The present invention provides a heterocyclic compound and an organic light-emitting device including the heterocyclic compound. The organic light-emitting devices using the heterocyclic compounds have high-efficiency, low driving voltage, high luminance and long lifespan.

Organic light-emitting device

Ferrites—ceramic ferromagnetic materials—have been considered as highly important electronic materials for more than half a century. During this time, the characteristics of commercial ferrite materials, both soft and hard ferrites, have come to approach theoretical values. The quality of commercial ferrites has been improved through accumulated scientific knowledge and advanced technology. This article provides a comprehensive survey of the historical development of the science and technology of ferrite materials as well as applications of the ferrites. The article also offers a forecast of the future of ferrites in terms of their chemistry.

The Past, Present, and Future of Ferrites

One disclosed method involves using at least one device supported by a user while the user is in locomotion on foot during an outing to automatically measure amounts of time taken by the user to complete respective distance intervals. During the outing, data representing the automatically measured amounts of time may be automatically stored in memory of the least one device. Another disclosed method involves using at least one device supported by a user while the user is in locomotion on foot during an outing to automatically identify occasions on which a user completes respective distance intervals. During the outing, the at least one device may display at least one of an average pace of the user since a most recently completed distance interval, an average speed of the user since the most recently completed distance interval, and a projected time to complete a current distance interval based on monitored performance since the most recently completed distance interval. Yet another disclosed method involves using at least one device supported by a user while the user is in locomotion on foot during an outing to monitor a distance traveled by the user. An input to the at least one device may be received that specifies a goal distance for the outing, and the at least one device may determine a remaining distance to be traveled to complete one of the specified goal distance for the outing and a calculated fraction of the specified goal distance for the outing.

Monitoring activity of a user in locomotion on foot

An organic light emitting display device includes a first substrate, an array of organic light emitting pixels formed on the substrate, a second substrate opposing the first substrate. A frit seal interconnects the first and second substrates and surrounds the array of organic light emitting pixels. A film structure interposed between the second substrate and the array of organic light emitting pixels and contacts both the second substrate and the array.

Organic light emitting display and method of fabricating the same

An organic light emitting device can includes first and second metal layers used as electrodes on a substrate, an electron transport layer on the first metal layer, a first partition wall insulating the first metal layer from the second metal layer and extending onto the electron transport layer along the first metal layer, a second partition wall on the first metal layer around the electron transport layer, a third partition wall separated from the first partition wall and on the second metal layer, an organic light emitting layer on the electron transport layer, a hole transport layer on the organic light emitting layer and contacting the second metal layer, a protecting layer covering the hole transport layer and extending to the first and second metal layers beyond the second and third partition walls, and sealing materials filling spaces between the protecting layer and the first and second layers.

Organic light emitting device and method of manufacturing the same

A multilayer ceramic chip capacitor includes alternately stacked dielectric layers and internal electrode layers. The dielectric layers contain barium titanate as a major component and magnesium oxide, manganese oxide, barium oxide and/or calcium oxide, silicon oxide and optionally, yttrium oxide as minor components in such a proportion that there are present 0.1-3 mol of MgO, 0.05-1.0 mol of MnO, 2-12 mol of BaO+CaO, 2-12 mol of SiO 2 and up to 1 mol of Y 2 O 3 per 100 mol of BaTiO 3 . The capacitor satisfies the standard temperature dependence of capacitance and shows a minimized change of capacitance with time under an applied DC electric field and a long insulation resistance life. Where the dielectric layers contain 0.1-3 mol of MgO, 1-5 mol of Y 2 O 3 , 2-12 mol of BaO+CaO, and 2-12 mol of SiO 2 per 100 mol of BaTiO 3 , the capacitor shows improved DC bias performance.

Multilayer ceramic chip capacitor

A high damping material composition useful as a vibration damper and an acoustic insulating material such as a sound insulating wall for an acoustic room, a sound insulating partition for a construction structure and a soundproofing wall for a vehicle. The high damping material composition of the present invention containing the following components (A) and (B); (A) a polymer having in the molecular chain thereof a chemical structural unit derived from the following (a); (a) at least one selected from the group consisting of an acrylic monomer, a methacrylic monomer, an ethylene-acrylic copolymer, an ethylene-methacrylic copolymer and vinyl acetate; (B) at least one damping property imparting agent selected from the group consisting of a hindered phenol compound, a phosphite ester compound, a phosphate ester compound, a basic compound containing nitrogen and a hindered amine compound. The combined use of the component (A) and (B) makes an interaction therebetween homogeneous and appropriate, so that the component (B) is homogeneously dispersed in the component (A), resulting in exhibition of a high tan δ. Moreover, the homogeneous dispersion can be maintained for a long period thereby to prevent a declined of tan δ with time. The compositions have a tan δ peak temperature of approximately room temperature, which makes the compositions suitable for use in a room temperature atmosphere.

High damping material composition

The residual stress of multilayer ceramic capacitors (MLCCs) has been studied. The capacitance decreased significantly under external compressive stress applied to MLCCs in the thickness direction, on the other hand, the capacitance increased under external stress in the width direction. These capacitance changes depended on the number of dielectric layers in MLCCs. The compressive residual stress at the surface of MLCCs has been shown by X-ray diffraction (XRD) analysis. The stress increased with the number of dielectric layers in MLCCs. Moreover the tensile stress was confirmed in the thickness direction of MLCCs by XRD analysis also. Therefore the dependence of electrical characteristics dependence on the number of dielectric layers, i.e., apparent dielectric constant, temperature dependence of capacitance, and aging deterioration can be explained by the residual stress.

https://iopscience.iop.org/article/10.1143/JJAP.42.6041/pdf

Residual Stress of Multilayer Ceramic Capacitors with Ni-Electrodes (Ni-MLCCs)

Non-magnetic ferrite composition used in the composite multilayer part of the invention is based on ferrite containing Fe 2 O 3 and CuO and/or ZnO and further contains 1 to 30% by weight of four oxide components of MgO, BaO, SiO 2 , and B 2 O 3 or five or six oxide components including the four oxide components plus at least one of SnO 2 and CaO. Since the use of this non-magnetic ferrite minimizes the difference in coefficient of linear expansion between different materials used, the non-magnetic ferrite, when applied to composite multilayer parts such as shielded multilayer chip inductors, shielded multilayer transformers, and multilayer LC composite parts, prevents occurrence of cracks in the interior and avoids a lowering of circuit resistance due to precipitation of CuO, ZnO or the like at the interface between different materials. There result composite multilayer parts with improved characteristics.

Composite multilayer parts

In a ceramic multilayer chip capacitor comprising alternately stacked internal electrodes of Ni or Ni alloy and dielectric layers, an oxide layer having a different composition from the dielectric layer is formed on the periphery of each internal electrode. The dielectric layer consists essentially of grains and a grain boundary phase, the percent area of the grain boundary phase being up to 2% of the area of a cross section of the dielectric layer. The capacitor is prepared by alternately stacking Ni or Ni alloy and a dielectric material in layer form, firing and then heat treating the stack under predetermined oxygen partial pressures. The dielectric material is a barium titanate base oxide material. The capacitor has a long effective life.

Takeshi Nomura

Papers

Multilayer ceramic chip capacitor

High damping material composition

Residual Stress of Multilayer Ceramic Capacitors with Ni-Electrodes (Ni-MLCCs)

Composite multilayer parts

Ceramic multilayer chip capacitor and method for making