Integrated bidirectional Recording head micropositioner for...

Details Integrated bidirectional Recording head micropositioner for... Integrated bidirectional Recording head micropositioner for...

2005-02-22

2005-02-22

Heinz, A. J. (Department: 2653)

Dynamic magnetic information storage or retrieval

Head mounting

For adjusting head position

C360S234700, C360S294700

Reexamination Certificate

active

06859346

ABSTRACT:
Transducer elements of recording heads for magnetic storage media are moved independently in either of two directions with respect to the slider of the recording head. The motion is controlled using a micropositioner having magnetic coils integrated into the recording head. The transducer moves in the x direction between data tracks and in the z direction perpendicular to the surface of the magnetic storage medium. The micropositioners are used for small-scale positioning of the transducers over data tracks and to adjust fly heights. Because of the high minimum resonant frequencies and the low mass of the transducers, the micropositioners also improve settling times associated with track following. The micropositioners can be used during fabrication for dimensional control of recording head components. The motion of the transducers in the z direction enables the recording heads to be used reliably in the presence of asperities and changing ambient pressures and temperatures.

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Co-pending U.S. Appl. No. 10/342,615, filed Jan. 13, 2003, to Dallas W. Meyer, (43 pages), and 7 sheets of accompanying drawings. Note: In an Office Action mailed in this case on Aug. 25, 2004, claims 1-34 were rejected under 35 U.S.C. § 102 (e) by U.S. Appl. No. 6,768,610 to Morris, et al., and claims 35-42 were rejected under 35 U.S.C. § 103(a) by Morris, et al. in view of U.S. Appl. No. 6,078,468 to Fiske.
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