Stock material or miscellaneous articles – Magnetic recording component or stock – Thin film media
Reexamination Certificate
2006-10-03
2006-10-03
Bernatz, Kevin M. (Department: 1773)
Stock material or miscellaneous articles
Magnetic recording component or stock
Thin film media
C428S848500, C360S016000
Reexamination Certificate
active
07115328
ABSTRACT:
The present invention provides a master disk that can easily be brought into contact with and separated from a magnetic recording medium, and can accommodate foreign matters. This master disk transfers a predetermined magnetic pattern onto a magnetic recording medium that can record magnetic information. In the master disk, there are a magnetic pattern formation region in which the magnetic pattern is formed, and a blank region in which the magnetic pattern is not formed. A concave portion for accommodating foreign matters is formed in at least one part of the blank region.
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patent: 6858328 (2005-02-01), Ishida et al.
patent: 2002/0051307 (2002-05-01), Nishikawa et al.
patent: 2002/0150794 (2002-10-01), Hamada et al.
patent: 10-162361 (1998-06-01), None
patent: 10-275435 (1998-10-01), None
patent: 2000-339681 (2000-12-01), None
patent: 2002-008230 (2002-01-01), None
patent: 2002-074655 (2002-03-01), None
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JPO Abstract Translation of JP 2000-339681 A.
Machine Translation of JP 2000-339681-A.
English Translation of JP 12-339681 A (PTO 05-1819).
Hirahara Takao
Komoriya Hitoshi
Nakamura Yutaka
Suzuki Hiroyuki
Bernatz Kevin M.
Fujitsu Limited
Greer Burns & Crain Ltd.
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