Abrading – Abrading process – Glass or stone abrading
Reexamination Certificate
2007-11-27
2007-11-27
Shakeri, Hadi (Department: 3723)
Abrading
Abrading process
Glass or stone abrading
C451S057000, C451S533000
Reexamination Certificate
active
10765459
ABSTRACT:
A polishing pad is used when a surface of a glass workpiece is polished for manufacturing a glass substrate of information recording medium. The polishing pad has a nap layer. The nap layer includes an inner layer that contains a plurality of closed cells, and an outer layer. A plurality of pores are formed on the surface of the outer layer. The sizes of the pores are minute compared to those of the closed cells.
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Horisaka Tamaki
Tajima Hirokazu
Hoya Corporation
Marsh Fischmann & Breyfogle
Shakeri Hadi
LandOfFree
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