Abstract: The present invention extracts precious metals from an acidic solution containing precious metals in an early and highly efficient manner. Provided is an extraction agent for precious metals that is represented by the general formula below. In the formula, R1 and R2 each represent the same alkyl group or different alkyl groups, R3 represents a hydrogen atom or an alkyl group, and R4 represents a hydrogen atom or a discretionary group that is not an amino group and that bonds to ? carbon as an amino acid. By subjecting an acidic solution containing precious metals to solvent extraction using the extraction agent for precious metals, a plurality of precious metals can be recovered all at once from a solution containing a large amount of various impurities.

Abstract: A motor is provided having a consequent-pole type rotor that has soft magnetic material poles and magnetic poles positioned around the rotor in an alternating manner. A convex surface on each of the poles is formed as a surface in which a midpoint of the convex surface has a radial distance from the rotation axis that is greater than a radial distance of the circumferential edges of the convex surface from the rotation axis. A radial width of a first magnetism transfer part of a cylindrical yoke and a radial width of a second magnetism transfer part of the magnetic pole fulfill a relationship such that an appropriate balance of the magnetic resistance between the first magnetism transfer part and the second magnetism transfer part is achieved. As a result, cogging torque is reduced without reducing output torque.

Abstract: To efficiently and selectively recover scandium from an acid solution containing calcium, magnesium and scandium. In the present invention, an acid solution containing calcium, magnesium and scandium is brought into contact with a scandium recovering resin impregnated with an amide derivative represented by the following general formula for an hour or more. In the formula, R1 and R2 each represent the same or different alkyl groups. The alkyl group can be a straight chain or a branched chain. R3 represents a hydrogen atom or an alkyl group. R4 represents a hydrogen atom or any group other than an amino group, which is bound to the ? carbon as an amino acid. The amide derivative is preferably any one or more of glycinamide derivatives, histidinamide derivatives, lysinamide derivatives and aspartic acid amide derivatives.

Abstract: Provided are an extraction agent and extraction method that selectively extract and, at a low cost, recover indium from an acidic solution containing indium and zinc. The indium extraction agent comprises an amide derivative represented by general formula (I). In the formula, R1 and R2 each indicate the same or different alkyl group, R3 indicates a hydrogen atom or an alkyl group, and R4 indicates a hydrogen atom or any given group, other than an amino group, bound to the ?-carbon as an amino acid. The general formula preferably has a glycine unit, a histidine unit, a lysine unit, an aspartic acid unit, or an N-methylglycine unit. By extracting indium from an acidic solution containing indium and zinc by means of solvent extraction using the extraction agent, it is possible to selectively extract indium.

Abstract: A rotational position sensing apparatus includes a rotational position sensing magnet and a fixing member. The fixing member is made of a non-magnetic material and is fixed to a rotatable shaft of a rotor. The fixing member includes a plurality of projections, which radially inwardly project and are arranged one after another in a circumferential direction at an inner peripheral surface of a first peripheral wall portion within a space, which is defined by the first peripheral wall portion and a bottom wall portion and holds the rotational position sensing magnet.

Abstract: The present invention extracts precious metals from an acidic solution containing precious metals in an early and highly efficient manner. Provided is an extraction agent for precious metals that is represented by the general formula below. In the formula, R1 and R2 each represent the same alkyl group or different alkyl groups, R3 represents a hydrogen atom or an alkyl group, and R4 represents a hydrogen atom or a discretionary group that is not an amino group and that bonds to ? carbon as an amino acid. By subjecting an acidic solution containing precious metals to solvent extraction using the extraction agent for precious metals, a plurality of precious metals can be recovered all at once from a solution containing a large amount of various impurities.

Abstract: A thin film photoelectric converter including a transparent conductive layer, a laser light absorption layer, a back electrode layer, a semiconductor photoelectric conversion layer and a transparent electrode layer stacked on a translucent substrate. The laser light absorption layer is parted into regions by first kind parting line grooves, and the photoelectric conversion layer is parted into regions by third kind parting line grooves penetrating the laser light absorption layer, the rear surface electrode layer and the photoelectric conversion layer. The transparent electrode layer is parted into regions by fourth kind parting line grooves penetrating the laser light absorption layer, the rear surface electrode layer, the photoelectric conversion layer and the transparent electrode layer. A receiving side transparent electrode region of one cell is electrically connected to a back electrode region of an adjacent cell through the first kind groove, the transparent conductive layer and the third kind groove.

Abstract: A light guide plate 13 has a number of back surface-side unit optical structures 131 arranged in a back surface 13d along a light guide direction. Each back surface-side unit optical structure 131 is tapered in a direction away from a light exit surface 13c, and has a first inclined surface 132 lying on the light entrance surface side, a second inclined surface (133) lying opposite the first inclined surface and which totally reflects at least part of incident light, and a top surface region 134 lying between the first inclined surface 132 and the second inclined surface 133, and located farthest from the light exit surface 13c. The top surface regions 134 each include a plurality of surfaces 134a to 134d which are parallel to the light exit surface 13c and have different heights “h” in the direction away from the light exit surface 13c.

Abstract: Provided is a method for efficiently separating nickel, cobalt and/or scandium, and impurities from an acidic solution containing impurities such as manganese, iron, zinc, and aluminum. A valuable-metal extracting agent of the present invention is expressed by general formula (1). In the formula, R1 and R2 each represent the same or different alkyl groups, R3 represents a hydrogen atom or an alkyl group, and R4 represents a hydrogen atom or a given group, other than an amino group, that bonds with an ? carbon as an amino acid. In general formula (1), the inclusion of a glycine unit, a histidine unit, a lysine unit, an asparagine acid unit, or a normal methylglycine unit is preferred.

Abstract: Provided is a method that selectively extracts and, at a low cost, recovers indium from an acidic solution containing indium and gallium. The present invention is a method that is for isolating a valuable metal and that, by means of subjecting an acidic solution containing indium and gallium to a solvent extraction that is by means of an extraction agent comprising an amide derivative represented by a general formula, extracts indium from the acidic solution. In the formula, R1 and R2 each indicate the same or a different alkyl group, R3 indicates a hydrogen atom or an alkyl group, and R4 indicates a hydrogen atom or any given group, other than an amino group, bonded to the ?-carbon as an amino acid. The general formula preferably has a glycine unit, a histidine unit, a lysine unit, an aspartic acid unit, or an N-methylglycine unit.

Abstract: In order to selectively extract copper and/or lead from an acidic solution containing high concentrations of manganese, etc., the valuable-metal extracting agent of the present invention is expressed by general formula (1). In the formula, R1 and R2 each represent the same or different alkyl groups, R3 represents a hydrogen atom or an alkyl group, and R4 represents a hydrogen atom or a given group, other than an amino group, that bonds with an ? carbon as an amino acid. In general formula (1), the inclusion of a glycine unit, a histidine unit, a lysine unit, an asparagine acid unit, or a normal methylglycine unit is preferred. When using the extracting agent to extract copper/and lead, it is preferable that the pH of the acidic solution be adjusted to 1.0-5.5 inclusive.

Abstract: A light guide plate includes a body portion, and a plurality of unit shaped elements defining a light exit surface and arranged on one-side surface of the body portion side by side in an arrangement direction intersecting a light guide direction. Each unit shaped element extends in a direction intersecting the arrangement direction. A light exit surface angle ?a, which is the angle of the contour of each unit shaped element with respect to the one-side surface, is more than 10° and not more than 30° in a zone of the contour of each unit shaped element, the width of the zone along the arrangement direction being not less than 35% and not more than 70% of the full width of the unit shaped element.

Abstract: An optical module includes a polarizing plate and a light emitter disposed in a position facing the polarizing plate. The polarizing plate includes a polarizer and a protective film joined to the polarizer. The protective film has a light control function that changes the traveling direction of light. The light emitter is disposed in a position directly facing the protective film of the polarizing plate.

Abstract: A light guide plate includes a body portion, first unit optical elements extending on the body portion in the light guide direction, and second unit optical elements disposed in between the first unit optical elements on the body portion. The width of each first unit optical element gradually decreases from that at the center to that at each end in the light guide direction. The ratio of the height to the width in each first unit optical element at the center is higher than the ratio of the height to the width in each second unit optical element.

Abstract: In the present invention, nickel is selectively extracted from an acidic solution that contains a high concentration of manganese. This valuable metal extraction agent is represented by the general formula. In the formula, R1 and R2 are alkyl groups that may be the same or different, R3 is a hydrogen atom or an alkyl group, and R4 is a hydrogen atom or any group, other than an amino group, bonded to an a carbon atom of an amino acid. The general formula preferably has a glycine unit, a histidine unit, a lysine unit, an aspartic acid unit or a n-methylglycine unit. When extracting nickel by using this extraction agent, it is preferable to adjust the pH of the acidic solution to 2.3 to 5.5 inclusive.

Abstract: An optical sheet is incorporated in a direct type surface light source device including a light source and is configured to allow light emitted from the light source to exit after changing a travel direction of the light. The optical sheet has a light exiting side lens part including unit lenses juxtaposed to one another and each unit lens is convex toward a light exiting side. A light scattering layer, configured to scatter the light, is provided to each unit lens. The light scattering layer extends along a light exiting side surface of each convex unit lens and constitutes the light exiting side surface of the unit lens. A thickness of the light scattering layer around an apex portion of each unit lens is greater than the thickness of the light scattering layer around each end portion of the unit lens.

Abstract: To efficiently and selectively recover scandium from an acid solution containing calcium, magnesium and scandium. In the present invention, an acid solution containing calcium, magnesium and scandium is brought into contact with a scandium recovering resin impregnated with an amide derivative represented by the following general formula for an hour or more. In the formula, R1 and R2 each represent the same or different alkyl groups. The alkyl group can be a straight chain or a branched chain. R3 represents a hydrogen atom or an alkyl group. R4 represents a hydrogen atom or any group other than an amino group, which is bound to the ? carbon as an amino acid. The amide derivative is preferably any one or more of glycinamide derivatives, histidinamide derivatives, lysinamide derivatives and aspartic acid amide derivatives.

Abstract: A cover is configured into a tubular form and is fitted to a radially outer surface of each of projections of a rotor core and a radially outer surface of each of permanent magnets. A circumferential center portion of the radially outer surface of each projection contacts a radially inner surface of the cover. Circumferential end portions of the radially outer surface of each projection are radially inwardly spaced from the radially inner surface of the cover.

Abstract: Provided are an extraction agent and extraction method that selectively extract and, at a low cost, recover indium from an acidic solution containing indium and zinc. The indium extraction agent comprises an amide derivative represented by general formula (I). In the formula, R1 and R2 each indicate the same or different alkyl group, R3 indicates a hydrogen atom or an alkyl group, and R4 indicates a hydrogen atom or any given group, other than an amino group, bound to the ?-carbon as an amino acid. The general formula preferably has a glycine unit, a histidine unit, a lysine unit, an aspartic acid unit, or an N-methylglycine unit. By extracting indium from an acidic solution containing indium and zinc by means of solvent extraction using the extraction agent, it is possible to selectively extract indium.

Abstract: Provided is a method that selectively extracts and, at a low cost, recovers indium from an acidic solution containing indium and gallium. The present invention is a method that is for isolating a valuable metal and that, by means of subjecting an acidic solution containing indium and gallium to a solvent extraction that is by means of an extraction agent comprising an amide derivative represented by a general formula, extracts indium from the acidic solution. In the formula, R1 and R2 each indicate the same or a different alkyl group, R3 indicates a hydrogen atom or an alkyl group, and R4 indicates a hydrogen atom or any given group, other than an amino group, bonded to the ?-carbon as an amino acid. The general formula preferably has a glycine unit, a histidine unit, a lysine unit, an aspartic acid unit, or an N-methylglycine unit.