Hitachi Global Storage Technologies Netherlands B.v.

Satoru Ookubo

Hidekazu Kohira

Kiyoshi Hashimoto

Jianhua Li

Junguo Xu

Yuichi Aoki

A head-slider which is configured to fly above a magnetic-recording disk. The head-slider includes a disk-facing side, which faces the magnetic-recording disk. The disk-facing side includes a plurality of surfaces including at least: a step bearing surface; a rail surface, which protrudes toward the magnetic-recording disk and is configured to exert a positive pressure; a deep-recessed surface, which is formed deeper than the step bearing surface and is configured to exert a negative pressure; an extended lateral surface, which is formed at substantially a same depth as the step bearing surface and disposed outside the deep-recessed surface in a width direction of the head-slider; and, an extended rear surface, which is formed at substantially the same depth as the step bearing surface and disposed at a trailing edge of the head-slider, and contiguous with the extended lateral surface.

Magnetic disk drive slider having a trailing edge extended rear surface

A disk drive. The disk drive includes a disk and a head-slider. The head-slider includes an air-bearing surface. The air-bearing surface includes a trailing-edge rail surface, an inner trailing-edge pad, and an outer trailing-edge pad. The pad surface of the outer trailing-edge pad includes a straight outer edge slanting outward; and, the angle of the outer edge with respect to the longitudinal direction of the head-slider is &#x3b2;. The pad surface of the inner trailing-edge pad includes a straight inner edge slanting inward; and, the angle of the inner edge with respect to the longitudinal direction of the head-slider is &#x3b2;. For absolute values of skew angles at an outermost data track position and an innermost data track position on the disk that are denoted by &#x3b1;and &#x3b1;, respectively, the following conditions are satisfied:&#x3b1;&#x2266;&#x3b2;,&#x3b1;+&#x3b2;&#x2266;90&#xb0;, and &#x3b1;&#x2266;&#x3b2;,&#x3b1;+&#x3b2;&#x2266;90&#xb0;.

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Kanagawa, Japan

Satoru Ookubo