Method for utilizing a bulk erase tool to erase perpendicularly recorded media
AssigneeHitachi Global Storage Technologies Netherlands B.V.
InventorTaeyong Yoon
Life of this patent
Estimating the term…
Abstract
A method for utilizing a bulk erase tool to erase perpendicularly recorded media is provided. A bulk erase tool having a first polarity erase magnet and a second polarity erase magnet is received. An offset is provided between the first polarity erase magnet and the second polarity erase magnet, wherein the offset provides a non-parallel non-vertical applied magnetic field suitable for erasing perpendicularly recorded media.
Claims20
A method for utilizing a bulk erase tool to erase perpendicularly recorded media on a hard disk drive comprising:
- receiving said bulk erase tool comprising a first polarity erase magnet and a second polarity erase magnet;
- providing an offset between said first polarity erase magnet and said second polarity erase magnet, wherein said offset provides a non-parallel non-vertical applied magnetic field suitable for erasing perpendicularly recorded media on said hard disk drive without demagnetizing a motor magnet of said hard disk drive;
- and
- providing a flux guide to said bulk erase tool, said flux guide for redirecting said non-parallel non-vertical applied field to provide a location of protection for a motor magnet of a hard disk drive, when said hard disk drive is inserted into said applied field of said bulk erase tool.
A method for utilizing a bulk erase tool to erase perpendicularly recorded media on a disk of a hard disk drive, said method comprising:
- receiving said bulk erase tool comprising a first polarity erase magnet and a second polarity erase magnet;
- providing an offset between said first polarity erase magnet and said second polarity erase magnet, wherein said offset generates a non-parallel non-vertical applied magnetic field suitable for erasing perpendicularly recorded media;
- and
- providing a flux guide to said bulk erase tool, said flux guide for redirecting said non-parallel non-vertical applied field to provide a location of protection for a motor magnet of a hard disk drive, when said hard disk drive is inserted into said applied field of said bulk erase tool.
A method for utilizing a bulk erase tool to erase perpendicularly recorded media on a disk of a hard disk drive, said method comprising:
- receiving said bulk erase tool comprising a first polarity erase magnet and a second polarity erase magnet;
- providing an offset between said first polarity erase magnet and said second polarity erase magnet, wherein said offset provides a non-parallel non-vertical applied magnetic field suitable for erasing perpendicularly recorded media;
- and
- providing a flux guide formed of a magnetic material to said bulk erase tool, said flux guide is fixedly coupled with said second polarity erase magnet, said flux guide for redirecting said non-parallel non-vertical applied field to provide a location of protection for a motor magnet of a hard disk drive, when said hard disk drive is inserted into said applied field of said bulk erase tool.
A method for utilizing a bulk erase tool to erase perpendicularly recorded media on a hard disk drive comprising:
- means for receiving said bulk erase tool comprising a first polarity erase magnet and a second polarity erase magnet;
- means for providing an offset between said first polarity erase magnet and said second polarity erase magnet, wherein said offset provides a non-parallel non-vertical applied magnetic field suitable for erasing perpendicularly recorded media on said hard disk drive without demagnetizing a motor magnet of said hard disk drive;
- and
- means for providing a flux guide to said bulk erase tool, said flux guide for redirecting said non-parallel non-vertical applied field to provide a location of protection for a motor magnet of a hard disk drive, when said hard disk drive is inserted into said applied field of said bulk erase tool.
Dependencies are inferred from the claim text.