Recording head with oppositely directed conductors to induce a magnetic write field for longitudinal or perpendicular magnetic recording
AssigneeSeagate Technology LLC
InventorThomas M. Crawford
Life of this patent
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Abstract
A recording head for use with a magnetic storage medium includes a pair of write poles structured and arranged to apply a magnetic write field to the magnetic storage medium and a pair of oppositely directed conductors located adjacent the pair of write poles. The pair of conductors combine to induce the magnetic write field in the pair of write poles. One of the oppositely directed conductors has a positive voltage relative to ground and the other of the conductors has a negative voltage relative to ground, such that the pair of oppositely directed conductors combine to drive the magnetic write field in the same direction. Each of the conductors may be a microstrip waveguide.
Claims20
A recording head for use with a magnetic storage medium, comprising:
- a pair of write poles with a connecting yoke therebetween, said pair of write poles structured and arranged to apply a magnetic write field to the magnetic storage medium;
- and
- a pair of oppositely directed conductors located adjacent said pair of write poles which combine to induce said magnetic write field in said pair of write poles, one of said oppositely directed conductors having a positive voltage relative to ground and the other of said oppositely directed conductors having a negative voltage relative to ground.
A magnetic disc drive storage system, comprising:
- a housing;
- a rotatable magnetic storage medium positioned in said housing;
- and
- a recording head mounted in said housing adjacent to said rotatable magnetic storage medium, said recording head comprising:
- a pair of write poles with a connecting yoke therebetween, said pair of write poles structured and arranged to apply a magnetic write field to the magnetic storage medium;
- and
- a pair of oppositely directed conductors located adjacent said pair of write poles which combine to induce said magnetic write field in said pair of write poles, one of said oppositely directed conductors having a positive voltage relative to ground and the other of said oppositely directed conductors having a negative voltage relative to ground.
A method of using a recording head to apply a magnetic write field to a magnetic storage medium, comprising:
- positioning a pair of write poles, that are structured and arranged to apply the magnetic write field to the magnetic storage medium, adjacent to the magnetic storage medium;
- and
- inducing the magnetic write field in the pair of write poles with a pair of oppositely directed conductors located adjacent the pair of write poles which combine to induce the magnetic write field in the pair or write poles, one of the oppositely directed conductors having a positive voltage relative to ground and the other of the oppositely directed conductors having a negative voltage relative to ground, wherein the oppositely directed conductors combine to drive the magnetic write field in the same direction.
Dependencies are inferred from the claim text.