Abstract: A magnetic disk device includes a magnetic disk, and a magnetic head slider. The slider has a magnetic head, a plurality of surfaces which are formed sequentially from an adjacent side to a magnetic disk, and a slider rail surface which is arranged near an air flow-out edge on a nearest surface of the plurality of surfaces. The slider rail surface includes a long sideways rail surface on an air flow-in side and a lengthwise rail surface on an air flow-out side. The nearest surface of the plurality of surfaces is arranged only in a center area with respect to a width of the slider near the air flow-out edge and has a width substantially less than the width of the slider. An area of the long sideways rail surface is larger than an area of the lengthwise rail surface.

Abstract: A magnetic disk apparatus includes a rotation mechanism for driving a magnetic disk, a magnetic head slider being floated in close proximity to a surface of the magnetic disk, a recording/reproduction element for performing recording and playback of information, a drive unit for causing a distance between the record/reproduction element and the magnetic disk to change, and means for performing position determination of the magnetic head slider, wherein the apparatus has a detection unit for permitting the drive unit to gradually reduce the distance between the record/reproduction element and the magnetic disk and for detecting occurrence of contact therebetween, and a control unit for controlling the drive unit in such a way as to cause, the record/reproduction element to shift in position by a fixed amount to thereby let the distance between this element and magnetic disk increase accordingly.

Abstract: A magnetic disk device, which is provided with a magnetic head slider mounted with a magnetic head and a magnetic disk, and of which the magnetic head slider has the possibility of contacting the magnetic disk at the vicinity of the magnetic head. The magnetic head slider has the size of 1.25 mm or less in length, 1 mm or less in width and 0.3 mm or less in thickness, and the friction force exerted between the magnetic head slider and the magnetic disk is 10 mN or less. The magnetic head comprises four substantially parallel surfaces and the depth from a first surface which is the most adjacent surface to the magnetic disk to a second surface is 10 nm to 50 nm, the depth from the second surface to a third surface is 50 nm to 200 nm, and the depth from the third surface to a fourth surface is 400 nm to 1 &mgr;m.

Abstract: A magnetic disc apparatus includes a magnetic disc, a slider incorporating lifting rails or lifting pads, a magnetic head provided to a lifting rail or a lifting pad on the outflow end side, a suspension supporting the slider, and a carriage attached to the suspension. The slider has an inverted stepped wall formed in a shape such that it is caved in a direction from the inflow end to the outflow end of the slider, and a bleed surface formed at the outflow end side of the inverted stepped wall and caved from the lifting rails or the lifting pads. An action point of an equivalent load is located offset from the inverted stepped wall of the slider toward the inflow end of the slider.

Abstract: A magnetic head slider in which a leading pad is projected in a thicknesswise direction of the slider, in comparison with a trailing pad so as to reduce vibration caused by contact between a flat medium surface of a disc and the slider carrying thereon a magnetic head, to reduce variation in flying height caused by wavy unevenness of the medium surface, and to reduce variation in atmospheric pressure around the slider, thereby it is possible to enhance the recording density and the reliability of the magnetic head slider while reducing the costs thereof. Further, a magnetic disc unit using the above-mentioned magnetic head slider.

Abstract: A magnetic disk unit includes a magnetic disk attached to a spindle so as to be rotatable, a slider having a magnetic head for reading/writing data onto/from the magnetic disk, a suspension for providing the slider with a predetermined load, and an actuator arm for positioning the slider attached to the suspension on the magnetic disk. A first pad including the magnetic head and second pads including no magnetic heads are disposed on an air bearing surface of the slider. During rotation of said magnetic disk, a part of the first pad keeps in contact with the magnetic disk. A load point of the suspension with respect to the slider is positioned between a leading edge of the slider and a position located at a distance equivalent to substantially 0.42 times a whole length of the slider from the leading edge of the slider.

Abstract: A magnetic head slider having a plurality of surfaces which are formed sequentially from an adjacent side to a magnetic disk, and a slider rail surface, which is arranged near an air flow-out edge on a nearest surface of the plurality of surfaces including a long sideways rail surface on an air flow-in side and a lengthwise rail surface on an air flow-out side, has a magnetic head. An area of the long sideways rail surface is larger than an area of the lengthwise rail surface.

Abstract: A magnetic disk device having a magnetic disk, a magnetic head slider with a magnetic head mounted thereon and having a first surface, a second surface, a third surface and a fourth surface which are formed sequentially from an adjacent side to the magnetic disk, and a gap of a magnetic head arranged on the first surface. A relation of d1<d2<d3 is established where d1 is a depth from the first surface to the second surface, d2 is a depth from the second surface to the third surface, and d3 is a depth from the third surface to the fourth surface. The magnetic head slider has a floating pitch attitude of at least 50 micro-radians with respect to the magnetic disk.

Abstract: A magnetic disk drive includes a magnetic head slider, a magnetic head slider support mechanism for supporting the magnetic head slider and moving it to a predetermined position, and a load/unload mechanism for detaching the magnetic head slider from the surface of a magnetic disk or moving it thereto. When the magnetic head slider is detached from the magnetic disk surface for unloading, the magnetic head slider support mechanism is restrained against displacement in at least one direction perpendicular to the magnetic disk surface by a restraining part which is provided at a position, on other than the load/unload mechanism, between the magnetic head slider and a pivot of the magnetic head slider support mechanism.

Abstract: A pickup is moved in the radial direction of a partial CD-R, and the end position of a recorded area in the partial CD-R is detected based on a feature signal (on track signal) in the radial direction obtained during the movement. Information recorded in the recorded area is reproduced based on the detected end position, so that an accessing inability can be avoided, and the information in the recorded area can correctly be reproduced. Thus, information recorded in the partial CD-R can correctly be reproduced.

Abstract: A magnetic head slider for sliding on the magnetic disk, which comprises:

Abstract: Employed is a structure for moving by a micro-actuator not a read/write element but an air-bearing surface pad. The air-bearing surface pad is arranged nearer to the leading end than the read/write element. This arrangement allows the read/write element portion to have a sufficient size, making it possible to mount the currently used read/write element and associated wiring structure. The individual adjustment of a flying height leads to the increased recording density. Moving the read/write element away from the disk during loading/unloading operations can enhance reliability.

Abstract: A magnetic head slider has a magnetic head mounting surface holding a magnetic head, to be kept closest to a magnetic disk when the magnetic head slider is in operation, a slider rail surface contiguous with a surface, on the side of an air inlet end, and opposite sides of a portion, near an air outlet end, of the magnetic head and extending near to the air outlet end, a step bearing surface formed at least on the side of the air inlet end of the slider rail surface, and a negative-pressure groove formed so as to surround the step bearing surface. The magnetic head mounting surface is typically formed on an alumina protective film protecting the magnetic head. The variation of the flying height of the magnetic head slider with respect to a rolling direction is reduced and a proximity ability to approach the magnetic disk is improved.

Abstract: A magnetic head slider mounted on a magnetic disk unit for supporting a magnetic head that writes and reads information to and from a magnetic disk is constructed such that a depth &dgr;s1 from the surfaces of leading and trailing pads, which come into contact with a medium surface when the disk is at rest, to stepped surfaces formed on the air inflow side of the leading pads, a depth &dgr;s2 from the contact surfaces to stepped surfaces formed on the air inflow side of the trailing pad and a step depth &dgr;s3 from the contact surfaces to the surfaces of side rails are in a relation of &dgr;s1≦&dgr;s2≦&dgr;s3. With this arrangement, the slider can follow the waved medium surface at a low flying height with a small flying height fluctuation, thus realizing high density recording, high reliability and reduced cost of the magnetic disk unit.

Abstract: A magnetic disk device having a magnetic disk, a magnetic head slider with a magnetic head mounted thereon and having a first surface, a second surface, a third surface and a fourth surface which are formed sequentially from an adjacent side to the magnetic disk, and a gap of a magnetic head arranged on the first surface. A relation of d1<d2<d3 is established where d1 is a depth from the first surface to the second surface, d2 is a depth from the second surface to the third surface, and d3 is a depth from the third surface to the fourth surface. The magnetic head slider has a floating pitch attitude of at least 50 micro-radians with respect to the magnetic disk.

Abstract: A magnetic head slider having a plurality of surfaces which are formed sequentially from an adjacent side to a magnetic disk, and a slider rail surface, which is arranged near an air flow-out edge on a nearest surface of the plurality of surfaces including a long sideways rail surface on an air flow-in side and a lengthwise rail surface on an air flow-out side, has a magnetic head. An area of the long sideways rail surface is larger than an area of the lengthwise rail surface.

Abstract: A magnetic head slider for sliding on a magnetic disk includes a leading edge, a trailing edge, an air bearing surface having a front step bearing of submicron depth made from the leading edge, and a rail surface made from the front step bearing. A negative pressure recess which is more profound than the front step bearing is made from the rail surface, and a side step bearing having a depth identical with the front step bearing is made from the rail surface. The ratio of the depth R of the recess to the depth &dgr;S of the front step bearing is R/&dgr;s>5.

Abstract: A magnetic head supporting apparatus having a magnetic head for reading and writing information on a magnetic disc, a slider for mounting the magnetic head, and a suspension for supporting the slider. An IC chip for controlling a signal of the magnetic head is mounted on a heat insulating substrate which substantially prevents conduction of heat therethough, and the heat insulating substrate is mounted to the suspension.

Abstract: A magnetic head slider assembly is provided, in which a flying height of the head slider is not changed when a peripheral speed and a yaw angle of the magnetic head slider assembly with respect to a magnetic disk are changed according to the change of a magnetic head slider radial position, so that a difference between flying heights in floating profiles become minimum. The magnetic head slider is provided with two stepped surfaces via a difference portion with respect to a contact surface of an inflow pad or an outflow pad of the magnetic head slider (1), wherein a ratio &dgr;s/&dgr;r between a depth &dgr;s of the first stepped surface and a depth &dgr;r of the second stepped surface with respect to the contact surface and a ratio xp/L between a length L of the slider in an air stream inflow direction and a distance xp between an air stream inflow end and a dimple position of the slider are respectively set in a range 0.047≦&dgr;s/&dgr;r≦0.364 and 0.002≦xp/L≦0.4, or a range 0.

Abstract: A magnetic disk device, which is provided with a magnetic head slider mounted with a magnetic head and a magnetic disk, and of which the magnetic head slider has the possibility of contacting the magnetic disk at the vicinity of the magnetic head,