Abstract: To provide an organic electroluminescent device having excellent durability and having high luminous efficiency and luminance, the organic electroluminescent device includes an organic compound layer containing a hole transport layer, a light emitting layer, and an electron transport layer between a pair of electrodes, wherein the hole transport layer contains a hole transport material and an electrically inactive organic compound capable of being subjected to dry film formation and having an energy difference Eg between highest occupied molecular orbital and lowest unoccupied molecular orbital of 4.0 eV or more.

Abstract: To provide an organic electroluminescent device having excellent durability and having high luminous efficiency and luminance, the organic electroluminescent device includes an organic compound layer containing at least one light emitting layer, wherein the light emitting layer contains a light emitting material and an electrically inactive organic compound capable of being subjected to dry film formation and having an energy difference Eg between highest occupied molecular orbital and lowest unoccupied molecular orbital of 4.0 eV or more.

Abstract: An organic electroluminescent device, which has, between a pair of electrodes, at least one organic layer including a light-emitting layer, in which the organic layer contains a specific tetraphenylene compound, and in which the light-emitting layer contains a phosphorescent material; and a specific tetraphenylene compound that can be used in the device.

Abstract: A dye-forming coupler of the formula (I). A silver halide photographic light-sensitive material that contains at least one dye-forming coupler of the formula (I). A method for producing an azomethine dye, which method comprises using a compound of the formula (I): wherein E is an aryl, heterocyclic, or —C(?O)W group, in which W is a nitrogen-containing heterocyclic group, Z is an aryl or heterocyclic group, and X and Y each independently are ?O, ?S or ?N—R, in which R is a substituent, with the proviso that when E is an aryl or heterocyclic group, X and Y each are ?O, and that when E is a —C(?O)W group, Z is a substituted aryl group.

Abstract: A dye-forming coupler of the formula (I). A silver halide photographic light-sensitive material that contains at least one dye-forming coupler of the formula (I). A method for producing an azomethine dye, which method comprises using a compound of the formula (I): wherein E is an aryl, heterocyclic, or —C(═O)W group, in which W is a nitrogen-containing heterocyclic group, Z is an aryl or heterocyclic group, and X and Y each independently are ═O, ═S or ═N—R, in which R is a substituent, with the proviso that when E is an aryl or heterocyclic group, X and Y each are ═O, and that when E is a —C(═O)W group, Z is a substituted aryl group.

Abstract: A ceramic capacitor has at least one dielectric layer and at least two electrodes having the dielectric layers therebetween. The dielectric layer includes a sintered body of ceramic grains containing a primary component of a perovskite crystal structure in a form of ABO3 and a ratio A/B of outer portions of the ceramic grains is greater than that of an inner portions thereof.

Abstract: A dye-forming coupler and compound of formula (I): formula (I) 1

Abstract: A ceramic capacitor has at least one dielectric layer and at least two electrodes having the dielectric layers therebetween. The dielectric layer includes a sintered body of ceramic grains containing a primary component of a perovskite crystal structure in a form of ABO3 and a ratio A/B of outer portions of the ceramic grains is greater than that of an inner portions thereof.

Abstract: A dye-forming coupler of formula (I), a silver halide photographic light-sensitive material containing the coupler, and an azomethine dye that can be derived from the dye-forming coupler: wherein Q is a group —C(—R11)═C(—R12)—SO2—; R11 and R12 bond with each other to form, together with the —C═C— moiety, a 5- to 7-membered ring, or they each represent a hydrogen atom or a substituent; R1, R3 and R4 each represent a substituent; m is an integer of 0 to 4; and X represents a hydrogen atom or a group that splits off upon a coupling reaction with an oxidized product of a developing agent; with the proviso that the following compound (I-A) is excluded from the dye-forming coupler of formula (I).

Abstract: A dye-forming coupler of the formula (I). A silver halide photographic light-sensitive material that contains at least one dye-forming coupler of the formula (I).

Abstract: A ceramic capacitor has at least one dielectric layer and at least two electrodes having the dielectric layers therebetween. The dielectric layer includes a sintered body of ceramic grains containing a primary component of a perovskite crystal structure in a form of ABO3 and a ratio A/B of outer portions of the ceramic grains is greater than that of an inner portions thereof.

Abstract: A dye-forming coupler of formula (I), a silver halide photographic light-sensitive material containing the coupler, and an azomethine dye that can be derived from the dye-forming coupler: 1

Abstract: A dye-forming coupler of the formula (I). A silver halide photographic light-sensitive material that contains at least one dye-forming coupler of the formula (I).