Patent ID: 7626786

Claim:
A magnetic head slider comprising: a slider having opposing widthwise edges and including: two air bearing surfaces disposed on both sides on an air inflow side of a medium opposing surface; a shallowly grooved surface disposed between the air bearing surface and an air inflow end; a second shallowly grooved surface extending from the air bearing surfaces toward the respective proximate widthwise edges; side shallowly grooved surfaces disposed rearward of the two air bearing surfaces and extending near an air outflow end; a center air bearing surface disposed at a widthwise center of the air outflow end of the medium opposing surface; a center shallowly grooved surface disposed on the air inflow side of the center air bearing surface; and a deeply grooved surface surrounded by the two air bearing surfaces and the center air bearing surface; and a magnetic head disposed at the center air bearing surface; wherein the ratio of a slider length Lx to a slider width Ly satisfies the following inequality: 1.35≦Lx/Ly≦1.8, the slider width Ly being 0.8 mm or less.