Magnetic disk device
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorToru Watanabe
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a magnetic disk device includes a magnetic disk and a magnetic head. The magnetic disk includes a data area on/from which data can be recorded/reproduced. The magnetic head records data on the data area and reproduces data from the data area. An outer edge of the data area includes first outer edge, second outer edge positioned on the further inner circumferential side of the magnetic disk relatively to the first outer edge, and third outer edges each connecting between the first outer edge and the second outer edge. The outer edge of the data area incudes concave parts made inwardly concave toward the inner circumferential side of the magnetic disk at not less than part thereof.
Claims6
A magnetic disk device comprising:
- a magnetic disk including a data area on/from which data can be recorded/reproduced;
- and
- a magnetic head which records data on the data area and reproduces data from the data area, wherein
- an outer edge of the data area includes first outer edge, second outer edge positioned on the further inner circumferential side of the magnetic disk relatively to the first outer edge, and third outer edges each connecting between the first outer edge and the second outer edge, and incudes concave parts made inwardly concave toward the inner circumferential side of the magnetic disk at not less than part thereof.
Dependencies are inferred from the claim text.