Dynamic magnetic information storage or retrieval – Monitoring or testing the progress of recording
Reexamination Certificate
2011-08-23
2011-08-23
Negrón, Daniell L (Department: 2627)
Dynamic magnetic information storage or retrieval
Monitoring or testing the progress of recording
C360S097020, C360S323000
Reexamination Certificate
active
08004782
ABSTRACT:
A tester system includes a tester and a radioactive isotope source. The tester includes a spindle assembly, a disk mounted to the spindle assembly, and a head actuatable over the disk. The radioactive isotope source is positioned in an ionizing location proximate the tester, such that a minimum distance between the radioactive isotope source and an axis of rotation of the disk is less than a radius of the disk.
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Nojaba Michael
Thayamballi Pradeep K.
Tung James Tze-Hwa
Turangan Julius A.
Holder Regina N
Negrón Daniell L
Western Digital Technologies Inc.
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