Abstract: The disclosed suspension assembly (S) for carrying a magnetic recording head in close following relation to a recording disc includes an improved arrangement for supplying a load to the recording head. The suspension assembly (S) includes a flexible gimbal section (10a) for mounting the recording head and accommodating dampened pitch, roll and transverse movements. The head load arrangement comprises a flexible cantilevered spring tongue (10b) and an elongate rigid load member (20) that extends from the free end of the spring tongue to contact the suspension assembly (S) adjacent the recording head. The load member (20) is configured to cause the spring tongue (10b) to resiliently deflect by a predetermined amount, resulting in a predetermined head load being supplied through the load member to the recording head.

Abstract: A head suspension assembly includes (a) a head, (b) a load beam carrying the head at one end, (c) a resilient member joining the load beam and a carriage, and (d) a pivot bearing provided between the load beam and the carriage and structured so that the load beam is movable in a direction perpendicular to a record medium, wherein the load beam rocks on fulcrums of respective apexes of two pivots provided on at least one of the carriage and the load beam against resilient member of the load beam joined to the carriage. The head suspension assembly is structured so that the resilient member has narrow sections for reducing the width of the resilient member to a width smaller than that of the joint between the load beam and the carriage. The distal end of the resilient member is joined to the carriage and the resilient member has an opening (hole) in the center thereof.

Abstract: A head suspension assembly includes (a) a slider having a head for recording into/reproducing from a record medium, mounted thereon, (b) a load beam having (i) the slider disposed via a flexure at one end, and (ii) a leaf-spring-like resilient member integrally formed therewith in the vicinity of the other end along the longitudinal centerline thereof, and (c) a carriage having a pair of pivots in contact with the load beam. The distal end of the resilient member is joined to the carriage and the resilient member has an opening (hole) in the center thereof. Because the stress occurring in the leaf-spring-like resilient member that is provided in the load beam of the head suspension assembly is reduced, the resilient member exerts sufficient urging force to the head and has high flexibility. This structure can provide a highly shock-resistant and thin head suspension assembly.

Abstract: The disclosed suspension assembly (S) for carrying a magnetic recording head in close following relation to a recording disc includes an improved arrangement for supplying a load to the recording head. The suspension assembly (S) includes a flexible gimbal section (10a) for mounting the recording head and accommodating dampened pitch, roll and transverse movements. The head load arrangement comprises a flexible cantilevered spring tongue (10b) and an elongate rigid load member (20) that extends from the free end of the spring tongue to contact the suspension assembly (S) adjacent the recording head. The load member (20) is configured to cause the spring tongue (10b) to resiliently deflect by a predetermined amount, resulting in a predetermined head load being supplied through the load member to the recording head.

Abstract: A method of manufacturing a positive electrode foil of an aluminum electrolytic capacitor is provided in which anodizing conditions are optimally determined and automatically set to minimize the loss of production and to produce a constant quality of the positive electrode foil. The method comprises an etching process and an anodizing process. An etched foil produced in the etching process is subjected to a constant current inspection, and then, the anodizing conditions are determined from the result of the constant current inspection. The anodizing conditions are transferred to a control panel in the anodizing process where they are automatically registered as its settings. Also, an apparatus for manufacturing the positive electrode foil is provided which has a voltage sensor connected between an output running roller and cathode electrodes in an anodizing tank. A voltage measured by the voltage sensor is fed back to a direct-current source for controlling its output voltage.

Abstract: A head suspension assembly includes (a) a slider having a head for recording into/reproducing from a record medium, mounted thereon, (b) a load beam having (i) the slider disposed via a flexure at one end, and (ii) a leaf-spring-like resilient member integrally formed therewith in the vicinity of the other end along the longitudinal centerline thereof, and (c) a carriage having a pair of pivots in contact with the load beam. The distal end of the resilient member is joined to the carriage and the resilient member has an opening (hole) in the center thereof. Because the stress occurring in the leaf-spring-like resilient member that is provided in the load beam of the head suspension assembly is reduced, the resilient member exerts sufficient urging force to the head and has high flexibility. This structure can provide a highly shock-resistant and thin head suspension assembly.

Abstract: A method of manufacturing electrode foil for aluminum electrolytic capacitors and an AC power supply unit used therewith are disclosed. An etching is performed on an aluminum foil immersed in an electrolytic solution by applying an AC current to a pair of electrodes in the electrolytic solution. A waveform of the AC current is a deformed sine wave including a period of time (a) when an electric current rises from zero to a peak value, and another period of time (b) when the electric current falls from the peak value to zero. With the periods of time (a) and (b) made different from each other, the surface area of the aluminum foil is efficiently expanded by the etching and an enhancement of electric capacity of the electrode foil is obtained.

Abstract: A method of manufacturing electrode foil for aluminum electrolytic capacitors and an AC power supply unit used therewith. An etching is performed on an aluminum foil immersed in a electrolytic solution by applying an AC current to a pair of electrodes in the electrolytic solution. A waveform of the AC current is a deformed sine wave including a period of time (a) when an electric current rises from zero to a peak value, and another period of time (b) when the electric current falls from the peak value to zero. With the periods of time (a) and (b) made different from each other, the surface area of the aluminum foil is expanded by the etching efficiently and an enhancement of electric capacity of the electrode foil is obtained.

Abstract: A method of manufacturing a positive electrode foil of an aluminum electrolytic capacitor is provided in which anodizing conditions are optimally determined and automatically set to minimize the loss of production and to produce a constant quality of the positive electrode foil. The method comprises an etching process and an anodizing process. An etched foil produced in the etching process is subjected to a constant current inspection, and then, the anodizing conditions are determined from the result of the constant current inspection. The anodizing conditions are transferred to a control panel in the anodizing process where they are automatically registered as its settings. Also, an apparatus for manufacturing the positive electrode foil is provided which has a voltage sensor connected between an output running roller and cathode electrodes in an anodizing tank. A voltage measured by the voltage sensor is fed back to a direct-current source for controlling its output voltage.

Abstract: This invention provides an apparatus for producing an electrode foil for use in aluminum electrolytic capacitors with which a high capacitance is obtained while the distortion of the foil and the leakage current can be controlled. At least two electrode plates as cathode are disposed in an electrolytic tank containing an electrolytic solution, and a direct current is supplied between an aluminum foil as anode and the electrode plates. Anodization is conducted continuously by turning the direction of the aluminum foil via rollers and conveying the foil between the electrode plates. During this treatment, the length and the position of the effective sections of the electrode plates are adjusted to keep the length to be at most two-thirds of the distance between an area near the surface of the electrolytic solution and the upper part of the bottom roller, so that the peak value of the anodizing current density appears not at the surface of the electrolytic solution but in the electrolytic solution.

Abstract: This invention provides an apparatus for producing an electrode foil for use in aluminum electrolytic capacitors with which a high capacitance is obtained while the distortion of the foil and the leakage current can be controlled. At least two electrode plates as cathode are disposed in an electrolytic tank containing an electrolytic solution, and a direct current is supplied between an aluminum foil as anode and the electrode plates. Anodization is conducted continuously by turning the direction of the aluminum foil via rollers and conveying the foil between the electrode plates. During this treatment, the length and the position of the effective sections of the electrode plates are adjusted to keep the length to be at most two-thirds of the distance between an area near the surface of the electrolytic solution and the upper part of the bottom roller, so that the peak value of the anodizing current density appears not at the surface of the electrolytic solution but in the electrolytic solution.

Abstract: An inventive method of preparing an aluminum foil used in a high voltage aluminum electrolytic capacitor is disclosed. The method involves:(a) immersing an aluminum foil in a first forming solution,(b) applying a first voltage to said aluminum foil immersed in said first forming solution,(c) immersing said aluminum foil to which said first voltage is applied in a second forming solution, without passing current, and(d) applying a second voltage to said aluminum foil immersed in said second forming solution.Also disclosed is an aluminum foil that renders an electrolytic capacitor having properties of both high electrostatic capacity and small leak current.