Fujitsu Corporation

Toshiba Storage Device Corporation

Hiroyuki Kubotera

Takahiro Imamura

Tsugito Maruyama

Hiroshi Chiba

Naozumi Tsuda

A head slider includes a medium opposing surface configured to oppose a recording surface of a magnetic recording medium, a head element provided on the medium opposing surface, and an outlet end surface provided on a downstream side of the head element in a direction in which the magnetic recording medium moves relative to the head element, and extending substantially in a perpendicular direction from the medium opposing surface. The outlet end surface has a surface free energy greater than a surface free energy of the medium opposing surface.

Head slider producing reduced lubricant adsorption and magnetic storage apparatus

A flying head slider includes a write head element and a read head element mounted on the slider body. A first transformable actuator serves to protrude the write head element toward a recording medium. A second transformable actuator serves to protrude the read head element toward the recording medium. The first and second transformable actuators can separately be controlled. The amount of protrusion can thus be individually controlled for the write head element and the read head element. The flying height can individually be set above the surface of the recording medium for the write head element and the read head element. Such an adjustment of the flying height enables the write head element and the read head element to simultaneously get closest to the recording medium.

Flying head slider and recording medium drive

A head slider, of a disk apparatus, flying over a rotary magnetic recording disk, having a characteristic less dependent on the atmospheric pressure. The head slider of a disk apparatus comprises: a magnetic element adapted to fly over a magnetic recording medium; a medium opposing surface being formed with, with respect to the direction in which the medium moves, an inflow pad portion at the upstream end and a pair of side rail portions extending downstream from the inflow pad portion, and a center pad at the central part and a pair of side pads on the sides of the center pad and upstream of the center pad at the downstream end of the head slider. The center pad and the side pads are constituted so that a positive pressure generated by the side pads is greater than a positive pressure generated by the center pad.

Head slider for disk apparatus with rail portions

Head slider for disk apparatus

A head slider including a disk-facing surface having an inflow end and outflow end, inflow-end-side rail, negative pressure part, three extension rails, a pair of siderails, an inflow-end-side-positive-pressure part, and outflow-end-side-positive-pressure part, and an outflow end rail. The extension rails protrude towards the negative pressure part, and are formed lower than the inflow-end-side-positive-pressure part. As a result of air flowing in from the inflow end, a positive pressure (flotation force) is imparted to the inflow-end-side-positive-pressure part, and a negative pressure is imparted to the negative pressure part. The negative pressure which cancels the positive pressure acts to a suitable extent without being affected by atmospheric pressure variations, so the flotation amount is controlled to a fixed value regardless of variations of altitude (atmospheric pressure).

Head slider having extension rails to provide uniform flotation and magnetic disk device including the same

A head arm of a magnetic disk device has reduced air flow turbulence around the head arm using one or more of several configurations, such as multiple apertures, various chamfered edges, various protrusion configurations, and head arm shapes.

Growing community of inventors

Kawasaki, Japan

Hiroyuki Kubotera