Abstract: A method of manufacturing an organic electroluminescent display panel includes the steps of: forming first electrodes on the substrate; forming organic layers by deposition; forming different light emitting layers for different luminous colors in desired areas; and forming second electrodes; wherein the organic layers are formed by an angle deposition method which performs deposition at more than a predetermined angle to the normal of the substrate.

Abstract: A display panel using an organic electroluminescent material, includes: a substrate; a plurality of first type electrodes formed on the surface of one side of the substrate; a plurality of electrically insulating partition walls partially covering the first type electrodes; a plurality of organic electroluminescent layers formed on exposed portions of the first type electrodes; a plurality of second type electrodes formed on the organic electroluminescent layers; and a protection layer formed on the above one side of the substrate to cover and seal up the first type electrodes, the electrically insulating partition walls, the organic electroluminescent layers, and the second type electrodes. In particular, the protection layer has a plurality of openings each of which is formed adjacent to a side face of a partition wall so as to partially expose the side face.

Abstract: An agent for inhibiting an accumulation of visceral fat is disclosed which comprises an amylase inhibitor of wheat origin as an active ingredient. The agent is effective for inhibiting the accumulation of visceral fat in the viscus, thus preventing the visceral fat obesity which may be one of the causes of adult diseases.

Abstract: An amylase inhibitor consisting of a protein constructed of 244 amino acid residues having two subunits each identified as SEQ ID NO:1, in which a single band is observed at a mobility of 0.26 by polyacrylamide gel electrophoresis, and having a high inhibitory activity against human pancreatic .alpha.-amylase to inhibit an increase in blood glucose level, control an insulin secretion or maintain the duration in a feeling of satiety for diet. The amylase inhibitor can be used alone or in combination with other known amylase inhibitors.

Abstract: An organic electroluminescent device comprises an anode, a positive-hole transport layer, an emitting layer, (an electron transport layer) and a cathode which are layered in sequence, wherein the emitting layer (and/or the electron transport layer) comprises at least one of dioxazine compounds or diazine compounds. The emitting capability of the organic electroluminescent device is improved in luminance and efficiency upon application of a low voltage.

Abstract: An amylase inhibitor consisting essentially of a protein constructed of 248 amino acid residues having two subunits, each identified as SEQ ID NO:1, in which a single band is observed at a mobility of 0.26 by polyacrylamide gel electrophoresis. The amylase inhibitor can be extracted from wheat and purified by absorption on a cation exchange resin. It is useful for inhibiting an increase in blood glucose level, controlling insulin secretion, suppressing appetite, and as a food additive. The new amylase inhibitor can be used in combination with a protein composed of two subunits, each identified as SEQ ID NO:2, the total content of both proteins being not less than 20% by weight.

Abstract: A process of producing an amylase inhibitor from an amylase inhibitor-containing solution extracted from wheat flour, etc with water, a dilute acid, a dilute alkali or from an amylase inhibitor-containing starch waste solution, by utilization of an adsorption of the amylase inhibitor on a calcium phosphate gel, while removing impure proteins contained in the solution. The process can produce in economy and high yields the amylase inhibitor having a very high amylase inhibitory activity but no or very little trypsin inhibitory activity.

Abstract: An organic electroluminescent device comprises an anode, a positive-hole transport layer of organic compound, an emitting layer of organic compound, and a cathode which are laminated in sequence, wherein the emitting layer comprises a pyrimidopyrimidine derivative. This device emits with a high luminance and high emission efficiency.

Abstract: A process for the preparation of an amylase inhibitor is disclosed which comprises the steps of:(a) extracting wheat, wheat flour or wheat gluten with water, a dilute acid, a dilute alkali or an aqueous alcohol to produce a solution containing the amylase inhibitor;(b) adding a polysaccharide to said solution to form an insoluble complex of the amylase inhibitor with the polysaccharide and separating the insoluble complex from the solution;(c) dissolving or dispersing said complex in a solution, then separating the polysaccharide from the solution to collect a solution containing the amylase inhibitor; and(d) treating the collected solution with a cation exchanger to recover the amylase inhibitor from fractions that have not been adsorbed on the cation exchanger.

Abstract: An organic electroluminescent device which includes a cathode, an organic emitting layer which includes a quinoline derivative and a quinacridone or quinazoline compound, an organic positive hole transport layer, and an anode, laminated in sequence, has a high emission efficiency and a high color purity of light emitted from the EL device.

Abstract: Electroluminescent device with improved luminous efficiency, where a fluorescent emitting layer and a positive-hole transporting layer are layered on each other and arranged between a cathode and an anode, the two layers comprising organic compounds and the fluorescent emitting layer being composed of quinoline derivative as a host material, characterized by containing in the fluorescent emitting layer, as a guest material, a quinacridone compound of the following formula (A); ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen, methyl group or chlorine or the dehydro form of the quinacridone compound.

Abstract: The electroluminescent element of the present invention comprises a fluorescent substance layer containing a courmarinic or azacoumarinic derivative and a hole transport layer, both made of organic compounds and laminated on top of the other. The both layers are interposed between cathode and anode electrodes. It emits light efficiently at a high luminance upon application of a low voltage between the electrodes.