Dynamic magnetic information storage or retrieval – Record copying – Contact transfer
Reexamination Certificate
2005-04-26
2005-04-26
Tran, Sinh (Department: 2651)
Dynamic magnetic information storage or retrieval
Record copying
Contact transfer
C360S015000, C360S016000
Reexamination Certificate
active
06885513
ABSTRACT:
A system and method for incrementally recording blocks of data such as servo information on magnetic media such as hard disks, flexible disks or tapes. The system comprises a master element with permeable features configured according to the block of data and corresponding to a small fraction of the area of the medium. A predetermined portion of the medium is advanced and brought in proximity to the master element. An electromagnet applies a localized field to copy the data to the selected portion of the medium. The field of the electromagnet is decreased before the next predetermined portion of the medium is advanced thereby avoiding damage to previously recorded data.
REFERENCES:
patent: 3686649 (1972-08-01), Behr
patent: 3869711 (1975-03-01), Bernard et al.
patent: 5333140 (1994-07-01), Moraru et al.
patent: 5784296 (1998-07-01), Baker et al.
patent: 5870244 (1999-02-01), Yokomachi et al.
patent: 5991104 (1999-11-01), Bonyhard
patent: 6304407 (2001-10-01), Baker et al.
patent: 6377414 (2002-04-01), Wang
patent: 6469848 (2002-10-01), Hamada et al.
patent: 6602301 (2003-08-01), Komatsu et al.
patent: 6785070 (2004-08-01), Taniguchi et al.
patent: 20020080507 (2002-06-01), Taniguchi et al.
patent: 20020101670 (2002-08-01), Ishida et al.
Ishida, et al., “Printed media technology for an effective and inexpensive servo track writing of HDDs”,IEEE Trans. Magn., vol. 37, No. 4, Jul., 2001, pp1875-1877.
Sugita, et al., “A novel magnetic contact duplication technique for servo-writing on magnetic disks”,IEEE Trans. Magn., vol. 36, No. 5, Sep., 2000, pp2285-2287.
Saito, et al., “Magnetic printing technique for longitudinal thin film media with high coercivity of 6000 Oe”,J. Appl. Phys., vol. 91, No. 10, May, 2002, pp8688-8690.
Baker, “Tradeoffs for magnetic printing of servo patterns”,J. Appl. Phys., vol. 91, No. 10, May, 2002, pp8691-8693.
Wang, “Photo thermal patterning on magnetic media”,J. Appl. Phys., vol. 91, No. 10, May, 2002, pp8685-8687.
Baker, “Thermal transfer in magnetooptic printing of servo patterns”,IEEE Trans. Magn., vol. 38, No. 5, Sep., 2002, pp2198-2200.
Saito, et al., “A novel magnetic printing method for perpendicular recording media”,IEEE Trans. Magn., vol. 38, No. 5, Sep., 2002, pp2195-2197.
Sugita, et al., “Magnetization patterns of slave media duplicated by using patterned master media”,J. Appl. Phys., vol. 91, No. 10, May, 2002, pp8694-8696.
Rodriguez Glenda
Tran Sinh
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