Abstract: A biscarbazole derivative of the invention is represented by a formula (1) below. In the formula (1): A1 represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; A2 represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms, or substituted or unsubstituted nitrogen-containing heterocyclic group having 1 to 30 ring carbon atoms; X1 and X2 each are a linking group; Y1 to Y4 each represent a substituent; p and q represent an integer of 1 to 4; and r and s represent an integer of 1 to 3.

Abstract: The organic electroluminescence device includes an anode, a cathode, and at least an emitting layer between the anode and the cathode. The emitting layer includes a first host material, a second host material, and a phosphorescent dopant material. The first host material is a compound represented by a formula (1) below and the second host material is a compound represented by a formula (2) below.

Abstract: A carbon nanotube bonded sheet includes a fixture sheet formed from a sintered body of an inorganic material, and a carbon nanotube array sheet bonded to the sintered inorganic material of the fixture sheet.

Abstract: A cross section of a luminous flux of returning light from a disc is split into a plurality of regions, and an operation is performed so that a weighting of a light amount of a region which has favorable symmetry in a radial direction and is formed on a circumference of an ellipse among the split regions is increased. Further, a lens shift detection signal is formed, and a lens shift detection signal is canceled from a push-pull signal.

Abstract: A carbon nanotube composite material includes a fixture sheet having a front side and a back side, and a carbon nanotube array sheet embedded in or bonded to both front and back sides of the fixture sheet.

Abstract: Provided are a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin layer comprising a single layer or plural layers including a light emitting layer is interposed between a cathode and an anode, wherein at leas one layer of the above organic thin layer contains the aromatic amine derivative described above in form of a single component or a mixed component. Thus, the organic electroluminescence device is less liable to be crystallized in molecules, improved in a yield in producing the organic electroluminescence device and extended in a lifetime.

Abstract: Provided are a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin layer comprising a single layer or plural layers including a light emitting layer is interposed between a cathode and an anode, wherein at leas one layer of the above organic thin layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Thus, the organic electroluminescence device is less liable to be crystallized in molecules, improved in a yield in producing the organic electroluminescence device and extended in a lifetime.

Abstract: A biscarbazole derivative having a specific group, which is represented by formula (1): and an organic electroluminescence device in which a plurality of organic thin-film layers including a light emitting layer are disposed between a cathode and an anode, and at least one of the organic thin-film layers include the biscarbazole derivative. The organic electroluminescence device exhibits high emission efficiency and has a long lifetime. In formula (1), each of A1 and A2 independently represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms; each of Y1 to Y16 independently represents C(R) or a nitrogen atom; each of R groups independently represents a hydrogen atom, etc.; and each of L1 and L2 independently represents a single bond, etc.; provided that at least one of A1, A2 and R represents a substituted or unsubstituted fluoranthenyl group, etc.

Abstract: A biscarbazole derivative having a specific group, which is represented by formula (1): and an organic electroluminescence device in which a plurality of organic thin-film layers including a light emitting layer are disposed between a cathode and an anode, and at least one of the organic thin-film layers include the biscarbazole derivative. The organic electroluminescence device exhibits high emission efficiency and has a long lifetime. In formula (1), each of A1 and A2 independently represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 ring carbon atoms; each of Y1 to Y16 independently represents C(R) or a nitrogen atom; each of R groups independently represents a hydrogen atom, etc.; and each of L1 and L2 independently represents a single bond, etc.; provided that at least one of A1, A2 and R represents a substituted or unsubstituted fluoranthenyl group, etc.

Abstract: The organic electroluminescence device includes an anode, a cathode, and at least an emitting layer between the anode and the cathode. The emitting layer includes a first host material, a second host material, and a phosphorescent dopant material. The first host material is a compound represented by a formula (1) below and the second host material is a compound represented by a formula (2) below.

Abstract: A cross section of a luminous flux of returning light from a disc is split into a plurality of regions, and an operation is performed so that a weighting of a light amount of a region which has favorable symmetry in a radial direction and is formed on a circumference of an ellipse among the split regions is increased. Further, a lens shift detection signal is formed, and a lens shift detection signal is canceled from a push-pull signal.

Abstract: A method for producing a carbon nanotube web includes a step of preparing a carbon nanotube array disposed on a substrate, the carbon nanotube array including a plurality of carbon nanotubes vertically aligned relative to the substrate; and a step of drawing a carbon nanotube web from the carbon nanotube array, the carbon nanotube web including a plurality of carbon nanotube single yarns arranged in parallel in a direction intersecting the direction carbon nanotube single yarns extend, and the carbon nanotube single yarns including a plurality of continuously connected carbon nanotubes. In the step of drawing a carbon nanotube web, the drawing position of the carbon nanotube web from the carbon nanotube array is kept at the same position in the drawing direction of the carbon nanotube web.

Abstract: An aromatic amine derivative represented by the following formula (1). In the formula, Ar1 and Ar2 are independently a substituted or unsubstituted aryl group including 6 to 60 ring carbon atoms; L1 is a substituted or unsubstituted arylene group including 6 to 60 ring carbon atoms; L2 is a single bond or a substituted or unsubstituted arylene group including 6 to 60 ring carbon atoms; R1 and R2 are independently a substituted or unsubstituted aryl group including 6 to 60 ring carbon atoms or the like; n is an integer of 0 to 3; m is an integer of 0 to 4; X1 to X5 are independently a nitrogen atom or CR3; provided that at least one of X1 to X5 are a nitrogen atom; R3 is a hydrogen atom, a substituted or unsubstituted aryl group including 6 to 60 ring carbon atom or the like.

Abstract: A method for manufacturing a carbon nanotube collected product, comprising the steps of: preparing a roller comprising a shaft having a cylindrical shape and a resin film located over an entire circumference of the shaft preparing a plurality of carbon nanotube yarns each having a plurality of carbon nanotubes; arranging the plurality of carbon nanotube yarns in parallel and along a direction an axis of the shaft extends, and drawing the plurality of carbon nanotube yarns in a circumferential direction of the shaft such that they are located on the resin film; supplying a volatile liquid to the plurality of carbon nanotube yarns located on the resin film; and processing the plurality of carbon nanotube yarns to which the liquid has been supplied.

Abstract: A carbon nanotube sheet includes a carbon nanotube layer containing numerous vertically aligned carbon nanotubes and a fibrous carbonized layer that retains the proximal end portions of the carbon nanotubes. The carbon nanotube layer is configured such that the proximal end portions and distal end portions of the carbon nanotubes are inclined and the intermediate portions of the carbon nanotubes are entangled with one another.

Abstract: A method for manufacturing a carbon nanotube fiber, the method comprising: preparing a core material—extending in a predetermined direction; preparing a carbon nanotube array comprising a plurality of carbon nanotubes aligned on a substrate and oriented vertically to the substrate; preparing a carbon nanotube untwisted yarn comprising the plurality of continuously connected carbon nanotubes by drawing the carbon nanotube untwisted yarn from the carbon nanotube array; and winding the carbon nanotube untwisted yarn around the core material.

Abstract: Provided are an organic electroluminescence device having high current efficiency and a long lifetime, and a biscarbazole derivative for realizing the device. The biscarbazole derivative has a specific substituent. The organic EL device has a plurality of organic thin-film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin-film layers contains the biscarbazole derivative.

Abstract: A numerical controller capable of reducing labor of an operator's operation in measuring a workpiece controls a machine tool equipped with an imaging device capable of outputting three-dimensional coordinates of a designated position in a captured image and a measuring instrument measuring physical quantity concerning a shape of the installed workpiece.

Abstract: Provided are an organic electroluminescence device having high current efficiency and a long lifetime, and a biscarbazole derivative for realizing the device. The biscarbazole derivative has a specific substituent. The organic EL device has a plurality of organic thin-film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin-film layers contains the biscarbazole derivative.

Abstract: An organic electroluminescence device 1 includes: an anode 3, a cathode 4 opposed to the anode 3 and an emitting layer 5 provided between the anode 3 and the cathode 4. The emitting layer 5 contains first and second host materials and a luminescent material. The first host material has a partial structure represented by at least one of the following formulae (1) and (2) while the second host material has a partial structure represented by the following formula (3). Az represents a substituted or unsubstituted aromatic heterocyclic group containing a nitrogen-containing six-membered ring. WCN is an aromatic hydrocarbon group substituted by at least one cyano group (CN) or an aromatic heterocyclic group substituted by at least one cyano group (CN). Ar1 is a substituted or unsubstituted aromatic hydrocarbon group or a substituted or unsubstituted aromatic heterocyclic group, but is not an aromatic heterocyclic group containing a nitrogen-containing six-membered ring.