Stock material or miscellaneous articles – Circular sheet or circular blank – Recording medium or carrier
Reexamination Certificate
2007-04-17
2007-04-17
Hess, Bruce H. (Department: 1774)
Stock material or miscellaneous articles
Circular sheet or circular blank
Recording medium or carrier
C430S270140, C540S131000
Reexamination Certificate
active
10966186
ABSTRACT:
An optical information recording medium whose recording layer includes a phthalocyanine derivative having a substituent of the following formula (I):(in the formula (I), R1, R2and R3each independently represent a substituent other than a hydrogen atom).A dye compound represented by the following formula (II):(in the formula (II), M represents a metal or a metal oxide each of which may have a ligand. R4, R5and R6each independently represent a substituent other than a hydrogen atom, and n is an integer of from 1 to 8).
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S.V. Barkanova et al.: “Effect of Fluorine-Containing Substituents on some characteristics of Phthalocyanines”, Zhurnal Organicheskoi Khimii-Engl. Transl., vol. 15, No. 8, 1979, pp. 1589-1592, XP009043840.
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Saito Naoki
Watanabe Tetsuya
Fujifilm Corporation
Hess Bruce H.
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