Kabushiki Kaisha Toshiba

Takayuki Yamamoto

Yoshiyuki Kamata

Akira Kikitsu

Hiroyuki Hyodo

Masatoshi Sakurai

Koji Sonoda

Masaki Ookawa

According to one embodiment, a patterned magnetic recording media has a magnetic recording layer and a protective layer formed on a substrate, in which the magnetic recording layer including a magnetic material patterned in tracks and a nonmagnetic material filled in between the tracks in a data area, and has a recessed portion formed in an area within 1 mm from an outer media end and extending to the media end. The recessed portion being formed 1 to 50 nm deeper than the data area.

Patterned magnetic recording media, stamper for manufacture of patterned magnetic recording media, method of manufacturing patterned magnetic recording media, and magnetic recording/reproduction apparatus

A magnetic recording medium is obtained by easily patterning a magnetic recording layer without deteriorating its electromagnetic conversion characteristics, by forming a silicon-based protective film between the magnetic recording layer and a photoresist, and performing dry etching and oxygen plasma processing.

Magnetic recording medium, method of manufacturing the same, and magnetic recording/reproduction apparatus

A magnetic head for use in the vicinity of a magnetic recording medium, comprising a substrate, a close contact layer laminated on the substrate, and a protective layer which is laminated on the close contact layer and which faces the magnetic recording medium, the protective layer comprising a first layer formed by laminating a laminate material on the close contact layer at a first bias voltage by a filtered cathodic vacuum arc (FCVA) process, and a second layer formed by laminating the laminate material on the first layer by the FCVA process at a second bias voltage which is higher than the first bias voltage.

Growing community of inventors

Ome, Japan

Takayuki Yamamoto