A disk device includes a housing that includes a base with a through hole formed therein and a cover fixed to the base, wherein the housing contains a low density gas; a plurality of heads and a wiring member disposed within the housing that includes conductors that are electrically connected to the heads; a sealing substrate that is fixed to the base and covers the through hole; a control circuit board that is disposed outside the housing and adjacent to a back surface of the base; a first two-piece connector that is disposed within the housing and connects the sealing substrate and the wiring member; and a second two-piece connector that connects the sealing substrate and the control circuit board. The second two-piece connector includes a first connector mounted on the sealing substrate and a second connector that is mounted on the control circuit board.

A disk device includes a housing that includes a base with a through hole formed therein and a cover fixed to the base, wherein the housing contains a low density gas; a plurality of heads and a wiring member disposed within the housing that includes conductors that are electrically connected to the heads; a sealing substrate that is fixed to the base and covers the through hole; a control circuit board that is disposed outside the housing and adjacent to a back surface of the base; a first two-piece connector that is disposed within the housing and connects the sealing substrate and the wiring member; and a second two-piece connector that connects the sealing substrate and the control circuit board. The second two-piece connector includes a first connector mounted on the sealing substrate and a second connector that is mounted on the control circuit board.

A method in one embodiment includes fabricating a tape having an applicator portion for applying an organic coating to a magnetic head for reducing exposure of the head to oxidation promoting materials. The method also includes applying the organic coating to the applicator portion of the tape, the organic coating being for coating a tape bearing surface of the magnetic head with the organic coating upon the applicator portion being run over the tape bearing surface of the magnetic head. The method further includes applying a lubricant to a data portion of the tape.

A magnetic disk device includes a plurality of disk-shaped magnetic disks, a spacer, a hub, and a clamp. Each of the magnetic disks includes a through-hole in a center section thereof. The spacer is disposed among the magnetic disks, and includes a through-hole in a center section thereof. The hub is inserted into the through-holes of the magnetic disks and the spacers. The clamp presses and holds the magnetic disks and the spacer. At surfaces where the magnetic disks and the spacer or the clamp contact, a flat surface height of an upper surface of at least one magnetic disk that contacts an outer circumference of the spacer or the clamp is lower than a flat surface height of the upper surface of at least one magnetic disk of the magnetic disks that contacts an inner circumference of the spacer or the clamp.

A method for protecting a magnetic head according to one embodiment includes applying an organic coating to a magnetic head using a product having an applicator portion for applying an organic coating to a magnetic head. The organic coating is on the applicator portion of the tape, and a lubricant is on a data portion of the tape. The lubricant has a different composition than the organic coating. Another method for protecting a magnetic head includes applying an organic coating to a magnetic head for reducing exposure of the head to oxidation promoting materials; and storing the magnetic head. Another method includes fabricating a tape having an applicator portion for applying an organic coating to a magnetic head for reducing exposure of the head to oxidation promoting materials; applying the organic coating to the applicator portion of the tape; and applying a lubricant to a data portion of the tape.

A hard disk drive with a multiple disk stack normally utilizes disk separator plates near the disk surfaces to reduce wind induced vibrations in the disks and the read/write heads. The manufacturing methods currently used to make these separator plates, metal casting and machining, or injection molded plastic, or extruding and machining, or cold forging tends to be expensive and creates unwanted weight and bulk without the desired precision. Stamping disk separator plates from metal provides exceptional dimensional control at reduced cost, but cannot readily provide the thicknesses required. Stamping and extruding the offsets, or stamping and folding the offsets, is a manufacturing process that provides the required dimensions for the offsets, and dimensional control and reduced cost.

A magnetic disk device includes a plurality of disk-shaped magnetic disks 30, spacers 80, a hub 90, a clamp 70, and a fastening member 72. Each of the magnetic disks 30 includes a through-hole in a center section thereof. Each of the spacers 80 includes a through-hole in a center section thereof, and is disposed among the magnetic disks 30. The hub 90 is inserted into the through-holes of the magnetic disks 30 and the spacers 80. The clamp 70 presses and holds the magnetic disks 30 and the spacers 80. The fastening member 72 fastens the clamp 70 to the hub 90. The clamp 70 is fastened to the hub by the fastening member 72 with a torque of from 5 cN.Math.m to 45 cN.Math.m.

A disk device includes a housing that includes a base with a through hole formed therein and a cover fixed to the base, wherein the housing contains a low density gas; a plurality of heads and a wiring member disposed within the housing that includes conductors that are electrically connected to the heads; a sealing substrate that is fixed to the base and covers the through hole; a control circuit board that is disposed outside the housing and adjacent to a back surface of the base; a first two-piece connector that is disposed within the housing and connects the sealing substrate and the wiring member; and a second two-piece connector that connects the sealing substrate and the control circuit board. The second two-piece connector includes a first connector mounted on the sealing substrate and a second connector that is mounted on the control circuit board.

According to one embodiment, a production pallet control system comprises a plurality of magnetic disk devices configured to execute a plurality of processes, and the magnetic disk devices configured to output status information related to the process based on a requires from the outside and a controller connected to the magnetic disk devices in a mutually communicable manner, the controller configured to inquire the status information of each of the magnetic disk devices.

A disc tray includes a bottom wall including an outer periphery and an inner rib supporter supporting the lowermost disc from below. The bottom wall is thickened from the outer periphery toward the inner rib supporter. The lowermost disc includes a data recording area, an inner rib, and an outer rib. When the lowermost disc is stationary, the outer rib of the lowermost disc and the upper surface of the bottom wall are separated by a gap. When the lowermost disc is inclined in such a manner that part of the outer rib of the lowermost disc comes into contact with the upper surface of the bottom wall, the data recording area of the lowermost disc and the upper surface of the bottom wall are separated by a gap greater than thickness of the outer or inner rib.