Abstract: Ultraviolet rays are radiated over a lubricant film formed on the surface of a recording medium such as a hard disk. The recording medium is then subjected to exposure to bases. The radiation of the ultraviolet rays allows the lubricant film to uniformly spread over the surface of the recording medium. The repellency can be enhanced over the surface of the recording medium. The friction can be reduced on the recording medium. Moreover, when the recording medium is exposed to the base, organic acid existing on the surface of the recording medium and/or in the lubricant film can be transformed into salt. The organic acid can be washed off or removed from the surface of the recording medium and/or out of the lubricant film in this manner. Less organic acid greatly contributes to prevention of generation of corrosion mounds on the recording medium over a longer period.

Abstract: Ultraviolet rays are radiated over a lubricant film formed on the surface of a recording medium such as a hard disk. The recording medium is then subjected to exposure to a bases. The radiation of the ultraviolet rays allows the lubricant film to uniformly spread over the surface of the recording medium. The repellency can be enhanced over the surface of the recording medium. The friction can be reduced on the recording medium. Moreover, when the recording medium is exposed to the base, organic acid existing on the surface of the recording medium and/or in the lubricant film can be transformed into salt. The organic acid can be washed off or removed from the surface of the recording medium and/or out of the lubricant film in this manner. Less organic acid greatly contributes to prevention of generation of corrosion mounds on the recording medium over a longer period.

Abstract: After a sacrifice layer 51 has been formed on a substrate 50, there are formed a protective layer 41, flying surface layer 42, head element layer 43 and actuator layer 44. Further, a slider body 45 is formed by means of plating, and then the sacrifice layer 51 is removed so that the slider body can be separated from the substrate 50. In the thus obtained magnetic head slider 40, when an actuator 40a is loaded or unloaded, a frictional force, generated when the head element 43 is made to come close to or contact with a recording medium, is reduced and the head element 43 can accurately follow a track on the recording medium. A portion of the head element layer 43 forms at least one protrusion 46 which protrudes from a surface opposed to the recording medium onto the recording medium side.

Abstract: A method of electroplating using a photoresist layer on a conductive seed layer. The photoresist layer defines a column-shaped space. Ridges are formed on the wall surfaces of the photoresist layer surrounding the column-shaped space. The ridges extend from the conductive seed layer to the opening of the column-shaped space. The electrolytic solution drives bubbles out of the column-shaped space, so that the column-shaped space is filled with the electrolytic solution without any cavities. In addition, if hydrogen bubbles are generated in the column-shaped space, the electrolytic solution serves to drive the hydrogen bubbles out of the column-shaped space along the corners of the column-shaped space.

Abstract: In a magnetic head slider, in which a slider film is formed on the surface of a substrate or on the surface of a sacrificial layer provided on the substrate so that the substrate or the substrate and the sacrificial layer are separate from the slider film, in an MR head on the inductive layer on the track of a medium, there is provided a rotary mechanism 21 supported by the stationary section 20a of the slider film so that a portion 24 of the slider film can be rotated on a surface substantially parallel to the surface of the recording medium and, in the movable section 24 of the rotating mechanism, there is provided an opposing magnetic pole of the magnetic head element 22 which is opposed to at least the recording medium.

Abstract: In a method for producing a magnetic head slider 20, wherein, after a sacrificial layer 31 is formed on a substrate 30, a protective film layer 21, an adhesion layer 22, a head element layer 23 and an air bearing surface layer 28 are sequentially formed thereon, and finally a slider body 29 is formed by a plating, and then the magnetic head slider 20 is separated from the substrate 30 by the removal of the sacrificial layer 31. In order to prevent the air bearing surface layer from breaking or cracking due to the generation of bubbles during a process for removing the sacrificial layer by etching or the like and separating a magnetic head slider from a substrate, after the head element layer 23 has been formed but before the air bearing surface layer 28 is formed, a first hard film layer 24 consisting of a hard material is formed.

Abstract: The steel wire is made using a carbon steel wire rod material containing 0.70 to 0.75 wt % carbon and has the characteristics that its diameter is 0.10 to 0.40 mm and Y.gtoreq.-1960d+3580 ?Y: tensile strength (N/mm.sup.2), d: diameter (mm)!. Furthermore, the torque decrease factor of the steel wire is less than 7% in a torsion-torque curve in a torsion-torque test wherein forward twisting and then reverse twisting are applied. A preferred steel cord has two steel wires bundled together substantially in parallel and one steel wire is wound around this bundle. This steel cord is made from steel wires having the diameter, tensile strength and toughness characteristics set forth above, and also the ratio B/A of the strength B of the twisted steel cord to the aggregate strength A of the steel wires before they are twisted together into the steel cord is 0.935 or over.

Abstract: Disclosed herein is a rubber-reinforcing steel wire which comprises: a steel wire; and a coating formed on the surface of said wire and containing a polymer of a triazine-thiol derivative represented by the following general formula: ##STR1## where R is --OR', --SR', --NHR', or --N(R').sub.2 ; R' is H, alkyl group, alkenyl group, phenyl group, phenylalkyl group, alkylphenyl group, or a cycloalkyl group, and M is H, Na, Li, K, 1/2Mg, 1/2Ba, 1/2Ca, primary, secondary or tertiary aliphatic amine, quaternary ammonium salt, or phosphonium salt.