Abstract: Provided by the present invention are a fine crystallite high-function metal alloy member, a method for manufacturing the same, and a business development method thereof, in which a crystallite of a metal alloy including a high-purity metal alloy whose crystal lattice is a face-centered cubic lattice, a body-centered cubic lattice, or a close-packed hexagonal lattice is made fine with the size in the level of nanometers (10?9 m to 10?6 m) and micrometers (10?6 m to 10?3 m), and the form thereof is adjusted, thereby remedying drawbacks thereof and enhancing various characteristics without losing superior characteristics owned by the alloy.

Abstract: Disclosed is a composition containing a specific oligosaccharide and a bivalent metal cation, which exhibits an effect on the amelioration, treatment or prevention of allergy or topical inflammatory reactions in an extremely safe and effective manner compared to synthetic oral steroid medicines in spite of a fact that the composition contains components that are generally familiar as a food or an ion occurring in living bodies and have no toxicity against living bodies when used at physiological concentrations. Specifically disclosed is a cell-cell adhesion enhancer in epithelial cells, which comprises 1-kestose and/or nystose and a bivalent metal cation as active ingredients.

Abstract: A highly safe, inexpensive and widely utilizable method, which has a mechanism backed by scientific grounds, for improving an activity of ROS (reactive oxygen species)-scavenging enzyme group; An increase in the amount of an enzyme or promotion of an enzyme activity of the ROS scavenging enzyme group such as superoxide dismutase, catalase or peroxidase is caused in an organism having the ROS-scavenging enzyme with one or two or more kinds of substances selected from the group consisting of erythritol, mannitol, sorbitol and xylitol in 0.01-10% administration concentration.

Abstract: An object of the present invention is to provide a growth promoting agent and a life prolonging agent which are safer than a conventional one, and can be used for stable and effective production of animals including farm animals, domestic fowls and fishes/shellfishes, stable and effective cultivation of plants including vegetables, fruits and grains, stable and effective culture of microorganisms, and stable and effective cultivation of mushrooms. The present invention provides the growth promoting agent comprising a sugar alcohol, particularly erythritol, as an active ingredient and a life prolonging agent comprising a sugar alcohol, particularly erythritol, as an active ingredient.

Abstract: A method of manufacturing a hard precious metal alloy member comprising casting a material consisting essentially of a gold alloy, which has a gold content of from 37.50 to 98.45 wt %, and contains gadolinium in an amount of not less than 50 ppm, but less than 1,5000 ppm; subjecting the material to a solution heat treatment; and subjecting the material to an aging treatment after the solution heat treatment.

Abstract: A method of manufacturing a hard precious metal alloy member comprising casting a material consisting essentially of a gold alloy, which has a gold content of from 37.50 to 98.45 wt %, and contains gadolinium in an amount of not less than 50 ppm, but less than 1,5000 ppm; subjecting the material to a solution heat treatment; and subjecting the material to an aging treatment after the solution heat treatment.

Abstract: A hard precious metal alloy member is constituted of a gold alloy, which has a gold Au content of from 37.50 to 98.45 wt %, and contains a hardening additive in a range of not less than 50 ppm but less than 15,000 ppm, wherein the hardening additive is constituted of gadolinium Gd only, or gadolinium Gd and at least one element selected from the group consisting of rare-earth elements other than Gd, alkaline-earth elements, silicon Si, aluminum Al, and boron B.

Abstract: A hard precious metal alloy member is constituted of a gold alloy, which has a gold Au content of from 37.50 to 98.45 wt %, and contains a hardening additive in a range of not less than 50 ppm but less than 15,000 ppm, wherein the hardening additive is constituted of gadolinium Gd only, or gadolinium Gd and at least one element selected from the group consisting of rare-earth elements other than Gd, alkaline-earth elements, silicon Si, aluminum Al, and boron B.

Abstract: A process for producing a hard high purity gold alloy comprising (a) casting a high purity gold alloy consisting essentially of from 50 to 3000 ppm Gd and balance being gold, the gold having a purity of at least 99.7%, (b) solution treating the alloy at a temperature above 700.degree. C., and (c) aging the alloy at a temperature of 150 to 350.degree. C.

Abstract: A method of manufacturing a high-purity gold alloy for making an electronic member, a dental member or a decorative member. The method includes subjecting a high-purity gold alloy having a Gd content of 1 to 49.9 ppm contained in 99.98 weight % or more gold to a solution heat treatment in which the elements of the high-purity gold alloy are uniformly dispersed at a temperature higher than a solubility curve and then rapidly cooled, and then to an age hardening treatment, before or after a working process for working the high-purity gold alloy into a desired line shape or other desired shape. The age hardening treatment can be performed if the working process is not carried out.

Abstract: A high-purity hard gold alloy containing 50 ppm or more of Gd and one or more of other additional elements in Au having a purity of 99.7% by weight or more, such that a total content of the additional elements is 100 to 3000 ppm. The high-purity gold alloy can be hardened to a level approximately equivalent to that of 18-karat gold at a relatively low working ratio, and the high-purity gold alloy thus hardened is not extremely softened by a heat treatment performed as a post-treatment, such as brazing or welding.

Abstract: A magnetic recording medium having finely divided magnetic metal oxide particles dispersed in a thermosetting resin binder and a thickness of no greater than 5 microns is provided. The thermosetting resin binder comprises: (a) 30 to 95 wt.% of a copolymer of 25 to 65 wt.% of alkyl acrylate or alkyl methacrylate, 3 to 30 wt.% of N-methylolacrylamide or N-alkoxymethylacrylamide and 10 to 60 wt.% of styrene or a methyl styrene, (b) 5 to 70 wt.% of an epoxy resin predominantly comprised of a condensation product of bisphenol A and epihalohydrin, and; (c) 0 to 50 wt.% of phenolic resin or amino resin. The magnetic recording medium is superior in abrasion resistance, solvent resistance and dispersion of the magnetic material therein, and possesses improved recording density.