Abstract: Disclosed is a novel solid catalyst having high catalytic activity, a method for producing the solid catalyst, and a catalytic reaction using the solid catalyst. A disclosed surface-modified halloysite is a halloysite having a carboxy group-containing group or a sulfo group-containing group on the surface thereof.

Abstract: Provided is a composite body that includes halloysite powder including a granule in which halloysite including a halloysite nanotube is aggregated, and a transition metal catalyst carried in the halloysite powder. The granule preferably includes a first pore derived from a tube hole of the halloysite nanotube, and a second pore different from the first pore. The transition metal catalyst preferably includes at least one element selected from the group consisting of iron, ruthenium, cobalt, nickel and silver.

Abstract: A metal powder capable of producing a dust core having a high saturation magnetic flux density, excellent rust resistance, and a low iron loss. The metal powder includes from 1.0% to 15.0% of Si, from 1.0% to 13.0% of Cr, from 10 ppm to 10000 ppm of Cl, from 100 ppm to 10000 ppm of S (sulfur), and from 0.2% to 7.0% of O (oxygen) by mass concentration, the remainder including Fe and unavoidable impurities, in which the average particle diameter of the metal powder is from 0.1 ?m to 2.0 ?m. This facilitates the production of a dust core having a high magnetic flux density, excellent rust resistance, and a low iron loss.

Abstract: Provided is halloysite powder including a granule in which halloysite including halloysite nanotubes and titanium oxide are aggregated. The granule includes a first pore derived from a tube hole of the halloysite nanotubes, and a second pore different from the first pore.

Abstract: Provided is halloysite powder having a small b value. The halloysite powder is powder including a granule in which halloysite including halloysite nanotubes is aggregated, the granule has a first pore deriving from a tube hole of the halloysite nanotubes and a second pore different from the first pore, and the Fe2O3 content is not more than 2.00 mass %.

Abstract: Provided is a bone regenerative agent which can repair a bone defect site with preventing from remaining at the bone defect site. The bone regenerative agent comprises zinc subcarbonate containing hydrozincite. It is preferred that the zinc subcarbonate has a Zn2+ ion elution amount of 0.1 ppm by mass or more after an elution test and also has a pH value of 7.2 or more and less than 8.3 after an elution test. It is preferred that some carbonate ions in the hydrozincite are substituted by sulfate ions or chloride ions. It is preferred that the bone regenerative agent is applied to a bone defect site.

Abstract: Focusing on zinc oxide itself, which is a main raw material for a zinc oxide varistor (laminated varistor), a predetermined amount of additive is added to a zinc oxide powder having crystallite size of 20 to 100 nm, particle diameter of 20 to 110 nm found using a specific area BET method, untamped density of 0.60 g/cm3 or greater, and tap density of 0.80 g/cm3 or greater. This allows a zinc oxide sintered body to secure uniformity, high density, and high electric conductivity, resulting in a zinc oxide varistor with high surge resistance, capable of downsizing and cost reduction. Moreover, addition of aluminum (Al), as a donor element, to the zinc oxide powder allows control of sintered grain size in conformity with the aluminum added amount and baking temperature, and also allows adjustment of varistor voltage, etc.

Abstract: Focus is on zinc oxide itself, which is a base material for a zinc oxide varistor (laminated varistor), wherein specified quantities of additives are added to a zinc oxide powder having a crystallite size of 20 to 50 nm, grain diameter of 15 to 60 nm found using the specific surface area BET method, untamped density of 0.38 to 0.50 g/cm3, and tap density of 0.50 to 1.00 g/cm3. This allows securing of uniformity, high compactness, and high electrical conductivity of a zinc oxide sintered body, and provision of a zinc oxide varistor having high surge resistance.

Abstract: A precursor of a positive electrode material with which it is possible to obtain a lithium-ion secondary cell having an excellent discharge capacity and cycle characteristics, and a method for manufacturing the precursor. The precursor is a precursor of a positive electrode material used for a lithium-ion secondary cell, wherein the precursor is at least one substance selected from the group made of nickel-manganese composite hydroxides and nickel-manganese composite oxides, the precursor contains nickel and manganese, the ratio of the nickel content relative to the nickel content and the manganese content is 0.45-0.60 inclusive in molar ratio, and the average valence of manganese is below 4.0.

Abstract: A positive electrode active material for a lithium-ion secondary cell having exceptional lithium ion conductivity, the positive electrode active material being such that the absorption of moisture from the atmosphere can be suppressed. This positive electrode active material for a lithium-ion secondary cell has powder particles that include a specific composite oxide, and an organic silicon compound affixed to the surface of the powder particles, the organic functional groups of the organic silicon compound including at least one selected from the group made of C2-10 alkyl groups and C6-14 aryl groups.

Abstract: Provided is a method for producing a single crystal, wherein compositional variations and defects in the single crystal can be prevented and a single crystal having uniform characteristics in the growth direction can be produced at high yield. In this method for producing a single crystal, a PbTiO3-containing single crystal is produced by the vertical Bridgman technique, wherein the thickness of a melt layer containing the melt in a crucible is at least 30 mm.

Abstract: Provided are a halloysite powder and a method for producing the halloysite powder. The halloysite powder contains granules in which halloysite including halloysite nanotubes is aggregated. The granules have first pores derived from the tube holes in the halloysite nanotubes and second pores that are different from the first pores.

Abstract: A method for producing a piezoelectric single crystal ingot shows small variation in the concentration of PbTiO3 in the growth direction of single crystal. A complete solid solution-type piezoelectric single crystal ingot is produced by using the Bridgman method, including: filling a starting material, wherein a relaxor having a compositional formula Pb(B1, B2)O3 is blended with lead titanate having a composition PbTiO3 to give a preset composition, into a crucible for growth; heating to the melting temperature to give a melted liquid layer; then moving the crucible for growth toward the low temperature side; and thus starting one-direction solidification from the lower part of the crucible to thereby produce a single crystal. During solidification, the feedstock containing the relaxor and lead titanate having a maximum grain size ?3 mm is continuously supplied into the crucible.

Abstract: Provided are a novel metahalloysite powder and a production method thereof, which are not present in the prior art. The metahalloysite powder is a powder which comprises granules of aggregated metahalloysite comprising metahalloysite nanotubes, which are tube-shaped metahalloysite. The production method comprises a step of preparing a halloysite slurry which comprises halloysite nanotubes, a step for formulating a powder from the slurry, and a step for firing the formulated powder at a firing temperature of 500° C. or above.

Abstract: The present invention provides a novel material using a meta-halloysite that does not exist prior art, and a production method therefor. The meta-halloysite powder of the present invention is characterized in that: the meta-halloysite is covered by elemental carbon; the meta-halloysite contains elemental carbon; the meta-halloysite powder is a powder containing granules formed by the aggregation of meta-halloysite comprising meta-halloysite nanotubes covered by elemental carbon; or the meta-halloysite powder is powder containing granules formed by the aggregation of meta-halloysite comprising meta-halloysite nanotubes, which are tubular meta-halloysite, wherein the meta-halloysite contains elemental carbon.

Abstract: Provided is a low-cost, easy-to-handle, effective therapeutic agent for wounds that is a therapeutic agent for skin wounds or rough skin that includes at least one selected from the group consisting of zinc chloride, zinc hydroxide, and zinc oxide and may include a pharmaceutically acceptable carrier.

Abstract: An inorganic composition that is useful as an active ingredient for pharmaceuticals and has excellent stability comprises hydrozincite-containing zinc carbonate hydroxide hydrate produced by drying a precipitate. The precipitate is obtained by adding aqueous zinc nitrate solution, aqueous zinc sulfate solution or aqueous zinc chloride solution and aqueous sodium hydroxide solution dropwise to aqueous sodium hydrogen carbonate solution, a pH of the aqueous sodium hydrogen carbonate solution being maintained within a range of 6.5 to 9 by means of a pH controller. The hydrozincite-containing zinc carbonate hydroxide hydrate has an amount of dissolved Zn2+ ions of not less than 0.1 ?g/m2 but not more than 7.33 ?g/m2 and pH of not less than 7.2 and less than 8.3 after a dissolution test using stirring method.

Abstract: Provided is a low-cost, easy-to-handle, effective therapeutic agent for wounds that is a therapeutic agent for skin wounds or rough skin that includes at least one selected from the group consisting of zinc chloride, zinc hydroxide, and zinc oxide and may include a pharmaceutically acceptable carrier.

Abstract: Provided is an aluminum nitride single crystal which is easier to cut than conventional ones. The presently disclosed aluminum nitride single crystal 1 has a matrix region M constituting a matrix of the aluminum nitride single crystal, and at least one domain region D included in the matrix region M.

Abstract: Disclosed is a novel solid catalyst having high catalytic activity, a method for producing the solid catalyst, and a catalytic reaction using the solid catalyst. A disclosed surface-modified halloysite is a halloysite having a carboxy group-containing group or a sulfo group-containing group on the surface thereof.