Patent ID: 7436628

Claim:
A perpendicular magnetic recording head comprising: a main magnet pole layer formed of magnetic material; and a return yoke layer being formed of magnetic material and opposing to the main magnet pole layer with an intermediary of a non-magnetic gap layer on the side of the surface opposing to a recording medium and on the trailing side of the main magnet pole layer, wherein the end surface of the main magnet pole layer on the trailing side is depressed at the center in the direction of the width of the track on the trailing side with respect to one of the end on the trailing side, and wherein the end surface of the return yoke layer on the leading side is formed with a convex portion at a position opposing to a concave portion formed on the end surface of the main magnet pole layer on the trailing side in the direction of the film thickness, and the distance between the main magnet pole layer and the return yoke layer in the direction of the film thickness is constant.