Dynamic magnetic information storage or retrieval – Record medium – Disk
Reexamination Certificate
2009-02-26
2011-10-04
Dinh, Tan X (Department: 2627)
Dynamic magnetic information storage or retrieval
Record medium
Disk
C250S3960ML, C430S296000, C430S942000
Reexamination Certificate
active
08031436
ABSTRACT:
When performing writing on a substrate applied with a resist by rapidly vibrating electron beam in a direction orthogonal to a radial direction of the substrate and X-Y deflecting the electron beam while rotating the substrate in one direction, a long element is written by scanning the electron beam with the middle position of a 2-bit signal length as the center position of the electron beam so as to completely fill the area of the writing length reduced by a predetermined ratio and an unwritten portion of predetermined width remaining on each side of the long element with respect to a final 2-bit signal length on a magnetic disk medium.
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Komatsu Kazunori
Usa Toshihiro
Dinh Tan X
Fujifilm Corporation
Young & Thompson
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