Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2006-11-28
2006-11-28
Kim, Paul D (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S417000, C029S603100, C029S603130, C029S603160, C029S603180, C216S022000, C216S038000, C216S041000, C216S062000, C216S067000, C360S122000, C360S125330, C360S317000, C360S318000, C427S127000, C427S128000, C451S005000, C451S041000
Reexamination Certificate
active
07140094
ABSTRACT:
Magnetic heads capable of recording and reading with high sensitivity and resolution are provided by minimizing the outflow of magnetic fluxes from a flux guide to magnetic shields while using a flux guide structure for an MR element. In the magnetic head, magnetic shields exposed on a surface opposite a magnetic recording medium (air bearing surface) and a flux guide exposed between the magnetic heads via a non-magnetic layer are provided, and magnetic fluxes are guided by the flux guide to a magnetoresistive (MR) element formed in a position not exposed on the air bearing surface. The height of the magnetic shields in direction perpendicular to the air bearing surface is less than the distance from the air bearing surface to the MR element.
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A. Marquez, Esq. Juan Carlos
Fisher Esq. Stanley P.
Kim Paul D
Reed Smith LLP
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