Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Reexamination Certificate
2006-11-20
2009-02-10
Mulvaney, Elizabeth (Department: 1794)
Stock material or miscellaneous articles
Circular sheet or circular blank
Recording medium or carrier
C428S064500, C430S270130, C204S192100
Reexamination Certificate
active
07488526
ABSTRACT:
To provide a sputtering target used for the formation of a recording layer of a recordable optical recording medium, wherein the sputtering target contains Bi and Fe and the packing density of the sputtering target is greater than 96%, and a recordable optical recording medium manufactured by using the sputtering target, which the recordable optical recording medium is capable of high-density recording even in the blue laser's wavelength range.
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Fujii Toshishige
Fujiwara Masayuki
Hayashi Yoshitaka
Sasa Noboru
Cooper & Dunham LLP
Mulvaney Elizabeth
Ricoh & Company, Ltd.
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