Abstract: A magnetic composite contains metal magnetic particles and a resin. The metal magnetic particles contain at least one Fe-containing crystalline material, and [Formula 1]Bs×?×{log(?×1/D+?×Bs+?)}{circumflex over (?)}??13T, where Bs and D are the saturation flux density in T and the median diameter of crystallites in ?m, respectively, of the crystalline material, ?=14.3, ?=?0.67, ?=752, ?=512, and ?=?815.

Abstract: Provided is a biofilm formation inhibitor causing no damage to pipes and instruments and being safe to humans. A biofilm formation inhibitor comprises at least one quinone compound selected from the group consisting of a hydroquinone substituted by a hydroxyl group or an alkyl group, a p-benzoquinone substituted by a hydroxyl group or an alkyl group and a C1 to C5 alkyl resorcinol, as an active ingredient. A biofilm formation inhibition composition comprises a quinone-based compound and a chelating agent. A method for inhibiting biofilm formation comprising adding a quinone-based compound and a chelating agent in an aqueous liquid. A biofilm formation inhibition composition comprises a quinone-based compound and an organic solvent. A method for inhibiting biofilm formation comprises adding the biofilm formation inhibition composition in an aqueous liquid.

Abstract: An inhibitor of endothelin action or a skin-whitening agent, comprising a compound represented by Formula (1) or a salt thereof as an active ingredient: wherein in Formula (1), R1 represents a formyl group or an alkyl group having 1 to 4 carbon atom(s), and R2 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atom(s).

Abstract: The invention provides a method for inhibiting dopa oxidase activity, for inhibiting melanin production, or for whitening skin using haguro-so or an organic solvent extract thereof, or a compound of formula (I):

Abstract: Provided is a composition which maintains apigenin stably. The present invention provides the composition containing apigenin at 3 ppm or more and dibutylhydroxytoluene, wherein the mass ratio of the content of apigenin relative to the content of dibutylhydroxytoluene is 1 or greater, or the pH value is less than 7. Also provided is a method for preparing an apigenin-containing composition, the method including combining 3 ppm or more of apigenin with dibutylhydroxytoluene so that the mass ratio of the content of apigenin relative to the content of dibutylhydroxytoleune is 1 or greater, or including adjusting the ph of the composition to a value less than 7.

Abstract: An inhibitor of endothelin action or a skin-whitening agent, comprising a compound represented by Formula (1) or a salt thereof as an active ingredient. wherein in Formula (1), R1 represents a formyl group or an alkyl group having 1 to 4 carbon atom(s), and R2 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atom(s).

Abstract: Use of haguro-so or an organic solvent extract thereof, or a compound represented by the following formula (I) or a salt thereof, for inhibiting a dopa oxidase activity, for inhibiting melanin production, or for whitening the skin; in the formula (I), R1 and R2, being the same or different, each represent a hydroxyl group, or a C1-4 linear or branched alkoxy group, or R1 and R2 together form a methylenedioxy group; R3 and R4, being the same or different, each represent a hydroxyl group, or a C1-4 linear or branched alkoxy group, or R3 and R4 together form a methylenedioxy group; R5 represents a hydrogen atom, a hydroxyl group, a C1-5 linear or branched alkoxy group, a C1-4 acyl group, or a sugar residue selected from the group consisting of (D-apio-?-D-furanosyl)oxy, (?-D-glucopyranosyl)oxy, (3-O,4-O-dimethyl-D-xylopyranosyl)oxy, (2-O,3-O,4-O-trimethyl-?-D-xylopyranosyl)oxy, and (3-O-methyl-?-D-glucopyranosyl)oxy; R6 and R7 are each a hydrogen atom and R8 and R9 together represent an oxygen atom, or R8 and R9

Abstract: Provided is a composition which maintains apigenin stably. The present invention provides the composition containing apigenin at 3 ppm or more and dibutylhydroxytoluene, wherein the mass ratio of the content of apigenin relative to the content of dibutylhydroxytoluene is 1 or greater, or the pH value is less than 7. Also provided is a method for preparing an apigenin-containing composition, the method including combining 3 ppm or more of apigenin with dibutylhydroxytoluene so that the mass ratio of the content of apigenin relative to the content of dibutylhydroxytoleune is 1 or greater, or including adjusting the ph of the composition to a value less than 7.

Abstract: A dopa oxidase inhibitor, a skin-lightening agent and an external preparation for skin; comprising an extract of at least one plant selected from the group consisting of Melia toosendan Sieb. et Zucc., Amomum tsao-ka Crevost et Lemaire. Senecio gracilis and Veratrum nigrum L., or a compound represented by the following Formula (1), as an active ingredient: wherein R represents an acyl group having 1 to 5 carbon atom(s).

Abstract: Singlet oxygen quenchers containing as an active component a compound represented by the following formula or (2): ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.10 and n are as described herein, and external compositions containing these compounds are provided for the prevention and treatment of various forms of damage to living bodies caused by singlet oxygen, and are thus quite useful as antiinflammation agents, anti-aging agents, agents preventing darkening of the skin, agents preventing protein denaturation, inhibitors against formation of sunburn cells, agents preventing lipid peroxidation, agents preventing DNA damage, and particularly in the fields of medicines and cosmetics as external compositions for the skin.

Abstract: The invention relates to UV absorbers and cosmetic compositions containing a naphthalenemethylenemalonic diester represented by the following formula (1): ##STR1## wherein NAP represents a naphthalene group which may optionally have a substituent, and R.sup.1 and R.sup.2 each independently represent a hydrocarbon group, an alkoxyalkyl group, or an alkoxyalkylenoxyalkyl group. The UV absorbers and the cosmetic compositions of the invention exhibit excellent ultraviolet ray absorbing action, and are stable to light.

Abstract: In the production of a decorative sheet, a synthetic resin paste is first applied onto the upper surface of a substrate sheet to form an undercoat layer. Then, one or more pastes, each being of the same material and having approximately the same viscosity as the paste of the undercoat layer, are laterally sprayed so as to drop onto the undercoat layer. The result is a smoothing phenomenon, with the pattern layer cooperating with the undercoat layer to form a smooth patterned surface. Finally, the pattern layer is heated and jelled.

Abstract: An ultraviolet ray projector comprises a reflector; a mercury lamp disposed in the reflector; a casing having one opening port which receives the reflector and the mercury lamp; a holder connected on an outer wall of the casing.The opening port of the casing has a shielding mechanism for controlling diffusion of ultraviolet rays.