Magnetic head, magnetic tape device including the magnetic...

Details Magnetic head, magnetic tape device including the magnetic... Magnetic head, magnetic tape device including the magnetic...

2006-09-12

2006-09-12

Tupper, Robert S. (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Core

Reexamination Certificate

active

07106555

ABSTRACT:
A magnetic head in which two sides, which are defined as viewed in a core width direction, of first, second, and third end surfaces of a magnetic recording head extend along a longitudinal direction of recording tracks, so that it is possible to reduce spreading of leakage magnetic field extending from the two sides of the magnetic recording head in the core width direction between an upper core layer and a lower core layer protrusion through a gap layer. If the leakage magnetic field extending from both sides of the gap layer is reduced, it is possible to prevent the formation of an erased area beyond a multiple recording area. It is possible to maintain the S/N ratio of a reproduction signal at a proper value when reading out magnetic information from a magnetic tape.

REFERENCES:
patent: 4799118 (1989-01-01), Yamada et al.
patent: 4970615 (1990-11-01), Gau
patent: 6563669 (2003-05-01), Daby et al.
patent: 11-328616 (1999-11-01), None
patent: 2001-052304 (2001-02-01), None

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