Back to results
US 2013/0075358 A1Published application
Magnetic recording medium and method of manufacturing the same
AssigneeKabushiki Kaisha Toshiba
InventorsKaori KIMURA, Yoshiyuki KAMATA, Satoshi SHIROTORI, Tsuyoshi ONITSUKA
Life of this patent
Estimating the term…
Abstract
A magnetic recording medium a magnetic recording medium includes a soft magnetic layer formed on a substrate, magnetic patterns made of a protruded ferromagnetic layer separated from each other on the soft magnetic layer, and a nonmagnetic layer formed between the magnetic patterns, a nitrogen concentration therein being higher on a surface side than on a substrate side.
Claims10
A method of manufacturing a magnetic recording medium comprising:
- depositing a soft magnetic layer on a substrate;
- depositing a ferromagnetic layer on the soft magnetic layer, followed by patterning the ferromagnetic layer to form magnetic patterns separated from each other;
- and
- forming a nonmagnetic layer between the magnetic patterns, the nonmagnetic layer having a nitrogen concentration higher on a surface side than on a substrate side.
1 more element
Dependencies are inferred from the claim text.