Abstract: The present invention provides a metal terminal that can hold and fix a conductive wire thereto without excessive deformation. In the metal terminal of this invention, a predetermined relationship is set between a length in the lengthwise direction and a width in the widthwise direction of a conductive wire winding portion and a diameter of the conductive wire wound around the conductive wire winding portion to reduce force applied to the conductive wire when holding and fixing the conductive wire.

Abstract: High purity cobalt with a very few content of impurities such as copper, a method of manufacturing thereof, and high purity cobalt targets are provided. The cobalt containing impurities such as copper is dissolved in a hydrochloric acid solution, and the concentration of the hydrochloric acid of the aqueous solution of cobalt chloride is adjusted to 0.1 kmol/m3 to 3 kmol/m3. Then, cobalt is added in the aqueous solution of cobalt chloride, and an inert gas is injected into the solution with agitating, in order to convert the divalent copper ions contained in the aqueous solution of cobalt chloride to monovalent copper ions. Then, the aqueous solution of cobalt chloride is fed into a column filled up with the anion exchange resins. Cobalt is not absorbed on the anion exchange resins although the monovalent copper ions are absorbed on the anion exchange resins. Therefore, copper can be separated from the aqueous solution of cobalt chloride.

Abstract: High purity cobalt with a very few content of impurities such as copper, a method of manufacturing thereof, and high purity cobalt targets are provided. The cobalt containing impurities such as copper is dissolved in a hydrochloric acid solution, and the concentration of the hydrochloric acid of the aqueous solution of cobalt chloride is adjusted to 0.1 kmol/m3 to 3 kmol/m3. Then, cobalt is added in the aqueous solution of cobalt chloride, and an inert gas is injected into the solution with agitating, in order to convert the divalent copper ions contained in the aqueous solution of cobalt chloride to monovalent copper ions. Then, the aqueous solution of cobalt chloride is fed into a column filled up with the anion exchange resins. Cobalt is not absorbed on the anion exchange resins although the monovalent copper ions are absorbed on the anion exchange resins. Therefore, copper can be separated from the aqueous solution of cobalt chloride.

Abstract: To provide a heat-resistant lubricity imparting coating agent that can form a heat-resistant lubricous protective layer with good heat resistance and lubricity which will hardly cause chips due to contact with the thermal head, and which will hardly allow the chips to stick to and be fusion-bonded to the head, and a thermal transfer recording medium having the heat-resistant lubricous protective layer. The heat-resistant lubricity imparting coating agent of the invention contains a polydimethylsiloxane copolymer which includes a long chain alkyl group having a carbon number of 12 or more.

Abstract: High purity cobalt with a very few content of impurities such as copper, a method of manufacturing thereof, and high purity cobalt targets are provided. The cobalt containing impurities such as copper is dissolved in a hydrochloric acid solution, and the concentration of the hydrochloric acid of the aqueous solution of cobalt chloride is adjusted to 0.1 kmol/m3 to 3 kmol/m3. Then, cobalt is added in the aqueous solution of cobalt chloride, and an inert gas is injected into the solution with agitating, in order to convert the divalent copper ions contained in the aqueous solution of cobalt chloride to monovalent copper ions. Then, the aqueous solution of cobalt chloride is fed into a column filled up with the anion exchange resins. Cobalt is not absorbed on the anion exchange resins although the monovalent copper ions are absorbed on the anion exchange resins. Therefore, copper can be separated from the aqueous solution of cobalt chloride.

Abstract: High purity iron with a very few content of impurities such as copper, a method of manufacturing thereof, and high purity iron targets are provided. The iron containing impurities such as copper is dissolved in a hydrochloric acid solution, and the concentration of the hydrochloric acid of the aqueous solution of iron chloride is adjusted to 0.1 kmol/m3 to 6 kmol/m3. Then, iron is added in the aqueous solution of iron chloride, and an inert gas is injected into the solution with agitating, in order to convert the trivalent iron ions and divalent copper ions contained in the aqueous solution of iron chloride respectively to divalent iron ions and monovalent copper ions. Then, the aqueous solution of iron chloride is fed into a column filled up with the anion exchange resins. The divalent iron ions are not absorbed on the anion exchange resins although the monovalent copper ions are absorbed on the anion exchange resins. Therefore, copper can be separated from the aqueous solution of iron chloride.

Abstract: High purity cobalt with a very few content of impurities such as copper, a method of manufacturing thereof, and high purity cobalt targets are provided. The cobalt containing impurities such as copper is dissolved in a hydrochloric acid solution, and the concentration of the hydrochloric acid of the aqueous solution of cobalt chloride is adjusted to 0.1 kmol/m3 to 3 kmol/m3. Then, cobalt is added in the aqueous solution of cobalt chloride, and an inert gas is injected into the solution with agitating, in order to convert the divalent copper ions contained in the aqueous solution of cobalt chloride to monovalent copper ions. Then, the aqueous solution of cobalt chloride is fed into a column filled up with the anion exchange resins. Cobalt is not absorbed on the anion exchange resins although the monovalent copper ions are absorbed on the anion exchange resins. Therefore, copper can be separated from the aqueous solution of cobalt chloride.

Abstract: High purity iron with a very few content of impurities such as copper, a method of manufacturing thereof, and high purity iron targets are provided. The iron containing impurities such as copper is dissolved in a hydrochloric acid solution, and the concentration of the hydrochloric acid of the aqueous solution of iron chloride is adjusted to 0.1 kmol/m3 to 6 kmol/m3. Then, iron is added in the aqueous solution of iron chloride, and an inert gas is injected into the solution with agitating, in order to convert the trivalent iron ions and divalent copper ions contained in the aqueous solution of iron chloride respectively to divalent iron ions and monovalent copper ions. Then, the aqueous solution of iron chloride is fed into a column filled up with the anion exchange resins. The divalent iron ions are not absorbed on the anion exchange resins although the monovalent copper ions are absorbed on the anion exchange resins. Therefore, copper can be separated from the aqueous solution of iron chloride.

Abstract: The object of the present invention is to prevent the sticking of the heat sensitive transfer recording film without generating head refuse and further to prevent transfer obstruction. More particlarly, the present invention provides a compound comprising a polydimethylsiloxane copolymer and one or more synthetic resin(s) selected from a group consisting of polyvinyl acetate derivatives, polyamide, acrylic resin, epoxy resin, unsaturated polyester resin and precursor of unsaturated polyester and/or cellulose derivatives; and sticking proof agents containing said compound; and a heat sensitive transfer film having a sticking proof layer formed by using the agents.

Abstract: An ingot is made from a used target of 30 weight % or more, and new metals of the same components, and recycled alloy powder is made by a gas atomizing process. Magnetic permeability is controlled not to exceed 2 by adjusting the content of rare earth metals in rare earth alloy powder to be at least 35 weight %. By blending the recycled alloy powder with other powder to produce alloy powder containing at least 50 weight % of rare earth alloy powder having a magnetic permeability not higher than 2 and containing at least 65 weight % of rare earth alloy powder. By sintering the alloy powder under pressure and thereafter cutting top, bottom and side surfaces of the sintered material, a target having a magnetic permeability not higher than 2 and having a thickness not less than 8 mm is fabricated.

Abstract: A metal purification method and a metal refinement method in which metals of high purity can be easily refined and recovered without increasing the size of the purification and refining devices or complicating the operation. To this end, metals containing impurities are molten in a plasma arc containing active hydrogen to remove the impurities. If the metals contain ceramics inclusions, the metals are molten in a plasma arc containing active hydrogen and the ceramics inclusions are caused to float over the molten metal by exploiting the difference of density between the molten metal and the ceramics inclusions. The floating ceramics inclusions are decomposed and removed. For application to refining, the metal oxides are molten in a plasma arc containing active hydrogen so as to be reduced to metals.

Abstract: A contoured sputtering target includes a target member of sputtering material having a top surface, a bottom surface and an outer peripheral surface. One or more contoured annular regions are formed on the top surface of the target member that extend radially inwardly from the outer peripheral surface and away from the bottom surface. The target member may further include planar, concave or central recessed regions formed in the top surface that are surrounded by the one or more contoured annular regions. The configuration of the target member reduces generation of contaminating particles from nodules that may form near the outer peripheral surface of the target during a sputtering operation. Methods of forming a contoured sputtering target are also disclosed.

Abstract: The present invention provides a sputtering target which generates a reduced quantity of particles during a sputtering and a method for producing such a sputtering target.Mirror treatment is carried out to a sputter surface 2 which is sputtered when forming a thin film, so that the sputter surface 2 has an arithmetic mean roughness Ra of 0.01 .mu.m or below. A sputtering target 1 with such a smooth sputter surface 2 having a small surface roughness enables to reduce a number of particles generated during a sputtering.

Abstract: A carrier for a dry two-component developer, includes a core material and a silicone-modified acrylic resin layer coated on the surface of the core material, the silicone-modified acrylic resin layer including a silicone-modified acrylic resin, with the ratio of the percentage transmission of infrared spectrum Si--O stretching vibrations (T.sub.Si) of the silicone-modified acrylic resin layer to the percentage transmission of infrared spectrum C.dbd.O stretching vibrations (T.sub.C) thereof, T.sub.Si /T.sub.C, being at least 1.0. The silicone-modified acrylic resin layer can be made from a water-soluble synthetic resin solution containing a silicone macromonomer (A) with a vinyl group being introduced into one terminal thereof, and a vinyl monomer (B) which is copolymerizable with the silicone macromonomer (A), with the molecular weight of the silicone macromonomer (A) of the silicone-modified acrylic resin being in the range of 1,000 to 10,000. Methods of producing such carriers are provided.

Abstract: A magnetic recording medium includes a metal magnetic layer (4) formed on a nonmagnetic base (1). On one major surface (1A) of the nonmagnetic base (1) is formed a metal layer (2) at least the surface of which is oxidized, nitrogenated or carbonized on which the metal magnetic layer (4) is further formed. This magnetic recording medium is capable of improving the durability of the metal magnetic layer (4).