Abstract: A secondary battery including a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes a carbon material electrochemically capable of absorbing and releasing lithium ions, and a solid electrolyte covering at least part of a surface of the carbon material and having lithium ion conductivity. The solid electrolyte includes a first compound represented by a general formula: LixM1Oy, where 0.5<x?9, 1?y<6, and the M1 includes at least one element selected from the group consisting of B, Al, Si, P, Ti, V, Zr, Nb, Ta, and La. The electrolytic solution includes a solvent and a lithium salt, and the solvent contains at least water.

Abstract: This lithium transition metal composite oxide, which configures a secondary battery positive electrode active material, is a composite oxide represented by general formula Li?[LixMnyCozMe(1-x-y-z)]O2 (in the formula, Me is at least one species selected from Ni, Fe, Ti, Bi and Nb, and 0.5<?<1, 0.05<x<0.25, 0.4<y<0.7, and 0<z<0.25), and has at least one crystal structure selected from the O2 structure, the T2 structure and the O6 structure. The ratio (Co2/Co1) of the Co molar fraction (Co2) in the surface of the oxide to the Co molar fraction (Co1) in the entire lithium transition metal composite oxide is 1.2<(Co2/Co1)<6.0.

Abstract: Provided are a material that achieves higher sensitivity and higher resolution of a photoelectric conversion element for imaging, and a photoelectric conversion element for imaging using the above material. A material for a photoelectric conversion element for imaging, the material having a structure of the following general formula (1), wherein L each independently represents a single bond, an aromatic hydrocarbon group having 6 to 30 carbon atoms, or the like; “a” represents the number of substitutions, and represents an integer of 1 to 6; Ar1 each independently represents a group represented by the following formula (2); and Ar2 each independently represents an aromatic heterocyclic group having 3 to 30 carbon atoms and containing a nitrogen-containing six-membered cyclic structure, or the like, provided that a group bonded to L is the aromatic heterocyclic group.

Abstract: Provided are a material that achieves higher sensitivity and higher resolution of a photoelectric conversion element for imaging, and a photoelectric conversion element for imaging using the above material. The material for a photoelectric conversion element for imaging includes an indolocarbazole compound having a pentacyclic fused-ring structure having two heteroatoms, or an analogue compound thereof. The material is a compound having, as a group bonded to a nitrogen atom or a heteroatom, an alkyl group, a substituted or non-substituted aromatic hydrocarbon group, a substituted or non-substituted ?-electron excess heteroaromatic group, or a linked aromatic group formed by linking of two to six of these aromatic groups.

Abstract: Provided are an emission material and an organic EL device including the emission material and having high emission efficiency and a long lifetime. An organic EL device comprising light emitting layers between an anode and a cathode opposite to each other; wherein at least one of the light emitting layers contains, as a light emitting dopant, a compound in which a backbone having a specific 5-ring-fused ring structure, and a boron atom are combined, and the compound is represented by the following general formula (1).

Abstract: Provided is a thermally activated delayed fluorescent organic electroluminescent device having a low driving voltage, high luminous efficiency, and a long lifetime. The organic electroluminescent device includes light-emitting layers between an anode and a cathode opposite to each other, and at least one of the light-emitting layers contains a thermally activated delayed fluorescent material, or the thermally activated delayed fluorescent material and a host material. The thermally activated delayed fluorescent material is represented by the following general formula (1) where A represents an electron-withdrawing group, such as a CN group, and D1 and D2 each represent an electron-donating group having an indole ring structure.

Abstract: Provided is a thermally activated delayed fluorescence organic EL device having high emission efficiency and a long lifetime. An organic EL device comprising light emitting layers between an anode and a cathode opposite to each other; wherein at least one of the light emitting layers contains, as a thermally activated delayed fluorescence material, a compound in which a boron-containing electron acceptor backbone is linked with an electron donor backbone having a specific fused ring structure; and the compound is represented by the following general formula (1) where X1 is O or S.

Abstract: To provide an organic electroluminescent device having long lifetime characteristics while having a low driving voltage and high power efficiency. The organic electroluminescent device includes one or more light-emitting layers between an anode and a cathode opposed to each other, wherein at least one of the light-emitting layers contains a host material including a first host material, a second host material and a third host material, and a light-emitting dopant material. A LUMO energy of the first host material is ?1.95 eV or less, and LM2?LM3?LM1 is satisfied under the assumption that LUMO energies of the first host material, the second host material and the third host material are LM1, LM2 and LM3, respectively.

Abstract: Apparatus for manufacturing a non-woven fabric includes a diffusing shaft, which includes a first shaft portion in a defined location and provided with a slit-shaped air guide, wherein filaments are supplied together with air from an inlet side of the air guide to an outlet side of the air guide; a second shaft portion in a defined location, having an inlet side that is communicated with an outlet side of the first shaft portion and an outlet side that is disposed to face a filament collecting unit, wherein an opening width along a machine direction of the inlet side of the second shaft portion is larger than an opening width along a machine direction of the first shaft portion; and a stepped portion provided at a connecting portion between the outlet side of the first shaft portion and the inlet side of the second shaft portion and connecting the same.

Abstract: Apparatus for manufacturing a non-woven fabric includes a diffusing shaft, which includes a first shaft portion in a defined location and provided with a slit-shaped air guide, wherein filaments are supplied together with air from an inlet side of the air guide to an outlet side of the air guide; a second shaft portion in a defined location, having an inlet side that is communicated with an outlet side of the first shaft portion and an outlet side that is disposed to face a filament collecting unit, wherein an opening width along a machine direction of the inlet side of the second shaft portion is larger than an opening width along a machine direction of the first shaft portion; and a stepped portion provided at a connecting portion between the outlet side of the first shaft portion and the inlet side of the second shaft portion and connecting the same.

Abstract: A diffusing unit of an apparatus for manufacturing a non-woven fabric is provided with a diffusion space between a jet nozzle and a moving belt of a collecting unit, an opening of a sub nozzle is arranged side-by-side with an opening of the jet nozzle, and the sub nozzle jets air from the opening. The jet nozzle jets, toward the moving belt, plural filaments together with air. The air jetted from the jet nozzle forms a conveying flow that gradually spreads and flows in the diffusion space, and the plural filaments are diffused by this conveying flow and are sent toward the moving belt to be collected. The air jetted from the sub nozzle flows along the air flow around the conveying flow and suppresses air in the diffusion space from entering the conveying flow.

Abstract: Provided is a thermally activated delayed fluorescent organic electroluminescent device having a low driving voltage, high luminous efficiency, and a long lifetime. The organic electroluminescent device includes light-emitting layers between an anode and a cathode opposite to each other, and at least one of the light-emitting layers contains a thermally activated delayed fluorescent material, or the thermally activated delayed fluorescent material and a host material. The thermally activated delayed fluorescent material is represented by the following general formula (1) where A represents an electron-withdrawing group, such as a CN group, and D1 and D2 each represent an electron-donating group having an indole ring structure.

Abstract: Provided are a material for an organic electroluminescent device showing excellent electron- and hole-injecting/transporting properties, and having proper lowest singlet excitation energy and proper lowest triplet excitation energy, and an organic EL device using the material.

Abstract: Provided are an organic semiconductor material having a high charge mobility, oxidation stability, and solvent solubility, an organic semiconductor device using the same, and a novel aromatic heterocyclic compound to be used for the same and a production method therefor. The aromatic heterocyclic compound is represented by the following general formula (1), has two heteroatoms, and has a structure in which six rings are fused. In the formula, X represents an oxygen atom or N—R, and R represents hydrogen or a monovalent substituent. The organic semiconductor material contains the aromatic heterocyclic compound, and is used for an organic semiconductor film or an organic device, such as an organic thin-film transistor or an organic photovoltaic device.

Abstract: Provided are a semiconductor material for an organic transistor having a high charge mobility, solvent solubility, oxidation stability, and satisfactory film formability, and an organic thin-film transistor using the semiconductor material. The organic semiconductor material for an organic transistor is a seven-ring-fused heterocyclic compound having benzene rings at both ends, and having, therebetween, rings of a structure in which benzene rings A and pyrrole rings B are fused in the order of A-B-A-B-A. The fused heterocyclic compound may be substituted with an alkyl group, an alkenyl group, an alkynyl group, or an aromatic group. In addition, the organic thin-film transistor includes a semiconductor layer using the compound.

Abstract: Provided are an organic semiconductor material having a high charge mobility, oxidation stability, and solvent solubility, an organic semiconductor device using the same, and a novel aromatic heterocyclic compound to be used for the same and a production method therefor. The aromatic heterocyclic compound is represented by the following general formula (1), has two heteroatoms, and has a structure in which six rings are fused. In the formula, X represents an oxygen atom or N—R, and R represents hydrogen or a monovalent substituent. The organic semiconductor material contains the aromatic heterocyclic compound, and is used for an organic semiconductor film or an organic device, such as an organic thin-film transistor or an organic photovoltaic device.

Abstract: Provided are a semiconductor material for an organic transistor having a high charge mobility, solvent solubility, oxidation stability, and satisfactory film formability, and an organic thin-film transistor using the semiconductor material. The organic semiconductor material for an organic transistor is a seven-ring-fused heterocyclic compound having benzene rings at both ends, and having, therebetween, rings of a structure in which benzene rings A and pyrrole rings B are fused in the order of A-B-A-B-A. The fused heterocyclic compound may be substituted with an alkyl group, an alkenyl group, an alkynyl group, or an aromatic group. In addition, the organic thin-film transistor includes a semiconductor layer using the compound.

Abstract: Fluorescence-emitting material which improves luminous efficiency of an organic light-emitting element such as an organic EL element or an organic PL element and an organic light-emitting element using the fluorescence-emitting material. The fluorescence-emitting material includes a compound having an indolocarbazole skeleton represented by the following general formula (1), as defined in the specification. The organic light-emitting element includes an organic EL element including: a substrate; an anode; a cathode; and a light-emitting layer, the anode and the cathode being laminated on the substrate and the light-emitting layer being sandwiched between the anode and the cathode, in which the light-emitting layer includes: the organic light-emitting material; and as a host material, an organic compound having excited triplet energy higher than that of the organic light-emitting material.

Abstract: Fluorescence-emitting material which improves luminous efficiency of an organic light-emitting element such as an organic EL element or an organic PL element and an organic light-emitting element using the fluorescence-emitting material. The fluorescence-emitting material includes a compound having an indolocarbazole skeleton represented by the following general formula (1), as defined in the specification. The organic light-emitting element includes an organic EL element including: a substrate; an anode; a cathode; and a light-emitting layer, the anode and the cathode being laminated on the substrate and the light-emitting layer being sandwiched between the anode and the cathode, in which the light-emitting layer includes: the organic light-emitting material; and as a host material, an organic compound having excited triplet energy higher than that of the organic light-emitting material.

Abstract: Provided are a nitrogen-containing aromatic heterocyclic compound useful as an organic semiconductor material and an organic electronic device using this compound. The nitrogen-containing aromatic heterocyclic compound has a fused indole skeleton represented by the following formula (1), the organic semiconductor material contains the compound, and the organic electronic device uses the organic semiconductor material. In general formula (1), X is N-A?, O, S, or Se; A is an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aromatic hydrocarbon group, or an aromatic heterocyclic group exclusive of a fused heterocycle consisting of 4 rings or more; and R is a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aromatic hydrocarbon group, or an aromatic heterocyclic group exclusive of a fused heterocycle consisting of 4 rings or more.