Abstract: A circulation filter mounting structure in a disk drive including a housing having a base and a cover fixed to the base, a disk as a storage medium rotatably contained in the housing, and a head contained in the housing for recording and reproducing data on the disk. The circulation filter mounting structure includes a wall provided between an outer circumference of the disk and an inner surface of the housing, for partially blocking an air flow generated by rotation of the disk, the wall extending in a direction substantially perpendicular to a radial direction of the disk, and a filter mounted between the wall and the inner surface of the housing, for collecting dust.

Abstract: A magnetic disk drive having one or more magnetic disks, one or more read/write heads each recording or reproducing information for a corresponding one of the magnetic disks, a servo head reading control information from a predetermined one of the magnetic disks, and an actuator supporting the one or more read/write heads and the servo head includes first leads extending from the one or more read/write heads along one side of the actuator, and second leads extending from the servo head along the other side of the actuator so that the second leads can be distanced in space from the first leads.

Abstract: Disclosed is a magnetic disk apparatus having a large internal accommodation space. This magnetic disk apparatus comprises a case defining accommodation space inside, magnetic disks disposed in the accommodation space, a spindle motor, magnetic heads and a rotary actuator. The case includes a cover having a first flat portion and a first upright portion standing upright on the first flat portion at a peripheral portion thereof, and a base having a second flat portion and a second upright portion standing upright on the second flat portion at a peripheral portion thereof. This design can ensure a sufficient strength even if the case is made thin, thus allowing the internal accommodation space to be increased. The magnetic disk apparatus also has a printed circuit board, which is provided at the case and has a control circuit mounted thereon for controlling the magnetic heads. The printed circuit board supplies a source voltage to the case.

Abstract: A breather filter unit for a magnetic disk drive including a base and a cover fixed to the base, the cover having a vent. The breather filter unit includes a casing fixed to an inner surface of the cover, the casing having a vent inlet communicating with the vent of the cover and a vent outlet communicating with an inside of the magnetic disk drive, and a first filter contained in the casing at a position adjacent to the vent inlet, the first filter being formed from a plurality of fibers extending in a direction substantially parallel to that of an air flow from the vent inlet to the vent outlet. The breather filter unit further includes a second filter bonded to the casing so as to cover the vent outlet, and an activated carbon layer contained in the casing at a position between the first filter and the second filter.

Abstract: A magnetic disk drive having one or more magnetic disks, one or more read/write heads each recording or reproducing information for a corresponding one of the magnetic disks, a servo head reading control information from a predetermined one of the magnetic disks, and an actuator supporting the one or more read/write heads and the servo head includes first leads extending from the one or more read/write heads along one side of the actuator, and second leads extending from the servo head along the other side of the actuator so that the second leads can be distanced in space from the first leads.

Abstract: A magnetic disk apparatus including magnetic disks and a magnetic head assembly for access to the magnetic disks. The magnetic head assembly includes a head carriage having a hub and integral head arms, magnetic heads being carried by the head arms. A flexible printed circuit is attached to the side surface of the head carriage via a double sided pressure sensitive adhesive tape which provides a layer of elastomeric material to mitigate a deformation of the head carriage relative to the flexible printed circuit and the bearings supporting the head carriage to improve the off-track of the magnetic disks.