Abstract: A roofing tile for performing solar-light power generation includes a roofing tile main body set tilted on a roof, and a photovoltaic module fixed to the main body. The roofing tile main body has a recess open upward. The photovoltaic module is stored and fixed in the recess. The roofing tile main body has an eaves-side edge portion. This edge portion has a plurality of drain ditches. Each drain ditch crosses the upper portion of the eaves-side edge portion and communicates with the recess. The level of the bottom surface of each drain ditch is equal to or lower than that of the bottom surface of the recess. With this construction, rainwater that has entered the recess is discharged through the drain ditches. Rainwater is drained by running the rainwater downward on the upper surface side of the eaves-side edge portion along the tilt direction of the roofing tile.

Abstract: A solar battery module effectively preventing public nuisance caused by reflection of light on the light entering side and method of manufacturing the solar battery module in a simple manner at a low cost are provided. The solar battery module includes a transparent insulating substrate having first and second surfaces, a transparent electrode layer formed on the first surface of the transparent insulating substrate, a photo semiconductor layer formed on the transparent electrode layer, a back electrode layer formed on the photo semiconductor layer, and an anti-glare film having a roughened surface texture formed on the second surface on the transparent insulating substrate to which the light enters. The light receiving surface of the solar battery module having the roughened surface texture has 60° gloss of at most 60.

Abstract: A solar battery module effectively preventing public nuisance caused by reflection of light on the light entering side and method of manufacturing the solar battery module in a simple manner at a low cost are provided. The solar battery module includes a transparent insulating substrate having first and second surfaces, a transparent electrode layer formed on the first surface of the transparent insulating substrate, a photo semiconductor layer formed on the transparent electrode layer, a back electrode layer formed on the photo semiconductor layer, and an anti-glare film having a roughened surface texture formed on the second surface on the transparent insulating substrate to which the light enters. The light receiving surface of the solar battery module having the roughened surface texture has 60° gloss of at most 60.

Abstract: The upper surface of a tile body for use as a roofing material for a building is provided with a depression that holds therein a photovoltaic cell module having a function to convert solar energy into electrical energy. An adhesive is applied to the whole or part of the base of the depression, and the photovoltaic cell module, which has a terminal box on its lower surface, is fixed to the base of the depression by adhesive bonding.

Abstract: A photovoltaic module has a cathode and anode acting as electrodes for collecting an output power. When the photovoltaic module is installed on a roof of a building for example, the cathode is located at a position higher than the anode.

Abstract: To treat waste containing harmful metals such as lead, cadmium, mercury, chromium, copper, nickel, zinc, etc., the waste is mixed with a treating agent containing, as the essential constituent component, solid acid(s) and/or cement and additionally a caking inhibitor, kneaded with water where necessary, then solidified by curing. Harmful metals are thereby stabilized in the thus-solidified cakes and are not released therefrom.

Abstract: To treat waste containing harmful netals such as lead, cadmium, mercury, chromium, copper, nickel, zinc, etc., the waste is mixed with a treating agent containing, as the essential constituent component, solid acid(s) and/or cement and additionally a caking inhibitor, kneaded with water where necessary, then solidified by curing. Harmful metals are thereby stabilized in the thus-solidified cakes and are not released therefrom.

Abstract: A method for solidifying industrial waste containing various toxic metals and other substances without fail and stabilizing the waste so as to prevent the toxic metals, particularly lead, from leaching out. The method comprises mixing a waste containing calcium compounds such as hydroxide, oxide and chloride of calcium with a treatment mainly comprising water glass, adding, if necessary, water hereto to adjust the total water content to 25-75 parts by weight per 100 parts by weight of the waste, kneading the resultant mixture, and aging the same for at least 6 hours in a temperature range of 40.degree. to 100.degree. C., preferably by utilizing the waste heat of a waste incinerator.

Abstract: A closely adherent metal coating having a uniform thickness and substantially free from pinholes is formed on the porous surface of a bonded magnet to improve its oxidation and corrosion resistance without lowering its magnetic properties. The coating is formed by electroplating from an aqueous solution not containing chlorine, and having a pH of 5 or above. More particularly, the solution contains mainly nickel sulfate, an electrolyte in the form of an organic acid salt not containing chlorine, and a basic electrolyte not containing chlorine, and forms a nickel coating on the magnet surface.

Abstract: A highly rustproof resin-bonded magnet made by using a specific rustproofing resin for coating the particles of a magnetic powder, bonding them to form a molded body, or coating its surface, or for two or all of those purposes. The specific resin is selected from ones containing groups of atoms having a power of forming a coordinate bond and a reducing action. More specifically, it is (a) a high molecular compound produced by reacting with an epoxy resin one or more of a polyhydric phenol having adjacent hydroxyls, a polyhydric phenolic carboxylic acid having adjacent hydroxyls, an ester of a polyhydric phenol and a polyhydric alcohol having adjacent hydroxyls, and a polycyclic and polyhydric phenol having adjacent hydroxyls, (b) a redox resin as a reduction agent, or (c) a high molecular compound produced by curing a mixture of ascorbic acid, or a derivative thereof, and an epoxy resin.

Abstract: A sintered or bonded permanent magnet formed from a material consisting mainly of iron, particularly a Nd-Fe-B alloy, and having a high corrosion resistance has a surface coated with a resin obtained by the polycondensation of tannic acid, phenols and aldehydes. A bonded magnet is also made from a powder of any such material composed of particles coated with any such resin.

Abstract: A highly rustproof resin-bonded magnet made by using a specific rustproofing resin for coating the particles of a magnetic powder, bonding them to form a molded body, or coating its surface, or for two or all of those purposes. The specific resin is selected from ones containing groups of atoms having a power of forming a coordinate bond and a reducing action. More specifically, it is (a) a high molecular compound produced by reacting with an epoxy resin one or more of a polyhydric phenol having adjacent hydroxyls, a polyhydric phenolic carboxylic acid having adjacent hydroxyls, an ester of a polyhydric phenol and a polyhydric alcohol having adjacent hydroxyls, and a polycyclic and polyhydric phenol having adjacent hydroxyls, (b) a redox resin as a reduction agent or (c) a high molecular compound produced by curing a mixture of ascorbic acid, or a derivative thereof, and an epoxy resin.

Abstract: A reamer includes a shank portion and a reamer head fixed to the shank portion. A cutting blade is mounted on the reamer head to project axially forwardly from the front end of the reamer head. A bearing guide pad is mounted on the reamer head circumferentially spaced from the cutting blade downstream with respect to the rotating direction of the reamer, and a sizing guide pad is mounted on the reamer head substantially diametrically opposed to the cutting blade. The axial lengths (L2) of the guide surfaces of the bearing guide pad and the sizing guide pad are both not larger than the axial length (L1) of the circle land of the cutting blade, the axial length (L1) of the cutting blade is not larger than the diameter (D) of the reamer, and the width (W2) of the sizing guide pad is not larger than the width (W1) of the bearing guide pad. The axial lengths (L2) of the guide surfaces of the guide pads are preferably 5 mm to 15 mm where the diameter of the reamer is 5 mm to 100 mm.

Abstract: A sintered or bonded permanent magnet formed from a material consisting mainly of iron, particularly a Nd-Fe-B alloy, and having a high corrosion resistance has a surface coated with a resin obtained by the polycondensation of tannic acid, phenols and aldehydes; a bonded magnet is also made from a powder of any such material composed of particles coated with any such resin.

Abstract: Disclosed is a magnet which is composed mainly of magnetic powders expressed by R-T-B (R is Nd or that partially replaced with rare earth elements and T is Fe or that partially replaced with transition metal.) and a chelate resin or a chelate resin in admixture with other synthetic resins. The magnetic has markedly improved resistance to deterioration caused by oxidation and corrosion.

Abstract: At the top surface of a drill head, one or two tips are fixed radially with a little clearance from the axis of rotation, and thereby a nonmachining zone is formed around the axis of rotation. Each tip has its cutting edge formed projectingly from the radial line to a tangential direction and the distance from the axis of rotation to the cutting edge is made greater than the distance from the axis of rotation to an end face of the tip. The core which is generated and grows in the nonmachining zone in the course of machining is pressed by the end face of the tip and broken off, or is clamped between the end faces of the tips and wrenched off due to friction torque.