Hitachi, Ltd.

Western Digital Technologies, Inc.

Hitachi Global Storage Technologies Japan, Ltd.

Masayoshi Endo

Hidekazu Kohira

Kiyoshi Hashimoto

Masaaki Matsumoto

Shinsuke Higuchi

Akira Iida

Akio Takakura

Yoshinori Takeuchi

Cherngye Hwang

Suping Song

Randall George Simmons

Yoshihori Takeuohi

A magnetic write head having trailing magnetic shield and a trailing magnetic return pole that are recessed from the media facing surface. The magnetic write head includes a write pole, a trailing shield that is separated from the write pole by a non-magnetic trailing gap layer and a trailing magnetic return pole that is connected with the trailing magnetic shield. The trailing magnetic return pole and at least a portion of the trailing magnetic shield have surfaces that face the media facing surface. The surface of the trailing magnetic return pole and at least a portion of the surface of the trailing magnetic shield taper away from the media facing surface. This recess prevents far track interference by preventing stray magnetic fields from the trailing magnetic shield and trailing magnetic return pole from inadvertently affecting the magnetic media.

Magnetic write head having recessed trailing shield and trailing return pole

A magnetic head slider, for sliding on a magnetic disk, which has 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 deeper than the front step bearing, is formed as a recess from the rail surf ace, and a side step bearing with a depth identical to that of the front step bearing is made from the rail surface. Side padB are provided which each have a width W and length L, wherein W is greater than L.

Magnetic head slider with side pads which each have a width W and a length L, wherein W&#x3e;L

A magnetic head slider, for sliding on a magnetic disk, which comprises 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 with a depth identical to that of the front step bearing is made from the rail surface, wherein the ratio of depth R of the recess and depth &#x3b4;s of the front step bearing is R/&#x3b4;s&#x2267;5.

Magnetic head slider having optimized ratio of negative pressure bearing to a front or center step bearing

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.

Magnetic head slider having optimized ratio of negative pressure recess to front step bearing

Growing community of inventors

Odawara, Japan

Masayoshi Endo