Magnetic recording medium and magnetic recording and reproducing device
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorMio Okada
Life of this patent
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Abstract
According to one embodiment, a magnetic recording medium includes a surface area including a pair of main surfaces and a side provided between the main surfaces, a recording area formed to carry out magnetic recording, a non-recording area other than the recording area and a contaminant collecting portion provided in at least a part of the surface area within the non-recording area and having a surface free energy higher than a surface free energy of the surface area within the recording area.
Claims9
A magnetic recording medium including a recording area formed to carry out magnetic recording, and a non-recording area other than the recording area,
- the magnetic recording medium comprising:
- a surface area including a pair of main surfaces and a side provided between the main surfaces;
- and
- a contaminant collecting portion provided in at least a part of the surface area within the non-recording area, and having a surface free energy higher than a surface free energy of the surface area within the recording area.
A magnetic recording and reproducing device comprising:
- a magnetic recording medium comprising:
- a surface area including a pair of main surfaces and a side provided between the main surfaces;
- a recording area formed to carry out magnetic recording;
- a non-recording area other than the recording area;
- and
- a contaminant collecting portion provided in at least a part of the surface area within the non-recording area, and having a surface free energy higher than a surface free energy of the surface area within the recording area.
Dependencies are inferred from the claim text.