Electricity: measuring and testing – Magnetic – Magnetic information storage element testing
Reexamination Certificate
2006-06-13
2006-06-13
LeDynh, Bot (Department: 2862)
Electricity: measuring and testing
Magnetic
Magnetic information storage element testing
C324S213000, C360S075000
Reexamination Certificate
active
07061235
ABSTRACT:
A magnetic head and disk tester comprises a base, a spindle for rotationally supporting a magnetic disk, a carriage for supporting a magnetic head support which carries a magnetic head with a magnetic read/write element, and a dual-stage positioning system that moves the carriage in two perpendicular directions X and Y. The magnetic head support, the magnetic head and the magnetic read/write element have a common longitudinal axis Z. The head support is positioned such that the longitudinal axis Z forms a predetermined angle between 0° and 90° with respect to the Y direction. Preferably the predetermined angle is about 45 degrees. When the head is driven from one point of an inner track to a point of an outer track, the displacement of the head along X axis is relatively large and the displacement of the head along Y axis is relatively small.
REFERENCES:
patent: 4902971 (1990-02-01), Guzik et al.
patent: 5254946 (1993-10-01), Guzik
patent: 5801531 (1998-09-01), Viches et al.
patent: 5923499 (1999-07-01), Hagen
patent: 6459260 (2002-10-01), Bonin et al.
Guzik Nahum
St. Dennis Michael Christopher
Greenberg & Traurig, LLP
Guzik Technical Enterprises
Lappin Mark G.
LeDynh Bot
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