Abstract: A method for separating and recovering a plurality of rare-earth elements, the method including a step of introducing, into a liquid, a mixture containing a rare-earth oxychloride and a rare-earth chloride, the rare-earth oxychloride constituted from a rare-earth element different from a rare-earth element constituting the rare-earth chloride, thereby obtaining an insoluble matter containing the rare-earth oxychloride and a liquid in which the rare-earth chloride is dissolved, a step of recovering the rare-earth oxychloride from the insoluble matter, and a step of recovering the rare-earth chloride from the liquid in which the rare-earth chloride is dissolved.

Abstract: A method for separating and recovering a plurality of rare-earth elements, the method including a step of introducing, into a liquid, a mixture containing a rare-earth oxychloride and a rare-earth chloride, the rare-earth oxychloride constituted from a rare-earth element different from a rare-earth element constituting the rare-earth chloride, thereby obtaining an insoluble matter containing the rare-earth oxychloride and a liquid in which the rare-earth chloride is dissolved, a step of recovering the rare-earth oxychloride from the insoluble matter, and a step of recovering the rare-earth chloride from the liquid in which the rare-earth chloride is dissolved.

Abstract: In making a particle board by forming a mat from particles obtained from a wooden material and pressing the mat, a particle board light in weight and excellent in strength, dimensional stability and surface properties can be made at a low cost by using a wooden material of low specific gravity and carrying out the press of the particle board with a high compression ratio in mat thickness before and after the press.

Abstract: In making a particle board by forming a mat from particles obtained from a wooden material and pressing the mat, a particle board light in weight and excellent in strength, dimensional stability and surface properties can be made at a low cost by using a wooden material of low specific gravity and carrying out the press of the particle board with a high compression ratio in mat thickness before and after the press.

Abstract: A process for producing a metal evaporated article, which includes a metallization step of evaporating a metal and depositing the evaporated metal onto a continuously running substrate and an auxiliary material deposition step of evaporating an auxiliary material contained in an evaporator and depositing the evaporated auxiliary material onto the continuously running substrate, before or after the metallization step, comprising the steps of detecting the pressure of the atmosphere where the auxiliary material evaporated from the evaporator exists, and controlling the evaporation condition of the auxiliary material in the evaporator based on the information concerning the detected pressure.

Abstract: A magnetic disc apparatus has a head disc assembly of enclosed type. A humidity adjustor is operative when a humidity inside the head disc assembly rises above a predetermined humidity degree for absorbing moisture in the enclosed head disc assembly, and is operative when a humidity inside the head disc assembly falls below the predetermined humidity degree for releasing moisture into the enclosed head disc assembly.

Abstract: A yarn winding apparatus having a traverse guide to catch a yarn and traverse it in an axial direction of a bobbin onto which the yarn is taken and a pair of yarn release guides which, located inside of and in the vicinity of both ends of the full traverse stroke Wo corresponding to the full width Wp of a yarn package, can go into or out of the path of the yarn. The traverse guide may be either a cam traverser or a rotary blade traverser. The yarn winding is done by repeating the step of repeatedly traversing the yarn over a full traverse stroke Wo and the step of repeatedly traversing the yarn over a narrow traverse stroke W narrower than the full traverse stroke Wo.

Abstract: A fluorocarbonpolymer material for coating flexible and other surfaces, said material comprising an elastic material and adhesive, and the process for making the said material.

Abstract: An improved turret type yarn winding apparatus provided with means for regulating a running yarn passage when the bobbin change operation is carried out. This yarn passage regulating means is capable of utilizing for the conventional turret type yarn winding apparatus. When the full size yarn package is displaced from the winding position to the stand-by position while a fresh bobbin is displaced to the stand-by position to the winding position, the running yarn is firstly shifted to a position outside the traverse motion of the traverse mechanism, and thus shifted running yarn is forced to pass along a predetermined yarn passage maintained by the above-mentioned yarn passage regulating means so that the running yarn can be assuredly caught by a yarn catching means rotated together with the spindle whereon a fresh bobbin is mounted, at the winding position.