for producing a dielectric ceramic comprising a firing step comprises the substeps of heating a calcined product rapidly up to a temperature of from 1,500.degree. to 1,700.degree. C. and thereafter sintering the product at the temperature, and heating the product thus heat-treated through said first heat-treating substep at about 1,200.degree. C. to 1,600.degree. C. for not less than 10 minutes. It is possible to prepare a dielectric ceramic with a desired temperature properties of the resonant frequency.

Abstract: A dielectric ceramic composition possessing a high dielectric constant and a high unloaded Q and exhibiting stable electric properties even in the high frequency range of 10 GHz contains BaO, ZnO, MgO, NiO, ZrO.sub.2 and Ta.sub.2 O.sub.5 in amounts of not less than 59.0 mol % and not more than 66.0 mol % of BaO, less than 10 mol % of ZnO, less than 10 mol % of MgO, less than 10 mol % of NiO, less than 10 mol % of ZrO.sub.2, and not less than 19.0 mol % and less than 24 mol % of Ta.sub.2 O.sub.5.

Abstract: A dielectric ceramic having the composition represented by the general formula (I):Ba.sub.x A.sub.y B.sub.1-x-y F.sub.z O.sub.wwherein A is at least one selected from the group consisting of Mg, Zn, Ni and Co; B is at least one selected from Ta and Nb; x, y, and z are numbers represented by 0.48.ltoreq.x.ltoreq.0.52, 0.15.ltoreq.y.ltoreq.0.19 and 0.00025.ltoreq.z.ltoreq.0.05, respectively; and w is a number such that the total electric charges of cations of A and B and anions of F are neutralized to make the ceramic substantially neutral as a whole, and a process of preparing the dielectric ceramic. This ceramic has a high dielectric constant and unloaded Q and has a small temperature coefficient of resonance frequency.